Propanil Hydrolysis: Inhibition in Rice Plants by Insecticides

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Science  21 Jun 1968:
Vol. 160, Issue 3834, pp. 1360-1361
DOI: 10.1126/science.160.3834.1360


Hydrolysis of the herbicide propanil (3', 4'-dichloropropionanilide) by rice plants is inhibited by insecticides. The inhibitory activity of an organophosphate such as paraoxon in vivo and in vitro is significantly stronger than that of an organothiophosphate such as parathion. The injury to rice plants by insecticides sprayed on them with propanil seems to be caused by the inhibition of the propanil detoxifying enzyme.

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