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- 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
- 57 View
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- 181 Scopus
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Abstract
- 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.
Research Support, Non-U.S. Gov'ts
- Effects of Phosphate Addition on Biofilm Bacterial Communities and Water Quality in Annular Reactors Equipped with Stainless Steel and Ductile Cast Iron Pipes
- Hyun-Jung Jang , Young-June Choi , Hee-Myong Ro , Jong-Ok Ka
- J. Microbiol. 2012;50(1):17-28. Published online February 27, 2012
- DOI: https://doi.org/10.1007/s12275-012-1040-x
- 53 View
- 0 Download
- 34 Scopus
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Abstract
- The impact of orthophosphate addition on biofilm formation and water quality was studied in corrosion-resistant stainless steel (STS) pipe and corrosion-susceptible ductile cast iron (DCI) pipe using cultivation and culture-independent approaches. Sample coupons of DCI pipe and STS pipe were installed in annular reactors, which were operated for 9 months under hydraulic conditions similar to a domestic plumbing system. Addition of 5 mg/L of phosphate to the plumbing systems, under low residual chlorine conditions, promoted a more significant growth of biofilm and led to a greater rate reduction of disinfection by-products in DCI pipe than in STS pipe. While the level of THMs (trihalomethanes) increased under conditions of low biofilm concentration, the levels of HAAs (halo acetic acids) and CH (chloral hydrate) decreased in all cases in proportion to the amount of biofilm. It was also observed that chloroform, the main species of THM, was not readily decomposed biologically and decomposition was not proportional to the biofilm concentration; however, it was easily biodegraded after the addition of phosphate. Analysis of the 16S rDNA sequences of 102 biofilm isolates revealed that Proteobacteria (50%) was the most frequently detected phylum, followed by Firmicutes (10%) and Actinobacteria (2%), with 37% of the bacteria unclassified. Bradyrhizobium was the dominant genus on corroded DCI pipe, while Sphingomonas was predominant on non-corroded STS pipe. Methylobacterium and Afipia were detected only in the reactor without added phosphate. PCR-DGGE analysis showed that the diversity of species in biofilm tended to increase when phosphate was added regardless of the pipe material, indicating that phosphate addition upset the biological stability in the plumbing systems.
- Methylobacterium dankookense sp. nov., Isolated from Drinking Water
- Si-Won Lee , Hyun-Woo Oh , Kang-Hyun Lee , Tae-Young Ahn
- J. Microbiol. 2009;47(6):716-720. Published online February 4, 2010
- DOI: https://doi.org/10.1007/s12275-009-0126-6
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- 23 Crossref
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Abstract
- A pink-pigmented bacterium, designated SW08-7T was isolated from the drinking water of a water purifier. Cells were Gram-negative, rod-shaped, strictly aerobic, and non-spore-forming. It grew optimally at 25°C, pH 6~7. Phylogenetic analysis based on 16S rRNA gene sequence showed that strain SW08-7T belongs to the genus Methylobacterium. The highest 16S rRNA gene sequence similarities were found to Methylobacterium mesophilicum JCM 2829T (96.9%), Methylobacterium brachiatum B0021T (96.9%), Methylobacterium phyllosphaerae CBMB27T (96.6%), Methylobacterium radiotolerans JCM 2831T (96.6%), and Methylobacterium hispanicum GP34T (96.5%). DNA-DNA hybridization experiment revealed low-level (28.5%) of DNA- DNA relatedness between strain SW08-7T and Methylobacterium hispanicum. The genomic DNA G+C content was 68.9 mol% and the major isoprenoid quinone was Q-10. The major cellular fatty acid of strain SW08-7T was C18:1 ω7c (79.8±2.1%). Results of phylogenetic, phenotypic, and biochemical analyses revealed that strain SW08-7T could be classified as representing a novel species of genus Methylobacterium, for which the name Methylobacterium dankookense sp. nov. is proposed. The type strain is SW08-7T (=KCTC 22512T =DSM 22415T).
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Citations
Citations to this article as recorded by
- Assessment of Bacteriological Quality of Vended Water in Jerry Cans for Domestic Use in Zaria, Kaduna State, Nigeria
Nura S., Shehu, A.U., Muhammad, A.A., Sharif U., Tijjani, R.B.
