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Effect of a cytokinin antagonist on cytokinin and light-dependent amaranthin synthesis inAmaranthus Tricolor seedlings

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Abstract

InAmaranthus tricolor seedlings, amaranthin synthesis can be induced under the effect either of a cytokinin or of white light. The 3-methyl-7-(n-pentylamino)pyrazolo(4,3-d)pyrimidine (PAMPP), a cytokinin analog that strongly inhibits the growth of tobacco callus, antagonizes the stimulating effect of cytokinin as well as stimulation by light. In dose-response terms, the inhibitory effect of PAMPP was described as competitive with respect to N6-benzyladenine (b6Ade) or light. The inhibition by PAMPP of the b6Ade amaranthin test response or the inhibition by this cytokinin analog of the light amaranthin test response were both reversed by either subsequent light or b6Ade treatment.

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Abbreviations

PAMPP:

3-methyl-7-(n-pentylamino)pyrazolo(4,3-d)pyrimidine

b6Ade:

N6-ben-zyladenine

i6Ade:

6-(3-methyl-2-butenylamino)purine

References

  • Colomas J (1975) Rôle des cotylédons dans l'induction de la synthèse d'amarantine chez des plantules d'Amarantus tricolor L. var.bicolor ruber Hort. CR Acad Sci Paris 280:1249–1252

    Google Scholar 

  • Colomas J (1976) Etude des pigments bétalaïques chez les plantules d'Amarantus tricolor L. var.bicolor ruber Hort.: Mise en évidence de l'amarantine. CR Acad Sci Paris 283:1037–1039

    CAS  Google Scholar 

  • Elliott DC (1979) Ionic regulation for cytokinin-dependent betacyanin synthesis inAmaranthus seedlings. Plant Physiol 63:264–268

    PubMed  CAS  Google Scholar 

  • Gregorini G, Laloue M (1980) Biological effects of cytokinin antagonists 7-(pentylamino) and 7-(benzylamino)-3-methylpyrazolo(4,3-d)pyrimidines on suspension-cultured tobacco cells. Plant Physiol 65:363–367

    PubMed  CAS  Google Scholar 

  • Hecht SM, Bock RM, Schmitz RY, Skoog F, Leonard NJ (1971) Cytokinins: Development of a potent antagonist. Proc Nat Acad Sci USA 68:2608–2610

    Article  PubMed  CAS  Google Scholar 

  • Iwamura H, Masuda N, Koshimizu K, Matsubara S (1979) Cytokinin-antagonistic and antagonistic activities of 4-substituted-2-methylpyrrolo(2,3-d)pyrimidines, 7-deaza analogs of cytokinin active-adenine derivatives. Phytochem 18:217–222

    Article  CAS  Google Scholar 

  • Köhler KH, Dörfler M, Göring H (1980) The influence of light on the cytokinin content ofAmaranthus seedlings. Biol Plant 22:128–134

    Article  Google Scholar 

  • Laloue M (1980) Etude de l'importance fonctionnelle des processus d'absorption et des transformations métaboliques des cytokinines dans l'expression de leur activité biologique chez les cellules deNicotiana tabacum. Thèse de Doctorat d'Etat, Paris

  • Piattelli M, Giudici de Nicola M, Castrogiovanni V (1969) Photocontrol of amaranthin synthesis inAmaranthus tricolor. Phytochem 8:731–736

    Article  CAS  Google Scholar 

  • Skoog F, Schmitz RY, Bock RM, Hecht SM (1973) Cytokinin antagonists: Synthesis and physiological effects of 7-substituted 3-methylpyrazolo(4,3-d)pyrimidines. Phytochem 12:25–37

    Article  CAS  Google Scholar 

  • Skoog F, Schmitz RY, Hecht SM, Frye RB (1975) Anticytokinin activity of substituted pyrrolo(2,3-d)pyrimidines. Proc Nat Acad Sci USA 72:3508–3512

    Article  PubMed  CAS  Google Scholar 

  • Withrow RB, Price L (1957) A darkroom safelight for research in plant physiology. Plant Physiol 32:244–248

    Article  PubMed  CAS  Google Scholar 

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Authors and Affiliations

  1. Laboratoire de Physiologie Végétale, Faculté des Sciences et des Techniques, Parc Valrose, 06034, Nice Cédex, France

    Jacqueline Bianco-Colomas

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  1. Jacqueline Bianco-Colomas
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Bianco-Colomas, J. Effect of a cytokinin antagonist on cytokinin and light-dependent amaranthin synthesis inAmaranthus Tricolor seedlings. J Plant Growth Regul 2, 281–287 (1983). https://doi.org/10.1007/BF02042256

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  • DOI: https://doi.org/10.1007/BF02042256

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