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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Soil is rich in microbial diversity comprising of both harmful as well as beneficial microbes. Some of them have deleterious effects on plants whereas some support their host plant by mobilizing nutrients, secreting plant hormones, reducing biotic and abiotic stresses, increasing yield, etc. The microbes which colonize plant roots include bacteria, fungi, algae, protozoa and actinomycetes. Out of these, bacteria are the ones present in abundance. One such group of beneficial bacteria is the plant growth-promoting rhizospheric bacteria (PGPR) that help in supporting plant growth. These bacteria are found near the roots of plants and grow on root exudates. Rhizospheric bacteria which colonize roots not only exert growth-promoting effects but also have positive effects on controlling plant pathogenic microorganisms. This review compiles different mechanisms of growth promotion by PGPR.