Pesticidal Impact on the Protein Metabolism of Freshwater Field Crab,Oziotelphusa Senex Se

Pesticidal Impact on the Protein Metabolism of Freshwater Field Crab,Oziotelphusa Senex Senex

（Fabricius）

K.RADHAKRISHNAIAH;B.SIVARAMAKRISHNAtffu

【期刊名称】《生物医学与环境科学：英文版》 【年(卷),期】1995(008)002

【摘要】The total protein increased in the gills and decreased in the muscle of the freshwater field crab Oziotelphusa senex senex at days 1 and 2 on eposure to lethal concentrations and at days 1 and 10 to sublethal concentrations of furadan,endosulfan,chlorpyrifos,and a mixture of these three in a 100:1:1 ratio.The increase in the gill protein was greater on exposure to the sublethal concentrations than to the lethal concentrations while the decrease in the muscle protein was greater on exposure to the lethal concentrations than to the sublethal concentrations.In the hepatopancreas,the protein content decreased on exposure to the lethal concentrations,but,in contrast,increased on exposure to the sublethal concentrations.These results clearly indicate that changes in the protein content are not only organ-deendent but also concentration-dependent.i.e.,lethal versus sbulethal.Irrespective of the changes in the total protein,the levels of free amino acids and the activities of protease,alanine and aspartate aminortransferases,and glutamate dehydrogenase increased in all the three organs o the crabs

exposed to the lethal and sublethal concentrations,(more in lethal than in sublethal)and increased at a greater rate over time of exposure.Ammonia toxicity,measured by an increase in the hemolymph ammonia and a decrease in the urea,was also observed at the lethal concentrations of all the three pesticides.The ammonia and urea levela increased

in

the

crabs

exposed

to

the

sublethal

concentrations.Although the effect of each pesticide on the protein metabolism was similar,the degree of toxicity was the lowest ox exposure to furadan,intermediate on exposure to endosulfan and chlorpyrifos,and cumulative on exposure to a mixture of the three pesticides.

【总页数】12页(P.137-148)

【关键词】杀虫剂;淡水蟹;蛋白质代谢;影响

【作者】K.RADHAKRISHNAIAH;B.SIVARAMAKRISHNAtffu 【

作

者

单

位

】

DepartmentofZoology,SriKrishnadevarayaUniversity,Anantapur515003,A.P.,India;DepartmentofZoology,SriKr 【正文语种】英文 【中图分类】X503.225 【文献来源】

https://www.zhangqiaokeyan.com/academic-journal-cn_biomedical-environmental-sciences-english_thesis/0201268257184.html

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