期刊
ANTONIE VAN LEEUWENHOEK INTERNATIONAL JOURNAL OF GENERAL AND MOLECULAR MICROBIOLOGY
卷 104, 期 6, 页码 1143-1150出版社
SPRINGER
DOI: 10.1007/s10482-013-0036-9
关键词
Dongia rigui; Novel species; Wetland freshwater
类别
资金
- Center for Analytical Research of Disaster Science of the Korea [C3373A]
- National Institute of Biological Resources (NIBR) under the Ministry of Environment, Republic of Korea
A motile, curved to twisted rod-shaped aerobic bacterium, designated strain 04SU4-P-T, was isolated from freshwater collected from the Woopo wetland (Republic of Korea). Cells were observed to be Gram-stain negative, catalase negative and oxidase positive. The major fatty acids (> 10 % of the total) were identified as C-19:0 omega 8c cyclo (24.6 %), C-16:0 (24.3 %) and C-18:1 omega 7c (13.1 %). The DNA G+C content was determined to be 71.5 mol%. The major polar lipids were identified as phosphatidylglycerol, phosphatidylethanolamine, one unknown phospholipid and one unknown aminolipid. The major ubiquinone was determined to be Q-10. A phylogenetic tree based on 16S rRNA gene sequences showed that strain 04SU4-P-T forms an evolutionary lineage within the genus Dongia and its nearest neighbour is Dongia mobilis LM22(T) (98.0 % sequence similarity). Genomic DNA-DNA hybridization of stain 04SU4-P-T with D. mobilis LM22(T) showed relatedness of only 34.2 %. The phenotypic characteristics indicate the strain 04SU4-P-T can be distinguished from the sole member of the genus Dongia. On the basis of the data presented in this study, strain 04SU4-P-T represents a novel species, for which the name Dongia rigui is proposed. The type strain is 04SU4-P-T (KCTC 23341(T) = JCM 17521(T)).
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