DR KARI LOUNATMAA / SCIENCE PHOTO LIBRARY DR KARI LOUNATMAA / SCIENCE PHOTO LIBRARY
Megasphaera elsdenii. Colourted transmission electron micrograph of a chain of cocci (spherical cells) of Megasphaera elsdenii, an anaerobic, non- motile, Gram-negative bacteria. This species lives in the rumen of cattle and sheep fed large quantities of starch, and also in the caecum of pigs. Magnification x31,200 at 6x4.5cm size.
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