Sphingomonas pokkalii sp. nov., a novel plant associated rhizobacterium isolated from a saline tolerant pokkali rice and its draft genome analysis

Systematic and Applied Microbiology
Rahul R MenonN Rameshkumar

Abstract

Three strains L3B27T, 3CNBAF, L1A4 isolated from a brackish cultivated pokkali rice rhizosphere were characterised using a polyphasic taxonomic approach. Phylogenetic analysis based on 16S rRNA and recA gene sequences revealed that these strains were highly similar among each other and formed a separate monophyletic cluster within the genus Sphingomonas with Sphingomonas pituitosa DSM 13101T, Sphingomonas azotifigens DSM 18530T and Sphingomonas trueperi DSM 7225T as their closest relatives sharing 97.9-98.3% 16S rRNA similarity and 91.3-94.0% recA similarity values, respectively. The average nucleotide identity (ANI), average amino acid identity (AAI) and digital DNA-DNA hybridisation (dDDH) values between L3B27T (representative of the novel strains) and its phylogenetically closest Sphingomonas species were well below the established cut-off <94% (ANI/AAI) and <70% (dDDH) for species delineation. Further, the novel strains can be distinguished from its closest relatives based on several phenotypic traits. Thus, based on the polyphasic approach, we describe a novel Sphingomonas species for which the name Sphingomonas pokkalii sp. nov (type strain L3B27T=KCTC 42098T=MCC 3001T) is proposed. In addition, the novel strains were cha...Continue Reading

Citations

May 28, 2020·International Journal of Systematic and Evolutionary Microbiology·Hui ZhangJi-Quan Sun
Oct 20, 2020·Frontiers in Microbiology·Yingjie YangChengsheng Zhang
Jan 30, 2021·International Journal of Systematic and Evolutionary Microbiology·Aharon Oren, George M Garrity
Oct 13, 2020·Microbiological Research·Carolina Rocha-ArriagaAlfredo Cruz-Ramírez
Jan 22, 2022·International Journal of Systematic and Evolutionary Microbiology·Lei DongWen-Jun Li

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