生态与农村环境学报2011，Vol.27Issue(1)：17-22,6.
转Bt基因抗虫棉对土壤微生物群落生物多样性的影响
Effect of Transgenic Bt Cotton on Biodiversity of Soil Microbial Community.
摘要
Abstract
Transgenic Bt cotton has been released into the environment commercially for over 10 years in China,and its influence on soil microbes is an important part of biosafety research. To monitor impact of long-term cultivation of transgenic Bt cotton on diversity of soil microbial community, one cotton field where non-transgenic had been planted all along and other two cotton fields where transgenic Bt cotton had been planted for seven and ten years, respectively, were selected and soil samples were taken from these fields at four different cotton growth stages, namely, seedling, budding, bell forming and boll opening stage during 2007 and 2008. Results show that the populations of bacteria, fungi, azotobacter, denitrobacteria, nitrosobacteria and the diversity indices of microbes have a similar variation pattern during the cotton 8rowing period in three cotton fields and their populations peaked at the budding stage. There was no significant difference in population and diversity index of soil microbes between the two transgenic Bt cotton fields different in cultivation history, but significant seasonal variation of the populations and diversity indices of the microbes were observed in all the three cotton fields.关键词
转Bt基因抗虫棉/长期种植/土壤/微生物/环境监测Key words
transgenic Bt cotton/ long-term planting/ soil/ microorganism/ environmental monitoring分类
资源环境引用本文复制引用
李孝刚,刘标,徐文华,曹伟,方志翔,刘蔸蔸,贺昭和,韩正敏..转Bt基因抗虫棉对土壤微生物群落生物多样性的影响[J].生态与农村环境学报,2011,27(1):17-22,6.基金项目
转基因生物新品种培育科技重大专项(2008ZX08012-005) （2008ZX08012-005）
优秀博士学位论文创新基金 （）
