Selective effects of two triazine herbicides on Egyptian soil fungi

Monitoring of atrazine treatment on soil bacterial, fungal and atrazine‐degrading communities by quantitative competitive PCR

“…Therefore, the pre‐treatment of soil with atrazine did not modify significantly the behaviour of either soil bacterial or fungal microflora in response to atrazine treatment. These results are in accord with previous studies showing that atrazine produces a transient negative effect on soil fungal microflora 20…”

“…However, although the microbial degradation pathway of atrazine is now well described, documentation of the impact of this herbicide on the soil microflora remains contradictory. Thus, atrazine, which is an inhibitor of the photosynthesis, has been reported to strongly depress cyanobacteria, to transiently affect the soil fungal microflora and to alter denitrifying microflora 18–22. In addition, it is usually admitted that exposure of soil to the herbicide promotes the abundance and activity of atrazine‐degrading micro‐organisms, and that repeated field applications of this herbicide increases its rate of mineralisation 8.…”

<i>In vitro</i> Evaluation of Growth Inhibition of Some Common Soil Fungi by Selective and Non-selective Herbicides

“…Variation in the degree of mycelial growth inhibition may be attributed to the differential toxicity of the herbicides arising from their chemical composition and the degradative capacity of the respective fungi. Fungi may either degrade herbicides or get affected adversely by their presence depending on the type of herbicide [15,16].…”