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新种,从嘧霉胺污染土壤中分离得到。

sp. nov., isolated from a procymidone-contaminated soil.

作者信息

Zhou Xi-Yi, Zhang Long, Su Xiao-Jing, Hang Ping, Hu Bing, Jiang Jian-Dong

机构信息

Department of Microbiology, Key Lab of Microbiology for Agricultural Environment, Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, 210095, Nanjing, PR China.

Institute of Organic Contaminant Control and Soil Remediation, College of Resource and Environmental Sciences, Nanjing Agricultural University, 210095, Nanjing, PR China.

出版信息

Int J Syst Evol Microbiol. 2019 Sep;69(9):2936-2941. doi: 10.1099/ijsem.0.003581.

Abstract

A novel Gram-stain-negative, strictly aerobic, non-spore-forming, motile with one polar flagellum and short rod-shaped bacterium, designated strain ZLT-5, was isolated from procymidone-contaminated soil sampled in Nanjing, Jiangsu, PR China. Growth occurred at 26-37 °C (optimum, 37 °C), at pH 6.0-9.0 (pH 7.0) and in the presence of 0-1.5 % NaCl (0.5 %). Phylogenetic analysis based on the 16S rRNA gene sequences showed that strain ZLT-5 belonged to the genus , with the highest sequence similarity to THG-DT81 (96.6 %), followed by DSM 21029 (96.5 %) and RP18 (96.3 %). The G+C content of strain ZLT-5 was 68.0 mol% (draft genome sequence). The average nucleotide identity value of the draft genomes between strain ZLT-5 and THG-DT81 was 75.4 %. Strain ZLT-5 contained ubiquinone-10 as the predominant isoprenoid quinone and -homospermidine as the major polyamine. The major polar lipids consisted of diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, phosphatidylcholine, phosphoaminolipid and sphingoglycolipid. The main cellular fatty acids (>10 % of the total fatty acids) of strain ZLT-5 were Cω6, summed feature 3 (Cω7 and/or C ISO 2-OH) and summed feature 8 (Cω7 and/or Cω6). Based on phylogenetic analysis and physiological and biochemical characterization, strain ZLT-5 is described as a novel species of the genus , for which the name sp. nov. is proposed. The type strain is ZLT-5 (=CCTCC AB 2018188=KCTC 62840).

摘要

从中国江苏省南京市受腐霉利污染的土壤中分离出一株新型革兰氏阴性、严格需氧、不形成芽孢、具一根极鞭毛且呈短杆状的细菌,命名为菌株ZLT-5。该菌在26-37 °C(最适温度为37 °C)、pH 6.0-9.0(pH 7.0)以及0-1.5 % NaCl(0.5 %)条件下生长。基于16S rRNA基因序列的系统发育分析表明,菌株ZLT-5属于 属,与 THG-DT81的序列相似性最高(96.6 %),其次是 DSM 21029(96.5 %)和 RP18(96.3 %)。菌株ZLT-5的G+C含量为68.0 mol%(基因组草图序列)。菌株ZLT-5与 THG-DT81的基因组草图平均核苷酸同一性值为75.4 %。菌株ZLT-5以泛醌-10作为主要类异戊二烯醌,以 -高亚精胺作为主要多胺。主要极性脂类包括双磷脂酰甘油、磷脂酰乙醇胺、磷脂酰甘油、磷脂酰胆碱、磷酸氨基脂和鞘糖脂。菌株ZLT-5的主要细胞脂肪酸(占总脂肪酸的>10 %)为Cω6、总和特征3(Cω7和/或C ISO 2-OH)以及总和特征8(Cω7和/或Cω6)。基于系统发育分析以及生理生化特征,菌株ZLT-5被描述为 属的一个新物种,为此提议命名为 sp. nov.。模式菌株为ZLT-5(=CCTCC AB 2018188=KCTC 62840)。

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