spirillum

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Scanning electron micrograph of Treponema pallidum, the spirochete bacterium that is the causative agent of syphilis.

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spirillum

bacterial shape

Also known as: spirilla, spirochete, vibrio

Learn about this topic in these articles:

bacteria

In bacteria: Diversity of structure of bacteria
or curved (vibrio, spirillum, or spirochete). Considerable variation is seen in the actual shapes of bacteria, and cells can be stretched or compressed in one dimension. Bacteria that do not separate from one another after cell division form characteristic clusters that are helpful in their identification. For example,…
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