首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Biochemical and histochemical studies on the digestive gland of Eobania vermiculata snails treated with carbamate pesticides
Authors:MA Radwan  AE Essawy  NE Abdelmeguied  SS Hamed  AE Ahmed
Institution:aPesticide Chemistry Department, Faculty of Agriculture (El-Shatby), University of Alexandria, Alex., Egypt;bZoology Department, Faculty of Science, University of Alexandria, Egypt
Abstract:In this study the land snail (Eobania vermiculata), one of the most abundant gastropod of Egyptian farms, was investigated to determine the lethal toxic action of methomyl and methiocarb and to identify the biochemical and histochemical changes as a function of sublethal dose or concentration on the digestive gland of this snail under laboratory conditions, using topical application and baiting techniques. The results showed that methomyl exhibited greater efficacy than did methiocarb against the snails in both techniques. However, higher mortality rates were obtained in the topical application technique than in the poison bait experiments. Biochemical and histochemical examinations revealed that treatment of the snails with methomyl and methiocarb either by topical application or toxic baits caused significant decrease in carbohydrate, lipid and protein contents. This decrease was also more obvious after topical application than after baiting technique, and methomyl was found to be more toxic than methiocarb.
Keywords:Land snails  Eobania vermiculata  Carbamate pesticides  Toxicity  Biochemical studies  Histochemical studies
本文献已被 ScienceDirect 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号