Section through stomatal pore of aloe

Section through stomatal pore of aloe

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Credit: J.C. REVY, ISM/SCIENCE PHOTO LIBRARY

Caption: Stomatal pore. Light micrograph of a section through a stomatal pore on the surface of an Aloe vera leaf. The stomata is the gap (at centre) enclosed by guard cells on either side. Cuboid leaf epithelial cells are seen at left and right. Guard cells open and close the stomata depending on light, temperature and the internal water supply of the leaf. Open stomata allow gases to be exchanged by the leaf tissues during photosynthesis. When closed, stomata can prevent water loss during dry periods. Aloe vera is commonly used as a herbal medication and in many spiritual rituals around the world. Magnification: x500 at 35mm size.

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Keywords: aloe, aloe vera, botany, cross section, cross-sect, guard cell, leaf, leaf surface, leaves, light micrograph, nature, plant, plants, stoma, stomata

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