Quorum sensing in Vibrio fischeri
Lux genes coding for light production are activated by quorum sensing at high cell density. The light produced by the bacteria exposed the film for the image.

Courtesy: Greenberg Lab
Pseudomonas aeruginosa in co-culture
Structural component of bacterial targeting type VI secretion system P. aeruginosa (green) assembled in presence of competitor organism (red).

Courtesy of: Mougous Lab
Inflammatory Death of Mouse Macrophages
Mouse macrophages undergoing pyroptosis.

Courtesy of: Cookson Lab
Emergence of Highly Pathogenic Clones of Escherichia coli
Genetic typing of uropathogeic E. coli reveals strong association of some clones with high sensitivity or extreme resistance to multiple antibiotics.

Courtesy: Sokurenko Lab
Pseudomonas aeruginosa
Colonies of Pseudomonas aeruginosa expressing different amounts of exopolysaccharides.

Courtesy of: Harwood Lab
Bacteriophage in biofilm
Filamentous bacteriophage organizing the biofilm matrix into a liquid crystal
Courtesy: Singh Lab
HIV-1 Envelope Evolution
Reconstructed phylogenetic network of HIV-1 envelope sequences (C2-V5) from subtype B.

Courtesy of: Mullins Lab
YopM Crystal Structure
Crystal structure of the Yersinia virulence protein YopM

Courtesy of: Cookson Lab

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Dr. Harwood Publishes Research on Bacteria That Use Sunlight to Convert CO2 to Methane

Professor Carrie Harwood and colleagues have engineered a bacterium that can take carbon dioxide from the air and turn it into fuel in a single enzymatic step. The process draws on sunlight to produce methane and hydrogen inside the bacterium Rhodopseudomonas palustris, in essence reversing combustion. These engineered bacteria could guide scientists toward better carbon-neutral biofuels. Read more about the research here.