Caldalkalibacillus thermarum gen. nov., sp. nov., a novel alkalithermophilic bacterium from a hot spring in China
Xue, Yanfen and Zhang, Xinqi and Zhou, Cheng and Zhao, Yueju and Cowan, Don A. and Heaphy, Shaun and Grant, William D. and Jones, Brian E. and Ventosa, Antonio and Ma, Yanhe,, 56, 1217-1221 (2006),
doi = https://doi.org/10.1099/ijs.0.64105-0,
publicationName = Microbiology Society,
issn = 1466-5026,
abstract= A thermophilic, alkaliphilic and catalase-positive bacterium, designated strain HA6T, was isolated from a hot spring in China. The strain was aerobic and chemo-organotrophic and grew optimally at 60 °C, pH 8.5 and 1.5 % (w/v) NaCl. The cells were Gram-positive rods, forming single terminal endospores. The predominant cellular fatty acids were iso-C15 : 0 and iso-C17 : 0. The cell-wall peptidoglycan contained meso-diaminopimelic acid. The genomic DNA G+C content was 45.2 mol%. Phylogenetic analysis based on the 16S rRNA gene sequence revealed that strain HA6T formed a distinct lineage within the family Bacillaceae and was most closely related to Bacillus horti K13T and Bacillus smithii DSM 4216T, with sequence similarities of 91.8 and 93.1 %, respectively. On the basis of its physiological and molecular properties, strain HA6T should be placed in a novel genus and species, for which the name Caldalkalibacillus thermarum gen. nov., sp. nov. is proposed. The type strain of Caldalkalibacillus thermarum is strain HA6T (=CGMCC 1.4242T=JCM 13486T).,
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