Phosphate solubilization by bacteria and fungi grown in broth media (glucose-yeast extract/GYE) supplied with phosphate (Ca-P, Al-P and Fe-P) and carbon sources (cellulose, starch, sucrose, glucose, fructose and xylose) was evaluated under laboratory conditions. Growth, halo diameter, colony diameter and halo/colony ratio varied according to the microorganisms and phosphate or carbon sources. From 57 isolates, 56 were able to solubilize Ca-P with differing halo diameters, five succeeded to solubilize Al-P at different ranges and none was able to solubilize Fe-P. […]