HIGHLIGHTS
SUMMARY
The main nitrogenous substances of herbaceous plants are proteins, free amino_acids and their amides, nucleic_acids, nucleotides, and nitrogenous bases. The green mass of the cocksfoot was found to contain 19 free amino_acids, including six essential (valine, leucine, isoleucine, phenylalanine, tyrosine, tryptophan), and the nucleoside adenosine (Suppl. Nine of them (valine, alanine, leucine, isoleucine, glycine, threonine, serine, aspartic and glutamic acids and their derivatives - asparagine and glutamine; ornithine) were aliphatic; three (phenylalanine, tyrosine and tryptophan) - aromatic and two (proline and oxyproline) - heterocyclic amino_acids. A quite high content of pipecolic acid, which is related to non . . .
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