Journal of Microbiology

Journal Article

Competition/antagonism associations of biofilm formation among Staphylococcus epidermidis Agr groups I, II, and III: Sergio Martínez-García , César I. Ortiz-García , Marisa Cruz-Aguilar , Juan Carlos Zenteno , José Martin Murrieta-Coxca , Sonia Mayra Pérez-Tapia , Sandra Rodríguez-Martínez , Mario E. Cancino-Diaz , Juan C. Cancino-Diaz; J. Microbiol. 2019;57(2):143-153. Published online January 31, 2019; DOI: https://doi.org/10.1007/s12275-019-8322-5

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Staphylococci have quorum-sensing (QS) systems that enable cell-to-cell communication, as well as the regulation of numerous colonization and virulence factors. The accessory gene regulator (Agr) operon is one of the Staphylococcus genus QS systems. Three groups (I, II, and III) are present in Staphylococcus epidermidis Agr operon. To date, it is unknown whether Agr groups can interact symbiotically during biofilm development. This study analyzed a symbiotic association among Agr groups during biofilm formation in clinical and commensal isolates. Different combinations among Agr group isolates was used to study biofilm formation in vitro and in vivo (using a mouse catheter-infection model). The analysis of Agr groups were also performed from samples of human skin (head, armpits, and nostrils). Different predominant coexistence was found within biofilms, suggesting symbiosis type. In vitro, Agr I had a competition with Agr II and Agr III. Agr II had a competition with Agr III, and Agr II was an antagonist to Agr I and III when the three strains were combined. In vivo, Agr II had a competition to Agr I, but Agr I and II were antagonists to Agr III. The associations found in vitro and in vivo were also found in different sites of the skin. Besides, other associations were observed: Agr III antagonized Agr I and II, and Agr III competed with Agr I and Agr II. These results suggest that, in S. epidermidis, a symbiotic association of competition and antagonism occurs among different Agr groups during biofilm formation.

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Review

REVIEW] The Ruminococci: key symbionts of the gut ecosystem: Alex J. La Reau , Garret Suen; J. Microbiol. 2018;56(3):199-208. Published online February 28, 2018; DOI: https://doi.org/10.1007/s12275-018-8024-4

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Abstract

Mammalian gut microbial communities form intricate mutualisms with their hosts, which have profound implications on overall health. One group of important gut microbial mutualists are bacteria in the genus Ruminococcus, which serve to degrade and convert complex polysaccharides into a variety of nutrients for their hosts. Isolated decades ago from the bovine rumen, ruminococci have since been cultured from other ruminant and non-ruminant sources, and next-generation sequencing has further shown their distribution to be widespread in a diversity of animal hosts. While most ruminococci that have been studied are those capable of degrading cellulose, much less is known about non-cellulolytic, nonruminant- associated species, such as those found in humans. Furthermore, a mechanistic understanding of the role of Ruminococcus spp. in their respective hosts is still a work in progress. This review highlights the broad work done on species within the genus Ruminococcus with respect to their physiology, phylogenetic relatedness, and their potential impact on host health.

