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Sunflower pollen, SEM

Sunflower pollen, SEM


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Sunflower pollen, SEM

Sunflower pollen grains. Coloured scanning electron micrograph (SEM) of pollen grains from the sunflower (Helianthus annuus). The grains have a spiked outer wall (exine), which may assist in their dispersal by improving their adherence to pollinating insects. The characteristic surface of pollen grains is used by botanists to recognise and classify plants. Each pollen grain contains a male gamete (reproductive cell) that is intended to fertilise an egg or ovule (female gamete), and initiate the formation of a seed for a new plant. Magnification: x2100 when printed at 10 centimetres tall

Science Photo Library features Science and Medical images including photos and illustrations

Media ID 6288577

© SUSUMU NISHINAGA/SCIENCE PHOTO LIBRARY

Asteraceae Compositae Dispersal Exine False Colour Gamete Gametes Grain Grains Outer Wall Pollen Re Production Reproductive Sculpted Spiked Spikes Spiky Sun Flower False Coloured


EDITORS COMMENTS
This print showcases the intricate beauty of sunflower pollen grains. Under the scanning electron microscope (SEM), these grains reveal a stunning array of colors and textures. The spiked outer wall, known as exine, serves a crucial purpose in their dispersal by enhancing their adherence to pollinating insects. This unique characteristic also aids botanists in identifying and classifying different plant species. Each pollen grain contains a male gamete, which is responsible for fertilizing an egg or ovule – the female gamete – initiating the formation of new plants through seed production. The magnification level used for this print allows us to appreciate the fine details at x2100 when printed at 10 centimeters tall. The false coloring applied to this SEM image adds an artistic touch while highlighting the sculpted and spiky nature of these reproductive structures. Sunflowers belong to the Asteraceae family, commonly known as compositae, making them one of nature's most recognizable symbols. This mesmerizing photograph from Science Photo Library invites us into the fascinating world of botanical biology and reminds us of the incredible complexity hidden within even seemingly simple natural elements like pollen grains.

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