Morphological And Pathogenic Analyses Of Varieties Of Waitea Circinata And Their Rhizoctonia Anamorphs

dc.contributor.advisorHsiang, Tom
dc.contributor.advisorThorn, Greg
dc.contributor.authorde la Cerda, Karla Adriana
dc.date.accessioned2011-09-19T14:02:40Z
dc.date.available2011-09-19T14:02:40Z
dc.date.copyrightSep-11
dc.date.created2011-09-13
dc.date.issued2011-09-19
dc.degree.departmentDepartment of Environmental Biologyen_US
dc.degree.departmentGuelph Turfgrass Instituteen_US
dc.degree.grantorUniversity of Guelphen_US
dc.degree.nameMaster of Scienceen_US
dc.degree.programmeEnvironmental Biologyen_US
dc.descriptionWaitea circinata varieties were characterized using molecular, morphological, physiological and pathological techniques.en_US
dc.description.abstractThe species complex, Waitea circinata (WC) has been currently divided into five cultural types: var. circinata, var. oryzae, var. zeae, var. agrostis, and var. prodigus. These divisions are currently based on differences in their sclerotial morphology which have been supported by differences in their internal transcribed spacer region. Physiological differences such as optimal growth temperature, and morphological and pathogenic analyses as well as molecular biological techniques, were used to examine a broad WC collection coming from different geographic regions, and different susceptible hosts. The pathogenic examination showed that WC varieties are not host specific and can successfully infect both turfgrasses and cereals. Phylogenetic trees based on Neighbor-joining (NJ) and Maximum likelihood (ML) methods for three genomic regions (ITS, beta-tubulin, IGS1) showed support for only three of the five WC cultural types that have been described, namely Waitea circinata var. circinata, var. oryzae and var. zeae."en_US
dc.description.sponsorshipOntario Turfgrass Research Foundation
dc.description.sponsorshipCONACYT (Ministry of Science from Mexico)
dc.identifier.urihttp://hdl.handle.net/10214/3034
dc.language.isoenen_US
dc.publisherUniversity of Guelphen_US
dc.rights.licenseAll items in the Atrium are protected by copyright with all rights reserved unless otherwise indicated.
dc.subjectFungalen_US
dc.subjectRhizoctoniaen_US
dc.subjectPathogenicityen_US
dc.subjectTaxonomyen_US
dc.subjectPhylogeneticsen_US
dc.titleMorphological And Pathogenic Analyses Of Varieties Of Waitea Circinata And Their Rhizoctonia Anamorphsen_US
dc.typeThesisen_US

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