Journal of Microbiology

Review

Extensive Genomic Rearrangement of Catalase-Less Cyanobloom-Forming Microcystis aeruginosa in Freshwater Ecosystems: Minkyung Kim, Jaejoon Jung, Wonjae Kim, Yerim Park, Che Ok Jeon, Woojun Park; J. Microbiol. 2024;62(11):933-950. Published online October 8, 2024; DOI: https://doi.org/10.1007/s12275-024-00172-7

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Many of the world's freshwater ecosystems suffer from cyanobacteria-mediated blooms and their toxins. However, a mechanistic understanding of why and how Microcystis aeruginosa dominates over other freshwater cyanobacteria during warmer summers is lacking. This paper utilizes comparative genomics with other cyanobacteria and literature reviews to predict the gene functions and genomic architectures of M. aeruginosa based on complete genomes. The primary aim is to understand this species' survival and competitive strategies in warmer freshwater environments. M. aeruginosa strains exhibiting a high proportion of insertion sequences (~ 11%) possess genomic structures with low synteny across different strains. This indicates the occurrence of extensive genomic rearrangements and the presence of many possible diverse genotypes that result in greater population heterogeneities than those in other cyanobacteria in order to increase survivability during rapidly changing and threatening environmental challenges. Catalase-less M. aeruginosa strains are even vulnerable to low light intensity in freshwater environments with strong ultraviolet radiation. However, they can continuously grow with the help of various defense genes (e.g., egtBD, cruA, and mysABCD) and associated bacteria. The strong defense strategies against biological threats (e.g., antagonistic bacteria, protozoa, and cyanophages) are attributed to dense exopolysaccharide (EPS)-mediated aggregate formation with efficient buoyancy and the secondary metabolites of M. aeruginosa cells. Our review with extensive genome analysis suggests that the ecological vulnerability of M. aeruginosa cells can be overcome by diverse genotypes, secondary defense metabolites, reinforced EPS, and associated bacteria.

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Cyanophage Infections in a Sponge Intracellular Cyanobacterial Symbiont
Tzipora Peretz, Esther Cattan‐Tsaushu, Chiara Conti, Benyamin Rosental, Laura Steindler, Sarit Avrani
Environmental Microbiology.2025;[Epub] CrossRef
Public goods-mediated bacterial interplay in aquatic ecosystems
Yerim Park, Wonjae Kim, Jihye Bae, Woojun Park
Water Research.2025; 287: 124310. CrossRef
Horizontal Gene Transfer and Recombination in Cyanobacteriota
Devaki Bhaya, Gabriel Birzu, Eduardo P.C. Rocha
Annual Review of Microbiology .2025; 79(1): 685. CrossRef

Journal Article

Autotrophy to Heterotrophy: Shift in Bacterial Functions During the Melt Season in Antarctic Cryoconite Holes: Aritri Sanyal, Runa Antony, Gautami Samui, Meloth Thamban; J. Microbiol. 2024;62(8):591-609. Published online May 30, 2024; DOI: https://doi.org/10.1007/s12275-024-00140-1

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Abstract PDF

Microbes residing in cryoconite holes (debris, water, and nutrient-rich ecosystems) on the glacier surface actively participate in carbon and nutrient cycling. Not much is known about how these communities and their functions change during the summer melt-season when intense ablation and runoff alter the influx and outflux of nutrients and microbes. Here, we use high-throughput-amplicon sequencing, predictive metabolic tools and Phenotype MicroArray techniques to track changes in bacterial communities and functions in cryoconite holes in a coastal Antarctic site and the surrounding fjord, during the summer season. The bacterial diversity in cryoconite hole meltwater was predominantly composed of heterotrophs (Proteobacteria) throughout the season. The associated functional potentials were related to heterotrophic-assimilatory and -dissimilatory pathways. Autotrophic Cyanobacterial lineages dominated the debris community at the beginning and end of summer, while heterotrophic Bacteroidota- and Proteobacteria-related phyla increased during the peak melt period. Predictive functional analyses based on taxonomy show a shift from predominantly phototrophy-related functions to heterotrophic assimilatory pathways as the melt-season progressed. This shift from autotrophic to heterotrophic communities within cryoconite holes can affect carbon drawdown and nutrient liberation from the glacier surface during the summer. In addition, the flushing out and export of cryoconite hole communities to the fjord could influence the biogeochemical dynamics of the fjord ecosystem.

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Extensive Genomic Rearrangement of Catalase-Less Cyanobloom-Forming Microcystis aeruginosa in Freshwater Ecosystems
Minkyung Kim, Jaejoon Jung, Wonjae Kim, Yerim Park, Che Ok Jeon, Woojun Park
Journal of Microbiology.2024; 62(11): 933. CrossRef

Reviews

Biological and Chemical Approaches for Controlling Harmful Microcystis Blooms: Wonjae Kim, Yerim Park, Jaejoon Jung, Che Ok Jeon, Masanori Toyofuku, Jiyoung Lee, Woojun Park; J. Microbiol. 2024;62(3):249-260. Published online April 8, 2024; DOI: https://doi.org/10.1007/s12275-024-00115-2

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Abstract PDF

The proliferation of harmful cyanobacterial blooms dominated by Microcystis aeruginosa has become an increasingly serious problem in freshwater ecosystems due to climate change and eutrophication. Microcystis-blooms in freshwater generate compounds with unpleasant odors, reduce the levels of dissolved O₂, and excrete microcystins into aquatic ecosystems, potentially harming various organisms, including humans. Various chemical and biological approaches have thus been developed to mitigate the impact of the blooms, though issues such as secondary pollution and high economic costs have not been adequately addressed. Red clays and H₂O₂ are conventional treatment methods that have been employed worldwide for the mitigation of the blooms, while novel approaches, such as the use of plant or microbial metabolites and antagonistic bacteria, have also recently been proposed. Many of these methods rely on the generation of reactive oxygen species, the inhibition of photosynthesis, and/or the disruption of cellular membranes as their mechanisms of action, which may also negatively impact other freshwater microbiota. Nevertheless, the underlying molecular mechanisms of anticyanobacterial chemicals and antagonistic bacteria remain unclear. This review thus discusses both conventional and innovative approaches for the management of M. aeruginosa in freshwater bodies.

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Strong inhibitory effects of Desmodesmus sp. on Microcystis blooms: Potential as a biological control agent in aquaculture
Bo Yang, Yuhua Li, Zihan Wang, Zhiguang Yue, Junqi Wen, Xueqin Zhao, Hu Zhang, Xianfeng Wang, Xiufen Wang, Man Zhang
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Isolation of a Novel Streptomyces sp. TH05 with Potent Cyanocidal Effects on Microcystis aeruginosa
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Public goods-mediated bacterial interplay in aquatic ecosystems
Yerim Park, Wonjae Kim, Jihye Bae, Woojun Park
Water Research.2025; 287: 124310. CrossRef
Molecular mechanisms underlying the bloom-forming cyanobacterium Microcystis defence against predation by flagellates
Yan Chen, Xiao Zhang, Xinyang Bai, Yonglan Xu, Hangzhou Xu, Li Li
Journal of Water Process Engineering.2025; 77: 108611. CrossRef
Utilizing allelopathy from the invasive plant Solidago canadensis to control Microcystis aeruginosa blooms: An integrated metabolomic and bioassay approach
Miao Wu, Huiyuan Liu, Jiaxin Shen, Zhaohui Xie, Siyuan Yang, Jiahui Guo, Yijiang Liu, Huiting Lian, Dingli Wang
Journal of Hazardous Materials.2025; 499: 140043. CrossRef
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Yihao Zhang, Jiaxuan Li, Yu Zhou, Xu Zhang, Xianhua Liu
Sensors.2024; 24(13): 4350. CrossRef
Alleviation of H2O2 toxicity by extracellular catalases in the phycosphere of Microcystis aeruginosa
Yerim Park, Wonjae Kim, Yeji Cha, Minkyung Kim, Woojun Park
Harmful Algae.2024; 137: 102680. CrossRef
Extensive Genomic Rearrangement of Catalase-Less Cyanobloom-Forming Microcystis aeruginosa in Freshwater Ecosystems
Minkyung Kim, Jaejoon Jung, Wonjae Kim, Yerim Park, Che Ok Jeon, Woojun Park
Journal of Microbiology.2024; 62(11): 933. CrossRef
Laboratory-Simulated Inhibitory Effects of the Floating-Bed Plants on Microcystis aeruginosa and Their Microbial Communities’ Responses to Microcystins
Shuwen Zhang, Yuanpu Sha, Yuanyuan Tang, Longjie Li, Feihu Wang, Jing Dong, Xuejun Li, Yunni Gao, Xiaofei Gao, Huatao Yuan, Jingxiao Zhang
Microorganisms.2024; 12(10): 2035. CrossRef
Host-Associated Microbiome
Woo Jun Sul
Journal of Microbiology.2024; 62(3): 135. CrossRef

