Proteus bacteria

Proteus bacteria

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Credit: DR LINDA STANNARD, UCT/SCIENCE PHOTO LIBRARY

Caption: Proteus bacteria. Coloured transmission electron micrograph (TEM) of a section through Proteus sp. bacteria on a fractal background. These Gram- negative bacteria have two forms. A short bacillus (rod-shaped) bacterium (pink/orange) is dividing by binary fission to form two identical daughter cells. It uses its stubble-like fimbriae to attach to other cells and to substrates. The other larger form (red) has whip-like flagella with which it moves to new areas by a process called swarming. Proteus bacteria are normally found in soil, but also occur in the human intestine. They can cause urinary tract infections. Magnification unknown.

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