Pea flower pollination, SEM C016 / 0065
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Pea flower pollination, SEM C016 / 0065
Pea flower pollination. Coloured scanning electron micrograph (SEM) of pollen grains (ovals) on the stigma of a garden pea flower (Pisum sativum). The pollen grains, which contain male genetic material, have become trapped by the stigmas papillae (hair-like structures, green). The stigma is part of the female reproductive structure (pistil), which is formed from one or more carpels. Each carpel consists of a stigma, a style and an ovary (not seen). If the female sex cells (ovules) in the ovary become fertilised by the pollen grains male sex cells, the carpel may ripen to produce a fruit containing seeds
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 9238589
© SUSUMU NISHINAGA/SCIENCE PHOTO LIBRARY
Carpel Gamete Grains Papilla Papillae Pistil Pisum Sativum Plants Pollen Grain Pollination Reproduction Reproductive Stigma Garden Pea
EDITORS COMMENTS
This print captures the intricate process of pea flower pollination. In this coloured scanning electron micrograph (SEM), we can observe the delicate pollen grains, represented as oval shapes, resting on the stigma of a garden pea flower (Pisum sativum). The green hair-like structures known as papillae have successfully trapped these male genetic materials. The stigma, an essential part of the female reproductive structure called the pistil, is composed of one or more carpels. Each carpel consists of a stigma, style, and ovary (not visible in this image). The primary function of the stigma is to receive pollen grains for fertilization. If these pollen grains successfully fertilize the female sex cells or ovules within the ovary, then it may lead to fruit production containing seeds. This remarkable phenomenon showcases nature's ability to ensure plant reproduction and seed dispersal. The black background emphasizes the vibrant colours present in this microscopic world while highlighting every detail with precision. Through this image, we gain insight into botany and biology by exploring concepts such as plant structure, floral anatomy, reproductive mechanisms, and gamete interaction. Photographer Susumu Nishinaga has skillfully captured this moment using a scanning electron microscope (SEM), allowing us to appreciate both its scientific significance and aesthetic beauty.
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