Coordinated regulation of interferon and inflammasome signaling pathways by SARS-CoV-2 proteins: Na-Eun Kim , Yoon-Jae Song; J. Microbiol. 2022;60(3):300-307. Published online January 28, 2022; DOI: https://doi.org/10.1007/s12275-022-1502-8

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Abstract PDF

Type I and III interferons (IFNs) and the nucleotide-binding domain (NBD) leucine-rich repeat (LRR)-containing receptor (NLR) family pyrin domain containing 3 (NLRP3) inflammasome play pivotal roles in the pathogenesis of SARS-CoV-2. While optimal IFN and inflammasome responses are essential for limiting SARS-CoV-2 infection, aberrant activation of these innate immune responses is associated with COVID-19 pathogenesis. In this review, we focus our discussion on recent findings on SARS-CoV-2-induced type I and III IFNs and NLRP3 inflammasome responses and the viral proteins regulating these mechanisms.

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E. A. Krieger, O. V. Samodova, O. A. Svitich, R. V. Samoilikov, E. A. Meremianina, L. V. Ivanova, N. A. Bebyakova, E. N. Ilina, A. V. Pavlenko, Yu. I. Esin, A. L. Arkhipova, S. N. Kovalchuk, A. V. Kudryavtsev
Russian Journal of Infection and Immunity.2024; 13(6): 1027. CrossRef
SARS-CoV-2 ORF8 as a Modulator of Cytokine Induction: Evidence and Search for Molecular Mechanisms
Marília Inês Móvio, Giovana Waner Carneiro de Almeida, Isabella das Graças Lopes Martines, Gilmara Barros de Lima, Sergio Daishi Sasaki, Alexandre Hiroaki Kihara, Emma Poole, Michael Nevels, Maria Cristina Carlan da Silva
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The Potential of Purinergic Signaling to Thwart Viruses Including SARS-CoV-2
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Journal Articles

Light affects picocyanobacterial grazing and growth response of the mixotrophic flagellate Poterioochromonas malhamensis: Thomas Weisse , Michael Moser; J. Microbiol. 2020;58(4):268-278. Published online January 28, 2020; DOI: https://doi.org/10.1007/s12275-020-9567-8

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We measured the grazing and growth response of the mixotrophic chrysomonad flagellate Poterioochromonas malhamensis on four closely related picocyanobacterial strains isolated from subalpine lakes in central Europe. The picocyanobacteria represented different pigment types (phycoerythrin- rich, PE, and phycocyanin-rich, PC) and phylogenetic clusters. The grazing experiments were conducted with laboratory cultures acclimated to 10 μmol photon/m2/sec (low light, LL) and 100 μmol photon/m2/sec (moderate light, ML), either in the dark or at four different irradiances ranging from low (6 μmol photon/m2/sec) to high (1,500 μmol photon/m2/ sec) light intensity. Poterioochromonas malhamensis preferred the larger, green PC-rich picocyanobacteria to the smaller, red PE-rich picocyanobacterial, and heterotrophic bacteria. The feeding and growth rates of P. malhamensis were sensitive to the actual light conditions during the experiments; the flagellate performed relatively better in the dark and at LL conditions than at high light intensity. In summary, our
results
found strain-specific ingestion and growth rates of the flagellate; an effect of the preculturing conditions, and, unexpectedly, a direct adverse effect of high light levels. We conclude that this flagellate may avoid exposure to high surface light intensities commonly encountered in temperate lakes during the summer.

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A systematic review of the predatory contaminant Poterioochromonas in microalgal culture
Mingyang Ma, Chaojun Wei, Wenjie Huang, Yue He, Yingchun Gong, Qiang Hu
Journal of Applied Phycology.2023; 35(3): 1103. CrossRef
Transcriptional profile reveals the physiological responses to prey availability in the mixotrophic chrysophyte Poterioochromonas malhamensis
Mingyang Ma, Wentao Yang, Hong Chen, Wanwan Ke, Yingchun Gong, Qiang Hu
Frontiers in Microbiology.2023;[Epub] CrossRef
Microbial consortia in an ice‐covered high‐altitude lake impacted by additions of dissolved organic carbon and nutrients
Flavia Dory, Laurent Cavalli, Evelyne Franquet, Magalie Claeys‐Bruno, Benjamin Misson, Thierry Tatoni, Céline Bertrand
Freshwater Biology.2021; 66(8): 1648. CrossRef
Picoplankton feeding by the ciliate Vorticella similis in comparison to other peritrichs emphasizes their significance in the water purification process
Thomas Weisse, Jitka Jezberova, Michael Moser
Ecological Indicators.2021; 121: 106992. CrossRef

Highly diverse endophytes in roots of Cycas bifida (Cycadaceae), an ancient but endangered gymnosperm: Ying Zheng , Tzen-Yuh Chiang , Chao-Li Huang , Xun Gong; J. Microbiol. 2018;56(5):337-345. Published online May 2, 2018; DOI: https://doi.org/10.1007/s12275-018-7438-3

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Abstract PDF

As an ancient seed plant, cycads are one of the few gymnosperms that develop a root symbiosis with cyanobacteria, which has allowed cycads to cope with harsh geologic and climatic conditions during the evolutionary process. However, the endophytic microbes in cycad roots remain poorly identified. In this study, using next-generation sequencing techniques, we investigated the microbial diversity and composition of both the coralloid and regular roots of Cycas bifida (Dyer) K.D. Hill. Highly diverse endophytic communities were observed in both the coralloid and regular roots. Of the associated bacteria, the top five families were the Nostocaceae, Sinobacteraceae, Bradyrhizobiaceae, Bacillaceae, and Hyphomicrobiaceae. The Nectriaceae, Trichocomaceae, and Incertae sedis were the predominant fungal families in all root samples. A significant difference in the endophytic bacterial community was detected between coralloid roots and regular roots, but no difference was observed between the fungal communities in the two root types. Cyanobacteria were more dominant in coralloid roots than in regular roots. The divergence of cycad root structures and the modified physiological processes may have contributed to the abundance of cyanobionts in coralloid roots. Consequently, the colonization of cyanobacteria inhibits the assemblage of other endophytes. Our results contribute to an understanding of the species diversity and composition of the cycad-endophyte microbiome and provide an abbreviated list of potential ecological roles of the core microbes present.

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Chunping Xie, Meng Li, C. Y. Jim, Ruonan Chen
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Chemical ecology of symbioses in cycads, an ancient plant lineage
Shayla Salzman, Edder D. Bustos‐Díaz, Melissa R. L. Whitaker, Adriel M. Sierra, Angélica Cibrián‐Jaramillo, Francisco Barona‐Gómez, Juan Carlos Villarreal Aguilar
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Cyanobacteria of moss symbioses from White Sea coast: ultrastructural characteristics and taxonomic diversity
E. S. Lobakova, A. A. Zaytseva, K. A. Shibzukhova, S. G. Vasilieva, G. B. Butaeva, O. A. Gorelova
Symbiosis.2025;[Epub] CrossRef
Dictyophora indusiata and Bacillus aryabhattai improve sugarcane yield by endogenously associating with the root and regulating flavonoid metabolism
Mingzheng Duan, Xiang Li, Xiaojian Wu, Shengfeng Long, Hairong Huang, Yijie Li, Qi-Huai Liu, Guanghu Zhu, Bin Feng, Sunqian Qin, Changning Li, Hai Yang, Jie Qin, Zhendong Chen, Zeping Wang
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Phylometagenomics of cycad coralloid roots reveals shared symbiotic signals
Edder D. Bustos-Diaz, Arely Cruz-Perez, Diego Garfias-Gallegos, Paul M. D'Agostino, Michelle M. Gehringer, Angelica Cibrian-Jaramillo, Francisco Barona-Gomez
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Karina Gutiérrez-García, Edder D Bustos-Díaz, José Antonio Corona-Gómez, Hilda E Ramos-Aboites, Nelly Sélem-Mojica, Pablo Cruz-Morales, Miguel A Pérez-Farrera, Francisco Barona-Gómez, Angélica Cibrián-Jaramillo, Tal Dagan
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PLOS ONE.2019; 14(2): e0211271. CrossRef

Dominant genera of cyanobacteria in Lake Taihu and their relationships with environmental factors: Lijun Feng , Shiyou Liu , Wenxian Wu , Jiawen Ma , Pei Li , Hailing Xu , Na Li , Yaoyu Feng; J. Microbiol. 2016;54(7):468-476. Published online June 28, 2016; DOI: https://doi.org/10.1007/s12275-016-6037-4

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Abstract PDF

Cyanobacterial blooms in freshwaters have become one of the most widespread of environmental problems and threaten water resources worldwide. Previous studies on cyanobacteria in Lake Taihu often collected samples from one site (like Meiliang Bay or Zhushan Bay) and focused on the variation in patterns or abundance of Microcystis during the blooming season. However, the distribution of cyanobacteria in Lake Taihu shows differing pattern in various seasons. In this study, water samples were collected monthly for one year at five sites in Lake Taihu with different trophic status and a physicochemical analysis and denaturing gradient gel electrophoresis (DGGE) were conducted. DGGE fingerprint analysis showed that Microcystis (7/35 bands) and Synechococcus (12/35 bands) were the two most dominant genera present during the study period at all five sites. Cyanobium (3/35 bands) was the third most common genus which has seldom been previously reported in Lake Taihu. Redundancy analysis (RDA) indicated that the cyanobacterial community structure was significantly correlated with NO3 --N, CODMn, and NH4 +-N in the winter and spring, whereas it was correlated with water temperature in the summer and autumn. Limiting the nutrient input (especially of N and C loading) in Lake Taihu would be a key factor in controlling the growth of different genera of cyanobacteria.

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Research Support, Non-U.S. Gov'ts

Directed analysis of cyanobacterial membrane phosphoproteome using stained phosphoproteins and titanium-enriched phosphopeptides§: Dong-Gi Lee , Joseph Kwon , Chi-Yong Eom , Young-Moon Kang , Seong Woon Roh , Kyung-Bok Lee , Jong-Soon Choi; J. Microbiol. 2015;53(4):279-287. Published online April 8, 2015; DOI: https://doi.org/10.1007/s12275-015-5021-8

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Gel-free shotgun phosphoproteomics of unicellular cyanobacterium Synechocystis sp. PCC 6803 has not been reported up to now. The purpose of this study is to develop directed membrane phosphoproteomic method in Synechocystis sp. Total Synechocystis membrane proteins were separated by sodium dodecyl sulfate-polyacrylamide gel electrophoresis and phosphoprotein-stained gel bands were selectively subjected to in-gel trypsin digestion. The phosphorylation sites of the resulting peptides were determined by assigning the neutral loss of [M-H3PO4] to Ser, Thr, and Tyr residues using nano-liquid chromatography 7 Tesla Fourier transform mass spectrometry. As an initial application, 111 proteins and 33 phosphoproteins were identified containing 11 integral membrane proteins. Identified four unknown phosphoproteins with transmembrane helices were suggested to be involved in membrane migration or transporters based on BLASTP search annotations. The overall distribution of hydrophobic amino acids in pTyr was lower in frequency than that of pSer or pThr. Positively charged amino acids were abundantly revealed in the surrounding amino acids centered on pTyr. A directed shotgun membrane phosphoproteomic strategy provided insight into understanding the fundamental regulatory processes underlying Ser, Thr, and Tyr phosphorylation in multi-layered membranous cyanobacteria.

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NOTE] Effects of Light Intensity on Components and Topographical Structures of Extracellular Polysaccharides from the Cyanobacteria Nostoc sp.: Hongmei Ge , Ling Xia , Xuping Zhou , Delu Zhang , Chunxiang Hu; J. Microbiol. 2014;52(2):179-183. Published online February 1, 2014; DOI: https://doi.org/10.1007/s12275-014-2720-5

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A study on the effects of light intensity (40 and 80 μE/m2/sec) on the components and topographical structures of extracellular polysaccharides (EPS) was carried out in cyanobacteria Nostoc sp.. EPS yield increased with light intensity. However, light intensity did not significantly affect the EPS fractions and monosaccharide composition. Higher light intensity generally resulted in higher protein content of EPS in similar fractions. The topographical structure of EPS, investigated by atomic force microscopy, appeared as spherical lumps, chains and networks. The long chains were observed at higher light intensity. Thus, light intensity affected the yield and nature of EPS.

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Diversity of Cyanobacterial Species and Phylotypes in Biofilms from the Littoral Zone of Lake Baikal: Ekaterina G. Sorokovikova , Olga I. Belykh , Anna S. Gladkikh , Oleg V. Kotsar , Irina V. Tikhonova , Oleg A. Timoshkin , Valentina V. Parfenova; J. Microbiol. 2013;51(6):757-765. Published online December 19, 2013; DOI: https://doi.org/10.1007/s12275-013-3240-4

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The majority of naturally occurring biofilms contain numerous microorganisms that have not yet been cultured. Additionally, there is little information available regarding the genetic structure and species diversity of these communities. Therefore, we characterised the species diversity, structure and metagenome of biofilms grown on stones and steel plates in the littoral zone of Lake Baikal (East Siberia, Russia) by applying three different approaches. First, light microscopy enabled identification of the species diversity of biofilm-forming cyanobacteria on different substrates with the dominance of Rivularia rufescens, Tolypothrix limbata, Chamaesiphon fuscus, Сh. subglobosus, and Heteroleibleinia pusilla. Additionally, scanning electron microscopy was used to show the spatial structure of biofilms. Finally, sequence analysis of 30,660 16S rRNA clones indicated a high diversity within the biofilm communities, with the majority of the microbes being closely related to Cyanobacteria (8–46% sequences), Proteobacteria (14–43%), and Bacteroidetes (10– 41%). Rivularia sp., Pseudanabaena sp., and Chamaesiphon spp. were the dominant cyanobacterial phylotypes.

