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园艺学报 ›› 2011, Vol. 38 ›› Issue (2): 303-303–310.

• 观赏植物 • 上一篇    下一篇

牡丹呼吸速率和内源激素含量变化与开花衰老的关系

史国安1,2,郭香凤1,孔祥生1,张国海1,包满珠2,*   

  1. (1河南科技大学农学院,洛阳市牡丹生物学重点实验室,河南洛阳 471003;2华中农业大学园艺林学学院,园艺植物生物学教育部重点实验室,武汉 430070)
  • 收稿日期:2010-09-29 修回日期:2011-01-21 出版日期:2011-02-25 发布日期:2011-02-25
  • 通讯作者: 包满珠

Respiration Rate and Endogenous Hormone Levels in Relation to the Flower Development of Tree Peonies

SHI Guo-an1,2,GUO Xang-feng1,KONG Xiang-sheng1,ZHANG Guo-hai1,and BAO Man-zhu2,*   

  1. (1College of Agriculture,Luoyang Key Laboratory of Peony Biology,Henan University of Science and Technology,Luoyang,Henan 471003,China;2College of Horticultural and Foretry Science,Key Laboratory of Horticultural Plant Biology,Ministry of Education,Huazhong Agricultural University,Wuhan 430070,China)
  • Received:2010-09-29 Revised:2011-01-21 Online:2011-02-25 Published:2011-02-25
  • Contact: BAO Man-zhu

摘要: 以牡丹品种‘洛阳红’和‘胡红’为材料,研究开花和衰老过程中花瓣内源激素水平与呼吸代谢的变化。结果表明,随着花朵的发育,‘洛阳红’和‘胡红’呼吸速率均呈现典型的跃变特征,高峰分别出现在盛开期和半开期。牡丹开花后表现出花瓣中可溶性蛋白质含量下降和花色素苷积累的生理特征。牡丹在开花、衰老过程中内源IAA、ZR和GA3含量降低,内源ABA含量上升,‘洛阳红’属于类似乙烯跃变型,‘胡红’属于类似乙烯末期上升型。结果提示,牡丹在开花和衰老过程中花瓣内源激素代谢失衡是导致花瓣衰老的重要原因。

关键词: 牡丹, 开花和衰老, 呼吸跃变, 内源激素

Abstract: Respiration rates and endogenous hormone levels were measured during florescence and senescence of Paeonia suffruticosa cultivars‘Luoyanghong’and‘Huhong’. The results showed that respiration rates of‘Luoyanghong’and‘Huhong’were characterized by a typical climacteric,exhibiting a peak of respiration rate at full-opening and middle-opening stage,respectively. It was found that a decline in the content of soluble proteins but an increase in anthocyanin in peony petals after opening. The contents of endogenous IAA,ZR and GA3 decreased,however,endogenous ABA accumulated in petal of peony during florescence and senescence. The change pattern of ethylene production in‘Luoyanghong’was like that of ethylene climacteric cut flower,while the change pattern of ethylene emission in‘Huhong’was like increase during later stage. The data suggest that senescence of peony petal can be attributed to metabolic unbalance of endogenous hormone levels during florescence and senescence.

Key words: Paeonia suffruticosa, florescence and flower senescence, respiration climacteric, endogenous hormone

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