No evidence of persistent effects of continuously planted transgenic insect-resistant cotton on soil microorganisms
文献类型: 外文期刊
第一作者: Xiaogang Li
作者: Xiaogang Li;Biao Liu;Jinjie Cui;Doudou Liu;Shuai Ding;Ben Gilna;Junyu Luo;Zhixiang Fang;Wei Cao;Zhengmin Han
作者机构:
关键词: soil;environmental monitoring.;Transgenic insect-resistant cotton;Long-term planting;Microorganism;Internet resource.
期刊名称:PLANT AND SOIL ( 影响因子:4.192; 五年影响因子:4.712 )
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年卷期:
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收录情况: SCI
摘要: Transgenic insect-resistant cotton expressing the Cry1Ac and/or CpTI protein has been released into the environment for commercial cultivation for over a decade in China. In this consecutive 3-year field study (2007-2009), we characterized the microbial populations in two different transgenic cotton fields and one non-transgenic cotton field to assess the environmental impact of long-term cultivation of transgenic insect-resistant plants in credible field conditions. We obtained samples at four different growth stages of cotton (seedling, budding, boll forming and boll opening). The results showed significant seasonal variation in the number of bacteria, fungi, azotobacter, denitrifying bacteria and ammonia-oxidizing bacteria and in diversity indices of microorganisms, but no significant difference in the number of each microbial population or diversity indices attributable to long-term cultivation of transgenic cotton.
分类号: S15
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