植物激素茉莉酸调控天然橡胶合成的研究进展  

Advances in the regulation of natural rubber synthesis by the phytohormone jasmonic acid

作　　者：黄俊 王帅 张云川 闫洁[1] HUANG Jun;WANG Shuai;ZHANG Yunchuan;YAN Jie(School of Life Science,Shihezi University,Shihezi,Xinjiang 832003,China)

机构地区：[1]石河子大学生命科学学院,新疆石河子832003

出　　处：《植物生理学报》2020年第4期654-660,共7页Plant Physiology Journal

基　　金：国家自然科学基金(31860070)。

摘　　要：天然橡胶是一种重要的战略和经济资源,被广泛运用于各种重要领域。植物激素茉莉酸是植物生长发育的重要信号分子,大量研究表明外源茉莉酸激活茉莉酸信号途径来诱导乳管分化,响应外源茉莉酸处理的甲羟戊酸途径(MVA)是天然橡胶合成前体异戊烯基焦磷酸(IPP)的主要来源。茉莉酸协同乙烯调控橡胶合成,受到茉莉酸调控的多酚氧化酶(PPO)在排胶中起到至关重要的作用。本文主要以橡胶树(Hevea brasiliensis)和橡胶草(Taraxacum kok-saghyz)为对象,综述茉莉酸诱导乳管细胞分化、调控天然橡胶合成和胶乳排出等方面的研究。更深入了解茉莉酸在调控天然橡胶合成中所扮演的重要角色,有利于提高橡胶潜在产量。Natural rubber is industrial resource of strategic and economic importance, which is widely used in various important fields. The phytohormone jasmonic acid(JA) is an important signal molecule for plant growth and development. Many studies reveal that exogenous JA could induce the differentiation of latex cells(laticifers) through activating the JA signaling pathway. The mevalonate pathway(MVP) responding to exogenous JA treatment provides the main source of isopentenyl diphosphate(IPP), the precursor of natural rubber biosynthesis. Both JA and ethylene signal transduction pathways regulate latex(cytoplasm of laticifers) production. The JA-regulated polyphenol oxidase plays an important role in the duration of latex flow. This paper reviews the current knowledge in two rubber-producing plants, Hevea brasiliensis and Taraxacum kok-saghyz, of JA regulations on laticifer differentiation, natural rubber synthesis and duration of latex flow, which may help better understand the important role of JA in natural rubber production.

关 键 词：橡胶树 橡胶草 茉莉酸 乙烯 乳管分化 天然橡胶合成 排胶 

分 类 号：TQ332[化学工程—橡胶工业]