转Bt基因抗虫棉对土壤微生物群落生物多样性的影响
文章导航 > 生态与农村环境学报 > 2011 > 27(1) : 17-22.
李孝刚, 刘标, 徐文华, 等. 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.
引用本文: 李孝刚, 刘标, 徐文华, 等. 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.
LI Xiao-Gang, LIU Biao, XU Wen-Hua, et al. Effect of Transgenic Bt Cotton on Biodiversity of Soil Microbial Community[J]. Journal of Ecology and Rural Environment, 2011, 27(1): 17-22.
Citation: LI Xiao-Gang, LIU Biao, XU Wen-Hua, et al. Effect of Transgenic Bt Cotton on Biodiversity of Soil Microbial Community[J]. Journal of Ecology and Rural Environment, 2011, 27(1): 17-22.
环境保护部南京环境科学研究所
基金项目: 转基因生物新品种培育科技重大专项(2008ZX08012-005);优秀博士学位论文创新基金
详细信息
作者简介:李孝刚(1983-)，男，山东菏泽人，博士生，主要从事转基因生物安全方面的研究。E-mail: sdjnqglxg@163.com
通讯作者:刘标 环境保护部南京环境科学研究所 E-mail: 85287064@163.com
中图分类号: S562
计量 文章访问数: 0969 HTML全文浏览量: 0 PDF下载量: 01760 出版历程 收稿日期: 2010-04-14 刊出日期: 2011-01-24Effect of Transgenic Bt Cotton on Biodiversity of Soil Microbial Community
Nanjing Institute of Environmental Sciences,Ministry of Environmental Protection
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Corresponding author:LIU Biao Nanjing Institute of Environmental Sciences,Ministry of Environmental Protection E-mail: 85287064@163.com
摘要
摘要: 设置非转基因抗虫棉棉田以及分别种植7和10 a转B t基因抗虫棉的棉田3个处理,于2007—2008年棉花苗期、蕾期、花铃期和吐絮期采样测定了土壤中5个微生物种类的数量,以监测长期种植转B t基因抗虫棉对土壤微生物群落生物多样性的影响。结果表明,3种类型棉田土壤细菌、真菌、固氮菌、反硝化细菌、亚硝化细菌数量以及微生物多样性指数在整个棉花生长期内变化趋势基本一致,其中,在棉花蕾期各种微生物数量达到高峰。与种植非转基因抗虫棉相比,不同种植年限转B t基因抗虫棉对土壤细菌、真菌、固氮菌、反硝化细菌、亚硝化细菌数量和微生物多样性指数都无显著影响,但随着采样时间的不同,3种类型棉田土壤各类微生物数量和多样性指数都呈明显季节变化。
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,boll 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 growing 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.
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