Swede seedling germinating (Brassica napus)

Ref: 80018737

Germinated seed. Image 4 of 4. Coloured scanning electron micrograph (SEM) of the final stage in the germination of a plant seed. The seed coat (testa) has been lost. The embryonic plant that emerged has two main parts. The radicle (white), the embryonic root, is growing downwards in a response to gravity that is called geotropism. The root 'hairs' increase the ability of the root to obtain water and nutrients from its surroundings.
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