[Inhibitory effects of Lantana camera and its contained phenolic compounds in Eichhornia crassipes growth].
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 x 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, beta-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 x L(-1), respectively. The mixture of the seven compounds had the strongest inhibitory effect, followed by salicylic acid, 6-methyl coumarin, coumarin, and p-hydroxybenzoic acid, while the effects of beta-resorcylic acid and gentisic acid were not significant.
Yi
Zhen
Z
Laboratory of Insect Ecology, South China Agricultural University, Guangzhou. yzscut@sohu.com
Zhang
Maoxin
M
Ling
Bing
B
Xu
Di
D
Ye
Jingzhong
J
D031806:Eichhornia / Q000187:drug effects / Q000254:growth & development*; D032410:Lantana / Q000737:chemistry*; D010636:Phenols / Q000302:isolation & purification / Q000494:pharmacology; D010936:Plant Extracts / Q000302:isolation & purification / Q000494:pharmacology*; D010937:Plant Growth Regulators / Q000302:isolation & purification / Q000494:pharmacology*
D010636:Phenols; D010936:Plant Extracts; D010937:Plant Growth Regulators