BIOLOGICAL RELATIONSHIPS AMONG Fusarium graminearum s.l. ISOLATES FROM DIVERSE HOSTS AND ENVIRONMENTS OF ARGENTINA

Fusarium graminearum (teleomorph Gibberella zeae) is an important plant pathogen that causes diseases on roots, stems, fruits, and seeds of diverse plant families. The fungus obtains nutrients through saprotrophic and parasitic relationships. Mycotoxins produced by F. graminearum, which can be found...

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Published in:Chilean journal of agricultural & animal sciences 2023-01, Vol.39 (2), p.217-227
Main Authors: Peruzzo, Alejandra María, Pioli, Rosanna Nora, Martínez, Luisina Paula, Hernández, Facundo Ezequiel, Cairo, Carlos Alberto
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container_title Chilean journal of agricultural & animal sciences
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Pioli, Rosanna Nora
Martínez, Luisina Paula
Hernández, Facundo Ezequiel
Cairo, Carlos Alberto
description Fusarium graminearum (teleomorph Gibberella zeae) is an important plant pathogen that causes diseases on roots, stems, fruits, and seeds of diverse plant families. The fungus obtains nutrients through saprotrophic and parasitic relationships. Mycotoxins produced by F. graminearum, which can be found in contaminated grains and flours, constitute a threat to human and animal health. The aim of this study was to infer biological relationships among isolates of F. graminearum, obtained from different botanic hosts and locations of the central region of Argentina, by assessment of biodiversity from morphological and molecular markers. F. graminearum (local isolates and a foreign control isolate) established closed morphological and molecular (genetic) relationships beyond the diversity of origin. The identity of the collection was validated as F. graminearum -sensu lato- and it was the predominant specific-clade in the analyzed population. Furthermore, the capacity of F. graminearum to adapt to diverse plant substrates (Fabaceae, Poaceae, Asteraceae and Rosaceae families) and ecologic environments (between 30 and 36 south latitude) observed in this study revealed the large plasticity of this fungus in Argentina.
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title BIOLOGICAL RELATIONSHIPS AMONG Fusarium graminearum s.l. ISOLATES FROM DIVERSE HOSTS AND ENVIRONMENTS OF ARGENTINA
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