Wang Dan-Yang, Wang Qian, Liu Jie, Zhang De-Chao
Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, People's Republic of China.
University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China.
Curr Microbiol. 2018 Sep;75(9):1142-1146. doi: 10.1007/s00284-018-1500-6. Epub 2018 Apr 25.
The Gram-stain-negative, rod-shaped, aerobic strain, designated YC1039, was isolated from a seamount northern Mariana Trench in the tropical western Pacific. Phylogenetic analysis based on 16S rRNA gene sequence showed that strain YC1039 was related to the genus Mesoflavibacter and had highest 16S rRNA gene sequence similarities to Mesoflavibacter sabulilitoris GJMS-9 (98.3%) and Mesoflavibacter zeaxanthinifaciens TD-ZX30 (98.2%). The predominant cellular fatty acids were iso-C G and iso-C. The polar lipid profile contained phosphatidylethanolamine, two unidentified phospholipids, and 13 unidentified lipids. The respiratory quinone was MK-6. The genomic DNA G+C content of strain YC1039 was 29.8 mol%. On the basis of the evidence presented in this study, strain YC1039 represents a novel species of the genus Mesoflavibacter, for which we propose the name Mesoflavibacter profundi sp. nov. (type strain YC1039 = KACC 19026 = CGMCC 1.16329).
革兰氏染色阴性、杆状、需氧菌株，命名为YC1039，是从热带西太平洋马里亚纳海沟北部的一座海山中分离得到的。基于16S rRNA基因序列的系统发育分析表明，菌株YC1039与中黄杆菌属相关，与沙质中黄杆菌GJMS-9（98.3%）和产玉米黄质中黄杆菌TD-ZX30（98.2%）的16S rRNA基因序列相似度最高。主要的细胞脂肪酸为异-C₁₅:₀和异-C₁₅:₀₂。极性脂质谱包含磷脂酰乙醇胺、两种未鉴定的磷脂和13种未鉴定的脂质。呼吸醌为MK-6。菌株YC1039的基因组DNA G+C含量为29.8 mol%。基于本研究提供的证据，菌株YC1039代表中黄杆菌属的一个新物种，我们将其命名为深海中黄杆菌（Mesoflavibacter profundi sp. nov.）（模式菌株YC1039 = KACC 19026 = CGMCC 1.16329）。
