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United States Department of Agriculture

Agricultural Research Service

ARS Photo Library

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Image Number D1244-1

Chemist Charles Lee inspects a petri dish containing xylan, a component of the hemicellulose in plant cell walls. Bacteria that produce xylanase were streaked onto the dish in a wavy pattern, and the clear areas are where the xylanase is degrading the xylan.

 

Photo by Peggy Greb.


640 pixels wide: (d1244-1.jpg)




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Last Modified: 9/30/2008
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