Arenibacter aquaticus sp. nov., a marine bacterium isolated from surface sea water in the South China Sea.

Arenibacter aquaticus sp. nov., a marine bacterium isolated from surface sea water in the South China Sea. Int J Syst Evol Microbiol. 2019 Nov 15;: Authors: Guo J, Sun J, Xu Y, Fang L, Jiao N, Zhang R Abstract A Gram-stain-negative and facultatively anaerobic bacterial strain, designated GUOT, was isolated from surface water collected from the South China Sea. Cells were non-flagellate, yellow, non-spore-forming and rod-shaped. The 16S rRNA gene sequence comparisons with species in the genus Arenibacter showed that strain GUOT shares the highest similarity of 97.5 % with Arenibacter echinorum and Arenibacter palladensis. Average nucleotide identity and digital DNA-DNA hybridization values between strain GUOT and its related type strains were 77.1-78.4% and 20.8-26.2 % respectively. Growth of strain GUOT occurred at 15-50°C (optimum, 20-25°C), pH 5-7.5 (pH 6) and in media containing 0-7 % NaCl (optimum, 0-1 %). Cells contained methanol-soluble yellow-coloured pigments but flexirubin-type pigments were absent. The major fatty acids (>5 %) were iso-C17 : 0 3-OH, iso-C15 : 0, anteiso-C15 : 0, C16 : 0, summed feature 3, iso-C15 : 1 G and iso-C15 : 0 3-OH. The dominant polar lipids comprised phosphatidylethanolamine and some unidentified polar lipids. The main respiratory quinone was menaquinone-6. The DNA G+C content of strain GUOT was 40.1 %. Based on the presented data, we consider strain G...
Source: International Journal of Systematic and Evolutionary Microbiology - Category: Microbiology Authors: Tags: Int J Syst Evol Microbiol Source Type: research