Viability and efficiency of Pantoea brenneri strains as phosphate solubilizing bacteria

Abstract

Phytate-degrading microorganisms with the ability to solubilize inorganic soil phosphates can serve as the basis of bio-fertilizer. Four lowcost liquid compositions were examined for viability of Pantoea brenneri strains 3.2 and 3.5.2 stored at room temperature and at 4°C for six months. By the end of the experiment, the highest cell survival rate for both P. brenneri strains 3.2 and 3.5.2 at 4°С and at 25°С was ensured by a LB broth supplemented with glycerol. Moreover, strains maintained the highest phosphate solubilizing index in this composition as well.