UMYU Journal of Microbiology Research (UJMR).2022; 7(1): 8. CrossRef - Methylobacterium symbioticum sp. nov., a new species isolated from spores of Glomus iranicum var. tenuihypharum
Jose Antonio Pascual, Margarita Ros, Jesus Martínez, Francisco Carmona, Antonio Bernabé, Rocío Torres, Teresa Lucena, Rosa Aznar, David R. Arahal, Felix Fernández
Current Microbiology.2020; 77(9): 2031. CrossRef - Microbial Diversity in Deep-Subsurface Hot Brines of Northwest Poland: from Community Structure to Isolate Characteristics
Agnieszka Kalwasińska, Arkadiusz Krawiec, Edyta Deja-Sikora, Marcin Gołębiewski, Przemysław Kosobucki, Maria Swiontek Brzezinska, Maciej Walczak, Haruyuki Atomi
Applied and Environmental Microbiology.2020;[Epub] CrossRef - Inhibition of Mycobacterium abscessus, M. chelonae, and M. fortuitum biofilms by Methylobacterium sp
Marta García-Coca, Graciela Rodríguez-Sevilla, Andrea Pérez-Domingo, John-Jairo Aguilera-Correa, Jaime Esteban, María-Carmen Muñoz-Egea
The Journal of Antibiotics.2020; 73(1): 40. CrossRef - Epidermidibacterium keratini gen. nov., sp. nov., a member of the family Sporichthyaceae, isolated from keratin epidermis
Dong-Geol Lee, Martha E. Trujillo, Seunghyun Kang, Jin-Ju Nam, Yeon-Jun Kim
International Journal of Systematic and Evolutionary Microbiology.2018; 68(3): 745. CrossRef - Review of the genus Methylobacterium and closely related organisms: a proposal that some Methylobacterium species be reclassified into a new genus, Methylorubrum gen. nov.
Peter N. Green, Julie K. Ardley
International Journal of Systematic and Evolutionary Microbiology.2018; 68(9): 2727. CrossRef - Characterization of bacteria in monitoring-well, leachate and surrounding groundwater near the animal carcass disposal sites using the gene cloning assay
Heejung Kim, Siwon Lee, In-Cheol Choi
Journal of the Geological Society of Korea.2016; 52(2): 155. CrossRef - Analysis of Bacterial Diversity in Water from the Han River Water Source Protection Area via a Pyrosequencing Assay
Heejung Kim, Dugin Kaown, Changsoo Kim, Siwon Lee
Korean Journal of Environmental Health Sciences.2016; 42(4): 274. CrossRef - Novel and efficient screening of PQQ high-yielding strains and subsequent cultivation optimization
Zhenjun Si, Jianzhong Zhu, Wenguang Wang, Lei Huang, Peilian Wei, Jin Cai, Zhinan Xu
Applied Microbiology and Biotechnology.2016; 100(24): 10321. CrossRef - Characterization of Culturable Bacteria in the Atmospheric Environment in Incheon, Korea
Siwon Lee, Su Jeong Park, Ji Hye Kim, Byung-Dae Min, Hyen-Mi Chung, Sangjung Park
Korean Journal of Environmental Health Sciences.2016; 42(2): 126. CrossRef -
Emticicia sediminis sp. nov. isolated from sediment of a shallow stream
Si-Eun Park, Siwon Lee, Haneul Kim, Tae-Young Ahn
International Journal of Systematic and Evolutionary Microbiology .2015; 65(Pt_8): 2496. CrossRef -
Jeotgalibaca dankookensis gen. nov., sp. nov., a member of the family Carnobacteriaceae, isolated from seujeot (Korean traditional food)
Dong-Geol Lee, Martha E. Trujillo, Heecheol Kang, Tae-Young Ahn
International Journal of Systematic and Evolutionary Microbiology .2014; 64(Pt_5): 1729. CrossRef -
Flavihumibacter cheonanensis sp. nov., isolated from sediment of a shallow stream
Wan-Hoe Kim, Siwon Lee, Tae-Young Ahn
International Journal of Systematic and Evolutionary Microbiology .2014; 64(Pt_9): 3235. CrossRef -
Methylobacterium
trifolii sp. nov. and
Methylobacterium
thuringiense sp. nov., methanol-ut
S. Wellner, N. Lodders, S. P. Glaeser, P. Kämpfer
International Journal of Systematic and Evolutionary Microbiology .2013; 63(Pt_7): 2690. CrossRef - Plant quarantine isolated cultivation system in Korea and results of recorded in 2005-2012
Siwon Lee, Jungan Park, O-Mi Lee, Yong-Gil Shin
Korean Journal of Agricultural Science.2013; 40(4): 281. CrossRef - Identification of Opportunistic Pathogenic Bacteria in Drinking Water Samples of Different Rural Health Centers and Their Clinical Impacts on Humans
Pavan Kumar Pindi, P. Raghuveer Yadav, A. Shiva Shanker
BioMed Research International.2013; 2013: 1. CrossRef - List of new names and new combinations previously effectively, but not validly, published
International Journal of Systematic and Evolutionary Microbiology .2013; 63(Pt_1): 1. CrossRef - Arenimonas aquaticum sp. nov., a member of the gammaproteobacterium, isolated from a freshwater reservoir
