PCR-RFLP法分析白酒小曲细菌多样性

China Brewing(2012)

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Abstract
采用CTAB法提取白酒小曲细菌总DNA,用细菌通用引物扩增16S rDNA,并构建16S rDNA克隆文库。采用限制性内切酶片段长度多态性(RFLP)技术对16S rDNA文库进行分析,获得76个克隆的酶切指纹图谱。选择酶切带型不同的阳性克隆进行测序并且构建进化树。结果表明,小曲主要细菌种类为黄单胞菌属、沙雷氏菌属、乳杆菌属、木崎氏菌属和片球菌属,其中优势细菌是以戊糖片球菌为主的乳酸菌。
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Key words
PCR-RFLP,Xiaoqu,16S rDNA clone library,Chinese liquor,bacterial diversity
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