重金属、磺酰脲类除草剂的植物基因应答及其交互作用

土壤污染日益成为威胁人类生存的重要问题,而且正呈现出多元化和复杂化的特点。土壤的重金属污染已被重点研究,大量与金属阳离子吸收、分布和解毒相关的通道蛋白、螯合剂以及伴侣蛋白的编码基因被发现和克隆;而土壤的农药污染,特别是磺酰脲类除草剂类污染研究却还主要集中在生理生化水平上。同时,两者复合污染研究更是鲜有报道,总体还处于探索阶段。本文重点将对现阶段重金属与磺酰脲类除草剂单因素的植物基因应答及其复合污染交互作用的研究进展,在基因类型和作用等方面分别进行综合性分析与阐述,并结合环境污染现状和国际研究前沿提出了今后研究的主要方向。

Gene Response and Interaction of Heavy Metal and Sulfonylurea Herbicides in Plant

Soil pollution is increasingly becoming more threatening to humanity,and being in diversification and complication. The heavy metal pollution in soil has been studied very well. A mass of sequences of transporters,chelators and chaperones have been identified,which are involved in the uptake,distribution and detoxification of metal ions; while the research of agricultural chemical pollution is still focusing on the physiology and biochemistry,especially the sulfonylurea herbicides. The research of combined pollution of heavy metals and sulfonylurea herbicides is less reported,and just in exploring phase. In this review,the advances in gene responses and interaction of heavy meatals and sulfonylurea herbicides in plant was analyzed and expounded,and the research trends in the future was proposed according to the present environmental pollution situation and international research fronts.