%0 Journal Article %T PHOSPHATE-SOLUBILISING RHIZOBACTERIA ASSOCIATED WITH PHASEOLUS COCCINEUS L. RHIZOSPHERE %A Marius Stefan %A GABRIELA MIHALACHE %A NECULAI MUNTEANU %A SIMONA DUNCA %J Analele £¿tiin£¿ifice Ale Universit£¿£¿ii Alexandru Ioan Cuza din Ia£¿i,Sectiunea II A : Genetica si Biologie Moleculara %D 2012 %I Alexandru Ioan Cuza University of Iasi %X Native phosphate solubilizing bacteria were isolated from runner bean rhizosphere in order to study their effect on releases of soluble phosphorus from inorganic P sources. 34.37% of the rhizobacteria isolates solubilized CaHPO4 in the qualitative P-solubilization plate method after seven days of incubation. The best PSB isolates were selected for further study concerning P-solubilization in liquid culture. All these isolates showed higher potential for solubilization of inorganic P as indicated by the increase of P amount in the RPAM medium. Our results showed that PSB strains play a significant role in the acidification of the medium facilitating the P solubilization probably due to organic acid production. %K rhizobacteria %K phosphate solubilisation %K runner bean %K biofertilizer %U http://www.gbm.bio.uaic.ro/index.php/gbm/article/view/978