文献类型：期刊文献

中文题名：植物防御策略及其环境驱动机制

英文题名：Plant defensive strategies and environment-driven mechanisms

作者：王小菲[1] 高文强[1] 刘建锋[1] 倪妍妍[1] 江泽平[1]

第一作者：王小菲

机构：[1]中国林业科学研究院林业研究所,国家林业局林木培育重点实验室,北京100091

年份：2015

卷号：34

期号：12

起止页码：3542-3552

中文期刊名：生态学杂志

外文期刊名：Chinese Journal of Ecology

收录：CSTPCD;;Scopus;北大核心:【北大核心2014】；CSCD:【CSCD2015_2016】；

基金：国家自然科学基金项目(41371075);北京市科技计划项目(Z141100002314009)资助

语种：中文

中文关键词：化学防御;机械防御;次生代谢物;植食作用;气候因子;资源分配

外文关键词：chemical defense ; physical defense ; secondary metabolite ; herbivory ; climatic factor ; resource allocation.

分类号：Q948;S763

摘要：植物与环境长期相互作用和生存竞争的过程中,为了抵抗不利环境,形成了一套完整的防御体系。植物一方面通过改变形态结构作为机械/物理防御策略,另一方面则在生理生化做出响应作为化学防御策略。在化学防御中,植物主要以次生代谢物及防御性酶等作为抵抗和响应病原菌、植食动物以及非生物环境胁迫的重要生化基础,而常以叶脉网络结构、茎/叶韧性、硬度及其纤维素、半纤维素和木质素含量等来增强机械防御能力。本文从机械防御和化学防御两个角度评述了植物的防御体系,并从生物侵害、气候因素和资源分配3个方面综合评述了植物防御策略及其环境作用机制。从植物防御角度出发,可以更深层次地理解和发掘植物与环境的内在联系并提供新的思路,为全面认识植物区域环境适应、抗虫种质资源选育以及科学营林等相关研究提供参考。
During the long-term interactions or survival competition with biotic and abiotic envi- ronments, plants have developed a set of defensive strategies to resist adverse conditions. Two major defensive strategies, physical defense and chemical defense, were usually defined to ad- dress this issue. The physical defense strategy is adopted by plants through changing the morpho- logical structure, such as leaf vein network structure, stern and leaf toughness, hardness, cellu- lose, hemicellulose and lignin content, etc; while the chemical defense strategy refers to physio- logical and biochemical responses, such as some secondary metabolites and defensive enzymes which often serve as a critical biochemical basis for the resistance and response to pathogens, pests and the abiotic environmental stresses. In this paper, we firstly reviewed important traits of the two distinctively defensive strategies, and then analyzed their driven mechanisms from the perspectives of biological violations, climate factors, and resource allocation in plants. The paper would, to some extent, contribute to further understanding the internal relationship between plant＇ s traits and environment, and also provide some references for plant＇ s regional adaptation, selective breeding in insect-resistant germplasm resources, and forest management.