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Journal of Medical Microbiology .2023;[Epub] CrossRef
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Frontiers in Microbiology.2023;[Epub] CrossRef
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Frontiers in Molecular Medicine.2023;[Epub] CrossRef
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Experimental Gerontology.2023; 176: 112164. CrossRef
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Microbial Ecology.2023; 85(4): 1608. CrossRef
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Microbiology Spectrum.2023;[Epub] CrossRef
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Frontiers in Microbiology.2023;[Epub] CrossRef
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Frontiers in Veterinary Science.2023;[Epub] CrossRef
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Supportive Care in Cancer.2023;[Epub] CrossRef
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Microorganisms.2023; 11(8): 2092. CrossRef
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Antibiotics.2023; 12(2): 362. CrossRef
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Jordyn Clough, Sibylle Schwab, Katarina Mikac
Animals.2023; 13(22): 3583. CrossRef
Orally Administrated Lactiplantibacillus plantarum BGAN8-Derived EPS-AN8 Ameliorates Cd Hazards in Rats
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Animal Feed Science and Technology.2023; 299: 115628. CrossRef
Characterization of the Gut Microbiota in Urban Thai Individuals Reveals Enterotype-Specific Signature
Jiramaetha Sinsuebchuea, Prasobsook Paenkaew, Montree Wutthiin, Thatchawanon Nantanaranon, Kiattiyot Laeman, Weerayuth Kittichotirat, Songsak Wattanachaisaereekul, Sudarat Dulsawat, Montira Nopharatana, Namol Vorapreeda, Sakarindr Bhumiratana, Supapon Che
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Associations between the Gut Microbiome and Migraines in Children Aged 7-18 Years: An Analysis of the American Gut Project Cohort
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Invited review: Rumen modifiers in today's dairy rations
J.L. Firkins, K.E. Mitchell
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Exploration of the Gut Microbiome in Thai Patients with Major Depressive Disorder Shows a Specific Bacterial Profile with Depletion of the Ruminococcus Genus as a Putative Biomarker
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Microbiome.2023;[Epub] CrossRef
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Elise Slevin, Sachiko Koyama, Kelly Harrison, Ying Wan, James E. Klaunig, Chaodong Wu, Ashok K. Shetty, Fanyin Meng
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Jinbao Yin, Dingxin Li, Tianming Zheng, Bin Hu, Peifang Wang
Environmental Science & Technology.2023; 57(43): 16219. CrossRef
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Wiwat Chancharoenthana, Supitcha Kamolratanakul, Phatcharapon Yiengwattananon, Pornpimol Phuengmaung, Kanyarat Udompornpitak, Wilasinee Saisorn, Pratsanee Hiengrach, Peerapat Visitchanakun, Marcus J Schultz, Asada Leelahavanichkul
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Altered gut microbiota in older adults with mild cognitive impairment: a case-control study
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Frontiers in Aging Neuroscience.2023;[Epub] CrossRef
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Jiawei Zhang, Jiaxin Deng, Juan Li, Yuping Su, Jiancong Hu, Dezheng Lin, Mingli Su, Yongcheng Chen, Sen Liao, Xuhao Bai, Miwei Lv, Tian Xu, Qinghua Zhong, Xuefeng Guo
Frontiers in Immunology.2023;[Epub] CrossRef
Stall-Feeding of Sheep on Restricted Grazing: Effects on Performance and Serum Metabolites, Ruminal Fermentation, and Fecal Microbiota
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Causal Link between Gut Microbiota, Neurophysiological States, and Bone Diseases: A Comprehensive Mendelian Randomization Study
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Individual and combined effects of fluoride and arsenic on gut bacteria: a recent update
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The Nucleus.2023;[Epub] CrossRef
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Frontiers in Marine Science.2023;[Epub] CrossRef
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Microbiome.2023;[Epub] CrossRef
Gut Microbiome Transplants and Their Health Impacts across Species
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Causal effects of gut microbiome on autoimmune liver disease: a two-sample Mendelian randomization study
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BMC Medical Genomics.2023;[Epub] CrossRef
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Zinc Biofortified Cowpea (Vigna unguiculata L. Walp.) Soluble Extracts Modulate Assessed Cecal Bacterial Populations and Gut Morphology In Vivo (Gallus gallus)
Mariana Juste Contin Gomes, Hércia Stampini Duarte Martino, Nikolai Kolba, Jacquelyn Cheng, Nikita Agarwal, Maurisrael de Moura Rocha, Elad Tako
Frontiers in Bioscience-Landmark.2022;[Epub] CrossRef
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Survival Strategies and Metabolic Interactions between Ruminococcus gauvreauii and Ruminococcoides bili , Isolated from Human Bile
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Microbiology Spectrum.2022;[Epub] CrossRef
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Frontiers in Microbiology.2022;[Epub] CrossRef
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Pascal Drouin, Julien Tremblay, Érica Benjamim da Silva, Emmanuelle Apper
Journal of Applied Microbiology.2022; 133(4): 2331. CrossRef
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Antioxidants.2022; 11(5): 1020. CrossRef
