Germinating seed, SEM

Germinating seed, SEM

B787/0395 Rights Managed

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This image is part of the sequence Flowers: SEM of a germinating seed


Caption: Germinating seed. Image 2 of 4. Coloured scanning electron micrograph (SEM) of an early stage in the germination of a plant seed. The radicle (white), the embryonic root, is more fully extended from the seed, and the root 'hairs' are seen. These structures increase the ability of the root to obtain water and nutrients from its surroundings. The seed coat (testa, brown) is beginning to split to reveal the embryonic shoot (plumule) and its seed leaves (cotyledons, green). Eventually the leaves will photosynthesise while the root gathers nutrients from the soil. This is a swede (Brassica napus) seed. For a sequence of seed germination, see images B787/394-397 and B787/398.

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Keywords: biological, biology, botanical, botany, brassica napus, coloured, dicot, early, embryo, embryonic, false-colour, false-coloured, flora, germinating, germination, growing, hair, hairs, nature, one, plant, radicle, reproduction, reproductive, root, scanning electron micrograph, scanning electron microscope, seed, sem, sequence, single, stage, swede, testa

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