环境胁迫对植物根系形态的影响  

Effects of Environmental Stress on Plant Root Morphology

作　　者：许璐璐[1] 王涵 高盼盼 吴三桥[1] 张辰露[1] XU Lu-lu;WANG Han;GAO Pan-pan(College of Biological Sciences and Engineering,Shaanxi University of Technology,Hanzhong,Shaanxi 723000)

机构地区：[1]陕西理工大学生物科学与工程学院,陕西汉中723000

出　　处：《安徽农业科学》2020年第14期16-19,共4页Journal of Anhui Agricultural Sciences

基　　金：国家自然科学基金项目(81703646);陕西理工大学研究生创新基金项目(SLGYCX1920)。

摘　　要：根是植物获取养分和水分的重要器官,易受环境因子(水分、温度、土壤、光照等)的影响,植物通过改变根系形态(根长、根面积、直径、组织结构及空间构型等)以适应环境胁迫。根系形态的改变也会反作用于根际土壤微环境,影响植物根系的生长和发育。植物根系形态的环境可塑性对于一些根类药材的品质形成而言具有重要意义。总结了环境胁迫因子对植物根系形态的影响及作用机制,为探究环境因子对植物根系的可塑性调控作用提供参考,对阐明特定生态区域根类中药材的品质形成具有一定指导意义。The root can absorb the moisture and nutrition as a vital organ of plants.They are affected by the environmental factors(moisture,temperature,soil,light,etc.).Plants adapt to the environmental stress by changing root morphology(root length,root area,diameter,tissue structure,and spatial configuration,etc.).The change of root morphology will also react on soil microenvironment near the rhizosphere and affect the growth and development of plant roots.Environmental plasticity of plant root morphology has a great significance for the quality formation in some root medicinal herbs.This article summarizes the effects and its mechanism of environmental stress on plant root morphology,and provides a reference for exploring the plasticity regulation of environmental factors on plant roots.It has certain guiding significance to clarify the quality formation of Chinese medicinal materials in specific ecological regions.

关 键 词：根系 形态 环境胁迫因子 可塑性 作用机制 

分 类 号：Q945[生物学—植物学]