Inhibition of acetylcholinesterase activity in the central nervous system of the red swamp crayfish, Procambarus clarkii, by mercury, cadmium, and lead
Red swamp crayfish (Procambarus clarkii) were exposed to sub-lethal concentrations of mercury (0.02 ppm), cadmium (5 ppm) or lead (100 ppm) and after 24 and 48 h analyses were made of acetylcholinesterase (AChE) activity in brain and ventral nerve cord. There were significant decreases in AChE activ...
Gespeichert in:
Veröffentlicht in: | Bulletin of Environmental Contamination and Toxicology 1995-11, Vol.55 (5), p.746-750 |
---|---|
Hauptverfasser: | , |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | Red swamp crayfish (Procambarus clarkii) were exposed to sub-lethal concentrations of mercury (0.02 ppm), cadmium (5 ppm) or lead (100 ppm) and after 24 and 48 h analyses were made of acetylcholinesterase (AChE) activity in brain and ventral nerve cord. There were significant decreases in AChE activity, compared with controls. Mercury caused decreases of 28.81 and 28.66 per cent after 24 and 48 h, respectively; cadmium caused decreases of 36.48 and 27.17 per cent and lead caused decreases of 43.44 and 48.78 per cent. AChE activity in crayfish might be useful as a biomarker of heavy metal pollution, although lead did not affect the crayfish as strongly as mercury or cadmium. |
---|---|
ISSN: | 0007-4861 1432-0800 |
DOI: | 10.1007/BF00203762 |