Lau Ken W K, Ng Connie Y M, Ren Jianping, Lau Simon C L, Qian Pei-Yuan, Wong Po-Keung, Lau T C, Wu Madeline
Department of Biology, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, S. A. R., P. R. China.
Department of Biology, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, S. A. R., P. R. China.
Int J Syst Evol Microbiol. 2005 May;55(Pt 3):1051-1057. doi: 10.1099/ijs.0.63155-0.
An aerobic, Gram-negative, non-fermentative, rod-shaped, motile, orange-pigmented bacterium, UST20020801(T), was isolated from sea-water samples collected from Port Shelter, Hong Kong, S.A.R., China, in August 2002. The full 16S rRNA gene sequence of this strain shared only 87.5 % similarity with its nearest relative, Crocinitomix catalasitica, a species of the family Cryomorphaceae. However, strain UST20020801(T) possessed menaquinone-6, a major respiratory quinone of members of the family Flavobacteriaceae. This strain contains unique fatty acids such as i15 : 1G, i17 : 1omega9c, 2-OH 15 : 0, 15 : 1omega6c and three unknown fatty acids of equivalent chain-length of 11.543, 13.565 and 16.582. Further analysis of its ecophysiology and biochemistry suggests that this strain represents a new genus in the phylum 'Bacteroidetes'. The name Owenweeksia hongkongensis gen. nov., sp. nov. is proposed. The type strain is UST20020801(T) (=NRRL B-23963(T) = JCM 12287(T)).
2002年8月，从中国香港特别行政区吐露港采集的海水样本中分离出一株需氧、革兰氏阴性、非发酵、杆状、具运动性、产橙色色素的细菌，命名为UST20020801(T)。该菌株的16S rRNA基因全长序列与其亲缘关系最近的菌株——嗜冷杆菌科的Crocinitomix catalasitica，相似度仅为87.5%。然而，UST20020801(T)菌株含有甲基萘醌-6，这是黄杆菌科成员的主要呼吸醌。该菌株含有独特的脂肪酸，如i15 : 1G、i17 : 1ω9c、2-OH 15 : 0、15 : 1ω6c以及三种等效链长分别为11.543、13.565和16.582的未知脂肪酸。对其生态生理学和生物化学的进一步分析表明，该菌株代表了拟杆菌门中的一个新属。因此，提出新属名香港欧文威克斯菌属（Owenweeksia hongkongensis），新种名香港欧文威克斯菌（Owenweeksia hongkongensis）。模式菌株为UST20020801(T)（=NRRL B-23963(T) = JCM 12287(T)）。
