常青;郑宇铎;高娜娜;陈莉;丁书茂;

• 1:华中师范大学生命科学学院遗传调控与整合生物学湖北省重点实验室

摘要(Abstract)：

为了初步探讨邻苯二甲酸二乙基己酯(Di-(2-ethylhexyl)phthalate,DEHP)对植物的毒害作用,采用不同浓度的DEHP溶液对蚕豆根部进行处理(终含量0、0.2、2、20、200mg·kg-(1细沙)),检测根尖微核率和对幼苗茎、叶SOD活性的影响.结果表明:对蚕豆根尖进行短期(6h)处理后,各DEHP处理组微核率随DEHP含量的升高呈显著上升趋势(与对照比较,p<0.05或p<0.01).处理7d后,随DEHP含量的升高(0～20mg·kg-(1细沙)),蚕豆幼苗茎、叶SOD活性均呈逐渐升高趋势;DEHP含量在20～200mg·kg-(1细沙)时,SOD活性均略有下降.以上结果表明DEHP对蚕豆种子具有遗传毒性,且能够对蚕豆幼苗产生氧化损伤.

关键词(KeyWords)： 邻苯二甲酸二乙基己酯;蚕豆根尖细胞;微核率;超氧化物歧化酶

Abstract:

Keywords:

基金项目(Foundation): 国家科技支持计划项目(No.2006BAJ02A10)

作者(Author): 常青;郑宇铎;高娜娜;陈莉;丁书茂;

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