A. -Ram Kim, Siwon Lee, Kyudong Han, Tae-Young Ahn
The Journal of Microbiology.2012; 50(2): 354. CrossRef - Methylobacterium gnaphalii sp. nov., isolated from leaves of Gnaphalium spicatum
Akio Tani, Nurettin Sahin, Kazuhide Kimbara
International Journal of Systematic and Evolutionary Microbiology.2012; 62(Pt_11): 2602. CrossRef - Methylobacterium oxalidis sp. nov., isolated from leaves of Oxalis corniculata
Akio Tani, Nurettin Sahin, Kazuhide Kimbara
International Journal of Systematic and Evolutionary Microbiology.2012; 62(Pt_7): 1647. CrossRef - Flavobacterium koreense sp. nov., Flavobacterium chungnamense sp. nov., and Flavobacterium cheonanense sp. nov., isolated from a freshwater reservoir
Siwon Lee, Hang-Yeon Weon, Soo-Jin Kim, Tae-Young Ahn
The Journal of Microbiology.2011; 49(3): 387. CrossRef - Isolement de Methylobacterium podarium au cours d’une inflammation intraoculaire
E. Borsali, I. Rossignol, L. Batellier, P. Legrand, P. Goldschmidt, A. Le Bouter, K. Mokhtari, C. Chaumeil
Médecine et Maladies Infectieuses.2011; 41(12): 665. CrossRef -
Methylobacterium marchantiae sp. nov., a pink-pigmented, facultatively methylotrophic bacterium isolated from the thallus of a liverwort
S. Schauer, P. Kämpfer, S. Wellner, C. Spröer, U. Kutschera
International Journal of Systematic and Evolutionary Microbiology .2011; 61(4): 870. CrossRef
- Assessment of Bacteriological Quality of Vended Water in Jerry Cans for Domestic Use in Zaria, Kaduna State, Nigeria
- Molecular Characterization of Antibiotic Resistant Escherichia coli Strains Isolated from Tap and Spring Waters in a Coastal Region in Turkey
- Osman Birol Ozgumus , Elif Celik-Sevim , Sengul Alpay-Karaoglu , Cemal Sandalli , Ali Sevim
- J. Microbiol. 2007;45(5):379-387.
- DOI: https://doi.org/2600 [pii]
- 49 View
- 0 Download
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Abstract
- A hundred and seventeen antibiotic-resistant Escherichia coli strains were isolated from public tap and spring waters which were polluted by fecal coliforms. There were no significant differences between two water sources as to the coliform pollution level (p> 0.05). All E. coli isolates were detected to be resistant to one or more antibiotics tested. Nearly 42% of the isolates showed multiresistant phenotype. Three (2.5%) of these isolates contained class 1 integron. Sequencing analysis of variable regions of the class 1 integrons showed two gene cassette arrays, dfr1-aadA1 and dhfrA17-aadA5. Resistance to ampicillin, tetracycline or trimethoprim-sulfamethoxazole was transferable according to the results of conjugation experiments. The rate of tetracycline resistance was 15%. tet(A)-mediated tetracycline resistance was widespread among tetracycline-resistant E. coli isolates. Genotyping by BOX-polymerase chain reaction (BOX-PCR) showed that some of the strains were epidemiologically related. This is the first report on the prevalence and characterization of class 1 integron-containing E. coli isolates of environmental origin in Turkey.
- Development of a Virus Concentration Method and its Application for the Detection of Noroviruses in Drinking Water in China
- Junyi Liu , Qingping Wu , Xiaoxia Kou
- J. Microbiol. 2007;45(1):48-52.
- DOI: https://doi.org/2492 [pii]
- 50 View
- 0 Download
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Abstract
- A new procedure for the concentration of nonoviruses from water samples has been developed. This procedure (calcium flocculation-citrate dissolution method) uses the following steps: virus flocculation formed by treatment with 1 M CaCl2 and 1 M Na2HPO4, virus release by sodium citrate dissolution (0.3 M Na citrate, pH 3.5), and virus re-concentration by ultrafiltration. When reverse transcription (RT)-PCR was performed after the procedure, the overall detection sensitivity for seeded noroviruses in a one liter drinking water sample was as low as 1 RT-PCR unit, which is equal to a 10-6 dilution of the virus sample. This approach showed at least a 5-fold-higher sensitivity than the current method with its three steps of adsorption-elution-concentration. The newly developed procedure was used to test different brands of bottled drinking water from China for putative contamination with noroviruses. A total of 144 samples were analyzed; all of the samples were negative for norovirus specific nucleic acids.
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