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中国农学通报

中国农学通报 ›› 2009, Vol. 25 ›› Issue (19): 62-64.

所属专题： 生物技术

• 农学 农业基础科学 • 上一篇    下一篇

脐橙花开放和衰老过程中抗氧化酶活性变化

任艳芳 何俊瑜 王思梦 刘厚宇   

  • 收稿日期:2009-07-13 修回日期:2009-08-07 出版日期:2009-10-05 发布日期:2009-10-05
  • 基金资助:

    贵州省自然科学基金项目;贵州大学人才基金项目

Changes of Anti-oxidant Enzymes Activities during Florescence and Flower Senescence of Navel Orange

jy   

  • Received:2009-07-13 Revised:2009-08-07 Online:2009-10-05 Published:2009-10-05

PDF (PC)

828

摘要：

植物花的开放和衰老是一个十分复杂的生理生化过程，以纽荷尔脐橙为研究材料，探讨花发育和衰老过程中花器官抗氧化酶活性变化情况，结果表明，随着脐橙花开放和衰老，花中MDA含量逐渐积累，SOD、CAT和GPX活性则是先升高后降低，而APX则是逐渐降低。因此，活性氧代谢失调引发的生物膜结构破坏是脐橙花开放和衰老的重要原因之一。

关键词: 氮素形态, 氮素形态, 烤烟, 成熟度, 组织结构, 叶绿素含量

Abstract:

Florescence and flower Senescence are complicated physiological and biochemical processes. Navel orange was taken as experiment material to investigate the changes of anti-oxidant activities during florescence and flower senescence. The results showed that MDA content accumulated and the activities of SOD, CAT, GPX first increased then decreased, but APX decreased during florescence and flower senescence. Therefore, one of important reasons for florescence and senescence of navel orange is the disorder of metabolism induced by the accumulation of active oxygen species.