DENNIS KUNKEL MICROSCOPY / SCIENCE PHOTO LIBRARY DENNIS KUNKEL MICROSCOPY / SCIENCE PHOTO LIBRARY
Coloured scanning electron micrograph (SEM) of Alicyclobacillus sp., an acidophilic, thermophilic, spore forming bacterium. Causes food spoilage, especially in fruit juices. The spores can survive pasteurization treatments and heat can activate the spores to begin growth and cause contamination. Magnification: x2,400 when shortest axis printed at 25 millimetres.
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