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Image Number D036-1

Cells of Salmonella enteritidis change shape as they grow. This scanning electron micrograph shows a mixture of small cells with filaments and very large cells that lack filaments. Small cells arise only during certain growth stages and efficiently contaminate eggs when the time is right.

Photo by P.J. Guard-Petter, digital colorization by Stephen Ausmus.

640 pixels wide: (D036-1.jpg)

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