Authors: TingTing Zhang ChunYan Zheng Wei Hu WenWu Xu HaoFen Wang
Publish Date: 2009/03/20
Volume: 22, Issue: 1, Pages: 71-77
Abstract
Cyanobacterial contamination of water has been a serious problem in recent years Thus the effective control of undesired cyanobacteria has become an urgent issue We studied therefore the effects of ρcoumaric acid and vanillic acid on toxic Microcystis aeruginosa and the allelopathic mechanisms The results showed that the growth of toxic M aeruginosa was significantly inhibited by ρcoumaric acid and vanillic acid with an EC50 of 026 ± 007 and 034 ± 005 mmol L−1 respectively Our data also demonstrated that both ρcoumaric acid and vanillic acid triggered the generation of superoxide anion radicals O2 •− The O2 •− might induce a lipid peroxidation which may change cell membrane penetrability thereby leading to the eventual death of M aeruginosa Our current studies further provide evidence that some phenolic acids such as ρcoumaric acid and vanillic acid may be a potential effective solution for aquatic management
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