Chryseobacterium taihuense sp. nov., isolated from a eutrophic lake, and emended descriptions of the genus Chryseobacterium, Chryseobacterium taiwanense, Chryseobacterium jejuense and Chryseobacterium indoltheticum----中国科学院微生物研究所

科研成果

论文题目:	Chryseobacterium taihuense sp. nov., isolated from a eutrophic lake, and emended descriptions of the genus Chryseobacterium, Chryseobacterium taiwanense, Chryseobacterium jejuense and Chryseobacterium indoltheticum
作者:	Wu Yu-Fan, Wu Qing-Long, Liu Shuang-Jiang
联系作者:	Liu Shuang-Jiang
刊物名称:	International journal of systematic and evolutionary microbiology
期:	Pt 3
卷:	63
页:	913-9
年份:	2013
影响因子:	2.438
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摘要:	Bacterial strain THMBM1 was isolated from decomposing algal scum that was collected during an algal bloom in Lake Taihu, Wuxi City, Jiangsu Province, China. Cells of strain THMBM1 were Gram-negative, facultatively anaerobic, non-motile rods. Colonies on tryptic soy agar were translucent and shiny with entire edges; yellow flexirubin-type pigments were produced. Growth was observed at 15-45 degrees C (optimum 30-37 degrees C), at pH 5.0-9.0 (optimum pH 8.0) and in the presence of 0-4.0 % (w/v) NaCl (optimum 0-1.0 %). Strain THMBM1 contained MK-6 as the sole respiratory quinone and sym-homospermidine as the predominant polyamine. The predominant cellular fatty acids were iso-C (53.2 %), iso-C 3-OH (15.6 %) and iso-Comega9c (11.9 %). The polar lipid profile consisted of phosphatidylethanolamine and five unidentified lipids. The DNA G+C content was 36.8 mol% (T). Strain THMBM1 was closely related to members of the genus Chryseobacterium, with 16S rRNA gene sequence similarities ranging from 92.9 to 97.2 %, the highest sequence similarities being with Chryseobacterium taiwanense BCRC 17412 (97.2 %) and C. gambrini 5-1St1a (97.1 %). DNA-DNA relatedness between strain THMBM1 and C. taiwanense JCM 21767 and C. gambrini DSM 18014 was 34.1 and 23.0 %, respectively. Based on these results, it is concluded that strain THMBM1 represents a novel species, for which the name Chryseobacterium taihuense sp. nov. is proposed. The type strain is THMBM1 ( = CGMCC 1.10941 = NBRC 108747). Emended descriptions of the genus Chryseobacterium and C. taiwanense, C. jejuense and C. indoltheticum are also proposed.