Thalassobius abyssi sp. nov., a marine bacterium isolated from cold-seep sediment.
Int J Syst Evol Microbiol
; 66(2): 574-579, 2016 Feb.
Article
em En
| MEDLINE
| ID: mdl-26554730
ABSTRACT
A novel marine bacterial strain, designated JAMH 043T, was isolated from cold-seep sediment in Sagami Bay, Japan. Cells were Gram-stain-negative, rod-shaped, non-motile and aerobic chemo-organotrophs. The isolate grew optimally at 25 °C, at pH 7.0-7.5 and with 3 % (w/v) NaCl. The major respiratory quinone was ubiquinone-10 (Q-10). The predominant fatty acid was C18 1ω7c. On the basis of 16S rRNA gene sequence analysis, the isolated strain was closely affiliated to members of the genus Thalassobius in the class Alphaproteobacteria, and 16S rRNA gene sequence similarity of the novel isolate with the type strain of its closest related species, Thalassobius aestuarii JC2049T, was 98.4 %. The DNA G+C content of the novel strain was 58.0âmol%. The hybridization values for DNA-DNA relatedness between strain JAMH 043T and reference strains belonging to the genus Thalassobius were less than 14.1 ± 2.2 %. Based on differences in taxonomic characteristics, the isolated strain represents a novel species of the genus Thalassobius, for which the name Thalassobius abyssi sp. nov. is proposed. The type strain is JAMH 043T ( = JCM 30900T = DSM 100673T).
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2016
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Article