| Literature DB >> 17451783 |
Bibiana Silveira Moraes1, Vania Lúcia Loro, Lissandra Glusczak, Alexandra Pretto, Charlene Menezes, Enio Marchezan, Sérgio de Oliveira Machado.
Abstract
Effects of different herbicides on acetylcholinesterase (AChE), catalase and TBARS formation in teleost fish (Leporinus obtusidens) were studied. Fish were exposed during 30 days at concentrations of herbicides used in rice field. AChE activity in the brain decreased significantly after exposure to the herbicides clomazone and quinclorac. However, AChE activity increased significantly in muscle tissue after exposure to clomazone, propanil and metsulfuron methyl. Fish exposed to quinclorac, propanil and metsulfuron methyl showed TBARS decreased levels in brain and muscle tissues. However, TBARS and catalase activity increased in liver tissue after clomazone and propanil exposure. This study pointed out long-term effects on AChE activity, oxidative stress and antioxidant enzyme catalase in tissues of L. obtusidens after exposure to environmentally relevant concentrations of rice field herbicides. These parameters have been used to monitor fish toxicity in rice field system.Entities:
Mesh：
Substances：
Year: 2007 PMID： 17451783 DOI： 10.1016/j.chemosphere.2007.03.006
Source DB: PubMed Journal: Chemosphere ISSN： 0045-6535 Impact factor: 7.086