Dyadobacter tibetensis sp nov, isolated from glacial ice core

• Main Authors: Shen, Liang, Liu, Yongqin, Yao, Tandong, Wang, Ninglian, Xu, Baiqing, Jiao, Nianzhi, Liu, Hongcan, Zhou, Yuguang, Liu, Xiaobo, Wang, Yanan, 沈亮, 焦念志
• Format: Article in Journal/Newspaper
• Language: English
• Published: SOC GENERAL MICROBIOLOGY 2013
• Subjects: DEOXYRIBONUCLEIC-ACID; SOIL; BACTERIA; WATER; ice core
• Online Access: http://dspace.xmu.edu.cn/handle/2288/88869

Global Change Research Program of China [2010CB951404]; Ministry of Science and Technology of the People's Republic of China [2009cb723901]; National Natural Science Foundation of China [41171050, 40871045, 40930526, 40810019001]; MEL Young Scientist Visiting Fellowship [MELRS1022] A Gram-stain-negative, rod-shaped, aerobic, non-motile bacterium, designated Y620-1(T) was isolated from a glacier on the Tibetan Plateau, China. The 16S rRNA gene sequence of the novel isolate shared 93.6-95.1% similarity with type strains of species of the genus Dyadobacter. The major fatty acids of strain Y620-1(T) were summed feature 3 (C-(16:1)omega 7c and/or iso-C-15:0 2-OH), iso-C-15:0, C-16:1 omega 5c and iso-C-17:0 3-OH. The predominant isoprenoid quinone and polar lipid were MK-7 and phosphatidylethanolamine (PE), respectively. The DNA G+C content was 44.4 +/- 0.3 mol% (T-m). Flexirubin-type pigment was produced. The novel isolate was classified in the genus Dyadobacter, but a number of phenotypic characteristics distinguished the novel isolate from type strains of species of the genus Dyadobacter. From these genotypic and phenotypic data, it is evident that strain Y620-1(T) represents a novel species of the genus Dyadobacter, for which the name Dyadobacter tibetensis sp. nov. is proposed. The type strain is Y620-1(T) (=JCM 18589(T)=CGMCC 1.12215(T)).