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Abstract
An aerobic, Gram-negative, non-fermentative, rod-shaped, motile, non-pigmented bacterium, KMM 1406T, was isolated from a sample of Pacific deep sea water and investigated for phenotypic characteristics, chemotaxonomic features and phylogenetic relationships. The deep-sea isolate exhibited growth in 0–8 % (w/v) NaCl and at 4–37 °C, hydrolytic activity on gelatin, Tween 80 and starch and lack of d-glucose utilization. The major fatty acids were C16 : 0, C16 : 1 ω9c, C17 : 1 ω8c and C18 : 1 ω7c. The DNA G+C content was 49·6 mol%. 16S rRNA gene sequence analysis revealed that strain KMM 1406T was related closely to Rheinheimera baltica DSM 14885T within the γ-Proteobacteria, with 96·8 % sequence similarity. On the basis of phenotypic and molecular data, a novel species, Rheinheimera pacifica sp. nov., is proposed. The type strain is KMM 1406T (=IAM 15043T=JCM 12090T=NRIC 0539T=CCUG 46544T).
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