%0 Journal Article %A Matsuyama, Hidetoshi %A Minami, Hideki %A Kasahara, Hirokazu %A Kato, Yoshihisa %A Murayama, Masafumi %A Yumoto, Isao %T Pseudoalteromonas arabiensis sp. nov., a marine polysaccharide-producing bacterium %D 2013 %J International Journal of Systematic and Evolutionary Microbiology, %V 63 %N Pt_5 %P 1805-1809 %@ 1466-5034 %R https://doi.org/10.1099/ijs.0.043604-0 %I Microbiology Society, %X A novel exopolysaccharide-producing bacterium, designated strain k53T, was isolated from sediment from the Arabia Sea, Indian Ocean. The strain was Gram-negative, motile, strictly aerobic, oxidase-positive and catalase-positive, and required Na+ for growth. Its major isoprenoid quinone was ubiquinone-8 (Q-8), and its cellular fatty acid profile mainly consisted of C16 : 1ω7c, C16 : 0 and C18 : 1ω7c. The DNA G+C content was 43 mol%. 16S rRNA gene sequence analysis suggested that strain k53T is a member of the genus Pseudoalteromonas . Strain k53T exhibited close phylogenetic affinity to Pseudoalteromonas lipolytica LMEB 39T (98.0% 16S rRNA gene sequence similarity) and Pseudoalteromonas donghaensis HJ51T (97.3 %).The DNA–DNA reassociation values between strain k53T and P. lipolytica JCM 15903T and P. donghaensis LMG 24469T were 17 % and 12 %, respectively. Owing to the significant differences in phenotypic and chemotaxonomic characteristics, and phylogenetic analysis based on the 16S rRNA gene sequence and DNA–DNA relatedness data, the isolate merits classification as a representative of a novel species, for which the name Pseudoalteromonas arabiensis is proposed. The type strain of this species is k53T ( = JCM 17292T = NCIMB 14688T). %U https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/ijs.0.043604-0