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马缨丹及其酚类化合物对水葫芦生长的抑制作用

易振;张茂新;凌冰;徐迪;叶景中   

  1. 华南农业大学昆虫生态研究室,广州 510642
  • 收稿日期:2006-02-28 修回日期:2006-07-20 出版日期:2006-09-18 发布日期:2006-09-18

Inhibitory effects of Lantana camera and its contained phenolic compounds on Eichhornia crassipes growth

YI Zhen; ZHANG Maoxin;LING Bing; XU Di;YE Jingzhong   

  1. Laboratory of Insect Ecology, South China Agricultural University, Guangzhou
    510642, China
  • Received:2006-02-28 Revised:2006-07-20 Online:2006-09-18 Published:2006-09-18

摘要: 研究了马缨丹(Lantana camara)叶提取物及其酚类化合物对水葫芦(Eichhornia crassipes)生长及其生理生化指标的影响.结果表明, 马缨丹鲜叶水提物对水葫芦生长有明显的抑制作用.在较高浓度(>30g FW·L-1)下6 d可使水葫芦整株干枯死亡.经过高效液相色谱分离确定马缨丹水提物含有7种酚类化合物,分别为水杨酸、龙胆酸、雷琐酸、香豆素、阿魏酸、对羟基苯甲酸和6-甲基香豆素,在马缨丹鲜叶水提液中的浓度分别为50.95、13.46、5.28、3.36、2.92、2.19 和0.34 mg·L-1.7种化合物的混合物对水葫芦抑制程度最大,其次为水杨酸,再次为6-甲基香豆素、香豆素,对羟基苯甲酸对水葫芦也有明显的抑制作用,而龙胆酸、雷琐酸、阿魏酸对水葫芦的抑制作用较小.

关键词: 自然保护区, 缓冲带, 层次分析法

Abstract: This paper studied the effects of Lantana camera fresh leaves aqueous extract and its contained phenolic compounds on the growth and physiologic-biochemical indexes of Eichhornia crassipes. The results showed that this extract had obvious inhibitory effects on the growth and development of E. crassipes. When the concentration was higher than 30 g FW·L-1, it could kill E. crassipes after 6 days treatment. A total of seven phenolic compounds in the abstract were identified by HPLC, which were salicylic acid, gentisic acid, β-resorcylic acid,coumarin,ferulic acid, p-hydroxybenzoic acid and 6-methyl coumarin,with the concentrations being,50.95,13.46,5.28,3.36,2.92,2.19 and 0.34 mg·L-1, respectively. The mixture of the seven compounds had the strongest inhibitory effect, followed by salicylic acid, 6-methyl coumarin, coumarin, and p-hyroxybenzoic acid, while the effects of β-resorcylic acid and gentisic acid were not significant.

Key words: Nature reserve, Buffer zone, Analytic Hierarchy Process