1887

Abstract

A Gram-staining-negative, aerobic, non-motile and rod-shaped bacterial strain, designated DPG-21, was isolated from seawater from the South Sea in Korea, and investigated using a polyphasic taxonomic approach. Strain DPG-21 grew optimally at pH 7.0–8.0, at 30 °C and in the presence of 2 % (w/v) NaCl. In a neighbour-joining phylogenetic tree based on 16S rRNA gene sequences, strain DPG-21 clustered with B51 (with a sequence similarity of 97.1 %); the novel strain showed lower 16S rRNA gene sequence similarities (<95.4 %) with the other species included in the tree. The mean DNA–DNA relatedness value between strain DPG-21 and . DSM 19548 was 12 %. The predominant ubiquinones of strain DPG-21 were Q-10 and Q-9 while Cω7 was the strain’s major fatty acid. The polar lipid profile of strain DPG-21 was similar to that of DSM 19548. The genomic DNA G+C content of the novel strain was 69.6 mol%. Some phenotypic properties and the phylogenetic and genetic data indicated that strain DPG-21 was distinct from . and represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is DPG-21 ( = KCTC 23424 = CCUG 60524).

Funding
This study was supported by the:
  • 21C Frontier Program of Microbial Genomics and Applications (Award 11-2008-00-002-00)
  • Program for Collection, Management and Utilization of Biological Resources (Award M10867010003)
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2012-03-01
2024-03-29
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