[Research advances in plant growth-promoting rhizobacteria and its application prospects].

The study of plant growth-promoting rhizobacteria will provide possible methods to overcome the difficulties in controlling soil borne plant diseases. PGPR can colonize in rhizosphere at high population density, inhibit plant pathogens and deleterious microorganisms there, and promote crop growth and its yield. More importantly, some PGPR strains applied as biocontrol agents can make treated plant produce induced systemic resistance (ISR), and thus, increases plant overall health. In recent two decades, the researches of PGPR in abroad are very active, and many PGPR products have been applied successfully. In our contry, more attention should be paid to the study of the basic theory and application of GPPR and the industrialization of PGPR products.