摘要： 分别在辣椒的定植期、花期、绿熟期、红熟期进行遮光处理,对辣椒素含量及其代谢中相关酶的关系进行研究。结果表明:绿熟期遮光处理辣椒素含量最高,其次是花期遮光、定植期遮光、红熟期遮光,对照的含量最低。绿熟期遮光处理苯丙氨酸解氨酶(PAL)活性最高,花期和定植期遮光次之,再次是对照和红熟期遮光。过氧化物氧化酶(POD)活性,红熟期和定植期遮光最高,其次是对照和花期遮光,绿熟期遮光最低。多酚氧化酶(PPO)活性,对照和红熟期遮光较高,定植期和花期遮光次之,绿熟期遮光最低。由此表明,遮光增加了辣椒素含量,绿熟期遮光效果较好。辣椒素含量高时,PAL活性高,但POD和PPO活性低,表明辣椒素含量与三种酶的活性有相关性。

关键词: 辣椒素, 遮光, 苯丙氨酸解氨酶, 过氧化物氧化酶, 多酚氧化酶

Abstract: Respective shading in the transplanting period,flowering period,green mature and red mature of the pepper,to research the changes of capsaicin content and relevant enzymes in the metabolism.The results show that,capsaicin content of green mature is largest than flowering period,transplanting period and red mature,contrast lowest.PAL activity of the green mature significantly higher than in flowering period and transplanting period.Contrast and red mature lowest.POD activity of green mature is lowest,transplanting period and red mature is highest than contrast and flowering period.PPO activity of green mature is lowest,flowering period and transplanting period are lower than contrast and red mature.So that shading increase the capsaicin content,shading of green mature is best.If capsaicin content and PAL activity are higher,but POD and PPO activity is lower.Indicated capsaicin content and three kind of the enzyme have relationship.

Key words: Capsaicin, Shading, PAL, POD, PPO

中图分类号: 

• S61.3