摘要
落花落果是果树普遍存在的一种生理现象,是由于细胞壁降解而引起的花果脱落过程,是利于果树进化的一种表现,但落花落果不利于果树生产。前人研究表明,果树花果脱落部位能够感受外界环境因子及自身生长因子等脱落信号,从而调节果树细胞内相关基因的表达,引起生理生化反应而导致整个器官脱落过程,但各影响因子间的互作机理研究尚待加强。本文从果树落花落果的类型和特点,环境因子对落花落果的影响,以及果树落花落果的生理及分子机制研究进展,旨在为全面深入理解果树落花落果特性和形成机制,促进果树高产稳产提供新信息。
Fruit and flower abscission is a phenomenon commonly occurred in fruit trees due to the degradation of cell walls.It is a kind of adaptation behavior that is conducive to the evolution of fruit trees,but give a negative effect for fruit production.To date,intensive researches have demonstrated that after the abscission signal of external environmental factors and interior self-growth factors were received,the expression levels of related genes as well as physiological and biochemical responses,leading to the formation of the abscission layer of fruit pedicels and the occurrence of fruit abscission,however,the interaction mechanism between the factors have been not yet perfect so far.Currently,the types and characters of flower and fruit abscission,the environmental factors leading to the flower and fruit abscission,and the advances in the physiological and molecular mechanisms underlying the flower and fruit abscission are reviewed,which are beneficial for the further understanding of the characters and formation mechanisms of flower and fruit abscission so as to improve the fruit yield.
作者
文晓鹏
仇志浪
洪怡
WEN Xiao-peng;QIU Zhi-lang;HONG Yi(Key laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region(Ministry of Education),Institute of Agro-bioengineering/College of Life Sciences,Guizhou University,Guiyang,Guizhou 550025,China)
出处
《山地农业生物学报》
2018年第4期1-17,101,共17页
Journal of Mountain Agriculture and Biology
基金
贵州省高层次创新人才培养项目(黔科合人才[2016]4010)
关键词
果树
落花落果
机制
植物激素
研究进展
fruit tree
flower and fruit abscission
mechanism
phytohormone
advance
