Common Alder Tree Pollen SEM

Common Alder Tree Pollen SEM

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Credit: POWER AND SYRED/SCIENCE PHOTO LIBRARY

Caption: Alder tree pollen. Coloured scanning electron micrograph (SEM) of a pollen grains 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 from a flower's anthers to the female reproductive parts of a plant. This allows the female and male sex cells to combine in the formation of a seed. Alder trees are fast-growing deciduous trees found mostly in the temperate areas of the Northern Hemisphere. Magnification x6980 (x1725 at 10cm wide).

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Keywords: alder, alder tree, alder tree pollen, alnus, alnus glutinosa, alnus sp., male sex cell, pollen, pollen grain, pollination, reproduction, reproductive, scanning electron micrograph, scanning electron microscope, sem, tree

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