Garrity et al. 2006
The Bradyrhizobiaceae are a family of bacteria, with ten genera. They include plant-associated bacteria such as Bradyrhizobium, a genus of rhizobia associated with some legumes. It also contains animal-associated bacteria such as Afipia felis, formerly thought to cause cat scratch disease. Others are free-living, such as Rhodopseudomonas, a purple bacterium found in marine water and soils. The strain Rhodopseudomonas palustris DX-1 can generate an electric current with no hydrogen production, a trait being explored in the development of the microbial fuel cell. The genus Afipia has also been found in the atmosphere, where it uses methylsulfonylmethane as a carbon source.
- De Meyer, S. E.; Coorevits, A.; Willems, A. (2012). "Tardiphaga robiniae gen. nov., sp. nov., a new genus in the family Bradyrhizobiaceae isolated from Robinia pseudoacacia in Flanders (Belgium)". Systematic and Applied Microbiology. 35 (4): 205. doi:10.1016/j.syapm.2012.02.002. PMID 22444281.
- "List of Prokaryotic Names with Standing in Nomenclature". Retrieved 20 July 2010.
- Defeng Xing; Yi Zuo; Shaoan Cheng; John M. Regan & Bruce E. Logan (2008). "Electricity Generation by Rhodopseudomonas palustris DX-1". Environ. Sci. Technol. 42 (11): 4146–51. doi:10.1021/es800312v. PMID 18589979.
- Natasha DeLeon-Rodriguez, others (full list) (December 19, 2012). "Microbiome of the upper troposphere: Species composition and prevalence, effects of tropical storms, and atmospheric implications" (PDF). Proceedings of the National Academy of Sciences. 110: 2575–2580. doi:10.1073/pnas.1212089110. Retrieved March 1, 2014.
Based on the taxonomical classification of the SSU rRNA gene sequences recovered, Afipia sp. (Alphaproteobacteria) comprised over 50% of the total communities sampled off the California coast and during the transit flights. (…) This group [Afipia] is commonly found in aquatic environments and is known to use dimethyl sulfone (DMSO2) as a sole carbon source. DMSO2 represents an intermediate of the oxidation of dimethyl sulfide (DMS), which is commonly found in the marine atmosphere(page 3 and 5 of 6, quotes slightly edited).
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