Artículo
Response of the fungus Pseudocercospora griseola f. mesoamericana to Tricyclazole
Bárcena, Alejandra
; Petroselli, Gabriela
; Velásquez, Silvia Melina
; Estevez, Jose Manuel
; Erra Balsells, Rosa
; Balatti, Pedro Alberto; Saparrat, Mario Carlos Nazareno
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Fecha de publicación:
08/2015
Editorial:
Springer Heidelberg
Revista:
Mycological Progress
ISSN:
1617-416X
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Pseudocercospora griseola, an anamorph of Mycosphaerella, causes Angular Leaf Spot (ALS). The mycelia and conidia from P. griseola are coloured due to the synthesis of 1,8 dihydroxynaphthalene (DHN)-melanin. The aim of this work was to identify in P. griseola f. mesoamericana isolate T4, a highly pigmented fungus, intermediary compounds as a result of the inhibition of melanin synthesis by tricyclazole, and to analyze at the structural level the localization of these dark pigments. The main metabolites were analyzed using ultraviolet matrix-assisted laser desorption-ionization mass spectrometry (UV–MALDI MS). Tricyclazole affected P. griseola f. mesoamericana in several different ways. The most evident effect was the reduction of melanin synthesis, and therefore diffusible shunt products were found and identified. Flaviolin was the main intermediate metabolite found in cultures supplemented with tricyclazole. This inhibitor, which affected pigmentation and the cell wall structure of mycelium, revealed macroscopically by the reduction in growth, decreased the stratification and deposition of melanin in the hyphal wall. These results suggest a possible role of tricyclazole to control ALS.
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Colecciones
Articulos(CIHIDECAR)
Articulos de CENTRO DE INVESTIGACIONES EN HIDRATOS DE CARBONO
Articulos de CENTRO DE INVESTIGACIONES EN HIDRATOS DE CARBONO
Articulos(IIBBA)
Articulos de INST.DE INVEST.BIOQUIMICAS DE BS.AS(I)
Articulos de INST.DE INVEST.BIOQUIMICAS DE BS.AS(I)
Articulos(INFIVE)
Articulos de INST.DE FISIOLOGIA VEGETAL
Articulos de INST.DE FISIOLOGIA VEGETAL
Citación
Bárcena, Alejandra; Petroselli, Gabriela; Velásquez, Silvia Melina; Estevez, Jose Manuel; Erra Balsells, Rosa; et al.; Response of the fungus Pseudocercospora griseola f. mesoamericana to Tricyclazole; Springer Heidelberg; Mycological Progress; 14; 9; 8-2015; 1-11
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