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Powdery mildew on deadnettle

Powdery mildew on deadnettle

B250/0763

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Credit

MICROFIELD SCIENTIFIC LTD / SCIENCE PHOTO LIBRARY MICROFIELD SCIENTIFIC LTD / SCIENCE PHOTO LIBRARY

Caption

Powdery mildew. Coloured scanning electron micrograph of hyphae (green) and round cleistocarp "fruiting bodies" (orange) of the powdery mildew Erysiphe galeopsidis. It is growing here on a red deadnettle plant. Hyphae are the tangled filaments which make up a fungal colony. The cleistocarps each contain several asci which are spore-bearing bodies. These asci produce asco-spores that are discharged into the air when the cleistocarp is ripe. Transported by wind, they settle and produce new fungal colonies. Powdery mildew is an agricultural pest; it parasitizes leaves of wheat and corn. Magnification: x170 at 5x7cm size.

Release details

Model release not required. Property release not required.

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