Jhaorihella thermophila gen. nov., sp nov., a moderately thermophilic bacterium isolated from a coastal hot spring

Abstract

A beige-coloured, Gram-staining negative, aerobic, non-motile, moderately thermophilic, rod-shaped bacterium, CC-MHSW-1(T), was isolated on Marine Agar 2216 from a water sample from a coastal hot spring on Green Island (Lutao), located off Taituang, Taiwan. 16S rRNA gene sequence analysis demonstrated that the novel strain shared <94% sequence similarity with members of the genera Lutimaribacter, Maritimibacter and Oceanicola. Ubiquinone (Q-10) was the major respiratory quinone and C(18:1)omega 7c was the predominant fatty acid. The predominant polar lipids were phosphatidylcholine, phosphatidylglycerol, phosphatidylethanolamine, diphosphatidylglycerol and unidentified phospholipids and aminolipids. The DNA G C content of strain CC-MHSW-1(T) was 64.7 mol%. On the basis of 16S rRNA gene sequence analysis and the chemotaxonomic and physiological data, strain CC-MHSW-1(T) represents a new genus and species in the family Rhodobacteraceae for which the name Jhaorihella thermophila gen. nov., sp. nov., is proposed. The type strain of the type species is CC-MHSW-1(T) (=JCM 15068(T)=CCM 7767(T)).