Two aerobic, Gram-negative, orange pigmented and irregular rod-shaped bacteria, designated S1-05 and S1-08T, were isolated from seawater from the Pacific Ocean. Phylogenetic analysis based on their 16S rRNA gene sequences revealed that the novel isolates could be affiliated with the genus Nonlabens of the family Flavobacteriaceae. The strains S1-05 and S1-08T shared 100 % pairwise sequences similarity with each other and showed less than 96.8 % similarity with the cultivated members of the genus Nonlabens. The novel isolates are phenotypically and physiologically different from strains described previously. The strains were found to be non-motile, oxidase positive, catalase positive and hydrolyzed gelatin and aesculin. The G+C contents of the DNA were determined to 41.4 and 41.7 mol% and MK-6 the predominant menaquinone. Anteiso-C15:0 and iso-C15:0 were found to be the major two cellular fatty acids. On the basis of polyphasic taxonomic studies, it was concluded that strains S1-05 and S1-08T represent a novel species within the genus Nonlabens, for which the name Nonlabens marina sp. nov. is proposed. The type strain of N. marina is S1-08T (=KCTC 23432T = NBRC 107738T).
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We are grateful to the officers and crews of the R/V Mirai [JAMSTEC] for their assistance and support in sample collection.
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Park, S., Yoshizawa, S., Chiura, H.X. et al. Nonlabens marina sp. nov., a novel member of the Flavobacteriaceae isolated from the Pacific Ocean. Antonie van Leeuwenhoek 102, 669–676 (2012). https://doi.org/10.1007/s10482-012-9765-4
- Nonlabens marina sp. nov.
- Polyphasic taxonomy