Particular bacterial strains in certain natural environments prevent infectious diseases of plant. How these bacteria achieve this protection from pathogenic fungi has been analysed in detail by BIOBAB. During root colonization, these bacteria produce antibiotics, elicit induced systemic resistance in the host plant or interfere specifically with fungal pathogenicity factors.
Also due to competition, and hormone production, the colonization of the rhizosphere by the beneficial bacteria confine the pathogenic bacteria and reduces their development.
Plant Growth-Promoting Rhizobacteria can protect plants from pathogen infection (biotic stress):
Occupying the same ecological niche
Competing with pathogens for nutrients
Synthesizing chitinase enzymes
Activating Induced Systemic Resistance