摘要
以具有典型植株形态的番茄幼苗为材料,进行遮光处理(遮光后光强为25%自然光),测量遮光后及恢复自然光照过程中番茄体内MDA含量和SODP、OD、CAT活性。结果表明,短期遮光后两品系MDA含量都明显增加,叶片上冲型品系增加幅度低于叶片平展型品系,说明恢复过程中叶片上冲型品系具有更强的恢复能力。短期遮光后两品系SOD、CAT活性明显降低,POD活性略有升高;恢复过程中SOD活性前期迅速升高,POD和CAT活性先降后升。
The typical form of tomato seedlings were taken as materials for shading treatment and were under 25% daylighting density. MDA content, SOD, POD and CAT activity of tomato were tested after low light density and during the recovery. The result showed that the MDA content of two stains increased obviously after short term shade, the range of increase of uprush-leaf stain was lower than spreading-leaf stain, and uprush-leaf stain had stronger recovery ability than spreading-leaf stain during the recovery. The SOD,CAT activity obviously decreased and the POD activity increased of two stains after short term shade. The SOD activity increased quickly in the preceding period of the recovery; the POD, CAT activity firstly decreased and then increased during the recovery.
出处
《安徽农业科学》
CAS
北大核心
2007年第4期980-981,共2页
Journal of Anhui Agricultural Sciences
