Insight Into the Role of PGPR in Sustainable Agriculture and Environment

A multitude of roles is played by microbes in food and agriculture that include nutrient cycling management, organic matter decomposition fermentation. Plant growth promoting rhizobacteria (PGPR), representing microbial groups with ability colonizing plant roots, influence through various indirect direct modes order to promote its and/or protect it from diseases or damage due insect attack. Thus, PGPR research has received renewed interest worldwide. Increasing number crop-specific are being commercialized these days. Approaches like seed-inoculation soil application either alone combination bacterial culture/product for increased availability phosphate solubilisation, potassium sulfur oxidation, nitrogen fixation, iron, copper chelation gaining popularity. Arbuscular mycorrhizal fungi (AMF) root fungal symbiont improve management abiotic stress such as phosphorus deficiency. involves production indole acetic acid (IAA), ammonia (NH 3 ), hydrogen cyanide (HCN), catalase, etc. also uptake altering the level hormone enhances surface area increasing girth shape, thereby helping absorbing more nutrients. facilitate seed germination, seedling crop yield. An array including Pseudomonas, Azospirillum, Azotobacter, Klebsiella, Enterobacter, Alcaligenes, Arthrobacter, Burkholderia, Bacillus , Serratia enhance growth. Various Pseudomonas sp. have demonstrated significant increase yield different agricultural crops, wheat. Hence, developing a successful formulation, candidate should possess characteristics high rhizosphere competence, extensive competitive saprophytic ability, enhancing ease mass production, broad-spectrum action, safety toward environment compatibility other partnering organisms.