麝香石竹花衰老过程中钙调蛋白含量变化与乙烯生物合成的关系  

THE RELATIONSHIP BETWEEN THE CHANGE OF CAL MODULIN CONTENT AND ETHYLENE BIOSYNTHESIS OF CARNATION FLOWER DURING ITS SENESCENCE

作　　者：汤福强 吴有梅[1] 刘愚[1] 梁厚果[2] 

机构地区：[1]中国科学院上海植物生理研究所,上海200032 [2]兰州大学植物生理研究室,兰州73000

出　　处：《Acta Botanica Sinica》1994年第9期709-713,共5页Acta Botanica Sinica（植物学报：英文版）

基　　金：国家自然科学基金

摘　　要：麝香石竹（Ｄｉａｎｔｈｕｓ ｃａｒｙｏｐｈｙｌｌｕｓｓｕｕ ｂｅａｍ ’）切花在第４ 天开始释放乙烯，１－氨基－环丙烷－１－羧酸（ＡＣＣ）含量、ＡＣＣ合酶活性相应增加，乙烯释放第６ 天达到高峰，随后逐渐下降。钙调蛋白含量的变化和ＡＣＣ合酶活性的变化趋势一致。ＧＡ、硫代硫酸银（ＳＴＳ）和氨基氧乙酸（ＡＯＡ）处理的切花中钙调蛋白含量比同期对照的低，乙烯生物合成被抑制，切花衰老被推迟。钙离子促进花瓣乙烯的释放。The relationship between the change of calmodulin content and the ethylene biosynthesis in cut carnation flower (Dianthus caryophyllus’ sun besm’) during its senescence was studied.Ethylene releasing was detected at the forth day and reached its peak at the sixth day after the cut carnation flower was cultured under controlled conditions of 27℃ with a 14 h photoperiod of 15000 lx provided by fluorescent lamps.The change of calmodulin content positively correlated with the increased content of ACC, the activity of ACC synthase and ethylene production.The calmodulin contents in petals of the detached flower treated with GA, silver thiosulfate (STS) and aminooxyacetic acid (AOA) were lower than those in control flower petals before they withered, ethylene releasing was reduced and their senescence was delayed too.Ca 2+ stimulated ethylene releasing in carnation flower petals, but chlorobenzene (CPZ), an antagonist of calmodulin, inhibited its releasing.It seemed that calmodulin was involved in the regulation of senescence of carnation flower.

关 键 词：石竹 麝香石竹 衰老 乙烯 调钙蛋白 

分 类 号：S681.501[农业科学—观赏园艺]