Trichoderma harzianum
harzianum grows faster on the surface of the root than soil borne pathogenic fungi, which get no change to establish themselves on the roots. Competition [...] this fungus produces enzymes and metabolites that have antagonistic effects on plant pathogens, such as fungi, bacteria, and nematodes. Trichoderma harzianum [...] range of secondary metabolites and enzymes that have antagonistic effects on plant pathogens. These metabolites and enzymes can directly inhibit the growth