文献类型： 外文期刊
作者： Wang, Wei 1 ; Ji, Xiaofeng 1 ; Yuan, Cui 1 ; Dai, Fangqun 1 ; Zhu, Jiancheng 1 ; Sun, Mi 1 ;
作者机构： 1.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao 266071, Peoples R China
2.Yellow Sea Fisheries Res Inst, Marine Prod Resource & Enzyme Engn Lab, Qingdao 266071, Shandong, Peoples R China
关键词： Hydrogen peroxidase;Marine bacteria;PCR-RFLP method;Surface seawater
期刊名称：INDIAN JOURNAL OF MICROBIOLOGY （ 影响因子：2.461； 五年影响因子：2.259 ）
ISSN：
年卷期：
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收录情况： SCI
摘要： Catalase plays an important role in the metabolism of marine bacteria and has potential impact on the marine environment. Four PCR primers were designed to amplify the catalase gene fragments in marine bacteria by applying metagenomic DNA from Yellow Sea surface water as the template. Of the four reproducible target PCR products, the longest one with 900 bp were chosen for catalase gene library construction by the T-vector and the white Escherichia coli colonies in the library was screened through restriction-digesting the reamplified insert fragments by the selected restriction endonuclease MboI, and then the bands of the resulting products were displayed in the agarose gel by electrophoresis. The unique restriction fragment length polymorphism (RFLP) pattern was selected and the corresponding catalase gene fragments were sequenced, which verified that every unique RFLP pattern represented one type of catalase. This PCR-RFLP method above was established to investigate the bacterial catalase diversity in seawater.
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