Gracilimonas tropica gen. nov., sp. nov., isolated from a Synechococcus culture SCIE SCOPUS

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Gracilimonas tropica gen. nov., sp. nov., isolated from a Synechococcus culture
Choi, D.H.; Zhang, G.I.; Noh, J.H.; Kim, W.-S.; Cho, B.C.
KIOST Author(s)
Choi, Dong Han(최동한)Noh, Jae Hoon(노재훈)Kim, Woong Seo(김웅서)
Publication Year
An irregular, long, rod-shaped marine bacterium, designated CL-CB462T, was isolated from a Synechococcus culture, which was established from surface water from the tropical Pacific Ocean. The physiological and biochemical features, fatty acid profile and phylogenetic position based on 16S rRNA gene sequences were investigated for the novel strain. Phylogenetic analysis of the 16S rRNA gene sequence showed that the closest relatives of strain CL-CB462T were Balneola vulgaris and Balneola alkaliphila. Strain CL-CB462T formed a robust clade with members of the genus Balneola in all phylogenetic trees constructed by three different methods. However, the 16S rRNA gene sequence similarity was very low (91.3-91.5% similarity) and phenotypic and physiological features could clearly differentiate strain CL-CB462T from the genus Balneola. Cells of the novel strain were non-motile and spore-forming. The strain was able to grow at 1-20% (w/v) (optimum of 3-6 %) sea salt concentration, at temperatures of 20-40 °C and between pH 6 and 10. The fatty acids were dominated by 15:0 iso (41.2 %) and 17:1ω9c iso (21.4 %). The DNA G+C content was 42.7 mol%. Based on polyphasic evidence, strain CL-CB462T was considered to represent a new genus. The name Gracilimonas tropica gen. nov., sp. nov. is proposed for the type strain of the type species (CL-CB462T=KCCM 90063T=DSM 19535T). © 2009 IUMS.
Bibliographic Citation
International Journal of Systematic and Evolutionary Microbiology, v.59, no.5, pp.1167 - 1172, 2009
cytosine; guanine; RNA 16S; bacterial DNA; fatty acid; ribosome DNA; RNA 16S; sea water; article; bacterial growth; bacterial strain; bacterium culture; bacterium identification; bacterium isolation; cell structure; controlled study; DNA base composition; DNA content; Gracilimonas tropica; Gram negative bacterium; lipid composition; marine bacterium; molecular genetics; new genus; nonhuman; nucleotide sequence; phenotype; phylogenetic tree; priority journal; sequence analysis; Synechococcus; transport medium; type strain; Bacteroidetes; classification; culture medium; DNA sequence; genetics; growth, development and aging; isolation and purification; microbiology; Pacific Ocean; phylogeny; physiology; RNA gene; species difference; Synechococcus; Bacteria (microorganisms); Synechococcus; Bacterial Typing Techniques; Bacteroidetes; Base Composition; Culture Media; DNA, Bacterial; DNA, Ribosomal; Fatty Acids; Genes, rRNA; Molecular Sequence Data; Pacific Ocean; Phenotype; Phylogeny; RNA, Ribosomal, 16S; Seawater; Sequence Analysis, DNA; Species Specificity; Synechococcus
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