植物学报 ›› 2023, Vol. 58 ›› Issue (6): 1008-1018.DOI: 10.11983/CBB22208

• 专题论坛 • 上一篇    

木栓层在水和溶质运输中的生理功能研究进展

张标1,2, 吴健3, 张杨4, 董小卫4, 韩硕3, 高昕3, 杜从伍3, 李慧英3, 种学法3, 朱莹莹1, 刘海伟1,*()   

  1. 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, 青岛 266101
    2中国农业科学院研究生院, 北京 100081
    3山东临沂烟草有限公司, 临沂 276000
    4山东中烟工业有限责任公司, 济南 250000
  • 收稿日期:2022-08-31 接受日期:2023-01-10 出版日期:2023-11-01 发布日期:2023-11-27
  • 通讯作者: * E-mail: heaveyliu@163.com
  • 基金资助:
    山东中烟工业有限责任公司科技项目(202001001);中国农业科学院科技创新工程(ASTIP-TRIC03)

Research Progress on Physiological Functions of Suberin lamellae in Water and Solutes Transport

Biao Zhang1,2, Jian Wu3, Yang Zhang4, Xiaowei Dong4, Shuo Han3, Xin Gao3, Congwu Du3, Huiying Li3, Xuefa Chong3, Yingying Zhu1, Haiwei Liu1,*()   

  1. 1Institute of Tobacco Research of Chinese Academy of Agricultural Sciences/Key Laboratory of Tobacco Biology and Processing, Ministry of Agriculture and Rural Affairs, Qingdao 266101, China
    2Graduate School of Chinese Academy of Agricultural Sciences, Beijing 100081, China
    3Shandong Linyi Tobacco Co., Ltd., Linyi 276000, China
    4China Tobacco Shandong Industrial Co., Ltd., Jinan 250000, China
  • Received:2022-08-31 Accepted:2023-01-10 Online:2023-11-01 Published:2023-11-27
  • Contact: * E-mail: heaveyliu@163.com

摘要: 植物的根可选择性地从土壤中吸收水分和养分, 并运输至地上部供植物生长发育所需, 这些功能与其解剖结构密切相关。根部吸收的水和溶质在根中的径向运输主要包括质外体、共质体和跨细胞3条途径。内皮层是包围中央维管系统的最内细胞层。长期以来, 内皮层分化形成的凯氏带被认为在阻断水和溶质通过质外体途径运输中发挥决定性作用。然而, 近年来, 研究发现内皮层分化形成的木栓层对水和溶质的径向运输作用不亚于凯氏带, 甚至称木栓化是内皮层细胞的第二次生命。该文综述了近年来木栓层在水和溶质运输中生理功能的最新进展, 阐述了木栓层与作物抗旱、抗盐、抗重金属和抗养分胁迫之间的关系, 以期为内皮层可塑性调控植物生理功能的理论和实践提供参考。

关键词: 根, 内皮层, 木栓层, 水和溶质, 生理功能

Abstract: Plant roots can acquire water and nutrients selectively from soil and transport them upwards to the aerial parts for plant growth and development. These functions are closely related to their anatomical structures. The radial transport of water and solutes absorbed by roots mainly includes three different pathways, namely, the apoplastic pathway, the symplastic pathway and the transcellular pathway. The endodermis is the innermost cell layer that surrounds the central vasculature. For a long time, endodermal differentiation formed the Casparian strips has been considered to play a decisive role in blocking water and solutes transport through the apoplastic pathway. However, in recent years, it has been found that suberin lamellae formed by endodermal differentiation plays no less important role in the radial transport of water and solutes than Casparian strips, and even that suberization is the second life of an endodermal cell. In this paper, we reviewed the latest research progress on the physiological function of suberin lamellae in water and solutes transport in recent years, and discussed the relationship between suberin lamellae and drought, salt, nutrient and heavy metal stress of crops, in order to provide a reference for the theory and practice of endodermal plasticity in the regulation of plant physiological function.

Key words: root, endodermis, suberin lamellae, water and solutes, physiological functions