Beech stoma, SEM

Numéro d’image : 12527125
Beech stoma, SEM
Beech stoma. Coloured scanning electron micrograph (SEM). of a stoma on the underside of a beech (Fagus sylvatica) leaf. Stomata are pores that open and close in order to regulate gas exchange in a plant. The aperture of each stoma is controlled by a pair of specialised cells known as guard cells (sausage-shaped). These cells swell to close the pore and shrink to open it. Stomata are found mainly on the underside of leaves. Magnification: x2667 when printed 10cm wide.
Licence : Droits gérés
Crédit: Science Photo Library / EYE OF SCIENCE
Taille de l’image : 4499 px × 3884 px
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Property Release : Non requis
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