Altererythrobacter salegens sp nov., a slightly halophilic bacterium isolated from surface sediment

A Gram-negative, rod-shaped and slightly halophilic bacterium, strain XY-R17(T), was isolated from the surface sediment of Mai Po Inner Deep Bay Ramsar Site birdwatch in Hong Kong. The 16S rRNA gene sequence of strain XY-R17(T) exhibited a 96.5% similarity to that of the type strain Altererythrobacter atlanticus. Optimal growth occurred at pH 7.0-7.5, 3-8%(w/v) NaCl, 30 degrees C. The major respiratory quinone was Ubiquinone-10. The principal fatty acids were summed feature 8 (C-18:(1)omega 7Ac and/or C18:(1)omega 6c), summed feature 3 (C16:(1)omega 7c and/or C16:(1)omega 6c) and 11-methyl C18:(1)omega 7c. Its major polar lipid profile comprised sphingoglycolipid, phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol, phosphatidylcholine and two unknown lipids. The DNA G+C content was 64.7 mol%. Based on its phenotypic properties, chemotaxonomic characteristics, along with its phylogenetic distinctiveness, strain XY-R17(T) should be designated as a novel species within the genus Altererythrobacter. Therefore the name Altererythrobacter salegens sp. nov. (type strain XY-R17(T)=KCTC 52267(T)=MCCC 1K01500(T)) is proposed.