Diaphorobacter polyhydroxybutyrativorans sp nov., a novel poly(3-hydroxybutyrate-co-3-hydroxyvalerate)-degrading bacterium isolated from biofilms

文献类型： 外文期刊

第一作者： Qiu, Tianlei

作者： Qiu, Tianlei;Zuo, Zhengyan;Gao, Junlian;Gao, Min;Han, Meilin;Sun, Lijiao;Wang, Xuming;Qiu, Tianlei;Wang, Xuming;Zuo, Zhengyan;Sun, Lijiao;Zhang, Lanhe

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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 ）

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收录情况： SCI

摘要： A novel Gram-stain-negative, facultatively aerobic and rod-shaped strain, designated SL-205(T), was isolated from the biofilms of a denitrifying reactor using poly(3-hydoxybutyrate-co-3-hydroxyvalerate) as the sole carbon source in Beijing, PR China. A polyphasic taxonomic characterization was performed on the novel isolate. Phylogenetic analyses based on the 16S rRNA gene sequence revealed that strain SL-205(T) is a member of the genus Diaphorobacter. High levels of 16S rRNA gene sequence similarity were found between strain SL-205(T) and Diaphorobacter nitroreducens NA1OB(T) (99.4 %) and Diaphorobacter oryzae RF3(T) (98.5 %), respectively. However, the DNA DNA relatedness values between strain SL-205(T) and D. nitroreducens NA1OB(T) and D. oryzae RF3(T) were 57 +/- 1 % and 45 +/- 1.5 %, respectively. The G+C content of the genomic DNA of strain SL-205(T) was 66.8 mol%. The major fatty acids consisted of summed feature 3 (including C-16 :1 omega 7c and/or iso-C-15 :0 2-OH), C-16 :0 and C-18 :1 omega 7c. Ubiquinone Q-8 was the only respiratory quinone; the polar lipid profile comprised phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol and one uncharacterized phospholipid. We conclude that strain SL-205(T) represents a novel species of the genus Diaphorobacter for which the name Diaphorobacter polyhydroxybutyrativorans is proposed; the type strain is SL-205(T) (=ACCC 19739(T)=DSM 29460(T)).

分类号： Q

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