Selection of culture medium for phosphate solubilizing bacteria

Abstract

Culture medium for the newly isolated phosphatemobilizing bacteria – individual strains and associations – has been selected. Selection was carried out on the modifiedSzegimethodamong recommended for the cultivation of phosphatemobilizingmicroorganismsbasic and special culture media such as FPB, Muromtsevmediumand NBRIP (National Botanical Research Institute’s Phosphate growth medium). Pure liquid Muromtsevmediumwithout inoculum has been used as a control. Phosphatemobilizing bacterial activity was quantified by the diameter of the halo regions without deducting diameter wells and expressed in mm. Maximum biomass accumulation observed when ultivatedbacteria on FPB, the maximum activity for the mobilization of phosphates marked when cultivatedon NBRIP. NBRIPis recommendedfor the industrial production of biomass phosphate mobilizing bacteria.