gen. nov., sp. nov., a prosthecate alphaproteobacterium isolated from fresh water Free

Abstract

A novel Gram-negative bacterium strain, DRW22-8, was isolated from fresh water taken at a depth of 22 m at Daechung Reservoir, Republic of Korea. The cells of strain DRW22-8 were aerobic and motile with a single polar flagellum or non-motile (stalked), and formed creamy-white colonies on R2A agar. The phylogenetic analysis based on 16S rRNA gene sequencing indicated that the strain formed a separate lineage within the order , showing similarity values under 91.8 % with its closest phylogenetic neighbours, , and The chemotaxonomic results showed Q-10 as the predominant respiratory ubiquinone, three unidentified glycolipids, an unidentified lipid and phosphatidylglycerol as the major polar lipids, and C, 11-methyl C, C 7 and/or C 6 as the major fatty acids. The DNA G+C content was 64.4 mol%. The combined genotypic and phenotypic data showed that strain DRW22-8 could be distinguished from all genera within the family and represented a novel genus, gen. nov., with the name sp. nov., in the family . The type strain is DRW22-8 (=KCTC 42356=JCM 30469).

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2017-11-01
2024-03-28
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