The effect of tryptophan on plants and animals

The effect of tryptophan on plants:
Tryptophan is an important precursor of auxin biosynthesis in plants. Its structure is similar to that of IAA and is ubiquitous in higher plants. There are two ways to synthesize auxin via tryptophan:
(1) Tryptophan is first oxidatively deaminated to form hydrazine acetone, and then decarboxylated to form hydrazine acetaldehyde; hydrazine acetaldehyde is finally oxidized to indole acetic acid under the catalysis of the corresponding enzyme.
(2) Tryptophan is first decarboxylated to form tryptamine, which is then oxidatively deaminated by tryptamine to form indole acetic acid.
The effect of tryptophan on animals:
Tryptophan can participate in the regeneration of plasma proteins in animals, and can promote the action of riboflavin, and also contribute to the synthesis of niacin and heme, which can significantly increase the antibody in pregnant animals, and to lactating cows and sows during lactation. It promotes lactation. When livestock and poultry lack tryptophan, growth stagnates, body weight decreases, fat accumulation decreases, and testicular atrophy of male animals. It is used as a preventive agent for ecdysis in medicine.