Question of the ribosyl moiety in the promotion of callus growth by exogenously added cytokinins

Sidney Hecht, Robert M. Bock, Ruth Y. Schmitz, Folke Skoog, Nelson J. Leonard, John L. Occolowitz

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

We have examined the role of the 9 position and the influence of the 9-substituents on the cytokinin activity of N6-(isopent(en)yl)adenine derivatives. Five new cytokinin analogs have been employed in this study: 7-(3-methyl-2-butenylamino)pyrazolo[4,3-d]pyrimidine, 3-methyl-7-(3- methyl-2-butenylamino)pyrazolo[4,3-d]pyrimidine, 7-(3-methyl-2- buteny lamino)-3-β-D-ribofuranosylpyrazolo[4,3-(flpyrimidine, 7-(3-methylbutylamino)pyrazolo[4,5-d]pyrimidine, and 3-methyl-7-(3-methylbutylamino)pyrazolo[4,3-d]pyrimidine. Their activities have been compared with those of the corresponding purine derivatives. The relative biological activities in the tobacco bioass;ay suggested that the addition of a ribosyl moiety in the 9 position of exogenously supplied cytokinins is not a prerequisite for their promotion of cell division and growth of plant tissue.

Original languageEnglish (US)
Pages (from-to)4224-4228
Number of pages5
JournalBiochemistry
Volume10
Issue number23
StatePublished - 1971
Externally publishedYes

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Cytokinins
Bony Callus
Growth
Derivatives
Tobacco
Adenine
Bioactivity
Cell Division
Cells
Tissue
pyrimidine

ASJC Scopus subject areas

  • Biochemistry

Cite this

Hecht, S., Bock, R. M., Schmitz, R. Y., Skoog, F., Leonard, N. J., & Occolowitz, J. L. (1971). Question of the ribosyl moiety in the promotion of callus growth by exogenously added cytokinins. Biochemistry, 10(23), 4224-4228.

Question of the ribosyl moiety in the promotion of callus growth by exogenously added cytokinins. / Hecht, Sidney; Bock, Robert M.; Schmitz, Ruth Y.; Skoog, Folke; Leonard, Nelson J.; Occolowitz, John L.

In: Biochemistry, Vol. 10, No. 23, 1971, p. 4224-4228.

Research output: Contribution to journalArticle

Hecht, S, Bock, RM, Schmitz, RY, Skoog, F, Leonard, NJ & Occolowitz, JL 1971, 'Question of the ribosyl moiety in the promotion of callus growth by exogenously added cytokinins', Biochemistry, vol. 10, no. 23, pp. 4224-4228.
Hecht S, Bock RM, Schmitz RY, Skoog F, Leonard NJ, Occolowitz JL. Question of the ribosyl moiety in the promotion of callus growth by exogenously added cytokinins. Biochemistry. 1971;10(23):4224-4228.
Hecht, Sidney ; Bock, Robert M. ; Schmitz, Ruth Y. ; Skoog, Folke ; Leonard, Nelson J. ; Occolowitz, John L. / Question of the ribosyl moiety in the promotion of callus growth by exogenously added cytokinins. In: Biochemistry. 1971 ; Vol. 10, No. 23. pp. 4224-4228.
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