Sunflower pollination, SEM

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Sunflower pollination, SEM

Sunflower pollination. Coloured scanning electron micrograph (SEM) of pollen on a stigma of a sunflower plant (Helianthus sp.). The stigma, part of the flowers female reproductive structure, is curled over here, with pollen grains (spiky orange balls) adhering to the yellow trichomes (hairs) on its underside. The pollen grains carry the male reproductive cells, designed to travel down the style to the ovary (neither seen) and so fertilise the plant. As a member of the Compositae family, the sunflowers flower head is made up of many small florets (true flowers). Magnification: x170 at 6x7cm size

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

Media ID 6289385

© SUSUMU NISHINAGA/SCIENCE PHOTO LIBRARY

Grain Grains Pollen Pollination Re Production Reproductive Stigma Sun Flower

EDITORS COMMENTS
This print captures the intricate process of sunflower pollination in stunning detail. In this coloured scanning electron micrograph (SEM), we are granted a microscopic view of a sunflower plant's reproductive structure. The curled stigma, an essential part of the flower's female reproductive system, is prominently displayed here. Adhering to the underside of its yellow trichomes (hairs) are spiky orange balls - pollen grains that carry the male reproductive cells. The beauty lies in the purposeful design: these pollen grains are destined to travel down the style and fertilize the ovary, ultimately ensuring successful reproduction for the plant. As a member of the Compositae family, sunflowers boast flower heads composed of numerous small florets or true flowers. At a magnification level of x170 on a 6x7cm size print, every intricate detail becomes apparent - from the structure and nature of these plants to their botany and reproductive mechanisms. This image serves as a reminder that even at such minuscule scales, life thrives with complexity and precision. Science Photo Library has once again captured nature's wonders through their lens, showcasing both scientific knowledge and artistic appreciation for our natural world.

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