Rust fungus spore, SEM

Rust fungus spore, SEM

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Credit: EYE OF SCIENCE/SCIENCE PHOTO LIBRARY

Caption: Rust fungus spore. Coloured scanning electron micrograph (SEM) of a spore (reproductive cell) of the rust fungus Gymnosporangium sabinae (red), and other mould spores, on a pear tree leaf. Rusts are parasitic fungi that cause some of the most destructive plant diseases. The disease appears as numerous rusty, orange spots that rupture the epidermal layers of the leaves. The fungus rarely causes the tree to die but it greatly reduces its ability to photosynthesize (produce food from sunlight), often leading to severely reduced yields. Magnification: x1300 when printed 10 centimetres wide.

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Keywords: biological, biology, botanical, botany, cells, coloured, condition, disease, diseases, disorder, false-coloured, flora, fungus, gymnosporangium, gymnosporangium sabinae, leaf, leaf damage, mold, mould, mouldy, mycology, nature, parasite, parasitic, pathogens, pathological, pathology, pear tree, plant, plant pathology, reproduction, reproductive cell, rust, rust fungus, scanning electron micrograph, scanning electron microscope, sem, spore, spores

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