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Please use this identifier to cite or link to this item: http://hdl.handle.net/1993/4353

Title: Fusarium head blight of wheat: evaluation of the efficacies of fungicides towards Fusarium graminearum 3-ADON and 15-ADON isolates in spring wheat and assess the genetic differences between 3-ADON isolates from Canada and China
Authors: Amarasinghe, Chami Chathurangi
Supervisor: Fernando, Dilantha (Plant Science)
Examining Committee: Brule-Babel, Anita (Plant Science) Gilbert, Jeannie (Cereal Research Centre, Agriculture and Agri-Food Canada) Tamburic-Ilincic, Lily (Plant Science)
Graduation Date: February 2011
Keywords: DON
3-ADON
15-ADON
Issue Date: 17-Jan-2011
Abstract: Fusarium head blight (FHB), caused mainly by Fusarium graminearum, is one of the most destructive global diseases of small cereal grains worldwide. The most devastating effect of this disease is the deposition of mycotoxins in the grain. Deoxynivalenol (DON) and its analogs 3-ADON, 15-ADON and NIV are the major mycotoxins produced by the fungus. The chemotype, 15-ADON is more prevalent in North America, but recently a chemotypic shift has been observed. The rapid emergence of the 3-ADON chemotype over the traditional 15-ADON chemotype is a major concern in North America. The studies in this thesis were focused on understanding the behaviour of the 3-ADON and 15-ADON chemotypes and the possible reasons for the rapid chemotypic shift.
URI: http://hdl.handle.net/1993/4353
Appears in Collection(s):FGS - Electronic Theses & Dissertations (Public)

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