Bacteria Research Team, NNIBR, Sangju, 37242, Republic of Korea.
Environmental Microbiology Research Team, NNIBR, Sangju, 37242, Republic of Korea.
Arch Microbiol. 2020 Apr;202(3):591-595. doi: 10.1007/s00203-019-01770-5. Epub 2019 Nov 19.
A Gram-negative, non-motile, rod-shaped bacterial strain, designated GS13, was isolated from sediments in a branch of the Nackdong River in Sangju, Korea. Optimal growth occurred at pH 7.0, 20 °C, and 0% NaCl. Phylogenetic analyses using 16S rRNA showed that strain GS13 is a member of the genus Flavobacterium, with highest similarity to Flavobacterium soyangense IMCC26223 (97.0%). The DNA G+C content of strain GS13 was 36.2 mol%. The dominant fatty acids were summed feature 3 (Cω7c and/or Cω6c) and iso-C. The major polar lipids were phosphatidylethanolamine, three unidentified aminolipids, three unidentified lipids, and one unidentified aminophospholipid. The predominant respiratory quinone was MK-6. Our data demonstrate that strain GS13 can be distinguished from closely-related Flavobacterium species. Thus, strain GS13 is a novel Flavobacterium species, and we propose the name Flavobacterium nackdongense sp. nov. The type strain is GS13 (=KCTC 62569 = JCM 32765).
一株革兰氏阴性、非运动、杆状的细菌菌株，被命名为 GS13，从韩国桑菊市 Nackdong 河的一条支流的沉积物中分离得到。最佳生长条件为 pH7.0、20°C 和 0%NaCl。16S rRNA 的系统发育分析表明，菌株 GS13 是黄杆菌属的一个成员，与 Flavobacterium soyangense IMCC26223（97.0%）最为相似。菌株 GS13 的 DNA G+C 含量为 36.2 mol%。主要脂肪酸为 sum feature 3（Cω7c 和/或 Cω6c）和 iso-C。主要极性脂为磷脂酰乙醇胺、三种未鉴定的胺脂、三种未鉴定的脂和一种未鉴定的胺磷脂。主要呼吸醌为 MK-6。我们的数据表明，菌株 GS13 可以与密切相关的黄杆菌属物种区分开来。因此，菌株 GS13 是一种新的黄杆菌属物种，我们提议将其命名为 Flavobacterium nackdongense sp. nov. 模式菌株为 GS13（=KCTC 62569 = JCM 32765）。
