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Sunflower pollen grain, SEM C018 / 0310
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Sunflower pollen grain, SEM C018 / 0310
Sunflower pollen grain. Coloured scanning electron micrograph (SEM) of a pollen grain from the sunflower (Helianthus annuus). The grains have a spiked outer wall (exine), which assists in their dispersal to the female parts of other sunflowers by improving their adherence to pollinating insects. The characteristic surface of pollen grains is used by botanists to recognise and classify plants. Pollen grains are the male sex cells of a flowering plant
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Media ID 9238083
© CLOUDS HILL IMAGING LTD/SCIENCE PHOTO LIBRARY
Asteraceae Colored Compositae Dispersal Exine Gamete Gametes Grain Grains Green Background Helianthus Annuus Outer Wall Pollen Pollen Grain Reproduction Reproductive Sex Cell Spiked Spikes Spiky Sunflower Cells Cutouts
EDITORS COMMENTS
This print showcases the intricate beauty of a sunflower pollen grain. Under the scanning electron microscope, the vibrant colors and spiky outer wall (exine) of this male sex cell are brought to life. The spikes on its surface serve a crucial purpose in ensuring successful reproduction for sunflowers. The exine's unique structure aids in dispersing these grains to other sunflowers by enhancing their adherence to pollinating insects. This mechanism allows for cross-pollination, promoting genetic diversity within the species. Botanists rely on such characteristic features to identify and classify different plant species. Pollen grains play a vital role in the reproductive cycle of flowering plants, acting as gametes or sex cells. In this image, we witness nature's microscopic marvels at work - an essential step towards fertilization and seed formation. Set against a green background, this visually stunning photograph captures both scientific precision and artistic allure. It serves as a reminder of the remarkable complexity hidden within even the tiniest elements of our natural world. This print is brought to you by CLOUDS HILL IMAGING LTD/SCIENCE PHOTO LIBRARY – an invaluable resource for scientists, educators, and enthusiasts alike who seek to explore and understand our fascinating botanical realm through cutting-edge imaging technology.
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