Pleurotus Ostreatus and Trametes Versicolor Fungi to Decontaminate Soils Containing Organophosphates Methamidophos and Cadmium

Abstract

The intensive use of agricultural soils and the appearance of pests on crops make it necessary to use pesticides to achieve crop production. As a consequence of this, soils accumulate polluting elements that are incorporated into agricultural insecticides, one of them being Methamidophos, which is an insecticide belonging to the group of organophosphate pesticides. One of the methods to reduce this contaminant that have been tested recently is mycoremediation, which consists of the use of fungi. The investigation evaluated the use of the white rot fungi Pleurotus ostreatus and Trametes versicolor to decontaminate soil with Methamidophos and cadmium. The research design was experimental, with three treatments and three replicates: Treatment A using the Pleurotus ostreatus fungus, treatment B using the Trametes versicolor fungus, and treatment C using the two aforementioned fungi; It was also supplemented with eucalyptus sawdust plant substrate. The result was a decrease of Methamidophos 64 % to 73 % and Cadmium by 99.3 %. This method of remediation is a friendly alternative to the environment and low economic cost, easy to apply and good results are achieved.