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Review

MINIREVIEW] Toxin-producing Cyanobacteria in Freshwater: A Review of the Problems, Impact on Drinking Water Safety, and Efforts for Protecting Public Health: Melissa Y. Cheung , Song Liang , Jiyoung Lee; J. Microbiol. 2013;51(1):1-10. Published online March 2, 2013; DOI: https://doi.org/10.1007/s12275-013-2549-3

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Cyanobacteria have adapted to survive in a variety of environments and have been found globally. Toxin-producing cyanobacterial harmful algal blooms (CHABs) have been increasing in frequency worldwide and pose a threat to drinking and recreational water. In this study, the prevalence, impact of CHABs and mitigation efforts were reviewed, focusing on the Lake Erie region and Ohio’s inland lakes that have been impacted heavily as an example so that the findings can be transferrable to other parts of the world that face the similar problems due to the CHABs in their freshwater environments. This paper provides a basic introduction to CHABs and their toxins as well as an overview of public health implications including exposure routes, health effects, and drinking water issues, algal bloom advisory practices in Ohio, toxin measurements results in Ohio public water supplies, and mitigation efforts.

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Water Research.2025; 283: 123683. CrossRef
Investigation into Paralytic Shellfish Toxins and Microcystins in Seabirds from Portugal
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Toxins.2025; 17(3): 135. CrossRef
Field-scale artificial floating islands reduces cyanotoxin from residential raw sewage treatment basin
Zhaozhe Chen, Jiyoung Lee, Molly Mills, Abigail Volk, Ozeas S. Costa
Ecological Engineering.2025; 212: 107543. CrossRef
Single and combined toxicity of copper and cadmium on Microcystis aeruginosa: effects on growth, oxidative stress and gene expression
Qing Cao, Bensheng You, Haibo Xu, Weijing Liu, Shuzhan Ma
Environmental Earth Sciences.2025;[Epub] CrossRef
Disproportionate Economic and Regulatory Challenges of Harmful Algal Blooms in Vulnerable Communities: A Multidisciplinary Analysis
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Journal of Water Resources Planning and Management.2025;[Epub] CrossRef
Dominant Dolichospermum and microcystin production in Detroit Lake (Oregon, USA)
Youchul Jeon, Ian Struewing, Kale Clauson, Nathan Reetz, Ned Fairchild, Lacey Goeres-Priest, Theo W. Dreher, Rochelle Labiosa, Kurt D. Carpenter, Barry H. Rosen, Eric N. Villegas, Jingrang Lu
Harmful Algae.2025; 142: 102802. CrossRef
A review on remote-sensing-based harmful cyanobacterial bloom monitoring services
Nasim Janatian, Urmas Raudsepp, Parya Broomandi, Kate Fickas, Kalle Olli, Timo Heimovaara, Aarne Mannik, Rivo Uiboupin, Nima Pahlevan
Remote Sensing Applications: Society and Environment.2025; 37: 101488. CrossRef
Key drivers of microcystin-producing cyanobacteria in South Korean eutrophic waters determined with data-driven models
Jayun Kim, Jiyoung Lee, Jason W. Marion, Joonhong Park
Journal of Environmental Management.2025; 392: 126616. CrossRef
Bacteriophages carry auxiliary metabolic genes related to energy, sulfur and phosphorus metabolism during a harmful algal bloom in a freshwater lake
Bishav Bhattarai, Ananda Shankar Bhattacharjee, Felipe H. Coutinho, Hanyan Li, Sreeni Chadalavada, Ramesh Goel
Chemosphere.2025; 370: 143819. CrossRef
Monitoring cyanobacteria temporal dynamics in a hypereutrophic lake using remote sensing: From multispectral to hyperspectral
Samantha L. Sharp, Alicia Cortés, Alexander L. Forrest, Carl J. Legleiter, Liane S. Guild, Yufang Jin, S. Geoffrey Schladow
Remote Sensing Applications: Society and Environment.2025; 39: 101704. CrossRef
Potential Linkage Between Zebra Mussel Establishment, Cyanobacterial Community Composition, and Microcystin Levels in United States Lakes
Feng Zhang, Jayun Kim, Ozeas S. Costa, Song Liang, Jiyoung Lee
Toxins.2025; 17(9): 447. CrossRef
Profiling domestic water bacteriome within the rainwater harvesting-dependent community of Carriacou Island, Grenada in the Southern Caribbean
Akilah T. M. Stewart, Adrian Cashman, John Agard, Dave Chadee, Adesh Ramsubhag, Guillaume Wright
PLOS Water.2025; 4(8): e0000380. CrossRef
Unraveling the mysteries of the plastisphere: a comprehensive analysis of its composition, toxicity, and ecological impact
Malika Moncer, Asma Hamza, Lamia Trabelsi
Journal of Sedimentary Environments.2025; 10(2): 303. CrossRef
Report of the Scientific Committee of the Spanish Agency for Food Safety and Nutrition (AESAN) on the effects of climate change on the risk of transmission of foodborne pathogens
Antonio Valero Díaz, Rosa María Capita González, Baltasar Mayo Pérez, Azucena del Carmen Mora Gutiérrez, María Dolores Rodrigo Aliaga, Gloria Sánchez Moragas, Paula Arrabal Durán
Food Risk Assess Europe.2025;[Epub] CrossRef
A novel artificial intelligence–powered cell counting tool coupled with digital microscopy for rapid field‐assessment of harmful cyanobacterial blooms
Igor Mrdjen, Zacharias J. Smith, Abby M. Webster, Christopher C. Nack, Bryan Arndt, Danara Dormaeva, Gregory L. Boyer, N. Roxanna Razavi, Stephen B. Shaw
Limnology and Oceanography: Methods.2025;[Epub] CrossRef
Mitigating harmful cyanobacterial blooms in drinking water reservoirs through in-situ sediment resuspension
Jiao Fang, Yande Li, Ming Su, Tengxin Cao, Xufeng Sun, Yufan Ai, Jinyi Qin, Jianwei Yu, Min Yang
Water Research.2024; 267: 122509. CrossRef
Monitoring network optimization and impact of fish farming upon water quality in the Três Marias Hydroelectric Reservoir, Brazil
Maria Clara V M Starling, Cristiano Christofaro, Luiz Eduardo Macedo-Reis, Phillippe Maillard, Camila C Amorim
Environmental Science and Pollution Research.2024; 31(9): 13455. CrossRef
Food Webs and Feedbacks: The Untold Ecological Relevance of Antimicrobial Resistance as Seen in Harmful Algal Blooms
Aabir Banerji, Nichole E. Brinkman, Benjamin Davis, Alison Franklin, Michael Jahne, Scott P. Keely
Microorganisms.2024; 12(11): 2121. CrossRef
Reliable assessment and prediction of moderate preoxidation of sodium hypochlorite for algae-laden water treatment
Zhiwei Zhou, Tianjie Sun, Xing Li, Jiawei Ren, Zedong Lu, Yuankun Liu, Kai Li, Fangshu Qu
Water Research.2024; 266: 122398. CrossRef
A rapid and efficient method using electroporation for releasing intracellular microcystin toxins from cultured and naturally occurring cyanobacterial cells in lake water
Yuehan Ai, Paul Bertani, Hao Yang, Seungjun Lee, Wu Lu, Jiyoung Lee
Marine Pollution Bulletin.2024; 198: 115890. CrossRef
Cyanobacterial Cyclic Peptides Can Disrupt Cytoskeleton Organization in Human Astrocytes—A Contribution to the Understanding of the Systemic Toxicity of Cyanotoxins
