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Abstract

An aerobic, Gram-negative, motile, non-pigmented bacterium, strain KMM 3042, isolated from a deep-sea brittle star in the Fiji Sea, was subjected to a polyphasic taxonomic study. Phylogenetic analysis based on 16S rRNA gene sequences revealed marine Mn(II)-oxidizing isolate S185-2B as the closest neighbour of strain KMM 3042 (99.9 % sequence similarity). The two strains formed a distinct lineage within the genus adjacent to the members of the cluster, sharing highest sequence similarity of 97.4 and 97.0 %, respectively, with DSM 17834 and DSM 12071. The DNA–DNA hybridization value (71 %) between strains KMM 3042 and S185-2B confirmed their assignment to the same species. On the basis of phylogenetic analysis, DNA–DNA hybridization and physiological and biochemical characterization, strains KMM 3042 and S185-2B should be assigned to a novel species of the genus , for which the name sp. nov. is proposed. The type strain is KMM 3042 (=NRIC 0729 =JCM 14761).

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2008-03-01
2019-10-17
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Maximum-likelihood tree based on 16S rRNA gene sequences showing relationships of isolate KMM 3042 and S185-2B and species. [PDF](16 KB)

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Two-dimensional thin-layer chromatograms of polar lipids of strain KMM 3042 (a) and S185-2B (b). PE, Phosphatidylethanolamine; PG, phosphatidylglycerol; DPG, diphosphatidylglycerol; APL, aminophospholipid; AL, aminolipid.

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Fatty acid compositions (%) of strains KMM 3042 and SI85-2B and type strains of related species. [PDF](58 KB)

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