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Rhizobium is a genus of Gram-negative soil bacteria that fix nitrogen. Rhizobium species form an endosymbiotic nitrogen-fixing association with roots of (primarily) legumes and other flowering plants.
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.
Ensifer is a genus of nitrogen-fixing bacteria (rhizobia), three of which have been sequenced.
Pararhizobium giardinii is a Gram negative root nodule bacteria. It forms nitrogen-fixing root nodules on legumes, being first isolated from those of Phaseolus vulgaris.
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.
Rhizobium mongolense is a Gram negative root nodule bacteria, which nodulates and forms nitrogen-fixing symbioses with Medicago ruthenica. Its type strain is USDA 1844.
Methylobacterium nodulans is an aerobic, facultatively methylotrophic, legume root nodule-forming and nitrogen-fixing bacteria.
Mesorhizobium ciceri is a gram-negative, nitrogen-fixing motile bacteria from the genus of Mesorhizobium which was isolated from Chickpea nodules of Cicer arietinum in Spain. Rhizobium cicero was transferred to Mesorhizobium ciceri.
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.
Devosia neptuniae is a nitrogen-fixing bacteria that nodulates Neptunia natans. It is Gram-negative, strictly aerobic short rod-shaped and motile by a subpolar flagellum. The type strain of D. neptuniae is LMG 21357T.
Paraburkholderia dilworthii is a Gram-negative, rod-shaped bacterium from the genus Paraburkholderia and the family Burkholderiaceae. It was isolated from the root nodules of the plant Lebeckia ambigua.
Paraburkholderia rhynchosiae is a Gram-negative, rod-shaped bacterium from the genus Paraburkholderia and the family Burkholderiaceae which was isolated from root nodules from the plant Rhynchosia ferulifolia in South Africa.
Paraburkholderia sprentiae is a Gram-negative, rod-shaped bacterium from the genus Paraburkholderia and the family Burkholderiaceae which was isolated from root nodules from the plant Lebeckia ambigua in South Africa.
Rhizobium indigoferae is a Gram negative root nodule bacteria, which nodulates and forms nitrogen-fixing symbioses with Indigofera species. Its type strain is CCBAU 71714(T).
Bosea lupini is a bacterium from the genus of Bosea. B. lupini is an aerobic and gram-negative bacterium capable of chemolithoautotrophic growth.
Ensifer medicae is a species of gram-negative, nitrogen-fixing, rod-shaped bacteria. They can be free-living or symbionts of leguminous plants in root nodules. E.medicae was first isolated from root nodules on plants in the genus Medicago. Some strains of E.medicae, like WSM419, are aerobic. They are chemoorganotrophic mesophiles that prefer temperatures around 28 °C. In addition to their primary genome, these organisms also have three known plasmids, sized 1,570,951 bp, 1,245,408 bp and 219,313 bp.
Pararhizobium is a genus of Gram-negative soil bacteria that fix nitrogen. Some species of Pararhizobium form an endosymbiotic nitrogen-fixing association with roots of legumes.
Microvirga lotononidis is a nitrogen fixing, Gram-negative, rod-shaped and non-spore-forming root-nodule bacteria from the genus of Microvirga. Microvirga lotononidis lives in symbiosis with Listia angolensis.
Microvirga lupini is a nitrogen-fixing, Gram-negative, aerobic rod-shaped and non-spore-forming bacteria from the genus of Microvirga.
Microvirga vignae is a nitrogen-fixing bacteria from the genus of Microvirga which has been isolated from the Brazilian Semiarid region.
References
- 1 2 LPSN lpsn.dsmz.de
- ↑ Straininfo of Microvirga zambiensis
- ↑ UniProt
- ↑ Ardley, JK; Parker, MA; De Meyer, SE; Trengove, RD; O'Hara, GW; Reeve, WG; Yates, RJ; Dilworth, MJ; Willems, A; Howieson, JG (November 2012). "Microvirga lupini sp. nov., Microvirga lotononidis sp. nov. and Microvirga zambiensis sp. nov. are alphaproteobacterial root-nodule bacteria that specifically nodulate and fix nitrogen with geographically and taxonomically separate legume hosts" (PDF). International Journal of Systematic and Evolutionary Microbiology. 62 (Pt 11): 2579–88. doi:10.1099/ijs.0.035097-0. PMID 22199210.