Joung Yochan, Kang Heeyoung, Lee Beom-Il, Kim Haneul, Joh Kiseong, Kim Kyu-Joong
Department of Bioscience and Biotechnology, Hankuk University of Foreign Studies, Wangsan, Yongin, Gyeonggi 449-791, Republic of Korea.
Department of Biology, Kangnung-Wonju National University, Jibyeon, Gangneung, Gwangwon, 210-702, Republic of Korea.
Int J Syst Evol Microbiol. 2015 Feb;65(Pt 2):698-703. doi: 10.1099/ijs.0.068726-0. Epub 2014 Nov 26.
An aerobic, Gram-stain-negative, rod-shaped bacterium, designated strain PGW1-R01(T), was isolated from fresh water from the Yeongju in the Republic of Korea. The strain grew optimally at 30 °C and at pH 6-8 on R2A agar. The major cellular fatty acids were summed feature 3 [comprising C16 : 1ω7c and/or C16 : 1ω6c (50.2 %) and iso-C15 : 0 (24.8 %)]. The major respiratory quinone was MK-7. The G+C contents were 39.4 mol% and the predominant respiratory quinone was MK-7. Based on 16S rRNA gene phylogeny, the strain belongs to the genus Mucilaginibacter. The strain PGW1-R01(T) was closely related to 'Mucilaginibacter ginsenosidivorax' (96.6 % sequence similarity), Mucilaginibacter lappiensis (96.4 %) and Mucilaginibacter flavus (96.4 %). On the basis of the evidence presented in this study, strain PGW1-R01(T) represents a novel species of the genus Mucilaginibacter, for which the name Mucilaginibacter http://dx.doi.org/10.1601/nm.11437aquaedulcis sp. nov., is proposed. The type strain is PGW1-R01(T)( = KCTC 23942(T) = CECT 8102(T)).
从韩国永川的淡水中分离出一株需氧、革兰氏染色阴性、杆状细菌，命名为菌株PGW1-R01(T)。该菌株在R2A琼脂上于30°C和pH 6-8条件下生长最佳。主要细胞脂肪酸为总和特征3[包含C16 : 1ω7c和/或C16 : 1ω6c(50.2%)以及异-C15 : 0(24.8%)]。主要呼吸醌为MK-7。G+C含量为39.4 mol%，主要呼吸醌为MK-7。基于16S rRNA基因系统发育分析，该菌株属于黏液杆菌属。菌株PGW1-R01(T)与“人参皂苷分解黏液杆菌”(序列相似性为96.6%)、拉普黏液杆菌(96.4%)和黄色黏液杆菌(96.4%)密切相关。根据本研究提供的证据，菌株PGW1-R01(T)代表黏液杆菌属的一个新物种，为此提出名称黏液杆菌水生新种Mucilaginibacter http://dx.doi.org/10.1601/nm.11437aquaedulcis sp. nov.。模式菌株为PGW1-R01(T)(=KCTC 23942(T)=CECT 8102(T))。
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