Pararhizobium qamdonense sp. nov., Isolated from an Alpine Soil in Tibet and the Reclassification of Rhizobium gei Shi et al. 2016 as Pararhizobium gei comb. nov.

文献类型： 外文期刊

第一作者： Zhang, Yi-fan

作者： Zhang, Yi-fan;Dai, Yan-na;Pu, Ji-feng;Pan, Hu;Liu, Hu-hu;Pan, Hu;Tian, Yun;Zhang, Yi-fan;Dai, Yan-na;Pu, Ji-feng;Pan, Hu;Yang, Xiao-feng

作者机构：

期刊名称：CURRENT MICROBIOLOGY （ 影响因子：2.6； 五年影响因子：2.6 ）

ISSN： 0343-8651

年卷期： 2024 年 81 卷 1 期

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收录情况： SCI

摘要： A novel Gram-stain-negative, aerobic, rod-shaped bacterium named T808(T) was isolated from an alpine soil in Qamdo, Tibet, PR China. Strain T808(T) grew at 5-30degree celsius, pH 5.0-9.0 (optimum, 25degree celsius and pH 7.0-8.0) with 0-2% (w/v) NaCl (optimum, 0%). The 16S rRNA gene sequences of strain T808(T) showed the highest similarity with Pararhizobium herbae CCBAU83011(T) (98.8%), followed by Pararhizobium polonicum F5.1(T) (98.7%), Pararhizobium giardinii H152(T) (98.5%), Rhizobium gei ZFJT-2( T) (98.4%), and Pararhizobium antarcticum NAQVI59(T) (97.5%). The highest digital DNA-DNA hybridization (dDDH), core-proteome average amino acid identity (cpAAI) and average nucleotide identity (ANI) values between strain T808(T) and related strains were estimated as 28.0%, 92.1% and 84.4%, respectively. Phylogenetic analysis based on 16S rRNA, core-proteome and whole-genome indicated that strain T808(T) belonged to the genus Pararhizobium. The genome size was 6.24 Mbp with genomic DNA G + C content of 60.1%. The major cellular fatty acids were Summed feature 8 (C-18:1 omega 7c or C-18:1 omega 6c), C-16:0 and C-19:0 cyclo omega 8c. The polar lipids were diphosphatidyl glycerol, phosphatidyl glycerol, phosphatidyl ethanolamine, phosphatidyl choline and unidentified aminophospholipid. The isoprenoid quinone were ubiquinone-10 and ubiquinone-9. Based on phenotypic, phylogenetic, and genotypic data, strain T808(T) is considered to represent a novel species of the genus Pararhizobium, for which the name Pararhizobium qamdonense sp. nov. is proposed. The type strain is T808(T) (= JCM 36247( T) = CICC 25216( T)). According to phylogenetic coherence based on 16S rRNA, core-proteome and whole-genome, it is also proposed that the type strain Rhizobium gei Shi et al. 2016 should be reclassified as Pararhizobium gei comb. nov., the type strain is ZFJT-2( T) (= CCTCC AB 2013015( T) = KCTC 32301( T) = LMG 27603( T)).

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