Rhizobium cauense sp nov., isolated from root nodules of the herbaceous legume Kummerowia stipulacea grown in campus lawn soil
文献类型: 外文期刊
第一作者: Liu, Tian Yan
作者: Liu, Tian Yan;Li, Ying, Jr.;Liu, Xiao Xiao;Sui, Xin Hua;Wang, En Tao;Chen, Wen Xin;Chen, Wen Feng;Liu, Tian Yan;Li, Ying, Jr.;Liu, Xiao Xiao;Sui, Xin Hua;Wang, En Tao;Chen, Wen Xin;Chen, Wen Feng;Wang, En Tao;Zhang, Xiao Xia;Pulawska, Joanna
作者机构:
关键词: Rhizobium cauense sp nov.;Kummerowia stipulacea;Polyphasic taxonomy
期刊名称:SYSTEMATIC AND APPLIED MICROBIOLOGY ( 影响因子:4.022; 五年影响因子:4.396 )
ISSN: 0723-2020
年卷期: 2012 年 35 卷 7 期
页码:
收录情况: SCI
摘要: Three bacterial isolates (CCBAU 101002(T), CCBAU 101000 and CCBAU 101001) originating from root nodules of the herbaceous legume Kummerowia stipulacea grown in the campus lawn of China Agricultural University were characterized with a polyphasic taxonomic approach. Comparative 16S rRNA gene sequence analysis showed that the isolates shared 99.85-99.92% sequence similarities and had the highest similarities to the type strains of Rhizobium mesoamericanum (99.31%), R. endophyticum (98.54%), R. tibeticum (98.38%) and R. grahamii (98.23%). Sequence similarity of four concatenated housekeeping genes (atpD, glnII, recA and rpoB) between CCBAU 101002(T) and its closest neighbor (R. grahamii) was 92.05%. DNA-DNA hybridization values between strain CCBAU 101002(T) and the four type strains of the most closely related Rhizobium species were less than 28.4 +/- 0.8%. The G+C mol% of the genomic DNA for strain CCBAU 101002(T) was 58.5% (Tm). The major respiratory quinone was ubiquinone (Q-10). Summed feature 8 (18:1 omega 7cis/18:1 omega 6cis) and 16:0 were the predominant fatty acids. Strain CCBAU 101002(T) contained phosphatidylcholine and phosphatidylethanolamine as major polar lipids, and phosphatidylglycerol and cardiolipin as minor ones. No glycolipid was detected. Unlike other strains, this novel species could utilize dulcite or sodium pyruvate as sole carbon sources and it was resistant to 2% (w/v) NaCl. On the basis of the polyphasic study, a new species Rhizobium cauense sp. nov. is proposed, with CCBAU 101002(T) (=LMG 26832(T) = HAMBI 3288(T)) as the type strain. (C) 2012 Elsevier GmbH. All rights reserved.
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