ISOLATION AND IDENTIFICATION OF RHIZOSPHERIC MICROFLORA OF SOME MEDICINAL PLANTS

Microbiology

Plant rhizosphere is the soil nearest to the plant root system where roots release large quantity of metabolites from living root hairs or fibrous root systems. These metabolites act as chemical signals for motile bacteria to move to the root surface but also represent the main nutrient sources available to support growth and persistence in the rhizosphere. Some of the microbes that inhabit this area are bacteria that are able to colonize very efficiently the roots or the rhizosphere soil of crop plants. These bacteria are referred to as plant growth promoting rhizobacteria (PGPR). They fulfill important functions for plant growth and health by various manners. Direct plant growth promotion may result either from improved nutrient acquisition and/or from hormonal stimulation. The organisms found are P. aeruginosa, E. coli, P. vulgaris, B. subtilis, S. aureus, A. chrocochum.

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.