Pear scab infection. Light micrograph of a section through a pear (Pyrus sp.) infected with the Venturia pirinum fungus. This fungus causes scab, or b

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Pear scab infection. Light micrograph of a section through a pear (Pyrus sp.) infected with the Venturia pirinum fungus. This fungus causes scab, or black spot, of the pear fruit. The spores germinate and the hyphae penetrate the epidermis to form a mycelium (purple mesh), which enters the cells to reach the nutrients. Magnification: x70 when printed 10 centimetres wide.

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Size: 3841px × 4550px
Photo credit: © DR KEITH WHEELER/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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