Show simple item record

dc.contributor.advisorChairperson, Graduate Committee: Li Huangen
dc.contributor.authorTalajoor, Mina Rachelleen
dc.contributor.otherLi Huang, Jesse Poland and Peng Zhang were co-authors of the article, 'MNR220 mediates pre-haustorial defense response to rusts at the seedling stage' which is contained within this thesis.en
dc.contributor.otherLi Huang, Xianming Chen and Yue Jin were co-authors of the article 'A stem rust suppressor on 7DL in the spring wheat cultivar canthatch' which is contained within this thesis.en
dc.date.accessioned2015-07-07T18:31:37Z
dc.date.available2015-07-07T18:31:37Z
dc.date.issued2013en
dc.identifier.urihttps://scholarworks.montana.edu/xmlui/handle/1/9103en
dc.description.abstractWheat leaf rust, stem rust, and stripe rust are major fungal diseases of wheat caused by Puccinia triticina, P. graminis f. sp. tritici, and P. striiformis f. sp. tritici, respectively. Development of wheat varieties with genetic resistance to pathogens is a common strategy to protect against significant yield loss. However, incorporating resistance is not always straightforward, and understanding the mechanisms responsible for triggering host resistance is key. Here, were characterized two different genetic mechanisms involved in the rust resistance defense response in wheat. Two spring wheat cultivars and their respective EMS mutants, which displayed enhanced resistance to leaf, stem, and/or stripe rust, were studied. The cultivar Canthatch possesses a stem rust resistance suppressor on chromosome 7DL. We characterized the spectrum of resistance of Canthatch and the mutant CTH-NS, confirming the specificity of this suppressor is stem rust-specific. The cultivar Alpowa mutant MNR220 displays broad-spectrum resistance to a number of wheat rust races at the seedling stage. We characterized the functional resistance of MNR220 to a race of leaf rust by sampling inoculated tissues at various time points and tracking the disease progress microscopically. The mutant MNR220 confers resistance at the pre-haustorial stage; formation of haustoria is delayed or inhibited in MNR220 relative to the wild type Alpowa.en
dc.language.isoenen
dc.publisherMontana State University - Bozeman, College of Agricultureen
dc.subject.lcshWheat rustsen
dc.subject.lcshWheaten
dc.subject.lcshPlant geneticsen
dc.subject.lcshPlants Disease and pest resistanceen
dc.titleCharacterization of two different genetic mechanisms involved in the rust resistance defense response in wheaten
dc.typeThesisen
dc.rights.holderCopyright 2013 by Mina Rachelle Talajooren
thesis.catalog.ckey2737191en
thesis.degree.committeemembersMembers, Graduate Committee: Alan T. Dyer; Michael J. Giroux.en
thesis.degree.departmentPlant Sciences & Plant Pathology.en
thesis.degree.genreThesisen
thesis.degree.nameMSen
thesis.format.extentfirstpage1en
thesis.format.extentlastpage76en
mus.relation.departmentPlant Sciences & Plant Pathology.en_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record


MSU uses DSpace software, copyright © 2002-2017  Duraspace. For library collections that are not accessible, we are committed to providing reasonable accommodations and timely access to users with disabilities. For assistance, please submit an accessibility request for library material.