Anja Bubik, Robert Frangež, Monika C. Žužek, Ion Gutiérrez-Aguirre, Tamara T. Lah, Bojan Sedmak
Toxins.2024; 16(9): 374. CrossRef
Toward a Brighter Future: Enhanced Sustainable Methods for Preventing Algal Blooms and Improving Water Quality
Su-Ok Hwang, In-Hwan Cho, Ha-Kyung Kim, Eun-A Hwang, Byung-Hun Han, Baik-Ho Kim
Hydrobiology.2024; 3(2): 100. CrossRef
Snapshot of cyanobacterial toxins in Pakistani freshwater bodies
Uzma Batool, Nicolas Tromas, Dana F. Simon, Sébastien Sauvé, B. Jesse Shapiro, Mehboob Ahmed
Environmental Science and Pollution Research.2024; 31(16): 24648. CrossRef
Assessment of the Applicability of Compact Aerating Reactors for the Improvement of Water Quality in a Small Water Body Functioning in an Agricultural Catchment
Stanisław Chmiel, Marta Ziółek, Magdalena Kończak, Mariusz Pliżga, Beata Zielińska, Grzegorz Maliszewski, Mirosław Biruk, Sylwia Duda-Saternus
Sustainability.2024; 16(13): 5629. CrossRef
Dynamic microbiome and mobile resistome are revealed in river biofilms from a multi-use watershed through long-read sequencing
Molly Mills, Thomas Wittum, Jiyoung Lee
Frontiers in Environmental Science.2024;[Epub] CrossRef
Disinfection Byproducts and Their Precursors in Drinking Water Sources: Origins, Influencing Factors, and Environmental Insights
Rong Xiao, Yang Deng, Zuxin Xu, Wenhai Chu
Engineering.2024; 36: 36. CrossRef
A novel index reveals disconnects between recreational harmful algal bloom exposure risks and responses among U.S. states
Walter K. Dodds, Sophia M. Bonjour, Molly Fisher, Laura J. Krueger, Peter J. Pfaff, Md. Abu Raihan, Olivia Rode
JAWRA Journal of the American Water Resources Association.2024; 60(2): 273. CrossRef
Harmful Cyanobacterial Blooms: Going beyond the “Green” to Monitor and Predict HCBs
Daniela R. de Figueiredo
Hydrobiology.2024; 3(1): 11. CrossRef
Two duckweed species exhibit variable tolerance to microcystin-LR exposure across genotypic lineages
Lacey D. Rzodkiewicz, Martin M. Turcotte
Harmful Algae.2024; 131: 102548. CrossRef
Urban stormwater green infrastructure: Evaluating the public health service role of bioretention using microbial source tracking and bacterial community analyses
Emma Lancaster, Ryan Winston, Jay Martin, Jiyoung Lee
Water Research.2024; 259: 121818. CrossRef
Molecular Detection of Cylindrospermopsin-Producing Cyanobacteria in the Coasts of Hormozgan Province, Iran
Elmira Eivazpour Nami, Mohammad Hassan Shah Hoseini, Alireza Dehnad
Avicenna Journal of Clinical Microbiology and Infection.2024; 11(1): 17. CrossRef
Expert insights on managing harmful algal blooms
Sarah Goodrich, Katherine Nicole Canfield, Kate Mulvaney
Frontiers in Freshwater Science.2024;[Epub] CrossRef
Cyanobacteria Harmful Algae Blooms: Causes, Impacts, and Risk Management
Aboi Igwaran, Adeoye John Kayode, Karabelo M. Moloantoa, Zenzile P. Khetsha, John Onolame Unuofin
Water, Air, & Soil Pollution.2024;[Epub] CrossRef
Tracing the fate of microcystins from irrigation water to food chains: Studies with Fragaria vulgaris and Meriones shawi
Mohammed Haida, Fatima El khalloufi, Lahcen Tamegart, Richard Mugani, Yasser Essadki, El Mahdi Redouane, Joana Azevedo, Mário Jorge Araújo, Alexandre Campos, Vitor Vasconcelos, Halima Gamrani, Brahim Oudra
Toxicon.2023; 236: 107345. CrossRef
Microcystin-leucine-arginine affects brain gene expression programs and behaviors of offspring through paternal epigenetic information
Jiayi Xu, Weiyun Zhang, Shengzheng Zhong, Xinxin Xie, Huimin Che, Weirong Si, Xun Tuo, Dexiang Xu, Sujuan Zhao
Science of The Total Environment.2023; 857: 159032. CrossRef
Application of solid phase adsorption toxin tracking technology (SPATT) for monitoring microcystins in farm dams in Levubu farming area, South Africa
G.K. Pindihama, W.M. Gitari, S. Mukangaya
Physics and Chemistry of the Earth, Parts A/B/C.2023; 132: 103500. CrossRef
Prediction of algal bloom using a combination of sparse modeling and a machine learning algorithm: Automatic relevance determination and support vector machine
Yohei Miura, Hiroomi Imamoto, Yasuhiro Asada, Masaki Sagehashi, Michihiro Akiba, Osamu Nishimura, Daisuke Sano
Ecological Informatics.2023; 78: 102337. CrossRef
Water Quality and Toxic Cyanobacteria in Oligohaline Estuary Beaches During the Longest Mississippi River Basin Flood Event in 2019
Sibel Bargu, Brady Skaggs, Monique Boudreaux, Courtney N. Hammond, Callie Snow, Tiong Gim Aw, Richard Stumpf
Estuaries and Coasts.2023; 46(7): 1865. CrossRef
Harmful Algal Blooms: A Prolific Issue in Urban Stormwater Ponds
Amy E. Grogan, Catharina Alves-de-Souza, Lawrence B. Cahoon, Michael A. Mallin
Water.2023; 15(13): 2436. CrossRef
Oral Palatability and Owners’ Perception of the Effect of Increasing Amounts of Spirulina (Arthrospira platensis) in the Diet of a Cohort of Healthy Dogs and Cats
Davide Stefanutti, Gloria Tonin, Giada Morelli, Raffaella Margherita Zampieri, Nicoletta La Rocca, Rebecca Ricci
Animals.2023; 13(8): 1275. CrossRef
Short-Term Meteorological Conditions Explain Cyanobacterial Blooms in a Tropical Reservoir
Florencia Soledad Alvarez Dalinger, Verónica Laura Lozano, Claudia Nidia Borja, Liliana Beatriz Moraña, Salusso María Mónica
Water.2023; 15(2): 302. CrossRef
A rapid LC-MS/MS method for multi-class identification and quantification of cyanotoxins
Fernanda Rios Jacinavicius, Thaíssa Giovanna Valverde Campos, Larissa Souza Passos, Ernani Pinto, Vanessa Geraldes
Toxicon.2023; 234: 107282. CrossRef
Cyanotoxins in groundwater; occurrence, potential sources, health impacts and knowledge gap for public health
Mulalo I. Mutoti, Joshua N. Edokpayi, Ntwanano Mutileni, Olatunde S. Durowoju, Fhatuwani L. Munyai
Toxicon.2023; 226: 107077. CrossRef
Patterns and impacts of cyanobacteria in a deep, thermally stratified, oligotrophic lake
Anthony R. Prestigiacomo, Rebecca M. Gorney, James B. Hyde, Courtney Davis, Aimee Clinkhammer
AWWA Water Science.2023;[Epub] CrossRef
Beneath the surface: spatial and temporal trends in water quality and its impacts on algal community composition in the Albemarle Sound, North Carolina
Emma T. Brentjens, Anika R. Bratt
Aquatic Ecology.2023; 57(2): 243. CrossRef
Toxicity effects of disinfection byproduct chloroacetic acid to Microcystis aeruginosa: Cytotoxicity and mechanisms
Jing Ye, Jiawei Ni, Fuxiang Tian, Xiyan Ji, Meifang Hou, Yuanting Li, Lei Yang, Runxiang Wang, Wenwu Xu, Liang Meng
Journal of Environmental Sciences.2023; 129: 229. CrossRef
Facilitating the determination of microcystin toxins with bio-inspired sensors
Bingzhi Li, Qiusu Wang, Muhammad Sohail, Xing Zhang, Huan He, Lei Lin
Microchemical Journal.2023; 189: 108482. CrossRef
Host microbiome associated low intestinal acetate correlates with progressive NLRP3-dependent hepatic-immunotoxicity in early life microcystin-LR exposure
Madhura More, Somdatta Chatterjee, Punnag Saha, Dipro Bose, Ayushi Trivedi, Subhajit Roy, Saurabh Chatterjee
