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Alder tree pollen grain, SEM
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Alder tree pollen grain, SEM
Alder tree pollen grain. Coloured scanning electron micrograph (SEM) of a pollen grain from an alder tree (Alnus glutinosa). A pollen grain contains a male sex cell from a flowering plant. Millions of pollen grains are produced by each flowering plant. In the process of pollination, some of these pollen grains are transported to the female reproductive parts of a plant. This allows the female and male sex cells to combine during the formation of a seed. Alder trees are fast-growing deciduous trees found mostly in the temperate areas of the northern hemisphere. Magnification: x4000 when printed at 10 centimetres wide
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Media ID 9195815
© POWER AND SYRED/SCIENCE PHOTO LIBRARY
Alnus Glutinosa Colored Gamete Pollen Pollen Grain Pollination Reproduction Reproductive Black Alder Common Alder European Alder
EDITORS COMMENTS
This print showcases the intricate beauty of an alder tree pollen grain. Under the lens of a scanning electron microscope, this colored SEM image reveals the remarkable details of a male sex cell from the flowering plant Alnus glutinosa. Each flowering plant produces millions of these tiny pollen grains, which play a crucial role in pollination. During pollination, some of these grains are transported to the female reproductive parts of a plant, allowing for the fusion of male and female sex cells during seed formation. This process is essential for reproduction in plants and ensures their continued growth and survival. Alder trees, known for their fast growth and deciduous nature, thrive primarily in temperate regions across the northern hemisphere. The magnification used to capture this image allows us to appreciate its intricacy at 4000 times its actual size when printed at 10 centimeters wide. The scientific significance behind this photograph lies in its ability to shed light on botanical processes such as reproduction and pollination. It serves as a visual reminder that even within seemingly small components like pollen grains, there exists immense complexity and beauty worth exploring further.
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