农业环境科学学报2011，Vol.30Issue(5)：973-978,6.
霍甫水丝蚓(Limnodrilus hoffmeisteri)扰动对表层沉积物细菌群落结构和多样性的影响
The Influence of Limnodrilus hoffmeisteri Bioturbation on the Bacterial Community Composition and Diversity in Surface Sediment
摘要
Abstract
To better understand the effect of Limnodrilus hoffmeisteri on bacterial community composition and diversity in the surface sediment, sediment-water microcosms experiments were constructed by simulating natural distribution of Limnodrilus hoffmeisteri in Meiliang Bay, Lake Taihu.Terminal restriction fragment length polymorphism(T-RFLP) was applied to analyze the dynamics of bacterial community in surface sediment samples with Limnodrilus hoffmeisteri distribution and control groups.Results showed that no significant difference of bacterial community structure was detected between the treatments and controls(P＞0.05 ) along the sampling times.Therefore, we conjectured that the bioturbation driven by Limnodrilus hoffmeisteri didn' t play a major role on bacterial community composition and diversity in surface sediment in Meiliang Bay.Furthermore, at latter period of the experiments, 206 bp and 370 bp of T-RFs assigned to genus of Nitrosomonas,ammonia-oxidizing bacteria( AOB ) appeared, which indicating there may be a suitable niche for this functional group.关键词
生物扰动/细菌群落结构/多样性/末端限制性片段长度多态性/氨氧化细菌Key words
bioturbation/ bacterial community composition/ diversity/ T-RFLP/ ammonia-oxidizing bacteria(AOB)分类
资源环境引用本文复制引用
郭亮,姚思鹏,邢鹏..霍甫水丝蚓(Limnodrilus hoffmeisteri)扰动对表层沉积物细菌群落结构和多样性的影响[J].农业环境科学学报,2011,30(5):973-978,6.基金项目
国家重点基础研究发展规划(2008CB418104) （2008CB418104）
中国科学院知识创新工程重大项目(KZCX1-YW-14-1) （KZCX1-YW-14-1）
