Palabras clave
polímero
semillas oleaginosas
Fusarium equiseti
Curvularia lunata
Cómo citar
Plaudit
Resumen
Jatropha curcas es una planta con gran potencial agrícola e industrial. En este estudio se aislaron dos hongos de semillas no germinadas. Los aislamientos fúngicos se identificaron morfológica y molecularmente como Fusarium equiseti y Curvularia lunata. Los efectos del quitosano se evaluaron sobre el crecimiento micelial, esporulación y germinación de esporas de F. equiseti y C. lunata. Además, se estudió el efecto sobre la germinación de las semillas de J. curcas. Los resultados demostraron que todas las concentraciones probadas de quitosano (0.5, 1.0, 2.0 y 4.0 mg·mL-1) inhibieron el crecimiento micelial de los hongos. Las respuestas de esporulación y germinación de esporas fueron diferentes dependiendo de la especie fúngica; el quitosano inhibió completamente la esporulación C. lunata y la germinación de esporas de F. equiseti. La inoculación con F. equiseti y C. lunata redujo la germinación de semillas de J. curcas 20 y 26.6 %, respectivamente; sin embargo, la aplicación de quitosano antes de la inoculación inhibió la actividad patogénica. En conclusión, el quitosano no afectó la germinación de las semillas y causó efectos inhibitorios en F. equiseti y C. lunata. Este es el primer reporte del efecto del quitosano en J. curcas.
Citas
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Derechos de autor 2015 Revista Chapingo Serie Ciencias Forestales y del Ambiente