Plant stoma, light micrograph
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Plant stoma, light micrograph
Plant stoma. Light micrograph of a stomatal pore (centre) on the surface of a stinging nettle (Urtica dioica) leaf. The stomata are gaps (white) within two guard cells (kidney-shaped). Stomata are pores that regulate the exchange of gases and water vapour into and out of the plant. The guard cells regulate this by expanding and deflating in response to osmotic pressure. When they expand, this causes them to move apart from one another and open the pore. This image was created using an epithelial peel to chemically remove the top layer of the leaf. Magnification: x230 when printed 10 centimetres tall
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 6299933
© DR KEITH WHEELER/SCIENCE PHOTO LIBRARY
Chloroplasts Dicot Dicotyledon Gas Exchange Guard Cell Opening Openings Plant Anatomy Pores Stinging Nettle Stoma Stomata Surface Transpiration Under Side Underneath Urtica Dioica Cells Light Micrograph Light Microscope
EDITORS COMMENTS
This print showcases the intricate beauty of a plant stoma, specifically a stomatal pore found on the surface of a stinging nettle leaf. The stomata, represented by striking white gaps, are nestled within two kidney-shaped guard cells. These pores play a crucial role in regulating the exchange of gases and water vapor into and out of the plant. The remarkable mechanism behind this regulation is brought to life through this image. The guard cells respond to osmotic pressure by expanding and deflating, causing them to move apart from each other and ultimately opening the pore. This delicate dance ensures that gas exchange and transpiration occur efficiently. To capture this stunning micrograph, an epithelial peel was employed to chemically remove the top layer of the leaf, revealing its hidden secrets under a light microscope. With a magnification factor of x230 when printed at 10 centimeters tall, every minute detail becomes apparent. Delving into nature's wonders never ceases to amaze us as we explore botany's realm. This photograph not only highlights the fascinating anatomy of plants but also serves as a reminder that even seemingly inconspicuous elements like stomata hold immense importance in sustaining life on our planet.
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