Phylogenetic analyses and toxigenic profiles of Fusarium equiseti and Fusarium acuminatum isolated from cereals from Southern Europe

Marín, Patricia and Moretti, Antonio and Ritieni, Alberto and Jurado García-Posada, Miguel and Vázquez, Covadonga and González Jaén, María Teresa (2012). Phylogenetic analyses and toxigenic profiles of Fusarium equiseti and Fusarium acuminatum isolated from cereals from Southern Europe. "Food Microbiology", v. 31 (n. 2); pp. 229-237. ISSN 0740-0020.

Description

Title: Phylogenetic analyses and toxigenic profiles of Fusarium equiseti and Fusarium acuminatum isolated from cereals from Southern Europe
Author/s:
  • Marín, Patricia
  • Moretti, Antonio
  • Ritieni, Alberto
  • Jurado García-Posada, Miguel
  • Vázquez, Covadonga
  • González Jaén, María Teresa
Item Type: Article
Título de Revista/Publicación: Food Microbiology
Date: September 2012
ISSN: 0740-0020
Volume: 31
Subjects:
Faculty: E.U.I.T. Agrícolas (UPM)
Department: Ciencia y Tecnología Aplicadas a la Ingeniería Técnica Agrícola [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

Full text

[img]
Preview
PDF - Requires a PDF viewer, such as GSview, Xpdf or Adobe Acrobat Reader
Download (2MB) | Preview

Abstract

Fusarium equiseti and Fusarium acuminatum are toxigenic species that contaminate cereal crops from diverse climatic regions. They are common in Spanish cereals. The information available on their phylogenetics and toxigenic profiles is, however, insufficient to assist risk evaluation. In this work, phylogenetic analyses were performed using partial sequences of the translation elongation factor gene (EF-1a) of F. equiseti and F. acuminatum strains isolated from barley and wheat from Spain and other countries. The Northern and Southern European F. equiseti strains largely separated into two phylogenetically distinct clusters. This suggests the existence of two distinct populations within this species, explaining its presence in these regions of markedly different climate. Production of type A and B trichothecenes by the Spanish strains, examined in wheat cultures using a multitoxin analytical method, indicated that F. equiseti could produce deoxynivalenol and nivalenol and other trichothecenes, at concentrations that might represent a significant risk of toxin contamination for Southern European cereals. F. acuminatum showed low intraspecific genetic variability and 58% of the strains could produce deoxynivalenol at low level. Neither species was found to produce T-2 or HT-2 toxins. The present results provide important phylogenetic and toxigenic information essential for the accurate prediction of toxigenic risk.

More information

Item ID: 15828
DC Identifier: http://oa.upm.es/15828/
OAI Identifier: oai:oa.upm.es:15828
Deposited by: Memoria Investigacion
Deposited on: 17 Jul 2013 08:04
Last Modified: 21 Apr 2016 16:08
  • Logo InvestigaM (UPM)
  • Logo GEOUP4
  • Logo Open Access
  • Open Access
  • Logo Sherpa/Romeo
    Check whether the anglo-saxon journal in which you have published an article allows you to also publish it under open access.
  • Logo Dulcinea
    Check whether the spanish journal in which you have published an article allows you to also publish it under open access.
  • Logo de Recolecta
  • Logo del Observatorio I+D+i UPM
  • Logo de OpenCourseWare UPM