Reports on the production of antimicrobial substances by AMF are not common. However, recently, it was shown that antimicrobial substances (unidentified) produced by the extraradical mycelium of the AMF species G. intraradices reduced conidial germination of F. oxysporum f. sp. chrysanthemi, which was independent of changes in pH (Filion et al. 1999). Budi et al. (1999) isolated a Paenibacillus sp. strain from the mycorrhizosphere of Sorghum bicolor plants inoculated with G. mosseae that exhibited significant antagonism against P. parasitica. Regardless of the source of these biocontrol activities, it is important to realize and utilize the significance of AMF in plant disease control. Additional research in this are may prove to be fruitful in the control of pathogenic bacteria and fungi.

Growing Soilless

Growing Soilless

This is an easy-to-follow, step-by-step guide to growing organic, healthy vegetable, herbs and house plants without soil. Clearly illustrated with black and white line drawings, the book covers every aspect of home hydroponic gardening.

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