植物根际促生菌（PGPR）的研究与应用前景

植物土传病害难以防治，植物根际促生菌(plant growth—promoting rhizobacteria，PGPR)的深入研究和发展为解决这一难题展现了诱人的前景．PGPR能够高密度地在植物根际定殖，兼有抑制植物病原菌、根际有害微生物，以及促进植物生长并增加作物产量的作用，更重要的是有些PGPR能够诱导植物产生系统抗性(induced systemic resistance，ISR)，从而提高植物整体的抗病能力．近20年来，国外这一领域的研究十分活跃，已有很多成功应用的PGPR产品，国内应大力加强基础与应用的研究，并推进其产业化的发展．

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.