19287708 |
Pree DJ, Townshend JL, Cole KJ: Inhibition of Acetylcholinesterases from Aphelenchus avenae by Carbofuran and Fenamiphos. J Nematol. 1990 Apr;22(2):182-6. Exposure to carbofuran and fenamiphos for 72 hours reduced the numbers of active Aphelenchus avenae in aqueous suspension by > 75%. When nematicides were removed, many A. avenae exposed to carbofuran resumed normal movement but A. avenae treated with fenamiphos did not recover. Acetylcholinesterase (AChE) activity was suppressed by > 95% in nematodes treated with carbofuran or fenamiphos. However, 48 hours after treated nematodes had been placed in water, AChE activity in carbofuran treated populations was 98% of the levels in control nematodes. Nematodes that had been treated with fenamiphos showed only slight AChE recovery. The antidotes, atropine sulfate and 2-PAM, were largely ineffective in counteracting the toxic effects of the nematicides. |
169(2,2,3,4) |