Abiotic stressors in the dogwood anthracnose complex

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dc.contributor.authorCrozier, James Brooksen
dc.contributor.committeechairStipes, R. Jayen
dc.contributor.committeememberBaudoin, Antonius B.en
dc.contributor.committeememberWarren, Herman L.en
dc.contributor.departmentPlant Pathology, Physiology, and Weed Scienceen
dc.date.accessioned2014-03-14T21:52:26Zen
dc.date.adate2009-12-23en
dc.date.available2014-03-14T21:52:26Zen
dc.date.issued1994-03-15en
dc.date.rdate2009-12-23en
dc.date.sdate2009-12-23en
dc.description.abstractAcidic precipitation reportedly enhances disease severity of dogwood anthracnose (DA) caused by Discula destructiva, on Cornus florida, the flowering dogwood. Seedlings were subjected to acidic fog episodes at pHs 2.5, 3.5, 4.5, and 5.5, using a simulated acidic rain solution. Leaf discs from these and non-treated plants were examined by scanning electron microscopy (SEM). Damage was noted at all pH levels. Discula destructiva conidia may germinate at trichome bases where damage may cause the leaching of nutrients. Also, the difference in stomatal damage may account, in part, for differences in disease susceptibility. Cardinal growth temperatures and response to thermal stress regimes were determined for isolates of Discula destructiva. This information may lead to an understanding of possible climatic barriers, and the thermal treatment of plant material.en
dc.description.degreeMaster of Scienceen
dc.format.extentviii, 75 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-12232009-020559en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-12232009-020559/en
dc.identifier.urihttp://hdl.handle.net/10919/46407en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1994.C769.pdfen
dc.relation.isformatofOCLC# 30502894en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1994.C769en
dc.subject.lcshAnthracnoseen
dc.subject.lcshFlowering dogwood -- Diseases and pestsen
dc.titleAbiotic stressors in the dogwood anthracnose complexen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplinePlant Pathology, Physiology, and Weed Scienceen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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