Mucilaginibacter antarcticus sp nov., isolated from tundra soil

作者：Zheng, Ruichen; Zhao, Yiming; Wang, Liqiu; Chang, Xulu; Zhang, Yumin; Da, Xuyang; Peng, Fang^*

来源：International Journal of Systematic and Evolutionary Microbiology, 2016, 66(12): 5140-5144.

DOI：10.1099/ijsem.0.001486

• EMENDED DESCRIPTION
• TREES
• SEQUENCES
• DEFLUVII
• FAMILY
• WATER
• DYE

The novel, pale yellow bacterial strain, designated S14-88(T), was isolated from a tundra soil near Antarctic Peninsula, South Shetland Islands, and its taxonomic position was investigated by a genotypic and phenotypic analysis. Cells were facultatively anaerobic, Gram-stain-negative, non -motile and rod-shaped. Growth occurred at 4-28 degrees C (optimum at 15 degrees C), at pH 7.0-8.0 (optimum at 7.0) and with 0-0.6% (w/v) NaCl (optimum, no NaCl). Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain S14-88(T) formed a lineage within the genus Mucilaginibacter. The 16S rRNA gene sequence similarity between strain S14-88(T) and the type strains of related species ranged from 92.2 to 96.5%, and the 16S rRNA gene sequence of S14-88(T) showed highest similarity of 96.5% to Mucilaginibacter soyangensis HME6664(T). The major cellular fatty acids of strain S14-88(T) were iso-C-15:0 and summed feature 3 (C-16:1 omega 7C and/or C-16:1 omega 6c). The major respiratory quinone was menaquinone MK -7, and the main polar lipid was phosphatidylethanolamine. The DNA G+C content of strain S14-88(T) was 42.3 mol%. On the basis of the evidence presented in this study, strain S14-88(T) is considered to represent a novel species of the genus Mucilaginibacter, for which the name Mucilaginibacter antarcticus sp. nov. is proposed. The type strain is S14-88(T) (=CCTCC AB 2015321(T)=KCTC 52232(T)).

• 出版日期2016-12
• 单位武汉大学