Marinospirillum alkaliphilum sp nov., a new alkaliphilic helical bacterium from Haoji soda lake in Inner Mongolia Autonomous Region of China

作者：Zhang WZ; Xue YF; Ma YH^*; Grant WD; Ventosa A; Zhou PJ

来源：Extremophiles, 2002, 6(1): 33-37.

DOI：10.1007/s007920100219

• Marinospirillum alkaliphilum sp nov.
• helical bacteria
• DNA-DNA hybridization
• Phylogeny
• soda lake
• alkaliphile

A new helical, alkaliphilic, gram-negative, Zn chemoorganotrophic bacterium designated strain Z4(T) was isolated from Haoji soda lake in Inner Mongolia Autonomous Region, China. The isolate grows at salinities between 0.2% and 5.0% (w/v) NaCl and pH range 7.0-11.0, with an optimum at 2.0% (w/v) NaCl and pH 9.5. Its growth temperature ranges from 8degrees to 49degreesC with an optimum at 37degreesC. The G+C content of the DNA is 46.8 mol%. The major isoprenoid quinone is ubiquinone 8 (Q-8). Phylogenetic analyses based on 16S rDNA sequence comparison indicates that strain Z4(T) is a member of the genus Marinospirillum. Phenotypic features and DNA-DNA homology of less than 20% with the described species of Marinospirillum support the view that strain Z4(T) represents a new species of the genus Marinospirillum. Strain Z4(T) (= AS 1.2746) is proposed as the type strain of a new species, named Marinospirillum alkaliphilum sp. nov.

• 出版日期2002-2
• 单位中国科学院微生物研究所