Plant Growth Promoting Rhizobacteria (PGPR): A Biological Tool for Improving Plant Health
Devesh Pathak*
Department of Plant Protection, Faculty of Agricultural Sciences, Aligarh Muslim University, Aligarh, Uttar Pradesh (202 002), India
Vaibhav Pratap Singh
Department of Plant Protection, Faculty of Agricultural Sciences, Aligarh Muslim University, Aligarh, Uttar Pradesh (202 002), India
Jyoti Sharma
Department of Life Science, University of Delhi, South Campus, New Delhi, Delhi (110 021), India
Ashish Sheera
Sher-e-Kashmir University of Agricultural Sciences & Technology, Jammu (180 009), India
DOI: NIL
Keywords: Antagonism, Biofertilizers, PGPR, Plant health
Abstract
A number of microbes such as fungi, bacteria and viruses and their microbial products that stimulate plant growth have been marketed. Among these beneficial microorganisms, we restrict ourselves to bacteria that are derived from and exert this effect on the root. Such bacteria are generally designated as Plant growth-promoting rhizobacteria (PGPR). Generally, PGPR stimulate the plant growth directly as (a) biofertilization, (b) stimulation of root growth, (c) rhizoremediation, and (d) plant stress control or indirectly by reducing the level of disease, including antibiosis, induction of systemic resistance, and competition for nutrients and niche. Such bacteria may also decrease the global dependence on hazardous pesticides which destabilize the agro-ecosystems, thereby developing an effective ways of sustainable agriculture for improving crop productivity with a minimal disturbance to the environment. In this review we explicit outlooks on the different mechanisms of rhizobacteria mediated plant growth promotion with the recent development and research.
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Reference
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