Dissimilar effects of L and D amino acids on the growth of Tetrahymena.
Of the L and D configurations of four amino acids (phenylalanine, valine, tryptophan, tyrosine) tested for influence on the growth rate of Tetrahymena, only L-tyrosine was able to induce imprinting in Tetrahymena pyriformis Zeuthen. D-valine stimulated the division of T. pyriformis NT-1, but failed to induce imprinting. The experiments have substantiated the selectivity of the amino acid receptors of T. pyriformis, and the extraordinary imprinting potential of tyrosine as well, as judged by its influence on the growth rate.
Darvas
Z
Z
Department of Biology, Semmelweis University of Medicine, Budapest, Hungary.
Nozawa
Y
Y
Csaba
G
G
D000596:Amino Acids / Q000494:pharmacology / Q000502:physiology; D000818:Animals; D002455:Cell Division / Q000187:drug effects; D007173:Imprinting, Psychological / Q000187:drug effects*; D017459:Receptors, Amino Acid; D011956:Receptors, Cell Surface / Q000187:drug effects / Q000502:physiology*; D013237:Stereoisomerism; D013768:Tetrahymena / Q000187:drug effects / Q000254:growth & development*; D014443:Tyrosine / Q000494:pharmacology / Q000502:physiology*; D014633:Valine / Q000494:pharmacology / Q000502:physiology*
D000596:Amino Acids; D017459:Receptors, Amino Acid; D011956:Receptors, Cell Surface; D014443:Tyrosine; D014633:Valine