食品科学 ›› 2012, Vol. 33 ›› Issue (9): 154-157.doi: 10.7506/spkx1002-6630-201209032

• 生物工程 • 上一篇    下一篇

3 种提取河豚鱼肠道微生物总DNA 的方法比较

李 丹,潘迎捷,赵 勇,孙晓红*   

  1. 上海海洋大学食品学院,上海水产品加工及贮藏工程技术研究中心
  • 出版日期:2012-05-15 发布日期:2012-05-07
  • 基金资助:
    上海市科委“创新行动计划”部分地方院校计划项目(08390513900); 上海市教育委员会重点学科建设项目资助(J50704);上海市科委工程中心建设基金项目(11DZ2280300)

Comparison of Three Methods for Total DNA Extraction of Intestinal Microorganisms in Puffer Fish

LI Dan,PAN Ying-jie,ZHAO Yong,SUN Xiao-hong*   

  1. (Shanghai Engineering Research Center of Aquatic-Product Processing and Preservation, College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China)
  • Online:2012-05-15 Published:2012-05-07

摘要: 目的:建立一种有效、节约的河豚鱼肠道内容物总DNA提取方法,应用于聚合酶链式反应-变性梯度凝胶电泳(PCR-DGGE)等分子生物学研究。方法:采取苯酚-氯仿-异戊醇抽提法,QIAamp DNA Stool Mini Kit,改良FastDNA SPIN Kit for Soil这3种DNA提取方法,并结合PCR-DGGE技术分析河豚鱼肠道微生物多样性。结果:苯酚-氯仿-异戊醇抽提法与QIAamp DNA Stool Mini Kit提取的DNA量远高于改良FastDNA SPIN Kit for Soil,并且包含的微生物多样性较高。结论:苯酚-氯仿-异戊醇抽提法作为一种有效、节约的DNA提取方法,可应用于肠道微生物多样性研究。

关键词: 肠道内容物, DNA提取, 微生物多样性, 聚合酶链式反应-变性梯度凝胶电泳(PCR-DGGE)

Abstract: Objective: To establish an effective and economical method for total DNA extraction from intestinal contents in puffer fish. Methods: Three DNA extraction methods including phenol-chloroform-isoamyl alcohol extraction method, QIAamp DNA Stool Mini Kit, modified FastDNA SPIN Kit for soil were designed and used in combination with polymerase chain reaction-denatured gradient gel electrophoresis (PCR-DGGE) technique to analyze the microbial diversity in the intestine of puffer fish. Results: Much more DNA and higher microbial diversity were extracted by phenol-chloroform-isoamyl alcohol extraction method and QIAamp DNA Stool Mini Kit compared with modified FastDNA SPIN Kit for soil. Conclusion: Phenol-chloroform-isoamyl alcohol extraction method is an effective and economical method for DNA extraction, and can be applied for studying microbial diversity.

Key words: intestinal contents, DNA extraction, microbial diversity, polymerase chain reaction-denatured gradient gel electrophoresis (PCR-DGGE)

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