THIERRY BERROD, MONA LISA PRODUCTION / SCIENCE PHOTO LIBRARY THIERRY BERROD, MONA LISA PRODUCTION / SCIENCE PHOTO LIBRARY
Tomato leaf. Coloured environmental scanning electron micrograph (ESEM) of the surface of a tomato (Solanum lycopersicum) leaf. The orange structure is a glandular trichome that secretes distasteful chemicals to deter pests from feeding on the leaves. Also seen are stomata (green ovals), pores that are the sight of gaseous exchange in the plant.
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