July 13, 2026
The effects of amino acids on plants
Amino acids are crucial for plants, providing them with scarce organic nitrogen. For small-molecule free amino acids and oligopeptides, plants can directly absorb them through transport proteins, providing the necessary nitrogen. Besides directly providing nitrogen, amino acids also directly participate in biological activities within plants, promoting growth, and different types of amino acids have different effects on plants.
| Functions | Free amino acid types |
| Promotes chlorophyll production | Alanine, Arginine, Glutamic acid, Glycine, Lysine |
| Promotes the formation of endogenous plant hormones | Arginine, Methionine, Tryptophan |
| Promotes root development | Arginine, Leucine |
| Promotes seed germination and seedling growth | Aspartic acid, Valine |
| Promotes flowering and fruiting | Arginine, Glutamic acid, Lysine, Methionine, Proline |
| Improves fruit flavor | Histidine, Leucine, Isoleucine, Valine |
| Promotes plant pigment synthesis | Phenylalanine, Tyrosine |
| Reduces heavy metal absorption | Aspartic acid, Cysteine |
| Enhances plant drought resistance | Lysine, Proline |
| Improves plant stress resistance | Arginine, Valine, Cysteine |
| Enhances plant cell antioxidant capacity | Aspartic acid, Cysteine, Glycine, Proline |
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Functions and Benefits of Fulvic Acid in Agriculture