[A comparative study of the effect of vinyl phosphoric acid esters on cholinesterase and carboxylesterase activities in mammals and arthropods].

Studies have been made of the effect of organophosphorus inhibitors on cholinesterase and carboxylesterase from various mammals (human erythrocytes, mouse brain, blood serum of mouse and rat, blood serum of horse) and arthropods (Calliphora vicina, Schizaphis graminum, Myzus persicae, Sitophilus oryzae, Pseudococcus maritimus, Tetranychus urticae). Organophosphorus inhibitors were presented by esters of vynylphosphoric acid containing normal and branched alkyls in the phosphoryl part of the molecule. The increase of the radical up to a propyl one increased the effect of organophosphorus inhibitors with respect to cholinesterase from the majority of the arthropods investigated.