PSEUDOMONAS FLUORESCENS - - A potential bio-control agent for crop diseases

摘要

Pseudomonas fluorescens is well known for biocontrol, plant growth promotion, and recognized as cm important plant growth promoting rhizobacteria (PGPR) throughout the world. It has been roughly estimated that about 2.5% of the bacteria adopted to rhizosphere environment are PGPR and P. fluorescens dominates the group. The widely recognized mechanisms of biocontrol mediated by these bacteria are competition for an ecological niche, food, production of inhibitory allelo-chemicals and induction of systemic acquired resistance in host plants against a broad spectrum of pathogens and also in increasing the endurance of plants to various abiotic stresses.