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Decreased gill ATPase activities in the freshwater fish Channa punctata (Bloch) exposed to a diluted paper mill effluent
- Source :
- Ecotoxicology and Environmental Safety. 65:62-66
- Publication Year :
- 2006
- Publisher :
- Elsevier BV, 2006.
-
Abstract
- Aquatic habitat is affected by paper mill effluent discharge in many ways. The effect of paper mill effluent on the gill ATPases was studied in freshwater fish Channa punctata (Bloch) exposed to 1%(v/v) of effluent for 15, 30, and 60 days. There was a time-dependent significant (P0.05-0.001) decrease in all the ATPase activities measured, viz., total, Na(+), K(+)--and ouabain-insensitive ATPase in gill. ATPases play an important role in maintenance of functional integrity of plasma membrane and in several intracellular functions and are considered to be a sensitive indicator of toxicity. In addition to this, branchial ATPases are intimately involved in osmoregulation, acid-base regulation, and respiration of fish. The inhibition of ATPases in gills by, e.g., paper mill effluent could cause disruption of these processes. It is suggested that measurement of ATPases could also be used as a surrogate biomarker of exposure to chemical pollutants.
- Subjects :
- Gills
Paper
Channa
Gill
Health, Toxicology and Mutagenesis
ATPase
Fresh Water
complex mixtures
Water Pollution, Chemical
Animals
Effluent
biology
business.industry
Ecology
Channa punctata
digestive, oral, and skin physiology
Fishes
Public Health, Environmental and Occupational Health
Proteins
Paper mill
General Medicine
biology.organism_classification
Pollution
Environmental chemistry
Osmoregulation
Freshwater fish
biology.protein
Sodium-Potassium-Exchanging ATPase
business
Subjects
Details
- ISSN :
- 01476513
- Volume :
- 65
- Database :
- OpenAIRE
- Journal :
- Ecotoxicology and Environmental Safety
- Accession number :
- edsair.doi.dedup.....24d57ba88bb77f2c0d26a5f0175e0a07