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PCR-DGGE技术在微生物物种多样性研究中的局限性及其解决措施 被引量:32

Overview of Limitation and Improving Methods of PCR-DGGE in Microbial Diversity Study
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摘要 变性梯度凝胶电泳(denaturing gradientg elelectrophoresis,DGGE)技术目前已经成为研究微生物物种多样性和动态变化的分子检测工具之一。该技术不依赖于微生物的分离培养,便能快速、准确地获取复杂样品中微生物的菌群组成及其遗传信息,因此被广泛应用于微生物生态学、食品微生物学等领域。但DGGE技术存在一定的局限性,有时会造成分析结果的偏差。本文简单概述了DGGE技术的基本原理及其在微生物群落分析中的应用,重点对造成DGGE结果偏差的因素,如DNA提取、PCR扩增、DGGE条件以及DGGE图谱分析等进行讨论,并提出相应的解决措施,旨在对DGGE检测结果的分析提供参考。 Polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE) technique has been proven to be a powerful tool for analyzing microbial communities and their dynamics changes. As a fast and reliable molecular method, DGGE is used widely to investigate the microbial component and structure of complex communities without isolation and cukivation processes. However, potential causes resulting in limitations in DGGE analysis can be sometimes met. In this paper, the principle and application aspects, as well as the limitation of DGGE techniques for microbial ecology analysis were introduced, and the main causing factors addressed and discussed, such as DNA extraction, PCR amplification, DGGE conditions optimization, and DGGE profile analysis.
出处 《食品科学》 EI CAS CSCD 北大核心 2008年第5期493-497,共5页 Food Science
基金 国家"863"高技术研究发展计划项目(2006AA10Z344 2006AA10Z321)
关键词 变性梯度凝胶电泳 微生物多样性 微生物生态学 PCR 局限性 DGGE microbial diversity microbial ecology PCR limitations
作者简介 马俊孝(1978-),男,硕士研究生,研究方向为食品微生物学。E-mail:jx·m@mail.sdu.edu.cn 通讯作者:孔健(1964-),女,教授,博士,研究方向为应用微生物。E-mail:kongjian@sdu.edu.cn
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参考文献39

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二级参考文献68

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