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Pilus — Free Biology Illustration | GPAI | GPAI

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Pilus

Pilus

Biology

Pilus

A relatively long, thin, hair-like bacterial appendage extending from the surface of a prokaryotic cell as a simple narrow tubular filament. It is smooth-surfaced, much narrower than a flagellum, and typically straighter and less numerous than fimbriae, though it may be straight or slightly curved/flexible. The filament has a uniform width along most of its length and may appear pale tan, beige, light gray, or pale yellow, sometimes with a subtly hollow tubular appearance.

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