Key Laboratory of Desert and Desertification, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, PR China.
University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing 100049, PR China.
Int J Syst Evol Microbiol. 2020 Dec;70(12):6338-6347. doi: 10.1099/ijsem.0.004536.
A Gram-stain-positive, aerobic, rod-shaped, non-motile, endospore-forming and UV-resistant bacterial strain, designated strain TKL69, was isolated from sandy soil sampled in the Taklimakan Desert. The strain grew at 20-50 °C, pH 6-9 and with 0-12 % (w/v) NaCl. The major fatty acids were anteiso-C, iso-C and C. The only respiratory quinone was MK-7. The cell-wall peptidoglycan was -diaminopimelic acid. Diphosphatidyl glycerol, two unidentified aminophospholipids and one unidentified phospholipid were identified as the major polar lipids. Genomic DNA analysis revealed a G+C content of 38.5 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain TKL69 has the highest similarity to CGMCC 1.12331 (96.9 %) but belongs to an independent taxon separated from other genera of the family . Phylogenetic, phenotypic and chemotaxonomic analyses suggested that strain TKL69 represents a novel species of a new genus, for which the name gen. nov., sp. nov. is proposed, with the type strain being TKL69 (=JCM 33497=CICC 24779).
一株革兰氏阳性、需氧、杆状、不运动、产芽孢且抗紫外线的细菌菌株,被命名为 TKL69 菌株,从取自塔克拉玛干沙漠的沙土中分离得到。该菌株在 20-50°C、pH 值 6-9 和 0-12%(w/v)NaCl 的条件下生长。主要脂肪酸为 anteiso-C、iso-C 和 C。唯一的呼吸醌是 MK-7。细胞壁肽聚糖为 -二氨基庚二酸。二磷酸甘油酯、两种未鉴定的氨基磷脂和一种未鉴定的磷脂被鉴定为主要极性脂。基因组 DNA 分析显示 G+C 含量为 38.5mol%。基于 16S rRNA 基因序列的系统发育分析表明,TKL69 菌株与 CGMCC 1.12331(96.9%)具有最高的相似度,但属于一个独立的分类群,与其他属分离。系统发育、表型和化学分类分析表明,TKL69 菌株代表了一个新属的新种,建议采用新属名 gen. nov.,sp. nov.,其模式菌株为 TKL69(=JCM 33497=CICC 24779)。