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Abstract

A yellow-coloured, rod-shaped, Gram-reaction-negative and aerobic bacterial strain, designated JC2675, was isolated from a seawater sample from Jeju Island, Korea. The isolate required sea salts for growth. Gliding motility was observed. Flexirubin-type pigments were absent. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain JC2675 represented a distinct phyletic line that reflected a novel generic status within the family with relatively low gene sequence similarities (<95.7 %) to other recognized genera. The predominant isoprenoid quinone (MK-6) and DNA G+C content (30 mol%) were consistent with the assignment of the novel strain to the family , but overall phenotypic traits demonstrated that the novel strain was not closely affiliated with any previously described genus. Based on data from a study using a polyphasic taxonomic approach, it is proposed that strain JC2675 represents a new genus and novel species belonging to the family , for which the name gen. nov., sp. nov. is proposed. The type strain of the type species is JC2675 ( = KACC 14153 = JCM 17107).

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2011-10-01
2020-01-29
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vol. , part 10, pp. 2475 - 2481

Phylogenetic trees based on 16S rRNA gene sequences of the family . The numbers at the nodes are percentages of bootstrap support from 1000 resampled datasets or posterior probabilities from 30 000 000 generations with a burn-in of 100 000. NCTC 11637 (GenBank no. Z25741) was used as an outgroup. (a) Neighbour-joining tree. (b) Maximum-likelihood tree. (c) Bayesian tree.

Transmission electron micrograph of strain JC2675 . Cells were grown on MA at 30°C for 2 days. Bar, 0.2 µm.

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