Chemistry Commons^™

Opening Of An Epoxide Ring Using Azide To Form A Triazole, Emily Hufnagel, Jeffrey A. Hansen

Annual Student Research Poster Session

No abstract provided.

Synthesis Of Ether Alcohols With Varying Catalysts, Hannah Grady, Frida Li, Jeffrey A. Hansen

Annual Student Research Poster Session

No abstract provided.

Synthesis And Evaluation Of Novel Silica Hydride-Based Stationary Phases For Bioanalytical Application, Seiichiro Watanabe

Seiichiro Watanabe

The Relationship Between Insect Visitors And Chemical Fragrance Composition Of Cypripedium Parviflorum Var. Pubescens In Central Virginia., Ruth Elkins

Student Scholar Showcase

Due to its rarity, little is known regarding which insects pollinate Cypripedium parviflorum var. pubescens, large yellow lady slipper orchids, and why they do so when offered no reward. Insect identification and fragrance composition data have been collected from two populations of large yellow lady slippers in Central Virginia for more than a decade. This research analyzed data in order to determine potential relationships between visiting insects and fragrance compositions of the orchid. The results of this research can be used to establish and protect populations of Cypripedium parviflorum var. pubescens.

Abiotic Stress And Anthocyanins Biosynthesis In Arabidopsis Thaliana, Carolanne Bekus

Student Scholar Showcase

Crops and farmers today are facing unprecedented challenges due to the changing environment. The plants of the future need to be hardy to survive harsh environmental conditions such as increased temperature, and prolonged droughts. It is imperative to understand the mechanisms plants employ to protect themselves under these types of stresses. Anthocyanins are pigments of the flavonoid subclass produced by plants. They impart red to purple color to flowers, fruits, and seeds. They also have antioxidant properties and they contribute to stress tolerance in plants. They are understood to be produced under abiotic stresses in order to protect the plant. …

Age Status Effects On Female Silk Production And Male Courtship Response In Dolomedes Scriptus, Joseph Osborne

Student Scholar Showcase

Female Dolomedes scriptus, the striped fishing spider, serve as model organisms exhibiting pheromone production as a means of chemical signaling. Previous work has shown that male fishing spiders are responsive to female silk, and preferentially court in the presence of silk from mature virgins. In our research, we hypothesized that mature females produced larger quantities of silk than penultimate females in an attempt to elicit greater male mating response. Female spiders of both age statuses were kept for two days in a gridded tank. Sub-sampling of silk lines that crossed a random portion of the grid produced results signifying …

A Chemical In Filter Paper Interferes With Trail Following Behavior In The Termite Reticulitermes Hesperus (Banks), Kathryn Vest

Student Scholar Showcase

Termites follow chemical trails. In previous experiments we dissolved and diluted chemicals in acetone to test if they elicited trail following. Each trail was a straight line across the arena drawn with 10 µl using a glass capillary (Microcaps). We noticed a minor but stable response to trails laid with pure acetone. The response could be caused by contaminated acetone or by a chemical in the filter paper (Watman #5) that lined our arena (petri dish, 10cm diameter). We could confirm that the termites respond to acetone alone. Soxkhlet extraction for 8 hours removed the signal from the filter paper. …