新种，从中国山西省的煤样中分离得到。

sp. nov., isolated from the coal samples in Shanxi Province of China.

作者信息

Gao Fangyu, Zhang Mei, Yang Qiang, Zhao Lijun, Xie Junyao, Yang Caixin, Du Xiaojuan, Kang Zhiming, Pu Ji, Zheng Han, Xu Jianguo, Dong Kui

机构信息

Research Center for Reverse Microbial Etiology, Workstation of Academician, Shanxi Medical University, Taiyuan 030001, PR China.

Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan 030001, PR China.

出版信息

Int J Syst Evol Microbiol. 2025 Jul;75(7). doi: 10.1099/ijsem.0.006837.

DOI:10.1099/ijsem.0.006837

PMID:40632584

Abstract

Two Gram-negative, oxidase-positive, catalase-positive, non-spore-forming, motile, short-rod strains (G13 and G34) were isolated from coal block samples. Phylogenetic analyses based on 16S rRNA genes and 718 core genes indicated that both strains belonged to the genus , with the closest relative being AIMA4 as their closest relative. Average nucleotide identity and digital DNA-DNA hybridization values were 79.4-89.27% and 23.6-37.0% below the species-level thresholds. Further chemotaxonomic analysis revealed that both strains possessed C 7 and/or C 6, C 7 and C as major cellular fatty acids, with Q-8 as the predominant respiratory quinone. The polar lipid profile was dominated by diphosphatidylglycerol, phosphatidylglycerol and phosphatidylethanolamine. Phenotypic and phylogenetic evidence support the proposal that strain G13 represents a novel species of the genus , with the name sp. nov. The type strain is G13 (=GDMCC 1.4691=JCM 37746).

摘要

从煤块样品中分离出两株革兰氏阴性、氧化酶阳性、过氧化氢酶阳性、无芽孢、具运动性的短杆菌株（G13和G34）。基于16S rRNA基因和718个核心基因的系统发育分析表明，这两株菌株均属于属，其亲缘关系最近的菌株为AIMA4。平均核苷酸同一性和数字DNA-DNA杂交值低于种水平阈值，分别为79.4 - 89.27%和23.6 - 37.0%。进一步的化学分类分析表明，这两株菌株均以C 7和/或C 6、C 7和C作为主要细胞脂肪酸，以Q-8作为主要呼吸醌。极性脂质谱以双磷脂酰甘油、磷脂酰甘油和磷脂酰乙醇胺为主。表型和系统发育证据支持菌株G13代表属一个新物种的提议，命名为新种。模式菌株为G13（=GDMCC 1.4691=JCM 37746）。