Tea leaf, light micrograph
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Tea leaf, light micrograph
Tea leaf. Light micrograph of a cross-section through a tea (Camellia sinensis) leaf. The upper and lower epidermis on the surfaces of the leaf are blue. Under the upper epidermis are palisade cells (brown), which contain chloroplasts, the site of photosynthesis. Beneath this a spongy mesophyll layer with large spaces between the cells. At bottom left, a stoma (pore) is seen. Stomata allow gases and water to enter and leave the plant. Magnification: x230 when printed 10 centimetres wide
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 6300639
© DR KEITH WHEELER/SCIENCE PHOTO LIBRARY
Camellia Sinensis Chloroplasts Cross Section Epidermis Mesophyte Phloem Plant Anatomy Pore Pores Stoma Stomata Transverse Section Vascular Bundle Xylem Cells Light Micrograph Light Microscope Sectioned
EDITORS COMMENTS
This print showcases the intricate beauty of a tea leaf, captured under the lens of a light microscope. The cross-section of the leaf reveals its fascinating anatomy and highlights its vital role in photosynthesis. The upper and lower epidermis, depicted in shades of blue, form protective layers on either side of the leaf. Beneath the upper epidermis lies a layer of palisade cells, distinguished by their rich brown coloration. These cells house chloroplasts, which are responsible for capturing sunlight and converting it into energy through photosynthesis. Just below this layer is the spongy mesophyll, characterized by large spaces between its cells. Intriguingly positioned at the bottom left corner is a stoma or pore. Stomata play a crucial role in regulating gas exchange and water movement within plants. They allow gases such as carbon dioxide to enter for photosynthesis while enabling water vapor to escape during transpiration. The magnified image provides an awe-inspiring glimpse into plant anatomy and emphasizes the complexity hidden within even seemingly simple leaves like those found on Camellia sinensis - commonly known as tea plants. This remarkable photograph serves as a testament to nature's intricacy and offers insight into botanical wonders that often go unnoticed by our naked eyes.
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