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Wheat Rust Pustule

Wheat Rust Pustule

The photomicrograph below is a fluorescence image of a stained thin section of wheat showing a brick-red pustule captured erupting from the leaf surface. Wheat rust is a common and serious disease, reducing crop yields both in the United States and in other wheat-growing areas of the world. The disease is caused by a parasitic fungus and can affect both the leaf and stem of wheat plants.

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