Light micrograph of a thin section through a runner bean leaf infected with bean rust, Uromyces appendiculatus, showing the brown, round overwintering

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Light micrograph of a thin section through a runner bean leaf infected with bean rust, Uromyces appendiculatus, showing the brown, round overwintering Teliospores both on the upper and lower side of the leaf section. Microscopic contrast method: Differential interference contrast. Magnification: x200 when printed at 10 centimetres wide.

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Size: 5616px × 3744px
Photo credit: © GERD GUENTHER/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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