Anoxybacillus tengchongensis sp. nov. and Anoxybacillus eryuanensis sp. nov., facultatively anaerobic, alkalitolerant bacteria from hot springs
Zhang, Chun-Mei and Huang, Xiao-Wei and Pan, Wen-Zheng and Zhang, Jing and Wei, Kang-Bi and Klenk, Hans-Peter and Tang, Shu-Kun and Li, Wen-Jun and Zhang, Ke-qin,, 61, 118-122 (2011),
doi = https://doi.org/10.1099/ijs.0.020834-0,
publicationName = Microbiology Society,
issn = 1466-5026,
abstract= Two novel thermophilic, spore-forming bacterial strains, T-11T and E-112T, were isolated from hot springs in Tengchong and Eryuan counties of Yunnan province in south-west China. The strains were Gram-stain-positive rods, occurring singly or in chains. Growth of strain T-11T was observed between 30 and 75 °C (optimum 50 °C) and at pH 7–11 (optimum pH 8.5), while the temperature range for strain E-112T was 35–70 °C (optimum 55 °C) and the pH range was 7.0–11.0 (optimum pH 8.0). The DNA G+C contents of strains T-11T and E-112T were 41.1 and 42.6 mol%, respectively. On the basis of 16S rRNA gene sequence similarity, the two strains were shown to be related most closely to Anoxybacillus species. The chemotaxonomic characteristics [predominant isoprenoid quinone menaquinone 7 (MK-7); major fatty acids iso-C15 : 0 and iso-C17 : 0] also supported the affiliation of strains T-11T and E-112T to the genus Anoxybacillus. The results of DNA–DNA hybridization and physiological and biochemical tests allowed genotypic and phenotypic differentiation of strains T-11T and E-112T from Anoxybacillus species with validly published names. Strains T-11T and E-112T therefore represent two novel species, for which the names Anoxybacillus tengchongensis sp. nov. (type strain T-11T =CCTCC AB209237T =KCTC 13721T) and Anoxybacillus eryuanensis sp. nov. (type strain E-112T =CCTCC AB209236T =KCTC 13720T) are proposed.,
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