Arenimonas halophila sp nov., isolated from soil

초록

A Gram-staining-negative, aerobic, non-motile, rod-shaped bacterium, designated CAU 1453(T), was isolated from soil and its taxonomic position was investigated using a polyphasic approach. Strain CAU 1453(T) grew optimally at 30 degrees C and at pH 6.5 in the presence of 1 % (w/v) NaCl. Phylogenetic analysis based on the 16S rRNA gene sequences revealed that CAU 1453(T) represented a member of the genus Arenimonas and was most closely related to Arenimonas donghaensis KACC 11381(T) (97.2 % similarity). CAU 1453(T) contained ubiquinone-8 (0-8) as the predominant isoprenoid quinone and iso-C-15 (:) (0) and iso-C-16 (:) (0) as the major cellular fatty acids. The polar lipids consisted of diphosphatidylglycerol, a phosphoglycolipid, an aminophospholipid, two unidentified phospholipids and two unidentified glycolipids. CAU 1453(T) showed low DNA-DNA relatedness with the most closely related strain, A. donghaensis KACC 11381(T) (26.5 %). The DNA G+C content was 67.3 mol%. On the basis of phenotypic, chemotaxonomic and phylogenetic data, CAU 1453(T) represents a novel species of the genus Arenimonas, for which the name Arenimonas halophila sp. nov. is proposed. The type strain is CAU 1453(T) (=KCTC 62235(T)=NBRC 113093(T)).

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