Tomato growth stimulation by a microbial consortium

Abstract

Individually, strains of Trichoderma spp. and plant growth-promoting bacteria (PGPB) can be effective as biocontrol and crop growth promotion agents. However, combinations of different Trichoderma species with PGPB have been shown to be more effective than a single microorganism. Numerous studies point towards a synergistic interaction of this type of consortium, given that this combination enhances the benefits on plants. Thus, it is essential to harness this intricate network of natural interactions to create microbial consortia that substantially and consistently benefit plant growth and health, increase crop production and decrease the use of chemical compounds. The objective of the present study was to analyze the potential of the strains Pseudomonas putida PCI2 and Trichoderma harzianum ITEM 3636 to promote the growth of tomato plants under commercial field conditions and to eventually control diseases affecting this crop.