文献类型： 外文期刊
第一作者： Zhao, Zhuo-Li
作者： Zhao, Zhuo-Li;Cheng, Li-Jiao;Niu, Ming-Ming;Zhang, Yan-Min;Zhang, Ling-Yu;Meng, Xiao-Lin;Nie, Guo-Xing;Ming, Hong;Ji, Wei-Li;Ding, Chen-Long
作者机构：
关键词： Azospirillum thermophilum sp. nov.; hot spring; polyphasic taxonomy
期刊名称：INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY （ 影响因子：2.747； 五年影响因子：2.889 ）
ISSN： 1466-5026
年卷期： 2020 年 70 卷 1 期
页码：
收录情况： SCI
摘要： A novel Gram-staining negative, aerobic, motile by flagellum, rod-shaped bacterium, designated CFH 70021(T) was isolated from a hot spring soil sample collected from Tengchong, Yunnan province, PR China. Growth of CFH 70021(T) occurred at 15-50 degrees C (optimum 50 degrees C), pH 5.0-7.0 (optimum pH 7.0) and with 0-3.0% (w/v) NaCl (optimum 0 %, w/v). The genome of CFH 70021(T) consisted of four complete circular chromosomes and five plasmids, the genomic DNA G+C content was 69.3 mol%. Comparison of the 16S rRNA gene sequences indicated that CFH 70021(T) represented a member of the genus Azospirillum and showed close relationship with the type strains of Azospirillum agricola CC-HIH038(T) (97.8%), Azospirillum rugosum IMMIB AFH-6(T) (97.6%), Azospirillum doebereinerae GSF71(T) (97.6 %), Azospirillum thiophilum DSM 21654T (97.4%) and Azospirillum picis IMMIB TAR-3(T) (97.2%). The polar lipids of CFH 70021(T) contained diphosphatidylglycerol, phosphatidylmehtylethanolamine, phosphatidylglycerol, phosphatidylcholine, two aminolipids and an unidentified phospholipid. The predominant cellular fatty acids (>10%) included C(19:0)cyclo omega 8c (11.4 %), C-16:0 (27.6 %) and summed feature 8 (C (18:1)omega 7c/C-18:1 omega 6c, 40.9%). The major isoprenoid quinone was Q-10. On the basis of the low ANIb result (<78 %) and different phenotypic and chemotaxonomic characters, we conclude that strain CFH 70021(T) represents a novel member of the genus Azospirillum, for which the name Azospirillum thermophilum sp. nov. is proposed. The type strain is CFH 70021(T) (=KCTC 62259(T)= CCTCC AB2018121(T)).
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