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INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY logo International Journal of Systematic and Evolutionary Microbiology

Volume 59, Issue 5

gen. nov., sp. nov., isolated from a culture Free

Abstract

An irregular, long, rod-shaped marine bacterium, designated CL-CB462, was isolated from a 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-CB462 were and . Strain CL-CB462 formed a robust clade with members of the genus 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-CB462 from the genus . 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 : 19 iso (21.4 %). The DNA G+C content was 42.7 mol%. Based on polyphasic evidence, strain CL-CB462 was considered to represent a new genus. The name gen. nov., sp. nov. is proposed for the type strain of the type species (CL-CB462=KCCM 90063=DSM 19535).

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Keyword(s): ASW, artificial seawater
© SGM
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2009-05-01
2025-04-26
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Gracilimonas tropica gen. nov., sp. nov., isolated from a Synechococcus culture
Int J Syst Evol Microbiol 59, 1167 (2009); https://doi.org/10.1099/ijs.0.005512-0
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