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
作者： Qiu, Tianlei 1 ; Zuo, Zhengyan 1 ; Gao, Junlian 1 ; Gao, Min 1 ; Han, Meilin 1 ; Sun, Lijiao 1 ; Zhang, Lanhe 4 ; Wang, X 1 ;
作者机构： 1.Beijing Acad Agr & Forestry, Beijing Agrobiotechnol Res Ctr, Beijing 100097, Peoples R China
2.Beijing Key Lab Agr Genet Resources & Biotechnol, Beijing 100097, Peoples R China
3.Northeast Dianli Univ, Sch Chem Engn, Jilin 132012, Peoples R China
4.Northeast Dianli Univ, Sch Chem Engn, Jilin 132012, Peoples R
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)).
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