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United States Department of Agriculture

Agricultural Research Service

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Image Number D778-1

Under the sterile conditions of a transfer hood, plant pathologist Medani Omer transfers a fungal pathogen for use in a soilborne pathogen study. These fungal pathogens provide biotic stress on plants, allowing Medani to evaluate the role plant nutrition plays in plant disease development.


Photo by Stephen Ausmus.

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Last Modified: 8/13/2016
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