INMIBO ( EX - PROPLAME)   14614
INSTITUTO DE MICOLOGIA Y BOTANICA
Unidad Ejecutora - UE
capítulos de libros
Título:
Mycotoxins associated to Fusarium species that caused FHB in wheat in Latin-America
Autor/es:
FERNÁNDEZ PINTO, VIRGINIA; PATRIARCA, ANDREA; POSE, GRACIELA
Libro:
Fusarium head blight in wheat in Latin-America
Editorial:
Springer
Referencias:
Año: 2012;
Resumen:
Fusarium Head
Blight (FHB) is an important disease affecting the production of wheat
worldwide. Fusarium
species are causal agents of Fusarium
Head Blight (FHB) in cereals worldwide and Fusarium
graminearum (Schwabe) (teleomorph Gibberella
zeae (Schwein.) is considered the main cause of the disease. FHB
incidence reduces grain yields and also produces fungal toxins, primarily trichothecenes,
which contaminate grains used for human and animal consumption. The most common trichothecenes produced by F. graminearum are Deoxynivalenol (DON),
its acetyl derivatives 3- acetyldeoxynivalenol (3ADON) and
15-acetyldeoxynivalenol (15ADON), nivalenol (NIV), and its acetylated
derivative 4-acetyl-nivalenol (4ANIV or fusarenone X). Another point of
remarkable interest is the increase in the presence of other casual agents of
FHB as F. poae, a relatively weak pathogen compared
with F. graminearum, but capable of produce a large number of
mycotoxins, including trichothecenes of type A and B, beauvericin and enniatins.
Several toxins were identified in wheat in years of epidemic FHB development.
All reports showed the preponderance of DON. Surveys
on Fusarium mycotoxins in small-grain cereals and their by-products are
frequently conducted in the major production regions of the world such as North
America and Europe but information in South America is scarce and previous
evidence had placed DON as the main Fusarium toxin detected in wheat and by-products
in Argentina, Brazil and Uruguay.