Gracilibacillus xinjiangensis sp. nov., a new member of the genus Gracilibacillus isolated from Xinjiang region, China |
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Authors: | Na Yang Biao Ren Huanqin Dai Zhiheng Liu Yuguang Zhou Fuhang Song Lixin Zhang |
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Institution: | 1. Chinese Academy of Sciences Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100190, People’s Republic of China 2. Graduate School of Chinese Academy of Sciences (or University of Chinese Academy of Sciences), Beijing, 100049, People’s Republic of China 3. China General Microbiological Culture Collection Center, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, People’s Republic of China
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Abstract: | A Gram-positive, endospore-forming, rod-shaped bacterium, designated isolate J2T was isolated from a soil sample from Xinjiang Uyghur Autonomous Region, China. The isolate was observed to grow at 16–46 °C and pH 6.5–8.0. Chemotaxonomic analysis showed menaquinone-7 (MK-7) to be the major isoprenoid quinone; diphosphatidylglycerol, phosphatidylglycerol, one aminophospholipid, two phosphoglycolipids and one glycolipid as the major cellular polar lipids; and anteiso-C15:0, iso-C15:0, anteiso-C17:0 and C16:0 as the major fatty acids. Comparative analyses of the 16S rRNA gene sequence showed that strain J2T is most closely related to Gracilibacillus ureilyticus (with 98.8 % similarity), Gracilibacillus dipsosauri (97.2 %), Gracilibacillus quinghaiensis (97.1 %) and Gracilibacillus thailandensis (97.0 %). The DNA–DNA reassociation values between strain J2T and G. ureilyticus MF38T, G. dipsosauri DD1T, G. quinghaiensis YIM-C229T and G. thailandensis TP2-8T were 29.8 ± 3.7, 23.0 ± 3.5, 15.8 ± 4.9 and 15.9 ± 5.0 %, respectively. The genomic DNA G+C content of strain J2T was determined to be 36.5 mol%. Based on these data, strain J2T is considered as a novel species of the genus Gracilibacillus, for which the name Gracilibacillus xinjiangensis sp. nov. is proposed. The type species is J2T (= CGMCC 1.12449T = JCM 18859T). |
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