Stoma of a leaf (Dahlia sp.), SEM

Stoma of a leaf (Dahlia sp.), SEM

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Credit: DENNIS KUNKEL MICROSCOPY/SCIENCE PHOTO LIBRARY

Caption: Stoma on the lower surface of a dahlia leaf (Dahlia sp), coloured scanning electron micrograph (SEM). Stomata (plural of stoma) are tiny openings in the epidermis of a plant that are surrounded by pairs of crescent-shaped cells, called guard cells, that facilitate gas exchange. Magnification: x405 when shortest axis printed at 25 millimetres.

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Keywords: 92719b, asteraceae, asterales, asterid, asterids, colored, coloured, dahlia, false-colored, false-coloured, gas exchange, guard cell, guard cells, herbaceous, herbaceous perennial, herbaceous perennial plant, herbaceous perennial plants, leaf, plant, plant cell, plant cells, plants, scanning electron micrograph, sem, stoma, stomata, stomate, stomates, tuberous, tuberous perennial

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