SINCLAIR STAMMERS / SCIENCE PHOTO LIBRARY SINCLAIR STAMMERS / SCIENCE PHOTO LIBRARY
Light microscope footage of cold Escherichia coli bacteria having been frozen. E. coli is a Gram-negative bacterium found in the intestines of warm-blooded animals. It is a normal member of the gut flora, but some strains of E. coli can cause food poisoning. Freezing or refrigerating food slows the growth of bacteria but does not kill all of the cells, allowing them to revive and reproduce when warmed again. The bacterial cells are around 2x0.5 micrometres in size. This is the K12 strain. Filmed with phase contrast illumination.
Model release not required. Property release not required.