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Screening of Fusarium graminearum Isolates for Enzymes Extracellular and Deoxynivalenol Production
Joint Authors
Alconada, Teresa M.
Kikot, Gisele E.
Ortega, Leonel M.
Astoreca, Andrea L.
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-12-05
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Fusarium graminearum, the main etiological agent of Fusarium head bligh, has high intraspecific genetic diversity, which is related to the variability in the aggressiveness among isolates against wheat.
The aggressiveness involves different mechanisms as the production and liberation of extracellular enzymes and mycotoxins.
In the present paper, several F.
graminearum isolates obtained from wheat spikes from Pampas region, Argentina, were screened for polygalacturonase (pectinase), proteolytic, and lipase extracellular enzymatic activities production, as well as for the capacity to produce deoxynivalenol.
The enzymatic production in terms of magnitude was varied among isolates, which could be related to a differential capacity to infect wheat.
Both polygalacturonase as proteolytic activities had a maximum activity in the first days of incubation.
Instead, the lipase activity reached its maximum activity after advanced incubation time.
Deoxynivalenol production was delayed over time with respect to the first enzymatic activities, which would infer its relation to the progress of the disease in the host, more than with the early stages of infection.
The characterization carried out in this research would allow us to apply a selection criterion among isolates for further research.
American Psychological Association (APA)
Ortega, Leonel M.& Kikot, Gisele E.& Astoreca, Andrea L.& Alconada, Teresa M.. 2013. Screening of Fusarium graminearum Isolates for Enzymes Extracellular and Deoxynivalenol Production. Journal of Mycology،Vol. 2013, no. 2013, pp.1-7.
https://search.emarefa.net/detail/BIM-465588
Modern Language Association (MLA)
Ortega, Leonel M.…[et al.]. Screening of Fusarium graminearum Isolates for Enzymes Extracellular and Deoxynivalenol Production. Journal of Mycology No. 2013 (2013), pp.1-7.
https://search.emarefa.net/detail/BIM-465588
American Medical Association (AMA)
Ortega, Leonel M.& Kikot, Gisele E.& Astoreca, Andrea L.& Alconada, Teresa M.. Screening of Fusarium graminearum Isolates for Enzymes Extracellular and Deoxynivalenol Production. Journal of Mycology. 2013. Vol. 2013, no. 2013, pp.1-7.
https://search.emarefa.net/detail/BIM-465588
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-465588