四种滨海植物根际微生物分布及根际效应研究  

Rhizosphere Effect and Distribution of Microorganisms Related from Four Strand Plants

作　　者：陈永妍[1] 仇慈欢 储秋燕 许平伟[1] 沈新强[1] 刘雪珠[1] 

机构地区：[1]浙江海洋学院海洋科学与技术学院,浙江舟山316000

出　　处：《湖北农业科学》2014年第3期562-564,568,共4页Hubei Agricultural Sciences

基　　金：浙江省大学生新苗人才计划(2012R411001)

摘　　要：采用梯度稀释平板涂布法和MPN法,研究了4种舟山滨海常见植物根际氮素转化及利用功能微生物的动态变化特征和根际效应。结果表明,舟山滨海植物根际氮素转化相关微生物具有明显的根际效应;不同植物根际固氮菌、硝化细菌、钾细菌及氨化细菌数量差异较为明显,其中筛草在细菌总量和根际效应上都有明显优势;季节不同对植物根际4类氮素转化相关微生物的影响不同。The rhizosphere effect and variation characteristics of quantitative distribution of microorganisms related to nitrogen transformation from four strand plants in zhoushan coastal areas were studied using the methods of spread-plate and MPN. The results showed that the rhizosphere effect of microorganisms related to nitrogen transformation from four strand plants was significant. There are slight difference in the quantitative distribution of azotobacteria, nitrifying bacteria, silicate bacteria, and ammonifilation bacteria from the rhizpsphere of four strand plants. Not only the total number of four Microbe Group related to nitrogen transformation but also the rhizosphere effect, Carex kobomugi has obvious advantage in comparison with others. The paper also showed that the effects of season on rhizosphere microorganisms associated with nitrogen transformation were different.

关 键 词：滨海植物 根际微生物 根际效应 氮素转化 

分 类 号：S154.3[农业科学—土壤学]