DENNIS KUNKEL MICROSCOPY / SCIENCE PHOTO LIBRARY DENNIS KUNKEL MICROSCOPY / SCIENCE PHOTO LIBRARY
Coloured scanning electron micrograph (SEM) of Clostridium sporogenes, Gram-positive, anaerobic, endospore-forming, rod prokaryote. Seen here are the rod-shaped vegetative cells and endospore-forming cells (bulbous shaped rods). Clostridium sporogenes is the organism most frequently used for conducting inoculated pack studies in low acid foods. Magnification: x2,400 when shortest axis printed at 25 millimetres.
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