Cytokinins: Synthesis and growth-promoting activity of 2-substituted compounds in the N6-isopentenyladenine and zeatin series

Sidney M. Hecht, Nelson J. Leonard, Ruth Y. Schmitz, Folke Skoog

Research output: Contribution to journalArticle

33 Scopus citations

Abstract

Fourteen compounds were tested for relative promotion of cell division and growth (cytokinin) activity in the tobacco bioassay. The results suggested that 2-substituted-N6-(hydroxy)isopentenylaminopurines were generally less active than their unsubstituted couterparts. Thus, a 2-OH substituent greatly lowered cytokinin activity in both the isopentenyl and hydroxyisopentenyl (zeatin) series, while 2-NH2 and 2-SCH3 groups had a lesser effect on activity and a 2-Cl substituent had a negligible effect. Mass spectra were determined for all of the 9-β-d-ribofuranosides and for a number of the purines as well; the fragmentation patterns were consistent and characteristic, providing a possible systematic approach to the identification of new 2-substituted-N6-(hydroxy)isopentenyladenines.

Original languageEnglish (US)
Pages (from-to)1173-1180
Number of pages8
JournalPhytochemistry
Volume9
Issue number6
DOIs
StatePublished - Jun 1970
Externally publishedYes

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Biology
  • Plant Science
  • Horticulture

Fingerprint Dive into the research topics of 'Cytokinins: Synthesis and growth-promoting activity of 2-substituted compounds in the N<sup>6</sup>-isopentenyladenine and zeatin series'. Together they form a unique fingerprint.

  • Cite this