BMC Pharmacology and Toxicology.2023;[Epub] CrossRef
Microcystin Concentrations, Partitioning, and Structural Composition during Active Growth and Decline: A Laboratory Study
Emily F. Pierce, Astrid Schnetzer
Toxins.2023; 15(12): 684. CrossRef
Scenario-based land use modeling for nutrient management in the Skaneateles Lake Watershed
Robert A. Rioux, Aaron L. Strong
Environmental Challenges.2023; 12: 100739. CrossRef
Beyond cyanotoxins: increased Legionella, antibiotic resistance genes in western Lake Erie water and disinfection-byproducts in their finished water
Jiyoung Lee, Seungjun Lee, Chenlin Hu, Jason W. Marion
Frontiers in Microbiology.2023;[Epub] CrossRef
Harmful and beneficial properties of cyanotoxins: Two sides of the same coin
Annarita Ricciardelli, Antonino Pollio, Maria Costantini, Valerio Zupo
Biotechnology Advances.2023; 68: 108235. CrossRef
Cyanobacterial biomass prediction in a shallow lake using the time series SARIMAX models
Yan Guo, Xijun Lai, Min Gan
Ecological Informatics.2023; 78: 102292. CrossRef
Field application of biologically derived substances (BDSs: Naphthoquinone derivative) for eco-friendly mitigation of harmful cyanobacterial blooms
Jae-Hyoung Joo, Yoon-Ho Kang, Zhun Li, Sae-Hee Kim, Bum Soo Park, Myung-Soo Han
Journal of Applied Phycology.2023; 35(5): 2271. CrossRef
Freshwater Mussels, Ecosystem Services, and Clean Water Regulation in Minnesota: Formulating an Effective Conservation Strategy
Baishali Bakshi, R. William Bouchard, Robert Dietz, Daniel Hornbach, Philip Monson, Bernard Sietman, Dennis Wasley
Water.2023; 15(14): 2560. CrossRef
Evaluation of planktonic cyanobacteria in Peruvian freshwater lentic water bodies: prevalence and regulatory framework to aid policy making
Anthony Salazar-Torres, Danny Robles, Alonso Reyes, Mónica C. Santa-Maria, Patrick Venail
Environmental Monitoring and Assessment.2023;[Epub] CrossRef
Examination of Microcystin Adsorption by the Type of Plastic Materials Used during the Procedure of Microcystin Analysis
Chan Seo, Joo Won Lee, Won-Kyo Jung, Yoon-Mi Lee, Seungjun Lee, Sang Gil Lee
Toxins.2022; 14(9): 625. CrossRef
Immobilization of Microbes for Biodegradation of Microcystins: A Mini Review
Jiajia Zhang, Jia Wei, Isaac Yaw Massey, Tangjian Peng, Fei Yang
Toxins.2022; 14(8): 573. CrossRef
Harmful algal bloom-related 311 calls, Cape Coral, Florida 2018–2019
Christopher K. Uejio, Elaina Gonsoroski, Samendra P. Sherchan, Leslie Beitsch, E. W. Harville, C. Blackmore, K. Pan, Maureen Y. Lichtveld
Journal of Water and Health.2022; 20(3): 531. CrossRef
The success of the bloom-forming cyanobacteria Planktothrix: Genotypes variability supports variable responses to light and temperature stress
Sandra Kim Tiam, Katia Comte, Caroline Dalle, Marine Delagrange, Chakib Djediat, Bertrand Ducos, Charlotte Duval, Kathleen Feilke, Sahima Hamlaoui, Séverine Le Manach, Pierre Setif, Claude Yéprémian, Benjamin Marie, Diana Kirilovsky, Muriel Gugger, Cécile
Harmful Algae.2022; 117: 102285. CrossRef
High-resolution temporal detection of cyanobacterial blooms in a deep and oligotrophic lake by high-frequency buoy data
Manxue Zhang, Yunlin Zhang, Jianming Deng, Miao Liu, Yongqiang Zhou, Yibo Zhang, Kun Shi, Cuiling Jiang
Environmental Research.2022; 203: 111848. CrossRef
Multiple roles of bamboo as a regulator of cyanobacterial bloom in aquatic systems
Aimin Hao, Mengyao Su, Sohei Kobayashi, Min Zhao, Yasushi Iseri
Scientific Reports.2022;[Epub] CrossRef
Relationship between freshwater harmful algal blooms and neurodegenerative disease incidence rates in South Korea
Seungjun Lee, Boseung Choi, Sung Jae Kim, Jinnam Kim, Dayun Kang, Jiyoung Lee
Environmental Health.2022;[Epub] CrossRef
Occurrence of cyanobacteria in water used for food production: A review
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Physics and Chemistry of the Earth, Parts A/B/C.2022; 125: 103101. CrossRef
Detection and Occurrence of Microcystins and Nodularins in Lake Manatee and Lake Washington-Two Floridian Drinking Water Systems
Rajesh Melaram, Brandon Lopez-Dueñas
Frontiers in Water.2022;[Epub] CrossRef
Evaluation of the Role of Probiotics As a New Strategy to Eliminate Microbial Toxins: a Review
Abdolamir Ghadaksaz, Somayeh Mousavi Nodoushan, Hamid Sedighian, Elham Behzadi, Abbas Ali Imani Fooladi
Probiotics and Antimicrobial Proteins.2022; 14(2): 224. CrossRef
Octocrylene: From Sunscreens to the Degradation Pathway during Chlorination Processes: Formation of Byproducts and Their Ecotoxicity Assessment
Antonio Medici, Lorenzo Saviano, Antonietta Siciliano, Giovanni Libralato, Marco Guida, Lucio Previtera, Giovanni Di Fabio, Armando Zarrelli
Molecules.2022; 27(16): 5286. CrossRef
Health impact assessment of air pollution in an area of the largest coal mine in Brazil
Laiz Coutelle Honscha, Julia Oliveira Penteado, Valério de Sá Gama, Alícia da Silva Bonifácio, Priscila Aikawa, Marina dos Santos, Paulo Roberto Martins Baisch, Ana Luíza Muccillo-Baisch, Flavio Manoel Rodrigues da Silva Júnior
Environmental Science and Pollution Research.2022; 29(10): 14176. CrossRef
Comparative genomic analysis of five freshwater cyanophages and reference-guided metagenomic data mining
Kang Du, Feng Yang, Jun-Tao Zhang, Rong-Cheng Yu, Ziqing Deng, Wei-Fang Li, Yuxing Chen, Qiong Li, Cong-Zhao Zhou
Microbiome.2022;[Epub] CrossRef
Prediction of Microcystis Occurrences and Analysis Using Machine Learning in High-Dimension, Low-Sample-Size and Imbalanced Water Quality Data
Masaya Mori, Roberto Gonzalez Flores, Yoshihiro Suzuki, Kei Nukazawa, Toru Hiraoka, Hirofumi Nonaka
Harmful Algae.2022; 117: 102273. CrossRef
Near‐term phytoplankton forecasts reveal the effects of model time step and forecast horizon on predictability
Whitney M. Woelmer, R. Quinn Thomas, Mary E. Lofton, Ryan P. McClure, Heather L. Wander, Cayelan C. Carey
Ecological Applications.2022;[Epub] CrossRef
Identifying the influence of zebra and quagga mussels on sedimentary phosphorus dynamics in western Lake Erie
Fasong Yuan, Robert A. Krebs, Amanda N. Wagner
Hydrobiologia.2021; 848(8): 1897. CrossRef
Effects of harmful algal blooms on regulated disinfection byproducts: Findings from five utility case studies
Katherine Foreman, Deborah Vacs Renwick, Morgan McCabe, Adam Cadwallader, Hannah Holsinger, Charlene Kormondy, Ryan Albert
AWWA Water Science.2021;[Epub] CrossRef
Rapid detection and quantification of microcystins in surface water by an impedimetric immunosensor
Abraham O. Ogungbile, Idan Ashur, Itzik Icin, Orr H. Shapiro, Sefi Vernick
Sensors and Actuators B: Chemical.2021; 348: 130687. CrossRef
Florida’s Harmful Algal Bloom (HAB) Problem: Escalating Risks to Human, Environmental and Economic Health With Climate Change
Cynthia Ann Heil, Amanda Lorraine Muni-Morgan
Frontiers in Ecology and Evolution.2021;[Epub] CrossRef
