The role of plant hormones in Fusarium Head Blight of wheat

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dc.contributor.authorPordel, Reyhaneh
dc.contributor.supervisorForoud, Nora Afsaneh
dc.contributor.supervisorKovalchuk, Igor
dc.date.accessioned2018-01-23T16:40:16Z
dc.date.available2018-01-23T16:40:16Z
dc.date.issued2017-09-10
dc.degree.levelMastersen_US
dc.description.abstractFusarium Head Blight (FHB) is a devastating disease of cereals caused by a group of trichothecene-producing fungi belonging to the Fusarium genus. In plant-pathogen interactions, hormones (salicylic acid, jasmonic acid and ethylene) modulate a series of defence responses, including expression of pathogenesis-related (PR) genes, which limit pathogen spread or obliterates it entirely. The gene expression data from three wheat genotypes presented in this thesis suggests that PR gene regulation by plant hormones may be genotype-dependent in wheat. Exogenous application of ethylene activators/inhibitors in six wheat genotypes with different level of resistance to FHB showed that ET plays a positive role in the resistance response. A similar response was observed in Fusarium seedling blight (FSB) disease assays, where exogenous chemical treatments showed that ethylene is involved in a resistance response. In addition, SA was shown to play a positive role in resistance to FSB, while MeJA increased susceptibility.en_US
dc.embargoNoen_US
dc.identifier.urihttps://hdl.handle.net/10133/5013
dc.language.isoen_USen_US
dc.proquest.subject0479en_US
dc.proquest.subject0480en_US
dc.proquestyesYesen_US
dc.publisherLethbridge, Alta. : University of Lethbridge, Dept. of Biological Sciencesen_US
dc.publisher.departmentDepartment of Biological Sciencesen_US
dc.publisher.facultyArts and Scienceen_US
dc.relation.ispartofseriesThesis (University of Lethbridge. Faculty of Arts and Science)en_US
dc.subjectFungal diseases of plantsen_US
dc.subjectFusarium diseases of plantsen_US
dc.subjectWheaten_US
dc.subjectWheat fusarium culmorum head blighten_US
dc.titleThe role of plant hormones in Fusarium Head Blight of wheaten_US
dc.typeThesisen_US
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