Especies de alternaria asociadas a cultivos de manzana y pera en la Región del Alto Valle del Río Negro, Argentina

Autores/as

  • Martha Elizabeth Benavides Rozo Universidad de Boyacá
  • Virginia Fernandez Pinto Universidad de Buenos Aires
  • Graciela Pose Universidad de Quilmes

DOI:

https://doi.org/10.38017/1657463X.592

Palabras clave:

manzana, pera, micotoxinas, alternaria

Resumen

El género fúngico Alternaria contienez especies tanto saprofitas como patógenas. Como patógenos de las plantas, causan serios problemas en la agricultura, reduciendo el rendimiento del cultivo y deteriorando frutos en el almacenamiento. Las especies de este género también pueden ser micotoxicogénicas, capaces de colonizar los cultivos y acumular en los productos infectados, metabolitos secundarios que pueden afectar la salud humana y/o animal. En el presente trabajo, se muestrearon frutos de manzano (Malus domestica) y pera (Pyrus comunnis) en tres localidades del Alto Valle del río Negro (Cipolletti, General Roca y Villa Regina), a fin de determinar la presencia de especies del género Alternaria asociadas a estos cultivos en la región. Se obtuvieron un total de 267 aislamientos pertenecientes al género Alternaria. Los mismos fueron identificados por sus características morfológicas (Simmons, 2007) como iguales o similares a Alternaria tenuissima, en mayor proporción (85 %). También, fueron identificadas A. mali y A. gaisen, especies hospedador-específicas de manzana y pera, respectivamente. La importancia del presente estudio radica en que permite considerar el riesgo a la sanidad de los cultivos locales a causa de este pátogeno, y evaluar la posibilidad de la presencia de micotoxinas en frutos infectados, que pudiendo alcanzar la cadena de producción, sería un riesgo a la salud del consumidor.

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Biografía del autor/a

Martha Elizabeth Benavides Rozo, Universidad de Boyacá

Magister en Biotecnología

Virginia Fernandez Pinto, Universidad de Buenos Aires

Doctora en Química

Graciela Pose, Universidad de Quilmes

Doctora en Ciencias Biológicas

Citas

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Publicado

2019-08-05

Cómo citar

Benavides Rozo, M. E., Fernandez Pinto, V., & Pose, G. (2019). Especies de alternaria asociadas a cultivos de manzana y pera en la Región del Alto Valle del Río Negro, Argentina. Cultura Científica, (17), 18–31. https://doi.org/10.38017/1657463X.592

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Artículo de Investigación Científica y Tecnológica