土壤细菌DNA提取及多样性分析的T-RFLP方法

A New Method of Soil Bacterial DNA Extraction and T-RFLP Analysis for Diversity

摘要:

获得高质量的土壤总DNA是土壤细菌生态学的关键步骤之一。实验通过综合应用两个试剂盒(Soilmaster kit和DNA IQTM系统)的优点进行土壤样品总DNA的提取, 结果证明该方法是一种快速、有效、灵敏、稳定的土壤DNA提取方法。另外尝试将16S rDNA 序列和T-RFLP(Terminal restriction fragment length polymorphism)技术引入土壤细菌DNA群落多样性的研究中, 证明T-RFLP是一种有力的土壤细菌多样性分析工具。

Abstract:

Obtaining soil bacterial DNA of good quality is a key step in soil bacterial ecology study. A quick, efficient, sensitive and stably method of DNA extraction from soil were established by combining strongpoints of two kits ( Soilmaster kit and DNA IQTM kit). In addition, the 16S rDNA gene and T-RFLP (Terminal restriction fragment length polymorphism) were used in the analysis of soil bacterial community diversity and the result show that T-RFLP is a powerful tool for bacterial community study.