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Bracken spores, SEM
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Bracken spores, SEM
Bracken spores. Coloured scanning electron micrograph (SEM) of the leaves of a bracken plant (Pteridium aquilinum). The undersides of the leaves are covered in spore-containing sacs known as sporangia (brown). The spores are released when the wall of a sporangium dries and splits to throw the spores away from the plant
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Media ID 6292669
© SUSUMU NISHINAGA/SCIENCE PHOTO LIBRARY
Fern Ferns Pteridium Aquilinum Pteridophyte Pteridophytes Re Production Reproductive Sacs Sporangia Sporangium Spore Spore Bearing Spores Under Side Undersides
EDITORS COMMENTS
This print showcases the intricate beauty of bracken spores, captured through a scanning electron microscope (SEM). The image reveals the underside of a bracken plant's leaves, which are adorned with numerous sporangia - sacs that contain the plant's spores. These sporangia, depicted in rich brown hues, play a crucial role in reproduction for this species. The process of spore release is an intriguing phenomenon illustrated by this photograph. As the wall of a sporangium dries and eventually splits open, it propels the tiny spores away from the parent plant. This mechanism ensures dispersal and colonization in new areas for these pteridophytes. The vibrant colors and detailed structure visible in this SEM capture highlight nature's remarkable complexity at microscopic levels. Bracken plants belong to the fern family (Pteridium aquilinum), making them part of an ancient group known as pteridophytes. These plants have been thriving on Earth for millions of years, adapting to various environments across continents. By offering us a glimpse into their reproductive strategy, this image invites us to marvel at both the resilience and elegance found within our natural world. It serves as a testament to how even seemingly small organisms can possess extraordinary mechanisms for survival and propagation.
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