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Comamonas jiangduensis sp nov., a biosurfactant-producing bacterium isolated from agricultural soil

文献类型： 外文期刊

作者： Sun, Li-Na 1 ; Zhang, Jun 2 ; Chen, Qing 1 ; He, Jian 1 ; Li, Qin-Fen 3 ; Li, Shun-Peng 1 ;

作者机构： 1.Nanjing Agr Univ, Life Sci Coll, Minist Agr, Key Lab Microbiol Engn Agr Environm, Nanjing 210095, Jiangsu, Peoples R China

2.Nanjing Agr Univ, Coll Resources & Environm Sci, Nanjing 210095, Jiangsu, Peoples R China

3.Chinese Acad Trop Agr Sci, Inst Environm & Plant Protect, Danzhou 571737, Peoples R China

期刊名称：INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY （ 影响因子：2.747； 五年影响因子：2.889 ）

ISSN： 1466-5026

年卷期： 2013 年 63 卷

页码：

收录情况： SCI

摘要： A novel biosurfactant-producing strain, designated YW1(T), was isolated from agricultural soil. Its taxonomic position was investigated using a polyphasic approach. The cells were short rods, Gram-negative, non-sporulating and motile. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain YW1(T) was a member of the genus Comamonas, and showed highest sequence similarities to Comamonas aquatica LMG 2370(T) (98.5%), Comamonas kerstersii LMG 3475(T) (97.7%) and Comamonas terrigena LMG 1253(T) (97.7%). Furthermore, DNA DNA hybridization experiments against these three strains gave results that were clearly lower than 70% DNA DNA similarity, and consequently confirmed that this new strain does not belong to a previously described species of the genus Comamonas. The major respiratory quinone was ubiquinone-8. The major fatty acids (>5 %) were C-16:0 (30.1 %), summed feature 3 (C-16:1 omega 6c and/or C-16:1 omega 7c; 25.4%), summed feature 8 (C-18:1 omega 6c and/or C-18:1 omega 7c; 15.3 %), C-17:0 cyclo (7.4%) and C-14:0 (5.8 %). The major polar lipids were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, unknown phospholipids and unknown lipids. Based on the phylogenetic analysis, DNA DNA hybridization, whole-cell fatty acid composition as well as biochemical characteristics, strain YW1(T) was clearly distinguishable from all species of the genus Comamonas with validly published names and should be classified as a representative of a novel species of the genus Comamonas, for which the name Comamonas jiangduensis sp. nov. is proposed. The type strain is YW1(T) (=CCTCC AB 2012033(T)=KACC 16697(T)).

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