As a modem molecular technology, PCR-DGGE is a powerful tool for the analysis of microbial communities, which can be used to study the diversity and dynamics of microbial communities.

• 摘要现代分子生物学技术PCR-DGGE是一种分析微生物群落的有效工具，可以用于研究生态系统中微生物多样性和群落动态性。