高等植物中硅元素的生态学作用  

Ecological Roles of Silicon in Higher Plants

作　　者：熊蔚[1] 胡宇坤[1] 宋垚彬[1] 戴文红[1] 李文兵[1] 董鸣[1] 

机构地区：[1]杭州师范大学生命与环境科学学院,生态系统保护与恢复杭州市重点实验室,浙江杭州310036

出　　处：《杭州师范大学学报（自然科学版）》2017年第2期164-172,共9页Journal of Hangzhou Normal University(Natural Science Edition)

基　　金：国家自然科学基金项目(31261120580,41401556);杭州师范大学攀登工程项目(201203)

摘　　要：植物既可对环境产生生态响应,也可反作用于环境,产生生态效应.硅(Si)广泛存在于地壳及植物体中,在其生物地球化学过程中循环,也在植物-土壤系统中循环.植物硅含量及分布与系统发育、土壤有效硅含量以及气候因子相关.植物对硅的利用可影响植物对环境的多种生态响应,包括对干旱胁迫的响应、对贫瘠胁迫的响应、对铝毒及重金属胁迫的响应、对机械胁迫的响应以及对盐分胁迫的响应等.同时,植物硅还会影响植物的多种生态效应,包括植物与植物关系、植物与动物关系、植物与微生物关系,也还会改变生态系统结构、生态系统功能和生态系统服务.植物硅也是重要的功能性状,在未来研究中应该得到更加重视.Plants can have responses and effects on the environment. Silicon, which widely exists in the earth crust and plants, cycles in its biogeochemical process and plant soil system. The content and distribution of silicon in plants relate to phylogeny, available silicon content in soil and climatic factors. Plants＇ usage of silicon can affect a variety of ecological responses of plants, including the responses to drought stress, nutrient stress, aluminum toxicity stress, heavy metal stress, mechanical stress and salt stress. Meanwhile, silicon in plants can affect a variety of ecological effects of plants, including the relations among plants, the relations between plants and animals, the relations between plants and microbes, and can also change the structure, functions and services of ecosystem. Apparently, plant silicon, which is an important plant functional traits, should receive more attentions in future ecological study.

关 键 词：硅 植物功能性状 植物-土壤系统 生态响应 生态效应 

分 类 号：Q948.1[生物学—植物学]