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SEM of Pisum sativum
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SEM of Pisum sativum
Scanning electron micrograph (coloured green) of the upper leaf epidermis of Pisum sativum, the garden pea. The surface is covered with a fuzzy waxy substance which acts as a water repellent. The tiny gaping mouths are stomatal pores, which open & close to regulate the passage of gas between the leaf and the atmosphere. The jigsaw puzzle effect of interlocking pieces corresponds to the arrangement of the epidermal cells; each piece representing a single large cell. Mag: X 100 (35mm). Original is BW print B745/45M
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Media ID 6290051
© DR JEREMY BURGESS/SCIENCE PHOTO LIBRARY
EDITORS COMMENTS
This print showcases the intricate beauty of Pisum sativum, commonly known as the garden pea. In this scanning electron micrograph, the upper leaf epidermis is vividly colored green, drawing attention to its unique features. The surface of the leaf is adorned with a fuzzy waxy substance that serves as a water repellent, protecting it from moisture damage. What truly mesmerizes viewers are the tiny stomatal pores scattered across the leaf's surface. These minute openings play a crucial role in regulating gas exchange between the leaf and its surroundings. They have an astonishing ability to open and close, ensuring an optimal balance of gases such as oxygen and carbon dioxide. The arrangement of interlocking pieces resembles a jigsaw puzzle, representing individual large cells that make up the epidermis. Each cell contributes to creating this visually stunning pattern. With a magnification of X 100 (35mm), this black-and-white print captures every intricate detail with precision and clarity. It invites us into nature's secret world, revealing hidden wonders within plants like Pisum sativum. This remarkable photograph not only celebrates botanical marvels but also highlights our ever-growing understanding of plant biology through scientific exploration.
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