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Inhibition and recovery of cholinesterases in Odontophrynus americanus tadpoles exposed to fenitrothion.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Lajmanovich, Rafael Carlos Attademo, Andrés Maximiliano Peltzer, Paola Mariela Junges, Celina María |
| Copyright Year | 2009 |
| Abstract | We determined the levels of brain acetylcholinesterase (AChE) and tail butyrylcholinesterase (BChE) activities in tadpoles of Odontophrynus americanus exposed to a commercial formulation of fenitrothion. The mean brain AChE activities in the controls tadpoles varied from 6.91 to 6.39 micromol min(-1) mg(-1) protein, whereas tail BChE activities ranged among 0.26 to 0.17 micromol min(-1) mg(-1) protein; the two sublethal concentrations of fenitrothion assayed produced AChE and BChE inhibition (p < 0.01). Brain AChE recovered a substantial level of activity with a maximum of 93.2%; after the transference of tadpoles to a free-pesticide solution, whereas tail BChE recovery showed a smaller increase (39%) in the activity at 168 hr after to transference to clear water. According with our results, we suggest that tadpole's tail BChE presents higher sensibility than brain AChE. |
| File Format | PDF HTM / HTML |
| PubMed reference number | 20143730 |
| Journal | Medline |
| Volume Number | 30 |
| Issue Number | 5 |
| Alternate Webpage(s) | http://www.jeb.co.in/journal_issues/200909_sep09_supp/paper_26.pdf |
| Journal | Journal of environmental biology |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
