摘要
以小麦为材料,用400×g、800×g、1 200×g的超重力对刚萌动的小麦种子分别逆境处理0.5h、1h,测定其丙二醛(MDA)含量及过氧化氢酶(CAT)活性的变化。结果表明:在相同重力条件下,缩短处理时间可以降低MDA含量,降低膜脂过氧化水平,其中400×g 0.5h处理比400×g1h处理的MDA含量降低了1%,800×g 0.5h处理的MDA含量比800×g 1h降低了2%,1 200×g 0.5h处理的MDA含量比1 200×g 1h降低了0.5%。在一定范围内,减小重力,缩短时间可以提高小麦幼苗的CAT活性,其中400×g 0.5h处理的CAT活性比对照提高45%。
The malon-dialdehyde（MDA） content and the catalase（CAT） activity of wheat seedlings were measured under hypergravity of 400×g,800×g,and 1 200×g separately for 0.5 h and 1 h.The results showed that under the same gravity conditions,shortening processing time could reduce the MDA content and lower the lipid peroxidation level.The MDA contents under 400×g,800×g,and 1 200×g for 0.5 h were separately 1%,2% and 0.5% lower than those under the same gravity for 1 h.To a certain extent,less gravity and shorter time could increase the CAT activity of wheat seedlings.Compared with CK,the CAT activity increased by 45% under the treatment of 400×g for 0.5 h.
出处
《河南农业科学》
CSCD
北大核心
2012年第3期26-27,37,共3页
Journal of Henan Agricultural Sciences
基金
河南科技大学实验基金项目(SY0809046)
