Spirit blue agar contains an emulsion of olive oil and spirit blue dye. Bacteria that produce lipase will hydrolyze the olive oil and produce a halo around the bacterial growth. The Gram-positive rod, ...

Most species of bacteria in Lake Mendota rapidly evolved with the change of seasons, returning to a similar state every year, ...

To illustrate this, imagine that only 1,000 bacteria live in your gut. In healthy individuals, this might include 10 bacteria of species ‘red’, and 20 bacteria of species ‘blue’, so we could say red ...