1887

Abstract

A Gram-stain-negative, rod-shaped, strictly aerobic, motile bacterial strain, designated TP162, was isolated from a seamount near the Yap Trench in the tropical western Pacific. Phylogenetic analysis based on 16S rRNA gene sequence showed that strain TP162 was related to the genus and had highest 16S rRNA gene sequence similarities with the type strains SE3 (98.2 %), LMEB 39 (97.7 %), k53 (97.4 %) and KMM 3562 (97.2 %). The predominant cellular fatty acids were summed feature 3 (composed of iso-C 2-OH and/or C ω7), C ω8 and C . The quinone system for strain TP162 comprised predominantly ubiquinone-8, and the polar lipid profile contained phosphatidylethanolamine, phosphatidylglycerol, one unidentified phospholipid and four unidentified lipids. The genomic DNA G+C content of strain TP162 was 46.7 mol%. Strain TP162 shared 28 % DNA–DNA relatedness with JCM 18891, 21 % with JCM 15903, 35 % with JCM 17292 and 18 % with LMG 22059. Combined data from phenotypic, chemotaxonomic, phylogenetic and DNA–DNA relatedness studies demonstrated that strain TP162 is a representative of a novel species of the genus , for which we propose the name sp. nov. (type strain TP162=KACC 18554=CGMCC 1.15394).

Keyword(s): deep-sea , Pseudoalteromonas and seamount
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2016-11-01
2022-01-21
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