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Effects of drought stress on early white pine blister rust development in limber pine

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dc.contributor.authorBertram, Jonathan H., author
dc.contributor.authorStewart, Jane E., advisor
dc.contributor.authorScoettle, Anna W., advisor
dc.contributor.authorBorlee, Brad, committee member
dc.contributor.authorOcheltree, Troy, committee member
dc.date.accessioned2022-05-30T10:21:47Z
dc.date.available2023-05-24T10:21:47Z
dc.date.issued2022
dc.description.abstractClimate change and forest pathogens are expected to interact as incidences of drought increase and affect the disease triangle between hosts, pathogens, and the environment. Trees will become physiologically affected by drought stress and primary pathogens such as fungal biotrophs will experience drought stress as mediated through the host. White pine blister rust, caused by the non-native pathogen Cronartium ribicola, is a devastating fungal pathogen, and little is known about how it will perform (measured by fungal growth or disease severity) within pine hosts experiencing unusual drought. This study aimed to address some of the unknown aspects of this interaction by performing a greenhouse drought × pathogen experiment with Pinus flexilis seedlings, measuring host physiology, quantifying specific aspects of pathogen performance, and looking for interactive effects. Watering treatments consisting of well-watered, mild chronic drought, or severe acute drought were applied to 432 seedlings; after 3 months, a subset of 198 seedlings were inoculated with C. ribicola basidiospores under ideal inoculation conditions, after which watering treatments continued for a further 9 months. Specific rust performance measurements included mycelial growth via relative rust DNA quantification and ratings of disease severity by watering treatment.
dc.format.mediumborn digital
dc.format.mediummasters theses
dc.identifierBertram_colostate_0053N_17219.pdf
dc.identifier.urihttps://hdl.handle.net/10217/235251
dc.languageEnglish
dc.language.isoeng
dc.publisherColorado State University. Libraries
dc.relation.ispartof2020-
dc.rightsCopyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.
dc.subjectdrought
dc.subjectqPCR
dc.subjectpine physiology
dc.subjectblister rust
dc.titleEffects of drought stress on early white pine blister rust development in limber pine
dc.typeText
dcterms.embargo.expires2023-05-24
dcterms.embargo.terms2023-05-24
dcterms.rights.dplaThis Item is protected by copyright and/or related rights (https://rightsstatements.org/vocab/InC/1.0/). You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
thesis.degree.disciplineEcology
thesis.degree.grantorColorado State University
thesis.degree.levelMasters
thesis.degree.nameMaster of Science (M.S.)

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