胜红蓟化感作用研究Ⅲ.挥发油对不同营养水平下植物的化感作用

应用生态学报 ›› 1999, Vol. 10 ›› Issue (6): 748-750.

胜红蓟化感作用研究Ⅲ.挥发油对不同营养水平下植物的化感作用

徐涛, 孔垂华, 胡飞

华南农业大学热带亚热带生态研究所, 广州510642

收稿日期:1999-02-03 修回日期:1999-08-25 出版日期:1999-11-25 发布日期:1999-11-25
通讯作者: 孔垂华
作者简介:徐　涛,男,1974年生,硕士,主要从事植物化学生态学研究,发表论文多篇.
基金资助:
国家自然科学基金(39670141)和广东省自然科学青年基金(960427)资助项目.

Allelopathy of Ageratum conyzoides Ⅲ Allelopathic effects of volatile oil from Ageratum on plants under different nutrient levels

Xu Tao, Kong Chuihua, Hu Fei

Institute of Tropical and Subtropical Ecology, South China Agricultural University, Guangzhou 510642

Received:1999-02-03 Revised:1999-08-25 Online:1999-11-25 Published:1999-11-25

摘要/Abstract

摘要： 研究了胜红蓟挥发油对不同营养水平下植物的化感作用。结果表明,随着营养水平的降低,胜红蓟挥发油对受试植物的化感作用明显增强。在胜红蓟挥发油的作用下,受试植物叶绿素和可溶性蛋白含量明显降低,过氧化物酶(POD)活性降低,而质膜相对透性增加,丙二醛(MDA)含量升高。利用GC/MS对胜红蓟挥发油的组成和含量进行了分析,共鉴定16种物质,其中早熟素Ⅱ、早熟素Ⅰ和子丁香烯为主要成分,相对含量分别为36.85%、26.41%和19.84%.

关键词: 胜红蓟挥发油, 化感作用, 营养水平, 化学成分

Abstract: Allelopathic effects of the volatile oils from Ageratum conyzoides on radish, mungbean and ryegrass under different nutrient levels of Hoagland solution were studied. The results showed that with the decrease of nutrient level, the allelopathic effects of the volatile oil increased significantly. Under the impact of the volatile oil, the contents of chlorophyll, soluble proteins and the activity of PODin three plant species were decreased, while the relative plasma membrane permeability and the content of MDA increased. The chemical components and relative contents of the volatile oil from Ageratum conyzoides were analyzed by GC/MS. Sixteen compounds were identified, and precoceneⅡ, precoceneⅠand caryophyllene are the main components, with relative amount of 36.85%, 26.41% and 19.84%, respectively.

Key words: Volatile oil of Ageratum conyzoides, Allelopathy, Nutrient level, Chemical components

徐涛, 孔垂华, 胡飞. 胜红蓟化感作用研究Ⅲ.挥发油对不同营养水平下植物的化感作用[J]. 应用生态学报, 1999, 10(6): 748-750.

Xu Tao, Kong Chuihua, Hu Fei . Allelopathy of Ageratum conyzoides Ⅲ Allelopathic effects of volatile oil from Ageratum on plants under different nutrient levels[J]. Chinese Journal of Applied Ecology, 1999, 10(6): 748-750.

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