Wu Hong-Sheng, Shi Xue, Li Ji, Wu Tian-Yu, Ren Qian-Qi, Zhang Zhen-Hua, Wang Ming-Yan, Shang Xiao-Xia, Liu Yan, Xiao Song-Hua
J Environ Biol. 2016 Jan;37(1):13-9.
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.
通过转基因Bt + CpTI棉花根系分泌物对常规亲本棉花生长和抗氧化活性的影响，进行了一项温室试验，以评估转基因棉花对生态系统和环境的不利影响。结果表明，用不同浓度转基因棉花根系分泌物处理的常规亲本棉花幼苗叶片中还原和氧化物质活性升高。与对照相比，过氧化氢酶增加了14.9%至39.9%，过氧化物酶增加了8.8%至114%，苯丙氨酸解氨酶增加了21.3%至59.7%，抗坏血酸特异性过氧化物酶增加了5.8至19.5倍。然而，常规棉花幼苗的生物量和高度不受任何浓度转基因棉花根系分泌物的影响。这些结果表明，基于根系相互作用，转基因Bt + CpTI棉花植株的种植对常规亲本棉花几乎没有风险。