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Sean T. Jones, Kejun Guo, Emily H. Cooper, Stephanie M. Dillon, Cheyret Wood, David H. Nguyen, Guannan Shen, Bradley S. Barrett, Daniel N. Frank, Miranda Kroehl, Edward N. Janoff, Katerina Kechris, Cara C. Wilson, Mario L. Santiago, Frank Kirchhoff
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H.F. Monteiro, A.L.J. Lelis, P. Fan, B. Calvo Agustinho, R.R. Lobo, J.A. Arce-Cordero, X. Dai, K.C. Jeong, A.P. Faciola
Journal of Dairy Science.2022; 105(3): 2242. CrossRef
Saccharomyces cerevisiae boulardiiCNCM I-1079 supplementation in finishing male pigs helps to cope with heat stress through feeding behaviour and gut microbiota modulation
Etienne Labussière, Caroline Achard, Serge Dubois, Sylvie Combes, Mathieu Castex, David Renaudeau
British Journal of Nutrition.2022; 127(3): 353. CrossRef
Specific Alterations of Gut Microbiota in Chinese Patients with Hypertension: A Systematic Review and Meta-Analysis
Yunlong Qin, Jin Zhao, Yuwei Wang, Ming Bai, Shiren Sun
Kidney and Blood Pressure Research.2022; 47(7): 433. CrossRef
2-Hydroxy-4-(Methylthio) Butanoic Acid Isopropyl Ester Supplementation Altered Ruminal and Cecal Bacterial Composition and Improved Growth Performance of Finishing Beef Cattle
Xiaoli Qin, Depeng Zhang, Xinjun Qiu, Kai Zhao, Siyu Zhang, Chunlan Liu, Lianqiang Lu, Yafang Cui, Changxiao Shi, Zhiming Chen, Rikang Hao, Yingqi Li, Shunran Yang, Lina Wang, Huili Wang, Binghai Cao, Huawei Su
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Heat Stress Affects Jejunal Immunity of Yellow-Feathered Broilers and Is Potentially Mediated by the Microbiome
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Frontiers in Physiology.2022;[Epub] CrossRef
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Xuhuiqun Zhang, Anqi Zhao, Amandeep K Sandhu, Indika Edirisinghe, Britt M Burton-Freeman
The Journal of Nutrition.2022; 152(6): 1438. CrossRef
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Yuhao Ma, Xue Yang, Guoying Hua, Xiaotian Deng, Tianlan Xia, Xinhai Li, Dengzhen Feng, Xuemei Deng
Frontiers in Microbiology.2022;[Epub] CrossRef
Spotlight on the Gut Microbiome in Menopause: Current Insights
Brandilyn Peters, Nanette Santoro, Robert Kaplan, Qibin Qi
International Journal of Women's Health.2022; Volume 14: 1059. CrossRef
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Ingestion of remediated lead-contaminated soils affects the fecal microbiome of mice
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Environmental Pollution.2022; 306: 119418. CrossRef
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Nutrients.2022; 14(9): 1774. CrossRef
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Gut Microbes.2022;[Epub] CrossRef
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Science of The Total Environment.2022; 827: 153877. CrossRef
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Shucheng Huang, Chaodong Zhang, Tingting Xu, Aftab Shaukat, Yanfeng He, Pan Chen, Luxi Lin, Ke Yue, Qinqin Cao, Xishuai Tong
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Gut metagenome profile of the Nunavik Inuit youth is distinct from industrial and non-industrial counterparts
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European Journal of Sport Science.2022; 22(8): 1222. CrossRef
Hypomagnetic Field Exposure Affecting Gut Microbiota, Reactive Oxygen Species Levels, and Colonic Cell Proliferation in Mice
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Animal Bioscience.2022; 35(11): 1808. CrossRef
Paeonia lactiflora Pallas extract alleviates antibiotics and DNCB-induced atopic dermatitis symptoms by suppressing inflammation and changing the gut microbiota composition in mice
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Influence of free and immobilized chitosan on a defined human gut microbial ecosystem
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Shuqi Zhou, Melissa Martin, Christie Powell, Kathryn S. Sutton, Bradley George, Thomas Olson, Konstantinos T. Konstantinidis, Deborah W. Bruner, Jinbing Bai
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Applied Microbiology and Biotechnology.2022; 106(3): 1325. CrossRef
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Consistent Alterations of Human Fecal Microbes After Transplantation into Germ-Free Mice
Yanze Li, Wenming Cao, Na L Gao, Xing-Ming Zhao, Wei-Hua Chen
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Meconium Microbiota Composition and Association with Birth Delivery Mode
Ana K. Rocha-Viggiano, Saray Aranda-Romo, Mariana Salgado-Bustamante, Cesaré Ovando-Vázquez, Jian Wu
Advanced Gut & Microbiome Research.2022; 2022: 1. CrossRef
Characterization of presence and activity of microRNAs in the rumen of cattle hints at possible host-microbiota cross-talk mechanism
Sara Ricci, Renée M. Petri, Cátia Pacífico, Ezequias Castillo-Lopez, Raul Rivera-Chacon, Arife Sener-Aydemir, Nicole Reisinger, Qendrim Zebeli, Susanne Kreuzer-Redmer
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Commensal Intestinal Protozoa—Underestimated Members of the Gut Microbial Community
Magdalena Dubik, Bartosz Pilecki, Jesper Bonnet Moeller
Biology.2022; 11(12): 1742. CrossRef
Fecal microbiome of horses transitioning between warm-season and cool-season grass pasture within integrated rotational grazing systems
Jennifer R. Weinert-Nelson, Amy S. Biddle, Carey A. Williams
Animal Microbiome.2022;[Epub] CrossRef
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Zheng Chen, ZiYing Wang, Dan Li, Beiwei Zhu, Yongjun Xia, Guangqiang Wang, Lianzhong Ai, Chunhong Zhang, Chuan Wang
Frontiers in Microbiology.2022;[Epub] CrossRef
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Journal Article

