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Int J Syst Evol Microbiol 59 (2009), 1286-1289; DOI  10.1099/ijs.0.001420-0
© 2009 International Union of Microbiological Societies

Pseudomonas xinjiangensis sp. nov., a moderately thermotolerant bacterium isolated from desert sand

Ming Liu, Xuesong Luo, Lei Zhang, Jun Dai, Yang Wang, Yali Tang, Jing Li, Tongjun Sun and Chengxiang Fang

College of Life Sciences, Wuhan University, Wuhan 430072, PR China

Correspondence
Chengxiang Fang
cxfang{at}whu.edu.cn

A yellow-pigmented, moderately thermotolerant bacterial strain, designated S3-3T, was isolated from desert sand in Xinjiang province, China, and subjected to a polyphasic taxonomic characterization. This isolate was Gram-negative, aerobic and motile. Phylogenetic analyses based on the 16S rRNA gene sequence showed that strain S3-3T is phylogenetically affiliated to the genus Pseudomonas. Strain S3-3T exhibited levels of 16S rRNA gene sequence similarity of less than 96.3 % to the type strains of all Pseudomonas species, making it clear that strain S3-3T represents a species that is separate from previously recognized Pseudomonas species. Its major fatty acids were summed feature 8 (C18 : 1{omega}6c and/or C18 : 1{omega}7c), summed feature 3 (C16 : 1{omega}7c and/or iso-C15 : 0 2-OH) and C19 : 0 cyclo {omega}8c. The major isoprenoid quinone was Q-9. The DNA G+C content was 60.9 mol%. On the basis of phylogenetic, phenotypic and chemotaxonomic analysis, strain S3-3T should be classified within a novel species of the genus Pseudomonas, for which the name Pseudomonas xinjiangensis sp. nov. is proposed. The type strain is S3-3T (=CCTCC AB 207151T =NRRL B-51270T).

Abbreviations: PHB, poly-β-hydroxybutyrate

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain S3-3T is EU286805.






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