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The cowpea is an annual herbaceous legume from the genus Vigna. Due to its tolerance for sandy soil and low rainfall, it is an important crop in the semiarid regions across Africa and Asia. It requires very few inputs, as the plant's root nodules are able to fix atmospheric nitrogen, making it a valuable crop for resource-poor farmers and well-suited to intercropping with other crops. The whole plant is used as forage for animals, with its use as cattle feed likely responsible for its name.
Vigna is a genus of flowering plants in the legume family, Fabaceae, with a pantropical distribution. It includes some well-known cultivated species, including many types of beans. Some are former members of the genus Phaseolus. According to Hortus Third, Vigna differs from Phaseolus in biochemistry and pollen structure, and in details of the style and stipules.
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.
Bradyrhizobium arachidis is a species of legume-root nodulating, microsymbiotic nitrogen-fixing bacterium. It was first isolated from Arachis hypogaea root nodules in China. Its type strain is CCBAU 051107T.
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 species 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 daqingense is a bacterium from the genus Bradyrhizobium.
Bradyrhizobium ganzhouense is a bacterium from the genus of Bradyrhizobium which was isolated from Acacia melanoxylon.
Bradyrhizobium huanghuaihaiense is a bacterium from the genus of Bradyrhizobium.
Bradyrhizobium pachyrhizi is a bacterium from the genus of Bradyrhizobium which was isolated from nodules of Pachyrhizus erosus in Guanacaste in Costa Rica.
Bradyrhizobium erythrophlei is a bacterium from the genus of Bradyrhizobium which has been isolated from the nodules of the tree Erythrophleum fordii.
Bradyrhizobium ferriligni is a bacterium from the genus of Bradyrhizobium which has been isolated from the nodules of the tree Erythrophleum fordii.
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 neotropicale is a bacterium from the genus of Bradyrhizobium which has been isolated from the nodules of the tree Centrolobium paraense from the Amazon rainforest in Brazil.
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.
Bradyrhizobium guangdongense is a bacterium from the genus of Bradyrhizobium which has been isolated from the effective nodules of a peanut plant.
Bradyrhizobium kavangense is a nitrogen-fixing bacterium from the genus Bradyrhizobium which has been isolated from the nodules of the cowpea Vigna unguiculata in the Kavango region in Namibia.
Bradyrhizobium subterraneum is a nitrogen-fixing bacterium from the genus of Bradyrhizobium which has been isolated from the effective nodules of the peanut Arachis hypogaea.
References
- 1 2 Parte, A.C. "Bradyrhizobium". LPSN .
- 1 2 "Bradyrhizobium manausense". www.uniprot.org.
- ↑ Silva, F. V.; De Meyer, S. E.; Simoes-Araujo, J. L.; Barbe, T. d. C.; Xavier, G. R.; O'Hara, G.; Ardley, J. K.; Rumjanek, N. G.; Willems, A.; Zilli, J. E. (17 April 2014). "Bradyrhizobium manausense sp. nov., isolated from effective nodules of Vigna unguiculata grown in Brazilian Amazonian rainforest soils". International Journal of Systematic and Evolutionary Microbiology. 64 (Pt 7): 2358–2363. doi: 10.1099/ijs.0.061259-0 . PMID 24744018.