Beneficial Plant Growth Promoting Rhizobacteria in Rhizosphere, its Applications and Plant Growth: A Review

Rhizosphere is soil nearest area to root system that inhabits the microorganisms and capable to colonize very well to the roots. These microorganisms are stated as plant growth promoting rhizobacteria (PGPR). Plants depend upon valuable interactions between these microbes and roots for growth promotion, nutrient availability and disease suppression and they fulfil vital functions for plant growth. Many secrets of microorganisms in the rhizosphere are recently discovered due to the massive advancement in the molecular and other microscopic tools. This paper describes current knowledge on the development, maintenance and interaction of microbial communities and the diverse mechanisms commonly used by the most PGPR in rhizosphere that are beneficial to plant growth and development. Furthermore, this study describes the plant growth development by single and number of inoculations of PGPR and mycorrhizal fungi as well as the factor affecting the microbiomes in the rhizosphere have also describe and reviewed completely.