摘要
以中棉所１８为材料，研究了大田条件下ＤＰＣ（缩节安）系统化控对棉叶发育和活性氧代谢的影响，结果表明，ＤＰＣ提高了叶片中叶绿素、可溶性蛋白的含量，降低和减轻了膜脂过氧化产物丙二醛（ＭＤＡ）的积累，提高了超氧物歧化酶（ＳＯＤ）活性，降低了过氧化氢酶（ＣＡＴ）、过氧化物酶（ＰＯＤ）活性，改善了活性氧代谢。ＤＰＣ具有显著延缓叶片衰老的效应，可能与改变了内源激素系统、改善了活性氧代谢有关。
Effects of DPC(N,N-dimethyl piperidinium chloride)on physiological changesduring development of leaves were studied under field condition using Gossypium hirsutumL. cv. CCRI 18 as material,indicating that all the contents of Chlorophyll a,a+b andwater soluble protein were increased apparently,and activity of SOD were stimulatedwhile those of CAT,POD were inhibited and the action oxygen metablism were ameliorat-ed(the)MDA content in leaf were decreased).The senescence of leaf were delayed and thechanges mentioned above may be resulted from the regulation of DPC on leaf endogenioushormons.
出处
《棉花学报》
CSCD
北大核心
1996年第6期312-315,共4页
Cotton Science
基金
农业部"八五"重点课题
关键词
棉花
叶片
活性氧代谢
cotton(Gossypium hirsiutum L.)leaf active oxygen matablismsenescence
