植物根内皮层分化及其可塑性研究进展  

Research Progress on Endodermal Differentiation and Its Plasticity of Plant Roots

作　　者：张标 朱莹莹 孙光军[3] 刘海伟[1] ZHANG Biao;ZHU Yingying;SUN Guangjun;LIU Haiwei(Institute of Tobacco Research of CAAS/Key Laboratory of Tobacco Biology and Processing,Ministry of Agriculture,Qingdao,Shandong 266101,China;School of Graduate,Chinese Academy of Agricultural Sciences,Beijing 100081 China;Guizhou Tobacco Company,China National Tobacco Corporation,Guiyang,Guizhou 550004,China)

机构地区：[1]中国农业科学院烟草研究所/农业农村部烟草生物学与加工重点实验室,山东青岛266101 [2]中国农业科学院研究生院,北京100081 [3]中国烟草总公司贵州省公司,贵州贵阳550004

出　　处：《天津农业科学》2023年第2期1-10,共10页Tianjin Agricultural Sciences

基　　金：中国烟草总公司贵州省公司科技计划项目(2011911);贵州省烟草公司毕节市公司科技项目(2021520500240048);中国农业科学院科技创新工程(ASTIP-TRIC03)。

摘　　要：植物的根从土壤中吸收水分和养分,并将其运输至地上部供植物生长发育所需。内皮层是包围根部维管系统的最内层的细胞层,其分化而产生凯氏带和木栓层2个重要的质外体屏障。其中,木栓层近年被发现其在植物水分、养分根部径向运输的意义甚至不亚于凯氏带。内皮层分化在植物响应广泛的非生物胁迫和生物胁迫的过程中也起到至关重要的作用,特别内皮层中的凯氏带和木栓层通过自身的改变来响应环境变化,以提高对环境的适应力。因此,本文综述了近年来内皮层分化可塑性的最新研究进展,重点阐述了凯氏带和木栓层与环境胁迫、矿质元素吸收,以及生物胁迫的关系,以期为内皮层的可塑性在植物生理功能调控的理论与实践中提供参考。The plant roots absorb water and nutrients from the soil and transport them upwards the aerial parts for its growth and development. The endodermis is the innermost cortical celllayer that surrounds the vasculature of root, and its differentiation produces two important apoplastic barriers, casparian stripsand suberin lamellae. Among them, suberin lamellae has been found its significance in the radial transport of plant water and nutrients is no less than that of casparian stripsin recent years. Endodermal differentiation also plays a crucial role in the process of plants responding to a range of abiotic and biotic stresses. In particular, casparian stripsand suberin lamellae in endodermis respond to environmental changes through their own changes to improve the adaptability toenvironment. Therefore, this paper reviewed the latest research progress of the plasticity of endodermal differentiation in recent years, focusing on the relationship between casparian stripsand suberin lamellae and environmental stress, mineral element absorption, and biotic stress, in order to provide a reference for the theory and practice of the plasticity of endodermal differentiation in the regulation of plant physiological functions.

关 键 词：植物 根内皮层 凯氏带 木栓层 可塑性 

分 类 号：Q944.5[生物学—植物学]