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sp. nov.,分离自农田土壤。

sp. nov., isolated from farmland soil.

机构信息

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

Laboratory Centre of Life Science, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, PR China.

出版信息

Int J Syst Evol Microbiol. 2019 Dec;69(12):3806-3811. doi: 10.1099/ijsem.0.003684.

Abstract

A strictly aerobic, Gram-stain-negative, rod-shaped, yellow, non-spore-forming bacterial strain, designated P-25, was isolated from soil collected in Yantai, Shandong Province, PR China. The temperature, pH and NaCl concentration ranges for the growth of strain P-25 were 10-37 °C (optimum, 28-30 °C), pH 6.0-9.0 (optimum, pH 7.5-8.0) and 0-4 % (w/v) (optimum, 1 % w/v), respectively. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain P-25 was most closely related to S27 (98.1 % 16S rRNA gene sequence similarity), followed by CM134L-2 (97.2 %) and THG-T11 (97.1 %). The genomic DNA G+C content of strain P-25 based on its draft genome sequence was 38.1 %. MK-7 was the major respiratory quinone, and iso-C, Cω7 and/or Cω6 (summed feature 3) and iso-C 3-OH were the major fatty acids. The major polar lipids were phosphatidylethanolamine, one unidentified aminophospholipid, one unidentified phospholipid, two unidentified lipids, five unidentified aminolipids and two unidentified glycolipids. Average nucleotide identity values for the draft genomes between strain P-25 and strains S27, CM134L-2 and THG-T11 were 81.8, 77.6 and 81.2 %, respectively, and the digital DNA-DNA hybridization (dDDH) values were 30.0, 19.2 and 27.6 %, respectively. Based on their phylogenetic and phenotypic characteristics, chemotaxonomic data, and dDDH results, strain P-25 is considered to represent a novel species of the genus , for which the name sp. nov. is proposed; the type strain is strain P-25 (KCTC 62821=CCTCC AB 2018185).

摘要

一株严格需氧、革兰氏阴性、杆状、黄色、非孢子形成的细菌菌株,被命名为 P-25,从中国山东省烟台市采集的土壤中分离得到。菌株 P-25 的生长温度、pH 值和 NaCl 浓度范围分别为 10-37°C(最适温度为 28-30°C)、pH 6.0-9.0(最适 pH 为 7.5-8.0)和 0-4%(w/v)(最适为 1% w/v)。基于 16S rRNA 基因序列的系统发育分析表明,菌株 P-25 与 S27(98.1% 16S rRNA 基因序列相似性)最为密切相关,其次是 CM134L-2(97.2%)和 THG-T11(97.1%)。基于其基因组草图序列,菌株 P-25 的基因组 DNA G+C 含量为 38.1%。MK-7 是主要的呼吸醌,iso-C、Cω7 和/或 Cω6(总和特征 3)和 iso-C 3-OH 是主要的脂肪酸。主要的极性脂是磷脂酰乙醇胺、一种未鉴定的胺磷脂、一种未鉴定的磷脂、两种未鉴定的脂类、五种未鉴定的胺脂类和两种未鉴定的糖脂类。菌株 P-25 与 S27、CM134L-2 和 THG-T11 的基因组草图之间的平均核苷酸同一性值分别为 81.8%、77.6%和 81.2%,数字 DNA-DNA 杂交(dDDH)值分别为 30.0%、19.2%和 27.6%。基于其系统发育和表型特征、化学分类学数据和 dDDH 结果,菌株 P-25 被认为代表了一个新的属种,建议命名为 sp. nov.。该模式菌株是 P-25 菌株(KCTC 62821=CCTCC AB 2018185)。

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