根际促生菌对植物生长的影响及其作用机制

Effects of Plant Growth Promoting Rhizobacteria(PGPR)on Plant Growth and Its Mechanism

长期以来,我国农业生产过度依赖化肥,忽视了植物-微生物-土壤系统巨大的生物学潜力。植物根际促生菌可以在根际释放养分,具有促进植物生长的功能,是微生物肥料的主要来源菌种,具有广阔的应用前景。在我国化肥减施政策的约束下,研究植物根际促生菌的促生特性及其作用,对于推动农业的高产和高效具有重要作用。因此,本文综述了国内外关于植物根际促生菌在促进植物生长方面的作用机制及土壤-促生菌-植物互作机制的研究进展,并对其在微生物肥料开发、应用及推动绿色农业发展中的应用进行展望。

For a long time,agricultural production in China has relied excessively on chemical fertilizers,neglecting the enormous biological potential of the plant-microbial-soil system.Plant growth promoting rhizobacteria(PGPR)can release nutrients in the rhizosphere and promote plant growth.They are the main source of microbial fertilizers and have broad application prospects.Under the policy of restricting chemical fertilizer in China,investigating the characteristics and effects of PGPR plays an important role in enhancing yield and efficiency of agricultural production.Therefore,this article reviewed the research progress on the mechanism of PGPR in promoting plant growth and the interaction mechanism between soil-PGPR-plants at home and abroad,and prospected its application in the development and application of microbial fertilizers and the promotion of green agriculture development.