乙草胺对玉米中谷胱甘肽转移酶的诱导作用

Acetochlor induction on maize glutathione S-transferase

针对日益严重的除草剂乙草胺药害问题,利用生物化学方法,研究乙草胺浸种处理对不同玉米品种生长发育状况、谷胱甘肽(GSH)含量和谷胱甘肽转移酶(GST)活力的作用。结果表明,乙草胺对不同玉米品种的安全性、GSH含量和GST活力存在差异,其中在乙草胺诱导浓度为40 mg.L-1时,对乙草胺抗性最高的玉米品种自交系Lx347的GSH含量和GST比活力增加量最多,且对叶部的增加作用最为明显。

According to the issues of herbicide acetochlor injury, this study used biochemical methods to research the treatment that maize seeds were soaked in acetochlor inducted growth of different maize varieties, different parts of the glutathione （GSH） content and glutathione S-transferase （GST） activity. The results showed that acetochlor treatment made different maize varieties safety, GSH content and GST activity to be different. Maize inbred lines Ix347 was the highest resistance of acetochlor, when the concentration of acetochlor was 40 rag. L-1, which GSH content and GST activity increased more than the amount of the largest,and the leaves were the most obvious role in promoting.