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Abstract
A novel bacterial strain, designated CJ661T, was isolated from soil of ginseng in Anseong, South Korea. Cells of strain CJ661T were white-coloured, Gram-staining-negative, non-motile, aerobic and rod-shaped. Strain CJ661T grew optimally at 30 °C and pH 7.0. The analysis of 16S rRNA gene sequence of strain CJ661T showed that it belongs to the genus Ramlibacter within the family Comamonadaceae and was most closely related to Ramlibacter ginsenosidimutans KCTC 22276T (98.1 %), followed by Ramlibacter henchirensis DSM 14656T (97.1 %). DNA–DNA relatedness levels of strain CJ661T were 40.6 % to R. ginsenosidimutans KCTC 22276T and 25.0 % to R. henchirensis DSM 14656T. The major isoprenoid quinone was ubiquinone (Q-8). The predominant polar lipids were phosphatidylethanolamine, diphosphatidylglycerol and phosphatidylglycerol. The major cellular fatty acids of strain CJ661T were summed feature 3 (C16 : 1 ω6c and/or C16 : 1 ω7c), C16 : 0 and summed feature 8 (C18 : 1 ω7c and/or C18 : 1 ω6c). The G+C content of the genomic DNA was 65.4 mol%. On the basis polyphasic taxonomic data, strain CJ661T represents a novel species in the genus Ramlibacter , for which name Ramlibacter alkalitolerans sp. nov. is proposed; the type strain is CJ661T (=KACC 19305T=JCM 32081T).
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