Salmonella bacteria dividing

Salmonella bacteria dividing

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Caption: Salmonella cell dividing. Coloured transmission electron micrograph (TEM) showing the bacterium Salmonella typhimurium undergoing division by binary fission. Two daughter cells produced by the division are at top and bottom. At centre, the cells are joined by a narrow neck. Through this neck DNA genetic material is passing in a thin strand; bacteria do not have a nucleus, and the DNA can be seen scattered in the central region of each developing cell. Once each cell has its full compliment of DNA, they will separate. Salmonella typhimurium is a common cause of food poisoning (Salmonellosis) in humans, spread in contaminated food. Magnification: x59, x210,000 at 5.5x10 inch size.

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Keywords: bacteria, bacterial, bacteriology, bacterium, binary, binary fission, cell division, dividing, dna, electron micrograph, fission, food poisoning, in bacteria, micro-organisms, microbe, microbes, microbiology, of bacterium, salmonella, salmonella typhimurium, tem, transmission

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