Chemotyping of the Fusarium graminearum isolates and variation in aggressiveness against wheat heads

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dc.contributor.authorMert-Türk, F.
dc.contributor.authorGencer, R.
dc.contributor.authorKahriman, F.
dc.date.accessioned2025-01-27T19:02:57Z
dc.date.available2025-01-27T19:02:57Z
dc.date.issued2014
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractFusarium head blight (FHB), caused mainly by Fusarium graminearum, is a devastating disease of wheat and other small grain cereals. FHB lowers grain yield and quality, and contaminates grain with mycotoxins, predominantly trichotecenes i.e nivalenol (NIV), deoxynivalenol (DON). A survey conducted at three Provinces in Turkey for FHB and 17 isolates were identified as F. graminearum using morphological and molecular markers. A PCR assay was carried out to identify the chemotypes of the isolates. Using Tri13 gene cluster, all 17 isolates that were identified to 15-AcDON type of DON chemotype. None of the isolates displayed 3-ADON or NIV chemotypes. In order to assess variation in aggressiveness among isolates, all isolates were inoculated to a susceptible wheat spikes at field conditions and disease severity and a thousand kernel weight were measured. Aggressiveness (measured as FHB severity or TKW) differed significantly among 17 F. graminearum isolates inoculated onto wheat spikes of FHB susceptible cultivar Gönen (P=0,05). Means of FHB severity ranged from 39.75 to 86.33%, averaging 63.29% in total. Reduction in TKW was also reduced significantly by different isolates. Differences in aggressiveness among isolates may due to genetic recombination, mutation or selection in the surveyed area. © 2014, Pakistan Agricultural Scientists Forum. All Rights reserved.
dc.identifier.endpage1862
dc.identifier.issn1018-7081
dc.identifier.issue6
dc.identifier.scopus2-s2.0-84918842904
dc.identifier.scopusqualityQ3
dc.identifier.startpage1858
dc.identifier.urihttps://hdl.handle.net/20.500.12428/13733
dc.identifier.volume24
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherPakistan Agricultural Scientists Forum
dc.relation.ispartofJournal of Animal and Plant Sciences
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_Scopus_20250125
dc.subjectAggressiveness; Chemotypes; DON; Fusarium graminearum; Mycotoxins; NIV; Pathogenicity
dc.titleChemotyping of the Fusarium graminearum isolates and variation in aggressiveness against wheat heads
dc.typeArticle

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