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Position: Home > Articles > Chemical mechanism of exotic weed invasion. Chinese Journal of Applied Ecology 2004,15 (4) 707-711

外来杂草入侵的化学机制

作  者:
王朋;梁文举;孔垂华;姜勇;张茂新;张朝贤
单  位:
华南农业大学热带亚热带生态研究所;中国科学院沈阳应用生态研究所;中国农业科学院植物保护研究所
关键词:
外来杂草;入侵;种间相互作用;化感作用;化学机制
摘  要:
由外来杂草入侵引发的严重生态和经济问题已倍受关注 .外来杂草在新生境成功入侵 ,除了具备一些基本的生物生态学特征外 ,还应具备一些特有的入侵机制 .阐明外来杂草的各种入侵机制可以为入侵杂草的预测和控制提供科学依据 .外来杂草只有在新生境中与原产地生物种间的相互作用中取得优势 ,才能定植并扩增种群而成功入侵 .在这些外来杂草和原产地生物种间的相互作用关系中 ,化学关系是不可忽视的方面 .目前研究已经证实 :植物的化感作用在外来杂草成功入侵中发挥着重要的作用 .事实上 ,植物也可以通过合成和释放特定的化学物质防御或抑制新生境的动物、植物和微生物 .外来杂草入侵的化学机制涉及到植物化学生态学的各个方面 .因此 ,外来杂草的化学生态学特征应作为入侵种预测的重要指标之一 ,外来杂草入侵的化学机制应是今后重要的研究方向
译  名:
Chemical mechanism of exotic weed invasion.
作  者:
WANG Peng 1,LIANG Wenju 1,KONG Chuihua 1,2,JIANG Yong 1,ZHANG Maoxin 2,ZHANG Chaoxian 3 ( 1 Institute of Applied Ecology,Chinese Academy of Sciences,Shenyang 110016,China; 2 Institute of Tropical and Subtropical Ecology,South China Agricultural University,Guangzhou 510642,China; 3 Institute of Plant Protection,Chinese Academy of Agriculturial Sciences,Beijing 100094,China).
关键词:
Exotic weeds, Invasion, Species interaction, Allelopathy, Chemical mechanism.
摘  要:
The ecological and economic impacts of exotic invasive weeds have been followed with interest.A successful invasion of exotic weeds depends not only on their bio-ecological traits,but also on some specific mechanisms of invasion.The clarification of the invasive mechanism of exotic weeds will be beneficial to predict and manage on them.In the process of establishment,reproduction and spreading,an exotic species has to become dominant in the interactions with native ones at new habitats,and then invades successfully.Among invasive mechanisms,the chemical interaction between exotic and native weeds should not be neglected.Previous studies showed that allelopathy plays an important role in exotic weed invasion.In fact,plants are able to defend or inhibit animals,plants and microbes from new habitats by using some specific chemicals.The chemical mechanism of exotic weed invasion might involve each aspect of plant chemical ecology.Therefore,chemical ecological characteristics of exotic weeds should be regarded as one of the most significant factors on predicting invasive species.The studies on chemical mechanism of exotic weed invasion will be one of the important aspects in future.

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