GERD GUENTHER / SCIENCE PHOTO LIBRARY GERD GUENTHER / SCIENCE PHOTO LIBRARY
Light micrograph of a glandular hair on a tomato (Lycopersicon esculentum) leaf. The upper four secretory cells contain different essential oils to defend again various aphids. The typical smell of tomato plants depends on these oils, produced by these secretory hairs. Microscopic contrast method : Incident darkfield. Magnification 120x when printed 10 cm wide.
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