Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Biology (1)
- Environmental Health (1)
- Environmental Health and Protection (1)
- Environmental Microbiology and Microbial Ecology (1)
- Environmental Monitoring (1)
-
- Environmental Sciences (1)
- Forest Biology (1)
- Forest Sciences (1)
- Fungi (1)
- Immunity (1)
- Immunology and Infectious Disease (1)
- Immunology of Infectious Disease (1)
- Medicine and Health Sciences (1)
- Microbiology (1)
- Organisms (1)
- Pathogenic Microbiology (1)
- Pharmacology, Toxicology and Environmental Health (1)
- Physical Sciences and Mathematics (1)
- Plant Biology (1)
- Plant Pathology (1)
- Plants (1)
- Population Biology (1)
Articles 1 - 2 of 2
Full-Text Articles in Botany
Range-Wide Prevalence And Impacts Of Pseudocercosporella Inconspicua On Lilium Grayi And An Assessment Of L. Superbum And L. Michauxii As Reservoirs, Cindy L. Barrett
Range-Wide Prevalence And Impacts Of Pseudocercosporella Inconspicua On Lilium Grayi And An Assessment Of L. Superbum And L. Michauxii As Reservoirs, Cindy L. Barrett
Electronic Theses and Dissertations
Lilium grayi (Gray’s Lily), a southern Appalachian endemic species, is threatened by a Lilium-specific fungal pathogen, Pseudocercosporella inconspicua. The disease is characterized by tan lesions that can cause early senescence, while also lowering seed production and viability. This project tested for P. inconspicua conidia and accessed health at nine locations. The disease was present and ubiquitous across the range of L. grayi. Through identification of P. inconspicua conidia in the field, L. superbum (Turk’s Cap Lily) was identified as an additional host, while L. michauxii (Michaux’s Lily) was disease-free. However, infection was inducible in both species. With …
Phenotypic Plasticity Of Native And Invasive Cool-Season Grasses In Response To Frequency Of Moisture Availability, Ming-Yu Stephens
Phenotypic Plasticity Of Native And Invasive Cool-Season Grasses In Response To Frequency Of Moisture Availability, Ming-Yu Stephens
Electronic Theses and Dissertations
Phenotypic plasticity, the ability of an individual to alter its growth in response to environmental conditions, is an attribute that is considered a likely invader attribute, as it provides the opportunity to expand its ecological niche breadth. Adaptive phenotypic plasticity can affect not only the ability to establish in a new environment, but also the ability to outperform the existing vegetation over time. Bromus inermis (smooth brome) and Poa pratensis (Kentucky bluegrass) are invasive species in tall- and mixed-grass prairie ecosystems. The objectives of this two-part study were to quantify the adaptive plasticity of biomass accumulation and tiller production in …