烟草中脱落酸的相关研究进展

Review on Abscisic Acid (ABA) in Tobacco

烟草的生长发育极易受到不良环境的影响,导致烟叶产量和品质下降,其对不利环境因素的抗性受植物激素的调控。植物激素脱落酸是植物体内五大类激素之一,参与植物的生长发育,可提高植物对非生物逆境胁迫的抗性。以脱落酸为核心的基因工程技术是目前作物抗逆育种的重点策略之一,本文重点总结烟草中脱落酸的相关研究进展,包括一般功能、抵御非生物逆境的功能、代谢和信号转导途径等,以期为烟草抗逆育种提供理论支持和技术方法借鉴。

Tobacco plant is quite vulnerable to abiotic stresses during its growth and development,which often results in the yield and quality decline of tobacco leaves.Thus it is urgent to enhance tobacco resistance to abiotic stress.The phytohormone abscisic acid(ABA)in tobacco can regulate various physiological processes and promote tobacco adaptation to abiotic stresses.ABA engineering might be one of the key strategies to obtain tobacco with tolerance to abiotic stress.This paper focuses on the research progress of ABA in tobacco,including general function,function in abiotic stress,metabolism and signaling pathway,etc.,which might provide reference for the practical applications and research on tobacco stress-resistance breeding.