alkaloid dans le dictionnaire PONS

Exemples monolingues (non-vérifiés par l'équipe de rédaction)

anglais
In the formation of simple -carboline alkaloids, such as harmine and harmaline, pyruvic acid acts as the keto acid.
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They will eat sweet lupines, but will reject bitter lupines and other plants with high quinolizidine alkaloids.
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It was initially assumed that the alkaloids are the final products of nitrogen metabolism in plants, as urea in mammals.
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Thanks to his scientific education he was successful in isolating and characterizing alkaloids in the pharmacy laboratory.
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Some monoterpenoid indole alkaloids also interact with adrenoceptors.
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Alkaloids are produced by a large variety of organisms including bacteria, fungi, plants, and animals.
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Since ancient times, plants containing indole alkaloids have been used as psychedelic drugs.
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Horses which are pregnant may be strongly affected by alkaloids produced by the tall fescue symbiont.
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These compounds can be formed by "de novo" synthesis or by modifying a pre-existing pyrrolizidine alkaloid that is consumed from the plant.
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Along with being a source of nutrition for monarchs, the plants also contain alkaloids that the monarchs retain, making them unpalatable and poisonous to predators.
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