反硝化功能基因——检测反硝化菌种群结构的分子标记

被引:20
作者
梁丽华 [1 ,2 ]
左剑恶 [1 ]
机构
[1] 清华大学环境科学与工程系
[2] 西北大学环境科学系
关键词
反硝化菌; 功能基因; 种群结构;
D O I
10.13344/j.microbiol.china.2009.04.015
中图分类号
X703 [废水的处理与利用];
学科分类号
摘要
反硝化菌种类繁多,且分属多个分类学上的不同种属,故不能利用常规的16SrRNA测序方法对其进行研究。利用编码反硝化酶的功能基因作为分子标记,可以有效研究环境样品中反硝化菌的种群结构、数量以及活性等。本文重点介绍了主要的反硝化功能基因以及常用的扩增引物,分析了反硝化功能基因与16SrRNA系统发育之间的关系,比较了nirS和nirK基因菌的群落分布特征,对目前反硝化功能基因的研究和应用现状进行了综述,讨论了研究中发现的新问题,期望为研究复杂微生物的生态特征提供参考。
引用
收藏
页码:627 / 633
页数:7
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