十字花科植物蜡质形成特性及分子机制研究进展

十字花科Brassicaceae包含蔬菜、油料作物、药用植物、观赏植物和染料植物等，是一类1年生、2年生或多年生的植物，是中国最重要的蔬菜和油料作物之一。蜡质的主要成分是超长链脂肪酸及其衍生物，十字花科植物的蜡质是其适应外界环境变化而形成的保护结构，在维持水分平衡、反射紫外线、减少外来机械损伤、降低低温伤害、抵御细菌真菌入侵、防止果实开裂与昆虫侵食等抵抗生物与非生物胁迫中起着重要作用。对十字花科植物蜡质类型、生理功能、遗传特性、合成与转运途径等方面进行综述，可为十字花科植物的蜡质代谢研究提供参考。图2表2参61

Research review on features and molecular mechanism of wax formation in Brassicaceae

Mainly composed of vegetables,oil crops,medicinal plants,ornamental plants and dyewood,Brassicaceae is a plant that can be annual,biennial or perennial,also as the most important family of vegetable and oil crops in China.Wax,comprised with very long chain fatty acids and corresponding derivatives,a layer of protective structure formed on plant surface to adapt different environmental conditions,plays an important role in resistance to biotic and abiotic stresses.It helps maintain water balance,reflect ultraviolet rays,reduce external mechanical damage,decrease low temperature damage,resist invasion of bacteria and fungi,prevent fruit cracking and fight off insect invasion.This paper,with a brief review of the type,physiological function,genetic characteristics,biosynthetic and transport pathways of wax,is intended to provide reference for the study of wax metabolism in Brassicaceae plants.Ch,2 fig.2 tab.61 ref.]