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Abstract

Three strains (Mok-106, Mok-142 and Mok-143) were isolated from marine sediment samples collected from the coast of Okinawa Island, Japan. On the basis of 16S rRNA gene sequence comparisons, the isolates were affiliated with the family ; and were the closest relatives, having sequence similarities of 93.7 and 93.0 %, respectively. The novel isolates shared high levels of 16S rRNA gene sequence similarity with each other (98.7–99.3 %) and the results of DNA–DNA hybridization indicated that the three strains belong to the same species. The cells were rod-shaped, motile by means of single polar flagellum and formed colonies that produced a rose-coloured pigment within 6 days incubation at 25 °C. The isolates grew in the presence of 0.5–4.0 % (w/v) NaCl and at 15–40 °C. The major fatty acids were iso-13 : 0, iso-15 : 0, 16 : 0, 18 : 17 and summed feature 3 (16 : 17 and/or iso-15 : 0 2-OH). Menaquinone-6, menaquinone-7 and ubiquinone-8 were the major quinones and the major polar lipids were phosphatidylethanolamine and phosphatidylglycerol. The DNA G+C content was 50–51 mol%. Phylogenetic and phenotypic analyses of these isolates suggested that they belong to a novel genus and species of the family , for which the name gen. nov., sp. nov. is proposed. The type strain is Mok-106 (=NBRC 101628=CIP 109284).

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2007-07-01
2019-09-16
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vol. , part 7, pp. 1493 - 1498

Comparison of the polar lipid compositions of strains Mok-106 and a member of the genus

DNA-DNA hybridization values (%) between strains Mok-106 , Mok-142 and Mok-143. [ Combined PDF] (47 KB)



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