Abstract

LARA, CECILIA; ESQUIVEL AVILA, LINA M  and  NEGRETE PENATA, JORGE L. NATIVE PHOSPHATE SOLUBILIZING BACTERIA TO INCREASE THE CROPS IN THE DEPARTMENT OF CORDOVA-COLOMBIA. Rev.Bio.Agro [online]. 2011, vol.9, n.2, pp.114-120. ISSN 1692-3561.

The aim of this study was to characterize and evaluate native phosphate solubilizing microorganisms from soil samples in the rural area of Cordoba. Primary isolation was performed in the middle SMRS1 in which we observed the appearance of halos of solubilization, at the same time there was a macroscopic and microscopic characterization of the colonies. Was observed, as gram-negative bacilli predominant population at a rate of 93%. We performed qualitative analysis of the strains isolated NBRIP supplemented, at this stage were selected for strains that showed greater than 3 mm IS strains selected for their ability to solubilize phosphate were reviewed using the API 20 E and API 20 NE. The isolated bacteria were: Burkoldelia cepacia, Enterobacter cloacae, Pantoea sp, Aeromonas hydrophila, Enterobacter Nakasaki. Burkoldelia cepacia was the microorganism most phosphate solubilizing capacity and was used to conduct a small trial in radish (Rhapanus sativus) seeds. It was found that a concentration of 108 CFUI mL the results were favorable for growth and fresh weight of the plant

Keywords : Burkoldelia cepacia; Phosphate solubilizing bacteria; radish (Rhapanus sativus).

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