人工老化过程中柔枝松种子酶活性变化的研究  

Study on the Activity Changes of Enzyme in the Seeds of Pinus flexilis James During Artificial Aging

作　　者：马书燕[1] 李吉跃[2,3,4,5] 彭祚登[3,4,5] 

机构地区：[1]唐山职业技术学院,河北唐山063000 [2]华南农业大学林学院,广东广州510642 [3]北京林业大学资源与环境学院 [4]北京林业大学省部共建森林培育与保护教育部重点实验室 [5]国家林业局干旱半干旱地区森林培育与生态系统研究重点实验室,北京100083

出　　处：《种子》2011年第5期9-14,共6页Seed

基　　金：国家“948”引进国际先进农业科学技术项目“柔枝松优良抗逆性种质资源及快繁技术引进”(编号:2003-4-05)

摘　　要：对柔枝松(Pinus flexilisJames.)种子进行酶活性变化实验,结果表明,经过人工老化处理,5个柔枝松种源种子胚乳中的APX和PPO活性的初始值都明显比正常种子高,而POD、SOD和CAT的初始活性值下降。种源Rs、Rg和Rl的种子品质较好,种源Rsd的酶活性变化最大。由此可以作为引进柔枝松优良种质资源的依据,同时也为国内林木种子活力的研究提供借鉴。The study focuses on the variation of enzymes activity in the seeds of Pinus flexilis James during artifical aging. Based on the artificial aging treatment, the initial quantity of APX and PPO in five provenances was bigger than that of normal seed. But POD ,SOD and CAT decreased. The quality of the provenances of Rs, Rg and R1 were much better, and the enzymes activity change of provenance Rsd was the biggest. This study provided a reference for the seed vigor of forest trees.

关 键 词：柔枝松 引种 种源 SOD 酶活性 

分 类 号：S791.24[农业科学—林木遗传育种]