Vol. 10, Issue 7 (2021)

Author(s):
Soumya Routray, Suman Kumari, Bornali Borah, Harsha Shelat, Jayvirsinh Pratapsinh Solanki and Veena Khanna

Abstract:
In recent Years research on the use of Rhizobium, Mesorhizobium, Bradyrhizobium, Ensifer, Sinorhizobium etc. along with potential Plant Growth Promoting Rhizobacteria (PGPRs) viz. Pseudomonas, Azospirillum, Azotobacter, Bacillus, Klebsiella, Enterobacter and Serratia in leguminous crops has been increased dramatically. Potential benefits in the co-inoculation of Rhizobium and PGPRs in various legumes have been studied both under green house as well as field conditions. Rhizobacteria enhance the efficacy of the inoculated Rhizobium, increasing nodulation as well as yield in leguminous crop. Thus, the presence of PGPRs has direct influence on competitiveness, survival and nodulating ability of seed inoculated rhizobia. In this review we will discuss about the plant microbe interaction, mechanism of nodulation and nitrogen fixation as well as several direct and indirect mechanism of PGPRs for plant growth promotion and effect of rhizobium and PGPR co-inoculation in legume.