次生代谢产物与植物抗病防御反应

郭艳玲1,2, 张鹏英1, 郭默然1, 陈靠山1,*
1山东大学生命科学学院和国家糖工程技术研究中心, 济南250100; 2德州学院农学系, 山东德州253023

通信作者:陈靠山;E-mail: ksc313@126.com;Tel: 0531-88365311

摘 要:

次生代谢产物是由植物次生代谢产生的许多结构不同的小分子有机化合物, 它们广泛参与植物的生长、发育、防御 等生理过程。次生代谢产物在植物的抗病防御反应中发挥着重要作用, 可以作为生化壁垒防御病原物侵染, 还可以作为信 号物质参与植物的抗病反应; 在植物与病原物互作中, 植物合成新的抗菌物质植保素, 原有的抗菌物质也会增加。植物次 生代谢产物的积累受到病原物、发育、环境等多种因素的调节。本文重点介绍次生代谢产物在植物抗病防御中的相关作 用以及影响其合成的各种因素。

关键词:次生代谢产物; 植物; 抗病; 病原物

收稿:2011-11-29   修定:2012-04-17

资助:山东省优秀中青年科学家科研奖励基金(BS2011SW016)和国家博士后科学资金资助项目(2009045132)。

Secondary Metabolites and Plant Defence Against Pathogenic Disease

GUO Yan-Ling1,2, ZHANG Peng-Ying1, GUO Mo-Ran1, CHEN Kao-Shan1,*
1College of Life Sciences and National Glycoengineering Research Center, Shandong University, Jinan 250100, China; 2Department of Agriculture, Dezhou University, Dezhou, Shandong 253023, China

Corresponding author: CHEN Kao-Shan; E-mail: ksc313@126.com; Tel: 0531-88365311

Abstract:

Secondary metabolites cover a very wide variety of unrelated micromolecule compounds. These products regulate many plant physiological responses in plant growth, development and adaptation, and often play an important role in plant defense against pathogens. Some products may serve as chemical barriers, and some could have functions in defense-related signaling processes. De novo phytoalexins synthesis and the accumulation of phytoanticipins is induced by pathogen. Secondary metabolites biosynthesis is related to many developmental and environmental cues. In this review, we summarized the roles of secondary metabolites in plant defense and the influence of several factors on the biosynthesis of secondary metabolites.

Key words: secondary metabolites; plant; defense; pathogen

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