DNA Adenine Methylation of sams1 Gene in Symbiont-Bearing Amoeba proteus: Taeck J. Jeon; J. Microbiol. 2008;46(5):564-570. Published online October 31, 2008; DOI: https://doi.org/10.1007/s12275-008-0129-8

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Abstract: The expression of amoeba sams genes is switched from sams1 to sams2 when amoebae are infected with Legionella jeonii. To elucidate the mechanism for the inactivation of host sams1 gene by endosymbiotic bacteria, methylation states of the sams1 gene of D and xD amoebae was compared in this study. The sams1 gene of amoebae was methylated at an internal adenine residue of GATC site in symbiont-bearing xD amoebae but not in symbiont-free D amoebae, suggesting that the modification might have caused the inactivation of sams1 in xD amoebae. The sams1 gene of xD amoebae was inactivated at the transcriptional level. Analysis of DNA showed that adenine residues in L. jeonii sams were also methylated, implying that L. jeonii bacteria belong to a Dam methylase-positive strain. In addition, both SAM and Met appeared to act as negative regulators for the expression of sams1 whereas the expression of sams2 was not affected in amoebae.

Editorial

EDITORIAL] Gut microbiomes and their metabolites shape human and animal health: Woojun Park; J. Microbiol. 2018;56(3):151-153.; DOI: https://doi.org/10.1007/s12275-018-0577-8

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Abstract

The host genetic background, complex surrounding environments, and gut microbiome are very closely linked to human and animal health and disease. Although significant correlations between gut microbiota and human and animal health have been revealed, the specific roles of each gut bacterium in shaping human and animal health and disease remain unclear. However, recent omics-based studies using experimental animals and surveys of gut microbiota from unhealthy humans have provided insights into the relationships among microbial community, their metabolites, and human and animal health. This editorial introduces six review papers that provide new discoveries of disease-associated microbiomes and suggest possible microbiome-based therapeutic approaches to human disease.

Citations

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Characterization of promotor sequences for strong expression of groEx IN Escherichia coli.: Lee, Jung E. , Lim, Ssang T. , Aha, Tae I.; J. Microbiol. 1996;34(1):15-22.

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Abstract: The cloned X-bacterial gene (groEx) which is analogous to groE of E. Coli strongly expressed in E. coli when grown at the temperature 27℃ or higher without having to add any inducers. By S1-nuclease mapping, primer extension analysis and site directed mutagenesis, we found 4 promoters in the gene. Among them two promoters located at 5'-extended region of the gene are homologous to the promoters found in groE family of heat-shock genes ; they are , σ^32 factor-dependent P1 promotor and σ^70 factor-dependet P2 promoter. The other two promoters found within the coding region of groESx were P3, 5'-TTGGCG-(18 bases)-AATACT-3' and P4, 5'-TTGGCA-(19 bases)-TAAGT which overlapped within 49 bases. These unique intragenic σ^70-dependent promoters are the first to be cloned and characterized in groE analogous heat-shock genes so far. These P3 and P4 promoters appeared to be responsible for the strong expression of GroElx in X-bacteria in vivo.

Microbial Symbiosis in Marine Sponges: Yoo Kyung Lee , Jung-Hyun Lee , Hong Kum Lee; J. Microbiol. 2001;39(4):254-264.

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Abstract: Sponges are host organisms for various symbiotic microorganisms such as archaea, bacteria, cyanobacteria and microalgae. Sponges are also sources of a wide variety of useful natural products like cytotoxins, antifouling agents, antibiotics, and anti-inflammatory and antiviral compounds. Symbiotic microorganisms in sponges can be sources of various natural products, because metabolites previously ascribed to sponges have recently been demonstrated to be biosynthesized by symbionts. If a symbiotic microorganism from which some natural products are derived can be cultured, the microorganism could be used in a mass production of the bioactive compounds. We summarize recent research on isolation and cultivation of sponge-symbiotic microorganisms and the symbiotic relationship.

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