新种，一种从珠江口分离得到的新型细菌。

sp. nov., a novel bacterium isolated from Pearl River Estuary.

机构信息

State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, PR China.

Biology and Food Engineering Institute, Guangdong University of Education, Guangzhou, 510303, PR China.

出版信息

Int J Syst Evol Microbiol. 2023 Apr;73(4). doi: 10.1099/ijsem.0.005836.

DOI:10.1099/ijsem.0.005836

PMID:37067995

Abstract

A Gram-staining-positive, aerobic, motile, and rod-shaped strain, designated SYSU M60031, was isolated from a Pearl River Estuary sediment sample, Guangzhou, Guangdong, China. The isolate could grow at pH 5.0-8.0 (optimum, pH 7.0), 25-37 °C (optimum, 28 °C) and in the presence of 0-1 % (w/v) NaCl (optimum, 0 %). The predominant respiratory menaquinone of SYSU M60031 was MK-7. The cellular polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, one unidentified aminophospholipid, and one unidentified aminolipid. The major fatty acids (>10 % of total) were iso-C, iso-C, anteiso-C, iso-C, and C. The genomic DNA G+C content was 51.2 %. Phylogenetic analyses based on 16S rRNA gene sequences and core genes indicated that strain SYSU M60031 belonged to the genus and showed the highest sequence similarity to NAF001 (96.16%), followed by SYSU K30001 (95.08 %). Based on the phenotypic, genotypic, and phylogenetic data, strain SYSU M60031 should be considered to represent a novel species of the genus , for which the name sp. nov. is proposed. The type strain of the proposed novel isolate is SYSU M60031 (=CGMCC 1.19243 =NBRC 115614).

摘要

一株革兰氏阳性、需氧、能运动的杆状菌株，被命名为 SYSU M60031，从中国广东广州珠江口河口沉积物样品中分离得到。该分离株可以在 pH 5.0-8.0（最佳 pH 值为 7.0）、25-37°C（最佳温度为 28°C）和 0-1%（w/v）NaCl（最佳 0%）的条件下生长。SYSU M60031 的主要呼吸menaquinone 为 MK-7。细胞极性脂包括二磷脂酰甘油、磷脂酰乙醇胺、磷脂酰甘油、一种未鉴定的氨基磷脂和一种未鉴定的氨基脂。主要脂肪酸（占总脂肪酸的>10%）为 iso-C、iso-C、anteiso-C、iso-C 和 C。基因组 DNA G+C 含量为 51.2%。基于 16S rRNA 基因序列和核心基因的系统发育分析表明，菌株 SYSU M60031 属于属，与 NAF001（96.16%）的序列相似度最高，其次是 SYSU K30001（95.08%）。基于表型、基因型和系统发育数据，菌株 SYSU M60031 应被视为属的一个新种，建议命名为 sp. nov.。该新分离株的模式菌株为 SYSU M60031（=CGMCC 1.19243=NBRC 115614）。