Acute toxicity of azadirachtin to a teleost, Heteropneustes fossilis
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چکیده
منابع مشابه
Microcystin toxicity in a freshwater fish, Heteropneustes fossilis (Bloch)
Microcystin is a toxin secreted by cyanobacteria, which are the dominant phytoplankton in eutrophic freshwater bodies. The present study reports histopathological, hematological and biochemical changes in the freshwater fish, Heteropneustes fossilis due to toxicity of microcystin. Toxic effects were observed in liver, kidney, corpuscles of Stannius, gills and gonads. Bilirubin concentration inc...
متن کاملAcute Toxicity and Behavioural Responses of Heteropneustes Fossilis to an Organophosphate Insecticide, Dimethoate
Static renewal evaluation of the acute toxicity of an organophosphate pesticide, dimethoate against the freshwater fish H. fossilis was conducted in the laboratory. H. fossilis showed behavioural changes against dimethoate intoxication. There were increased opercular movement, sluggish, lethargic and abnormal swimming, loss of buoyancy and muscular tetany. The treated fishes also showed fading ...
متن کاملCorpuscles of Stannius of a teleost Heteropneustes fossilis following intoxication with a pyrethroid (cypermethrin)
Fresh water fish, Heteropneustes fossilis were subjected to 5.76 μg/L (0.8 of 96 h 50% lethal concentration, LC50) and 1.44 μg/L (0.2 of 96 h LC50) solution of cypermethrin for short-term (96 h) and long-term (28 days), respectively. After short-term cypermethrin exposure, the plasma calcium levels of Heteropneustes fossilis showed a decrease which persisted for 96 h. In long-term exposed fish,...
متن کاملAcute toxicity bioassay of dimethoate on freshwater airbreathing catfish, Heteropneustes fossilis (Bloch).
Pesticides are chemicals used for pest control in the agricultural fields. They finally reach the surrounding water bodies through surface runoff affecting the aquatic fauna. Dimethoate is frequently used organophosphate pesticide due to its high effectiveness and rapid breakdown into environmentally safe products. A 96 hr static acute toxicity test was carried out to determine the LC50 value o...
متن کاملUnusual hepatic mitochondrial arginase in an Indian air-breathing teleost, Heteropneustes fossilis: purification and characterization.
A functional urea cycle with both cytosolic (ARG I) and mitochondrial (ARG II) arginase activity is present in the liver of an ureogenic air-breathing teleost, Heteropneustes fossilis. Antibodies against mammalian ARG II showed no cross-reactivity with the H. fossilis ARG II. ARG II was purified to homogeneity from H. fossilis liver. Purified ARG II showed a native molecular mass of 96 kDa. SDS...
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ژورنال
عنوان ژورنال: Acta Scientiarum. Biological Sciences
سال: 2012
ISSN: 1807-863X,1679-9283
DOI: 10.4025/actascibiolsci.v34i2.9455