Skip Navigation

Biology

Horse Cortisol Secretion and Stress

Studies have suggested that therapeutic horses are uniquely susceptible to chronic stress because of the nature of their work. Our research looks for changes in salivary cortisol levels as an indicator of chronic stress in therapeutic horses. Our findings will help guide improvements in equine stress management techniques.

In Vitro Effects of Pyrene on Xenopus Laevis

This summer I developed a reliable protocol for the in vitro culturing of melanophores from the neural crest explants of Xenopus laevis to explore the effects of pyrene, and other PAHs, on pigmentation in isolation from endocrine and nervous system regulation. I will present the results of my work.

Bacterium Ochrobactrum in African clawed frog

This research describes the discovery of an antibiotic resistant bacterium, Ochrobactrum anthropi, that is a resident of the skin of lab-maintained African clawed frog (Xenopus laevis), and is potentially pathogenic to other amphibians and immunocompromised humans.

African-clawed Frog and Aeromonas Bacteria

Our work characterized an unknown microbe that has been known to live on the arms and leg of African-clawed frogs (Xenopus Laevis) recovering from an infection called red leg and tested the microbe’s resistance to a variety of antibiotics. The results showed that the microbe was discovered to be an Aeromonas hydrophila that was resistant to antibiotics.

Bacteria in Brook Trout

We have evidence that the bacteria in the Brook Trout gut microbiome have the genetic potential to modulate mercury toxicity through the transformation of mercury in the Hg(II) form to the relatively non-toxic Hg(0) form, a reaction that reduces the potential bioaccumulation of methyl mercury in fish tissue.

Test of Restoring Eelgrass Populations

Zostera marina, or eelgrass, is an important coastal marine plant that is declining, and thus the focus of ecological restoration. We conducted a large-scale eelgrass transplant experiment on Cape Cod to test different source populations to see which survives and grows best, and to help guide future eelgrass restoration.

Light-Induced Reactive Species in Planarians

Little is known about the biological effects of visible wavelengths on organisms, but by studying visible light exposure on planarians, we are able to hypothesize an underlying mechanism for visible-light induced cellular apoptosis. This could provide new insight on pigment cell diseases such as melanoma.

Molecular Tools and Eelgrass Restoration

Eelgrass restoration is an important local environmental issue in New England, and often meets with limited success. We conducted a genetic analysis of four different source populations used in an experimental eelgrass restoration in Cape Cod, to evaluate whether genetic diversity influences transplant success.