Title Virgibacillus xinjiangensis sp. nov., Isolated from a Salt Lake of Xin-jiang Province in China
Author Che Ok Jeon1, Jeong Myeong Kim1, Dong-Jin Park2, Li-Hua Xu3, Cheng-Lin Jiang3, and Chang-Jin Kim2*
Address 1Department of Life Science, Chung-Ang University, Seoul 156-756, Republic of Korea, 2Korea Research Institute of Bioscience and Biotechnology, Daejeon 305-333, Republic of Korea, 3Yunnan Institute of Microbiology, Yunnan University, Kunming, Yunnan 650091, P. R. China
Bibliography Journal of Microbiology, 47(6),705-709, 2009,
Key Words Virgibacillus xinjiangensis sp. nov., halotolerant, Gram-positive
Abstract A strictly aerobic Gram-positive, moderately halophilic spore forming bacterium, designated strain SL6-1T, was isolated from a salt lake in Xin-jiang province, China. Growth of strain SL6-1T was observed at NaCl concentrations of 0~20% (w/v) (the optimum being 5~7%, w/v). The peptidoglycan type of strain SL6-1T was A1γ-meso-diaminopimelic acid and its major cellular fatty acids were iso-C14:0 and iso-C16:0 and anteiso-C15:0. The major respiratory isoprenoid quinone was MK-7 and the G+C content of the genomic DNA was 44.5 mol%. The major cellular phospholipids were phosphatidylglycerol and diphosphatidylglycerol. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain SL6-1T formed a phylogenetic lineage within the genus Virgibacillus. Based on 16S rRNA gene sequence similarity, the strain was most closely related to Virgibacillus olivae E308T, Virgibacillus kekensis YIM kkny16T, Virgibacillus marismortui DSM 12325T with 97.1%, 97.1%, and 97.0% gene sequence similarities, respectively and the sequence similarities to other related taxa were less than 96.7%. The DNA relatedness values between strain SL6-1T and V. olivae E308T, V. kekensis YIM kkny16T, V. marismortui DSM 12325T were 16.7%, 51.0%, and 22.8%, respectively. On the basis of physiological, biochemical and phylogenetic properties, strain SL6-1T represents a novel species, for which the name Virgibacillus xinjiangensis sp. nov. is proposed. The type strain is SL6-1T (=KCTC 13128T =DSM 19031T).