Position: Home > Articles > Study on Dynamics of Endogenous Hormones and Parameters Concerned Senescence in Cut Wintersweet Flowers
Journal of Beijing Forestry University
1999
(2)
蜡梅切花内源激素动态及衰老有关因子的研究
作 者：
盛爱武;郭维明;孙智华
单 位：
南京农业大学园艺系
关键词：
蜡梅切花，衰老，内源激素，SOD，MDA，花色素
摘 要：
ＧＣ及ＥＴＰ处理证实，蜡梅内源乙烯匮乏，且对外源乙烯不敏感，是非乙烯跃变及乙烯不敏感切花．衰老期间ＩＡＡ及ＡＢＡ显著增加，是主要促衰因子．ｉＰＡ呈单峰曲线，绽开期最高．ＳＯＤ及ＭＤＡ的动态表明了与衰老过程的规律性反相关．经鉴定，具邻二酚羟基的黄酮醇———槲皮素为蜡梅花瓣主要色素之一，并测定了其动态．结合蜡梅的衰老表现类型讨论了内源激素对蜡梅衰老的调节
译 名：
Study on Dynamics of Endogenous Hormones and Parameters Concerned Senescence in Cut Wintersweet Flowers
作 者：
Sheng Aiwu Guo Weiming Sun Zhihua (Department of Horticulture,Nanjing Agricultural University,210095,P.R.China)
关键词：
cut wintersweet (Chimonanthus praecox (Linn.)Link cv.‘Concolor’)flower,senescence,endogenous hormone,SOD and MDA,flower pigment
摘 要：
GC determination and ETP vase test showed that wintersweet flower lacks ethylene production,and insensitive to ethylene.So the flower must be non climatecric ethylene type and insensitive ethylene type.The contents of IAA and ABA increased obviously during senescence,and both of them are main factors of accelerating senescence.The dynamics curve of iPA was a type of single peak;and the content of iPA was the highest in opening stage.There were opposite correlation between SOD activities and MDA contents.Quercetin,a flavonol with o dihydroxy benzene was determined as one of major pigment of ‘Concolor’ wintersweet petal.The dynamics of the pigment during development and senescence of the flower was analyzed.According to senescence type,the stimulating roles of endogenous hormones on senescence processes of cut wintersweet flower were discussed.
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