Credit: THIERRY BERROD/SCIENCE PHOTO LIBRARY

Caption: Coloured scanning electron microscopy (SEM) of a stoma opening and closing. A stoma is a tiny pore which regulates gaseous and water exchange in plants. The stoma is controlled by its two flanking guard cells. The stoma opens in the day to allow carbon dioxide to enter the leaf. However this can lead to excessive water loss through evaporation. When water levels are low, the guard cells close the stoma to prevent more being lost.

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Keywords: anatomical, anatomy, biology, botany, carbon dioxide, cells, close up, co2, electron microscopy, evaporation, flora, gas, gaseous exchange, guard cell, hole, leaf, leaves, less than 10 seconds, microbiology, microscopic, nature, nobody, opening, photosynthesis, plant, plantae, pore, respiration, scanning electron microscopy, science, sem, stoma, stomata, structure, surface, transpiration, transpiring, water

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Plant stoma, SEM

K005/4310 Rights Managed

Downloadable master

Duration: 00:00:04.06

Frame size: 1920x1080

Frame rate: 25

Audio: No

Format: QuickTime, Photo JPEG 100%, progressive scan, square pixels

File size: 110.2M

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Capture format: Unknown

Codec: Apple ProRes 422

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