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Home > All Images > 1993 > May > 15 May 1993

Images Dated 15th May 1993

Choose from 12 pictures in our Images Dated 15th May 1993 collection for your Wall Art or Photo Gift. All professionally made for Quick Shipping.


Clostridium botulinum bacteria with spores Featured 15 May 1993 Image

Clostridium botulinum bacteria with spores

Coloured transmission electron micrograph (TEM) of the bacteria Clostridium botulinum, cause of botulism food poisoning in humans, in the process of sporulation (spore formation). A spore- releasing sequence is seen. The yellow bacterl cell at centre left is in the early vegetative stage & contains a spore (red). The yellow cell at top is in an advanced vegetative stage with a well-developed spore; below it is a blue cell whose spore (red) is being released. The blue cell at bottom has released its spore, & its cell contents are breaking down. Spores enable C. botulinum to survive unfavourable conditions. Magnification: x12, 500 at 6x4. 5cm size

© A.B. DOWSETT/SCIENCE PHOTO LIBRARY