CHARACTERIZATION OF BENEFICIAL MICROORGANISMS FOR THE BIOLOGICAL CONTROL OF RICE PATHOGENS
Prospection, identification and characterization of antagonistic microorganisms against pathogens in the rhizosphere, phyllosphere and espermosphere in rice plants in Panama was developed. For this, samples were taken from these three sections of a variety GAB 8 (Oryza sativa), in a plot under the modality of organic agriculture. Fungi and bacteria were isolated determining differences in the total of isolates for phenological phases variable (vegetative, flowering, maturation), sections of the rhizosphere (soil section, root section, soil + root interphase), sections of the phyllosphere (base, center, apex) and seeds (espermosphere). The antagonistic capacity of bacteria and fungi was evaluated against the phytopathogenic bacterium Burkholderia glumae and the fungus Pyricularia oryzae. The highest inhibitory capacity against B. glumae was observed in strains of the genus Bacillus, as well as Lactobacillus plantarum, Brevibacillus bortelensis and Aeromonas sp. The fungal strains that showed antagonistic activity against P. oryzae, correspond to Aspergillus flavus, Aspergillus niger, Aspergillus sp., Penicillium sp., Trichoderma sp. and Fusarium sp.
| Main Authors: | , , , , , , , |
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| Format: | Digital revista |
| Language: | spa |
| Published: |
Instituto de Innovación Agropecuaria de Panamá
2023
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| Online Access: | http://www.revistacienciaagropecuaria.ac.pa/index.php/ciencia-agropecuaria/article/view/615 |
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