Rhizobium ruizarguesonis sp. nov., isolated from nodules of Pisum sativum L.

Systematic and Applied Microbiology
Beatriz JorrinJuan Imperial

Abstract

Four strains, coded as UPM1132, UPM1133T, UPM1134 and UPM1135, and isolated from nodules of Pisum sativum plants grown on Ni-rich soils were characterised through a polyphasic taxonomy approach. Their 16S rRNA gene sequences were identical and showed 100% similarity with their closest phylogenetic neighbors, the species included in the 'R. leguminosarum group': R. laguerreae FB206T, R. leguminosarum USDA 2370T, R. anhuiense CCBAU 23252T, R. sophoreae CCBAU 03386T, R. acidisoli FH13T and R. hidalgonense FH14T, and 99.6% sequence similarity with R. esperanzae CNPSo 668T. The analysis of combined housekeeping genes recA, atpD and glnII sequences showed similarities of 92-95% with the closest relatives. Whole genome average nucleotide identity (ANI) values were 97.5-99.7% ANIb similarity among the four strains, and less than 92.4% with closely related species, while digital DNA-DNA hybridization average values (dDDH) were 82-85% within our strains and 34-52% with closely related species. Major fatty acids in strain UPM1133T were C18:1 ω7c / C18:1 ω6c in summed feature 8, C14:0 3OH/ C16:1 iso I in summed feature 2 and C18:0. Colonies were small to medium, pearl-white coloured in YMA at 28°C and growth was observed in the ranges 8-34...Continue Reading

Citations

Oct 1, 2020·International Journal of Systematic and Evolutionary Microbiology·Aharon Oren, George M Garrity
Jan 11, 2021·International Microbiology : the Official Journal of the Spanish Society for Microbiology·Sevil BasbugaCanan Can
Jan 23, 2021·Genes·J Peter W YoungChang-Fu Tian
Mar 5, 2021·International Journal of Systematic and Evolutionary Microbiology·Junjie ZhangXiaoxia Zhang

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