Evaluation of the antimicrobial potential of actinobacteria strains isolated from mangroves in the municipality of bragança, pará, Brazil

The actinobacteria are filamentous Gram-positive bacteria with a high content of guanine and cytosine in their genomes. They are highlighted in research on enzyme production and secondary metabolites of scientific and industrial interest in the pharmaceutical sector to produce new drugs. They are free-living organisms, denominated cosmopolitan, because they are widely distributed in terrestrial and aquatic ecosystems, due to their high adaptability, and can even be found in internal plant tissues (endophytic). The growing bacterial multi-resistance and the reduction in the effectiveness of current antibiotics do the search for new antimicrobial sources necessary. The aim of this work was to isolate and evaluate the antimicrobial potential of strains isolated from mangrove soils, leaf and root in the municipality of Bragança-PA. As results, from the 15 isolates, 13 strains, showed a good performance against the tested pathogenic bacteria - Enterococcus faecalis and Staphylococcus aureus.