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Plant root with ectomycorrhiza, SEM
Coloured scanning electron micrograph (SEM) of a freeze-fracture preparation of a plant root with ectomycorrhiza A mycorrhiza is a symbiotic association between a soil fungus (brown) and the roots of a plant. Both organisms benefit from this association. Ectomycorrhiza grow between the cells of the root cortex, but do not penetrate its tissues. Within the plant cells are phenol droplets (yellow). Magnification: x300 when printed at 15cm wide., by EYE OF SCIENCE/SCIENCE PHOTO LIBRARY
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