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KMID : 0880220130510020258
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Journal of Microbiology
2013 Volume.51 No. 2 p.258 ~ p.261
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Rhodanobacter umsongensis sp. nov., isolated from a Korean ginseng field
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Kim Yi-Seul
Kim Soo-Jin
Weon Hang-Yeon
Kwon Soon-Wo
Rangasamy Anandham
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Abstract
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A bacterial isolate designated GR24-2T was isolated from Korean soil used for cultivating ginseng (Panax ginseng C. A. Meyer). The strain was aerobic, Gram-negative, motile, and rod-shaped. It grew optimally at 28?30°C, pH 7.0, and in a range of 0?1% NaCl. Phylogenetically, the strain clustered with members of the genus Rhodanobacter. The strain exhibited the highest sequence similarities (>98%) with R. panaciterrae LnR5-47T (98.4%), R. soli DCY45T (98.2%), and R. ginsengisoli GR17-7T (98.0%). However, it also showed high sequence similarities (>97%) with some other Rhodanobacter and Dyella species. The strain contained Q-8 as the predominant respiratory quinone. The major fatty acids (greater than 10% of the total fatty acids) were iso-C17:1ω9c (24.5%), iso-C16:0 (22.8%), anteiso-C15:0 (10.5%), and iso-C15:0 (10.1%). Its major polar lipids were phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol, and an unknown aminophospholipid. The DNA G+C content of strain GR24-2T was 65.6 mol%. The strain showed less than 70% DNA relatedness values between the closely related Rhodanobacter and Dyella species. The phylogeny, phenotype, DNA-DNA hybridization, and chemotaxonomic data generated in this study reveal that the isolate is a novel species of the genus Rhodanobacter. The name proposed for this strain is Rhodanobacter umsongensis sp. nov. (type strain GR24-2T =KACC 12917T =DSM 21300T).
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KEYWORD
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Rhodanobacter umsongensis, 16S rRNA gene sequence, taxonomy
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