Powdery mildew on deadnettle

Powdery mildew on deadnettle

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Credit: 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. magnification: x580 at 8x10 inch size.

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Keywords: agricultural pest, agriculture, cleistocarp, deadnettle, erysiphe, erysiphe galeopsidis, eumycota, fungal, fungi, fungus, microbiology, mildew, mycology, nature, pest, plant parasite, powdery mildew, scanning electron micrograph, sem, type

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