Bradyrhizobiaceae | |
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Scientific classification | |
Kingdom: | Bacteria |
Phylum: | Proteobacteria |
Class: | Alphaproteobacteria |
Order: | Rhizobiales |
Family: |
Bradyrhizobiaceae Garrity et al. 2006 |
Genera | |
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.