Killing effect of deinoxanthins on cyanobloom-forming Microcystis aeruginosa: Eco-friendly production and specific activity of deinoxanthins
Wonjae Kim, Minkyung Kim, Minyoung Hong, Woojun Park
Environmental Research.2021; 200: 111455. CrossRef
Design and Preliminary Testing of an In-Field Passive Treatment System for Removing Phosphorus from Surface Water
George Carleton, Jessica Glowczewski, Teresa Cutright
Applied Sciences.2021; 11(9): 3743. CrossRef
A machine learning approach for early warning of cyanobacterial bloom outbreaks in a freshwater reservoir
Yongeun Park, Han Kyu Lee, Jae-Ki Shin, Kangmin Chon, SungHwan Kim, Kyung Hwa Cho, Jin Hwi Kim, Sang-Soo Baek
Journal of Environmental Management.2021; 288: 112415. CrossRef
Harmful Cyanobacterial Blooms (HCBs): innovative green bioremediation process based on anti-cyanobacteria bioactive natural products
Soukaina El Amrani Zerrifi, Richard Mugani, El Mahdi Redouane, Fatima El Khalloufi, Alexandre Campos, Vitor Vasconcelos, Brahim Oudra
Archives of Microbiology.2021; 203(1): 31. CrossRef
Uncovering Research Trends of Phycobiliproteins Using Bibliometric Approach
Hui Teng Tan, Fatimah Md. Yusoff, Yam Sim Khaw, Siti Aqlima Ahmad, Noor Azmi Shaharuddin
Plants.2021; 10(11): 2358. CrossRef
Controlling Eutrophication via Surface Aerators in Irregular-Shaped Urban Ponds
Aimin Hao, Sohei Kobayashi, Dong Xia, Qi Mi, Ning Yan, Mengyao Su, Aishou Lin, Min Zhao, Yasushi Iseri
Water.2021; 13(23): 3360. CrossRef
Acute health effects associated with satellite-determined cyanobacterial blooms in a drinking water source in Massachusetts
Jianyong Wu, Elizabeth D. Hilborn, Blake A. Schaeffer, Erin Urquhart, Megan M. Coffer, Cynthia J. Lin, Andrey I. Egorov
Environmental Health.2021;[Epub] CrossRef
Acclimation of an algal consortium to sequester nutrients from anaerobic digestate
Qichen Wang, Jessa Cherones, Brendan Higgins
Bioresource Technology.2021; 342: 125921. CrossRef
Complete sequence and structure of the genome of the harmful algal bloom-forming cyanobacterium Planktothrix agardhii NIES-204T and detailed analysis of secondary metabolite gene clusters
Yohei Shimura, Takatomo Fujisawa, Yuu Hirose, Naomi Misawa, Yu Kanesaki, Yasukazu Nakamura, Masanobu Kawachi
Harmful Algae.2021; 101: 101942. CrossRef
Inhibition of endoplasmic reticulum stress-related autophagy attenuates MCLR-induced apoptosis in zebrafish testis and mouse TM4 cells
Zaiwei Wu, Fang Wang, Liwen Hu, Jianrong Zhang, Daojun Chen, Sujuan Zhao
Ecotoxicology and Environmental Safety.2021; 221: 112438. CrossRef
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M. Sagova-Mareckova, J. Boenigk, A. Bouchez, K. Cermakova, T. Chonova, T. Cordier, U. Eisendle, T. Elersek, S. Fazi, T. Fleituch, L. Frühe, M. Gajdosova, N. Graupner, A. Haegerbaeumer, A.-M. Kelly, J. Kopecky, F. Leese, P. Nõges, S. Orlic, K. Panksep, J.
Water Research.2021; 191: 116767. CrossRef
Recent trends in the detection of freshwater cyanotoxins with a critical note on their occurrence in Asia
Prabir Kumar Kulabhusan, Katrina Campbell
Trends in Environmental Analytical Chemistry.2021; 32: e00150. CrossRef
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Molly C. Mills, Morgan V. Evans, Seungjun Lee, Thomas Knobloch, Christopher Weghorst, Jiyoung Lee
Ecotoxicology and Environmental Safety.2021; 215: 112126. CrossRef
Quantifying Scales of Spatial Variability of Cyanobacteria in a Large, Eutrophic Lake Using Multiplatform Remote Sensing Tools
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Frontiers in Environmental Science.2021;[Epub] CrossRef
Climate Change and Emerging Food Safety Issues: A Review
Ramona A. Duchenne-Moutien, Hudaa Neetoo
Journal of Food Protection.2021; 84(11): 1884. CrossRef
Assessing Impacts of Changes in External Nutrient Loadings on a Temperate Chinese Drinking Water Reservoir
Qingchuan Chou, Anders Nielsen, Tobias K. Andersen, Fenjuan Hu, Weiyu Chen, Xiaolin Zhang, Te Cao, Leyi Ni, Erik Jeppesen, Dennis Trolle
Frontiers in Environmental Science.2021;[Epub] CrossRef
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Chao Jiang, Wei Ding, Weitang Zhu, Liang Zhu, Xiangyang Xu
Environmental Science and Pollution Research.2021; 28(36): 50204. CrossRef
The Application of Potassium Permanganate to Treat Cyanobacteria-Laden Water: a Review
Kayla Piezer, Lei Li, Youchul Jeon, Anusha Kadudula, Youngwoo Seo
Process Safety and Environmental Protection.2021; 148: 400. CrossRef
LC and NMR Studies for Identification and Characterization of Degradation Byproducts of Olmesartan Acid, Elucidation of Their Degradation Pathway and Ecotoxicity Assessment
Giovanni Luongo, Antonietta Siciliano, Giovanni Libralato, Sara Serafini, Lorenzo Saviano, Lucio Previtera, Giovanni Di Fabio, Armando Zarrelli
Molecules.2021; 26(6): 1769. CrossRef
Quantifying the Human Health Benefits of Using Satellite Information to Detect Cyanobacterial Harmful Algal Blooms and Manage Recreational Advisories in U.S. Lakes
Signe Stroming, Molly Robertson, Bethany Mabee, Yusuke Kuwayama, Blake Schaeffer
GeoHealth.2020;[Epub] CrossRef
Synthesis of new tetronamides displaying inhibitory activity against bloom‐forming cyanobacteria
Jaime AM Acosta, Milandip Karak, Luiz CA Barbosa, John Boukouvalas, Andrea Straforini, Giuseppe Forlani
Pest Management Science.2020; 76(2): 779. CrossRef
Analysis of Covalently Bound Microcystins in Sediments and Clam Tissue in the Sacramento–San Joaquin River Delta, California, USA
Melissa Bolotaolo, Tomofumi Kurobe, Birgit Puschner, Bruce G Hammock, Matt J. Hengel, Sarah Lesmeister, Swee J. Teh
Toxins.2020; 12(3): 178. CrossRef
Concise Synthesis of (+)‐[13C4]‐Anatoxin‐a by Dynamic Kinetic Resolution of a Cyclic Iminium Ion
Jacob J. Lacharity, Artur K. Mailyan, Karen Y. Chen, Armen Zakarian
Angewandte Chemie.2020; 132(28): 11460. CrossRef
Enhanced resistance of co-existing toxigenic and non-toxigenic Microcystis aeruginosa to pyrogallol compared with monostrains
Yunni Gao, Jing Lu, Philip T. Orr, Ann Chuang, Hannah M. Franklin, Michele A. Burford
Toxicon.2020; 176: 47. CrossRef
Drinking water treatment residuals from cyanobacteria bloom-affected areas: Investigation of potential impact on agricultural land application
Yuehan Ai, Seungjun Lee, Jiyoung Lee
Science of The Total Environment.2020; 706: 135756. CrossRef
Relationship between cyanobacterial bloom impacted drinking water sources and hepatocellular carcinoma incidence rates
Tyler Gorham, Elisabeth Dowling Root, Yuanyuan Jia, C.K. Shum, Jiyoung Lee
Harmful Algae.2020; 95: 101801. CrossRef
Microcystis Bloom in an Urban Lake after River Water Diversion—A Case Study
Xiaoyan Chen, Dong Bai, Chunlei Song, Yiyong Zhou, Xiuyun Cao
Water.2020; 12(6): 1811. CrossRef
Cyanobacterial blooms modify food web structure and interactions in western Lake Erie
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Research Support, Non-U.S. Gov'ts

