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Sinorhizobium meliloti are an aerobic, Gram-negative, and diazotrophic species of bacteria. S. meliloti are motile and possess a cluster of peritrichous flagella. S. meliloti fix atmospheric nitrogen into ammonia for their legume symbionts, such as alfalfa. S. meliloti forms a symbiotic relationship with legumes from the genera Medicago, Melilotus and Trigonella, including the model legume Medicago truncatula. This symbiosis promotes the development of a plant organ, termed a root nodule. Because soil often contains a limited amount of nitrogen for plant use, the symbiotic relationship between S. meliloti and their legume hosts has agricultural applications. These techniques reduce the need for inorganic nitrogenous fertilizers.
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Mesorhizobium is a genus of Gram-negative soil bacteria. At least one, the nitrogen fixing species, Mesorhizobium loti, forms symbiotic root nodules with plants in the genus Lotus. Strain MAFF303099 of M. japonicum has been fully sequenced.
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Mesorhizobium tianshanense, formerly known as Rhizobium tianshanense, is a Gram negative species of bacteria found in the root nodules of many plant species. Its type strain is A-1BS.
Mesorhizobium plurifarium is a species of root nodule bacteria first isolated from Acacia species in Senegal. Its type strain is ORS 1032.
Mesorhizobium amorphae is a species of root nodule bacteria first isolated from Amorpha fruticosa species in China. It is purported to be native to American soil. Its genome has been sequenced. Its type strain is ACCC 19665.
Neorhizobium huautlense is a Gram negative root nodule bacteria. It forms nitrogen-fixing root nodules on Sesbania herbacea.
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.
Mesorhizobium mediterraneum is a bacterium from the genus Mesorhizobium, which was isolated from root nodule of the Chickpea in Spain. The species Rhizobium mediterraneum was subsequently transferred to Mesorhizobium mediterraneum. This species, along with many other closely related taxa, have been found to promote production of chickpea and other crops worldwide by forming symbiotic relationships.
References
- ↑ LSPN lpsn.dsmz.de
- ↑ Straininfo of Mesorhizobium huakuii
- ↑ taxonomy Browser
- ↑ UniProt
- ↑ ATCC
- ↑ Jarvis, B. D. W.; Van Berkum, P.; Chen, W. X.; Nour, S. M.; Fernandez, M. P.; Cleyet-Marel, J. C.; Gillis, M. (1997). "Transfer of Rhizobium loti, Rhizobium huakuii, Rhizobium ciceri, Rhizobium mediterraneum, and Rhizobium tianshanense To mesorhizobium gen. nov". International Journal of Systematic Bacteriology. 47 (3): 895. doi: 10.1099/00207713-47-3-895 .