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

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dc.contributor.advisor Hsiang, Tom
dc.contributor.advisor Thorn, Greg de la Cerda, Karla Adriana 2011-09-19T14:02:40Z 2011-09-19T14:02:40Z 2011-09 2011-09-13 2011-09-19
dc.description Waitea circinata varieties were characterized using molecular, morphological, physiological and pathological techniques. en_US
dc.description.abstract The 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.sponsorship Ontario Turfgrass Research Foundation, CONACYT (Ministry of Science from Mexico) en_US
dc.language.iso en en_US
dc.subject Fungal en_US
dc.subject Rhizoctonia en_US
dc.subject Pathogenicity en_US
dc.subject Taxonomy en_US
dc.subject Phylogenetics en_US
dc.title Morphological And Pathogenic Analyses Of Varieties Of Waitea Circinata And Their Rhizoctonia Anamorphs en_US
dc.type Thesis en_US Environmental Biology en_US Master of Science en_US Department of Environmental Biology en_US
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