Grape hyacinth stomata. Polarised light micrograph of tissue from a grape hyacinth (Muscari sp.) plant,showing the stomata (round). 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: x400 when printed 10 centimetres wide | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Mis, Marek |
Bildgröße: | 3872 px × 2592 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |