乙酰水杨酸对采后玉露桃果实成熟衰老进程和乙烯生物合成的影响  

Effects of Acetylsalicylic Acid on the Postharvest Senescence Process and Ethylene Biosynthesis of Yulu Peach Fruit

作　　者：蔡冲[1] 陈昆松[1] 贾惠娟[1] 张玉[1] 胡亚东[1] 丁建国[1] 

机构地区：[1]浙江大学果实分子生理与生物技术实验室农业部园艺植物生长发育与生物技术重点开放实验室,浙江杭州310029

出　　处：《果树学报》2004年第1期1-4,共4页Journal of Fruit Science

基　　金：国家自然科学基金(30170660);浙江省自然基金重点(ZD0004)项目

摘　　要：20℃下用1.0mmol/L(pH3.5)的乙酰水杨酸(ASA)处理玉露桃Prunuspersica(L.)Batsch果实,分析其对果实成熟衰老相关因子的影响。结果表明,随着果实成熟衰老,LOX活性、超氧自由基()生成速率、ACC合成酶、ACC氧化酶活性和乙烯释放均呈峰形变化,果实硬度迅速下降,组织电导率持续上升;ASA处理显著抑制了峰前相应的LOX、ACC合成酶和ACC氧化酶活性变化以及乙烯释放,维持了较高的果实硬度和细胞膜的完整性,延缓了果实的成熟衰老。The fruit of Yulu peach variety Prunus persica(L.)B at sch.were used for studying the effects of acetylsalicylic acid(ASA,1.0mm ol/L,pH3.5)treatment on the changes of LOX activities,superoxide radical ()production,and ethylene biosynthesis.Results showed that the changes of LO X activities,production,ACC synthase and ACC oxidase activities and ethylene b iosynthesis were appeared peak-trend,fruit firmness decreased and tissue elect ric conductivity in-creased after postharvest.ASA treatment inhibited LOX act ivities,slowed down production,suppressed ACC synthase and ACC oxidase activit ies and ethylene biosynthesis,retarded ethylene production,maintained higher f irmness and cell membrane integrity,delayed the process of fruit ripening and s enescence.

关 键 词：乙酰水杨酸 水杨酸 玉露桃 乙烯 果实软化 

分 类 号：S662.1[农业科学—果树学]