Cellular and Molecular Biology

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Solanine: A Toxin in Green Solanum Tuberosum


When exposed to sunlight, the tuber of the species Solanum tuberosum turns green just under its skin. This green substance is called solanine and is highly toxic.

Solanine is a

which is

to the taste. While the entire plant produces this compound, light exposure causes very large quantities to be produced by parenchyma cells in the

of the tuber.
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Solanine acts as a

to protect the plant from predators.