Afipia is a genus of bacteria from the family of Nitrobacteraceae.
Bradyrhizobium is a genus of Gram-negative soil bacteria, many of which fix nitrogen. Nitrogen fixation is an important part of the nitrogen cycle. Plants cannot use atmospheric nitrogen (N2); they must use nitrogen compounds such as nitrates.
The Nitrobacteraceae are a family of gram-negative, aerobic bacteria. 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.
Bradyrhizobium liaoningense is a species of legume-root nodulating, microsymbiotic nitrogen-fixing bacterium. It was first isolated from Glycine soja and Glycine max root nodules in China. Its type strain is strain 2281.
Bradyrhizobium canariense is a species of legume-root nodulating, endosymbiont nitrogen-fixing bacterium. It is acid-tolerant and nodulates endemic genistoid legumes from the Canary Islands. The type strain is BTA-1T.
Bradyrhizobium yuanmingense is a species of legume-root nodulating, endosymbiont nitrogen-fixing bacterium, associated with Lespedeza and Vigna species. Its type strain is CCBAU 10071(T).
Bradyrhizobium iriomotense is a species of legume-root nodulating, endosymbiont nitrogen-fixing bacterium, first isolated from Entada koshunensis. The type strain is EK05T.
Bradyrhizobium betae is a species of legume-root nodulating, microsymbiotic nitrogen-fixing bacterium first isolated from the roots of Beta vulgaris, hence its name. It is slow-growing an endophytic. The type strain is PL7HG1T.
Bradyrhizobium cytisi is a bacterium from the genus of Bradyrhizobium.
Bradyrhizobium daqingense is a bacterium from the genus Bradyrhizobium.
Bradyrhizobium denitrificans is a bacterium from the genus Bradyrhizobium which was isolated from surface lake water in Germany.
Bradyrhizobium huanghuaihaiense is a bacterium from the genus of Bradyrhizobium.
Bradyrhizobium jicamae is a Gram-negative, strictly aerobic bacteria from the genus Bradyrhizobium.
Bradyrhizobium oligotrophicum is a nitrogen-fixing bacteria from the genus of Bradyrhizobium which was isolated from rice paddy soil in Miyagi Prefecture in Japan.
Bradyrhizobium pachyrhizi is a bacterium from the genus of Bradyrhizobium which was isolated from nodules of Pachyrhizus erosus in Guanacaste in Costa Rica.
Bradyrhizobium paxllaeri is a bacterium from the genus of Bradyrhizobium.
Bradyrhizobium ingae is a bacterium from the genus of Bradyrhizobium which has been isolated from the nodules of the tree Inga laurina in Cerrado in Brazil.
Bradyrhizobium lupini is a bacterium from the genus of Bradyrhizobium.
Bradyrhizobium manausense is a bacterium from the genus of Bradyrhizobium which has been isolated from the nodules from the plant Vigna unguiculata from the Amazon rainforest.
Bradyrhizobium ottawaense is a nitrogen fixing bacterium from the genus of Bradyrhizobium which has been isolated from the nodules of soybeans in Ottawa in Canada.
