This is a larva of Manduca sexta, the tobacco hornworm. This species feeds on tomato or tobacco plants, reaching a weight of up to 10-12 grams. It is a heavily studied model insect because of its large size and ease of rearing.

The picture is of an Arabidopsis plant, that has been transformed with a hADAR-1 M296 gene, T1 generation. This plant shows no effect due to the presence of this human gene.

Computer model of the viral capsid of HSV-1.

A group of pioneer axons navigating through the embryonic mouse forebrain. These axons are labeled with the fluorescent axon tracer diI (red).  Dr. Grant Mastick's research group investigates the molecular mechanisms of axon guidance using mutant mice and a variety of molecular approaches.

Electron micrograph of the pathogenic yeast Cryptococcus neoformans.  Note the large polysaccharide capsule that surrounds the yeast.  The capsule is an essential virulence factor for this opportunistic yeast that produces a life-threatening meningitis in patients who have deficiencies in cellular immunity, i.e., patients with AIDS.

The image shows immunofluorescent localization of the ryanodine recepter endoplasmic reticulum calcium release channel in cerebellar Purkinje neurons.  This was the first picture of the distribution of this protein in neurons.

Human fibroblasts infected with a recombinant HCMV expressing green fluorescent protein (GFP).  GFP is used to generate deletion mutants of HCMV where essential replication genes have been removed from the virus.

Electron micrograph of HSV1.