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Elusimicrobium minutum is an ultramicrobacterium and first accepted member to be cultured of a major bacterial lineage previously known only as candidate phylum Termite Gut 1 (TG1), which has accordingly been renamed phylum Elusimicrobiota. It was isolated in the laboratory of Andreas Brune at the Max Planck Institute for Terrestrial Microbiology, from the scarab beetle. It is a mesophilic, obligately anaerobic ultramicrobacterium with a gram-negative cell envelope. Cells are typically rod shaped, but cultures are pleomorphic in all growth phases. The isolate grows heterotrophically on sugars and ferments D-galactose, D-glucose, D-fructose, D-glucosamine, and N-acetyl-D-glucosamine to acetate, ethanol, hydrogen, and alanine as major products but only if amino acids are present in the medium
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Mercury methylation is the process of forming methylmercury (MeHg). The methylation of mercury can occur abiotically or biotically. Biotically, the primary methylators of mercury are sulfate-reducing and iron-reducing bacteria. Three mechanisms have been proposed for the biotic methylation of mercury by sulfate-reducing bacteria. Mercury methylation can be problematic as methylmercury is toxic and can be bio-magnified through the food web.
References
- ↑ Jean, Euzeby. "Genus Desulfovibrio". List of Prokaryotic names with Standing in Nomenclature . Retrieved November 6, 2014.
- ↑ EJC Goldstein; DM Citron; VA Peraino; SA Cross (June 2003). "Desulfovibrio desulfricans Bacteremia and Review of Human Desulfovibrio Infections". J Clin Microbiol. 41 (6): 2752–2754. doi:10.1128/jcm.41.6.2752-2754.2003. PMC 156571 . PMID 12791922.
- ↑ CC Gilmour; DA Elias; AM Kucken; SD Brown; AV Palumbo; CW Schadt; JD Wall (June 2011). "Sulfate-Reducing Bacterium Desulfovibrio desulfuricans ND132 as a Model for Understanding Bacterial Mercury Methylation". Appl Environ Microbiol. 77 (12): 3938–3951. Bibcode:2011ApEnM..77.3938G. doi:10.1128/aem.02993-10. PMC 3131654 . PMID 21515733.
- ↑ Sánchez-Andrea, I., Guedes, I.A., Hornung, B. et al. The reductive glycine pathway allows autotrophic growth of Desulfovibrio desulfuricans. Nat Commun 11, 5090 (2020). https://doi.org/10.1038/s41467-020-18906-7
- ↑ "Home - Desulfovibrio desulfuricans G20". genome.jgi.doe.gov. Retrieved 2017-05-07.
- ↑ Rapp, Barbara J., and Judy D. Wall. "Genetic transfer in Desulfovibrio desulfuricans." Proceedings of the National Academy of Sciences 84.24 (1987): 9128-9130.
- ↑ GC Compeau; R Bartha (August 1985). "Sulfate-Reducing Bacteria: Principal Methylators of Mercury in Anoxic Estuarine Sediment". Appl Environ Microbiol. 50 (2): 498–502. Bibcode:1985ApEnM..50..498C. doi:10.1128/AEM.50.2.498-502.1985. PMC 238649 . PMID 16346866.