Translocation of Green Fluorescent Protein to Cyanobacterial Periplasm Using Ice Nucleation Protein: Wipa Chungjatupornchai , Sirirat Fa-aroonsawat; J. Microbiol. 2009;47(2):187-192. Published online May 2, 2009; DOI: https://doi.org/10.1007/s12275-008-0188-x

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Abstract PDF

The translocation of proteins to cyanobacterial cell envelope is made complex by the presence of a highly differentiated membrane system. To investigate the protein translocation in cyanobacterium Synechococcus PCC 7942 using the truncated ice nucleation protein (InpNC) from Pseudomonas syringae KCTC 1832, the green fluorescent protein (GFP) was fused in frame to the carboxyl-terminus of InpNC. The fluorescence of GFP was found almost entirely as a halo in the outer regions of cells which appeared to correspond to the periplasm as demonstrated by confocal laser scanning microscopy, however, GFP was not displayed on the outermost cell surface. Western blotting analysis revealed that InpNC-GFP fusion protein was partially degraded. The N-terminal domain of InpNC may be susceptible to protease attack; the remaining C-terminal domain conjugated with GFP lost the ability to direct translocation across outer membrane and to act as a surface display motif. The fluorescence intensity of cells with periplasmic GFP was approximately 6-fold lower than that of cells with cytoplasmic GFP. The successful translocation of the active GFP to the periplasm may provide a potential means to study the property of cyanobacterial periplasmic substances in response to environmental changes in a non-invasive manner.

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Cyanobacterial Hybrid Kinase Sll0043 Regulates Phototaxis by Suppressing Pilin and Twitching Motility Protein: Bong-Jeong Shin , Jeehyun Oh , Sungsoo Kang , Young-Ho Chung , Young Mok Park , Young Hwan Kim , Seungil Kim , Jong Bhak , Jong-Soon Choi; J. Microbiol. 2008;46(3):300-308. Published online July 5, 2008; DOI: https://doi.org/10.1007/s12275-007-0212-6

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Abstract PDF: The unicellular cyanobacterium Synechocystis sp. PCC 6803 glides toward a light source through the interplay of positive phototaxis genes and proteins. In genetic analysis, the complete disruption of the hybrid sensory kinase sll0043 produced negative phototaxis. Furthermore, Sll0043 was found to be a hub protein by in silico prediction of protein-protein interaction, in which Sll0043 was predominantly linked to seven two-component proteins with high confidence. To understand the regulation and networking of positive phototaxis proteins, the proteomic profile of the sll0043 mutant was compared to that of wild-type. In the sll0043 mutant, 18 spots corresponding to 15 unique proteins were altered by 1.3 to 59 fold; the spots were identified by 2-DE/MALDI-MS analysis. Down-regulated proteins in the sll0043 null-mutant included chaperonins, superoxide dismutase, and phycocyanin β-subunit. In contrast, nine proteins involved in photosynthesis, translation, regulatory function, and other functions were up-regulated. In particular, a twitching motility protein (PilT1) was induced over 2-fold in sll0043 mutant. Moreover, semiquantitative and quantitative RT-PCR analysis revealed that pilin (pilA1), pili motor (pilT1), and pili switch gene (pilT2) were significantly increased in sll0043 mutant. These results suggest that the hybrid kinase Sll0043 regulates positive phototaxis by suppressing the expression of pili biosynthesis and regulatory genes and through the interplay with positive phototaxis/motility two-component proteins.

Alternative Alert System for Cyanobacterial Bloom, Using Phycocyanin as a Level Determinant: Chi-Yong Ahn , Seung-Hyun Joung , Sook-Kyoung Yoon , Hee-Mock Oh; J. Microbiol. 2007;45(2):98-104.; DOI: https://doi.org/2527 [pii]

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Abstract PDF: Chlorophyll a concentration and cyanobacterial cell density are regularly employed as dual criteria for determinations of the alert level for cyanobacterial bloom. However, chlorophyll a is not confined only to the cyanobacteria, but is found universally in eukaryotic algae. Furthermore, the determination of cyanobacterial cell counts is notoriously difficult, and is unduly dependent on individual variation and trained skill. A cyanobacteria-specific parameter other than the cell count or chlorophyll a concentration is, accordingly, required in order to improve the present cyanobacterial bloom alert system. Phycocyanin has been shown to exhibit a strong correlation with a variety of bloom-related factors. This may allow for the current alert system criteria to be replaced by a three-stage alert system based on phycocyanin concentrations of 0.1, 30, and 700 μg/L. This would also be advantageous in that it would become far more simple to conduct measurements without the need for expensive equipment, thereby enabling the monitoring of entire lakes more precisely and frequently. Thus, an alert system with superior predictive ability based on highthroughput phycocyanin measurements appears feasible.

Factors Indicating Culture Status During Cultivation of Spirulina (Arthrospira) platensis: Choong-Jae Kim , Yun-Ho Jung , Hee-Mock Oh; J. Microbiol. 2007;45(2):122-127.; DOI: https://doi.org/2524 [pii]

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Abstract PDF: Factors indicating culture status of two Spirulina platensis strains were monitored in a batch mode cultivation for 36 days. Changing mode in all factors showed a common turning point, indicating shift of cell or culture status. Mean biomass productivity was highly sustained until day 22, chlorophyll a concentration peaked on day 22, pH value was >12 on day 22, coil number was abruptly shortened on day 22, and floating activity was sustained at greater than 79% after day 22, indicating that day 22 is a criterion reflecting phase-transfer in cell physiology in a batch culture system. Many of these changes may have been caused by increased pH, suggesting that pH control is essential for mass production of S. platensis. Fluctuations in floating activity were likely induced by the number of cellular gas vacuoles. Consequently, coil number per trichome and floating activity of S. platensis could readily act as simple indicators for determination of culture status or harvesting time of cells.

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