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Foxglove seed
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Foxglove seed
Foxglove seed coat. Coloured scanning electron micrograph (SEM) of the testa or seed coat of a foxglove seed, Digitalis purpurea. The testa has an irregular honeycomb-like structure. The purpose of this is to trap small particles of soil so that when the seed falls to the ground it is anchored and can germinate in security without being blown away. The testa is mechanically protective and limits entry of solutes into the seed. Foxglove plants are found growing wild in Europe and the USA in woodland and on dry heaths. They are source of the drug digitalin, a heart drug. Magnification: x400 at 6x7cm size
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Media ID 9194601
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Digitalis Purpurea Foxglove Part Parts Plants Reproduction Reproductive Seed Seed Coat Testa
EDITORS COMMENTS
This print showcases the intricate beauty of a foxglove seed coat. Under the lens of a scanning electron microscope, the testa or seed coat reveals an irregular honeycomb-like structure that serves multiple purposes in the life cycle of this remarkable plant species. The primary function of this unique pattern is to act as a trap for small particles of soil. When the mature seed eventually falls to the ground, it becomes securely anchored, preventing it from being easily blown away by wind or other environmental factors. This ensures that germination can occur with utmost security and stability. Beyond its anchoring role, the testa also plays a crucial mechanical protective role by limiting entry of solutes into the seed. This safeguarding mechanism helps maintain optimal conditions for successful germination and subsequent growth. Foxglove plants are native to Europe and parts of North America, where they thrive in woodland areas and dry heaths. Apart from their aesthetic appeal, these plants hold significant medicinal value as they serve as a source for digitalin - a heart drug used in medical treatments. Through this mesmerizing image captured at 400 times magnification on a 6x7cm scale, we gain deeper insights into nature's ingenious reproductive strategies while marveling at the intricate structures that make up our botanical world.
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