Pseudomonas fluorescens PGPR bacteria as well as biocontrol agent: A review

Plant growth-promoting rhizobacteria (PGPR) are a diverse group of microorganisms that are increasingly appreciated for their contributions to primary productivity through promotion of growth and triggering of induced systemic resistance (ISR) in plants. By triggering plant defense, PGPR can make an important contribution to biocontrol of pests and pathogens of plants. Fluorescent Pseudomonas belong to plant Growth Promoting Rhizobacteria (PGPR) the important major group of bacteria that play a major role in the plant growth promotion, induced systemic resistance, biological control of pathogens. The ability of bacterial siderophores and antibiotics to suppress phytopathogens could be the significant agronomic importance. Both mechanisms have essential functions in microbial antagonism but also the mechanisms leads to elicit induced resistance. Resistance-inducing and antagonistic rhizobacteria might be useful in formulating new inoculants, offering an attractive alternate of environmentally friendly biological control of plant disease and improving the cropping systems into which it can be most profitably applied.