Stomatal complex, TEM
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Stomatal complex, TEM
Stomal complex. Coloured transmission electron micrograph (TEM) of a stomatal (pore) complex in the young leaf of the pea plant (Pisum sativum). Two developing guard cells (blue) are separated by a cell wall (orange) that will split to form the stomatal opening. Both cells are dominated by a large nucleus (yellow) containing clumps of chromatin (red). The stomata regulate the exchange of water and gases between the atmosphere and the leaf interior. Stomata open when the guard cells are full of water and close when they are not. Closure is a natural response to darkness and drought. Magnification: x5200 at 10 centimetres high
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 6288987
© DR JEREMY BURGESS/SCIENCE PHOTO LIBRARY
Cell Wall Chromatin False Colour Guard Cell Micrograph Nuclei Nucleus Photosynthesis Pisum Sativum Pore Respiration Stoma Transmission Electron Microgra Transmission Electron Microscope Transpiration Walls Cells False Coloured
EDITORS COMMENTS
This print showcases the intricate stomatal complex found in the young leaf of a pea plant. Through the lens of a transmission electron microscope (TEM), we are granted a colorful glimpse into this vital botanical structure. The image reveals two developing guard cells, painted in shades of blue, which are separated by an orange cell wall that will eventually split to form the stomatal opening. The dominant feature within both cells is their large yellow nucleus, adorned with clumps of red chromatin. These nuclei play a crucial role in regulating the exchange of water and gases between the atmosphere and the leaf interior through these tiny stomata. When filled with water, these guard cells open up to facilitate respiration and photosynthesis; however, they close during periods of darkness or drought as a natural response. With its magnification set at x5200 and standing at 10 centimeters high, this false-colored micrograph provides us with an extraordinary view into nature's microscopic wonders. It serves as a reminder that even within seemingly ordinary plants like peas (Pisum sativum), there exists an astonishing complexity waiting to be explored. This remarkable image captures not only scientific curiosity but also highlights the beauty hidden within every single leaf on our planet.
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