Ensifer fredii explained

Ensifer fredii is a nitrogen fixing bacterium.^[1] It is a fast-growing root nodule bacterium. Ensifer fredii exhibits a broad host-range and is able to nodulate both determinant hosts, such as soy, as well as indeterminate hosts including the pigeon pea. Because of their ease of host infection there is interest in their genetics and the symbiotic role in host infection and nodule formation.^[2]

History

Ensifer fredii was first isolated from soybeans. The type strain was isolated from a root nodule of Glycine max growing in Hunan Province, China, designated strain USDA 205 (= ATCC 35423 = PRC 205).

Further reading

• Forsberg LS, Reuhs BL . Structural characterization of the K antigens from Rhizobium fredii USDA257: evidence for a common structural motif, with strain-specific variation, in the capsular polysaccharides of Rhizobium spp . . 179 . 17 . 5366–71 . September 1997 . 9286989 . 179405 . 10.1128/jb.179.17.5366-5371.1997.
• Sadowsky MJ, Cregan PB, Keyser HH . Nodulation and Nitrogen Fixation Efficacy of Rhizobium fredii with Phaseolus vulgaris Genotypes . . 54 . 8 . 1907–10 . August 1988 . 10.1128/AEM.54.8.1907-1910.1988 . 16347705 . 202777 .
• Yamakawa. Takeo. Shirai. Teiko. Ishizuka. Junji. Effects of symbiosis with Rhizobium fredii on transport of fixed nitrogen in the xylem of soybean plants. Soil Science and Plant Nutrition. 46. 4. 2000. 885–892. 0038-0768. 10.1080/00380768.2000.10409154. 96900718.
• Weidner. S.. Becker. A.. Bonilla. I.. Jaenicke. S.. Lloret. J.. Margaret. I.. Puhler. A.. Ruiz-Sainz. J. E.. Schneiker-Bekel. S.. Szczepanowski. R.. Vinardell. J. M.. Zehner. S.. Gottfert. M.. Genome Sequence of the Soybean Symbiont Sinorhizobium fredii HH103. Journal of Bacteriology. 194. 6. 2012. 1617–1618. 0021-9193. 10.1128/JB.06729-11. 22374952. 3294874.
• Balatti PA, Pueppke SG . Cultivar-Specific Interactions of Soybean with Rhizobium fredii Are Regulated by the Genotype of the Root . . 94 . 4 . 1907–9 . December 1990 . 16667934 . 1077472 . 10.1104/pp.94.4.1907.

Notes and References

1. Scholla. M. H.. Elkan. G. H.. Rhizobium fredii sp. nov., a Fast-Growing Species That Effectively Nodulates Soybeans. International Journal of Systematic Bacteriology. 34. 4. 1984. 484–486. 0020-7713. 10.1099/00207713-34-4-484. free.
2. López-Baena. Francisco J.. Ruiz-Sainz. José E.. Rodríguez-Carvajal. Miguel A.. Vinardell. José M.. 2016-05-18. Bacterial Molecular Signals in the Sinorhizobium fredii-Soybean Symbiosis. International Journal of Molecular Sciences. en. 17. 5. 755. 10.3390/ijms17050755. 27213334. 4881576 . free .