Powdery mildew on a plant, SEM

Numéro d’image : 12525704
Powdery mildew on a plant, SEM
Powdery mildew on a plant, coloured scanning electron micrograph (SEM). This is a fungus in the family Erysiphaceae, members of which are parasites of plants. When a spore lands on a plant it germinates and covers the surface in a network of thin thread-like hyphae (grey), called the mycelium. The mycelium absorbs nutrients from the plant's epithelial (surface) tissues, and produces erect conidiophores (the club-like structures here), which bear the fungal spores. The conidiophores cover the surface of the plant host, giving it the soft, powdery appearance responsible for the parasite's name. Magnification: x580 when printed 10cm wide.
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Crédit: Science Photo Library / EYE OF SCIENCE
Taille de l’image : 4000 px × 3438 px
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