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Effects of root exudates of bivalent transgenic cotton (Bt plus CpTI) plants on antioxidant proteins and growth of conventional cotton (Xinluhan 33)

文献类型： 外文期刊

作者： Wu, Hong-sheng 1 ; Shi, Xue 1 ; Li, Ji 1 ; Wu, Tian-yu 3 ; Ren, Qian-qi 1 ; Zhang, Zhen-hua 2 ; Wang, Ming-yan 1 ; Shang, 1 ;

作者机构： 1.Nanjing Univ Informat Sci & Technol, Dept Agr Resources & Environm, Nanjing 210044, Jiangsu, Peoples R China

2.Minist Environm Protect China, Nanjing Inst Environm Sci, Nanjing 210012, Peoples R China

3.Wuhan Inst Bioengn, Dept Biotechnol, Wuhan 430415, Peoples R China

4.Jiangsu Acad Agr Sci, Inst Ind Crops, Nanjing 210014, Jiangsu, Peoples R China

关键词： Antioxidase activity;Risk and biosafety assessment;Root exudates;Transgenic cotton

期刊名称：JOURNAL OF ENVIRONMENTAL BIOLOGY （ 影响因子：0.781； 五年影响因子：0.815 ）

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收录情况： SCI

摘要： A greenhouse experiment was conducted to assess the adverse impact of transgenic cotton on ecosystem and environment via effect of transgenic Bt+CpTI cotton root exudates on growth and antioxidant activity of conventional parental cotton. Results showed. elevated reductive and oxidative species activities in the leaves of conventional parental cotton seedlings treated with varying concentrations of transgenic cotton root exudates. Compared to control, 14.9% to 39.9% increase in catalase, 8.8% to 114% increase in for peroxidase, 21.3% to 59.7% increase in phenylalanine ammonia-lyase and 5.8 to 19.5 fold in ascorbate specific peroxidase was observed. However, biomass and height of conventional cotton seedlings were not affected by any concentration of transgenic cotton root exudates. These results suggested that cultivation of transgenic Bt+CpTI cotton plants poses little risk to conventional parental cotton based on their root interactions.

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