Skip to main content
Plant Physiology logoLink to Plant Physiology
. 1970 Jan;45(1):14–18. doi: 10.1104/pp.45.1.14

Cytokinins in Seeds of Pumpkin

Geeta R P Gupta a, S C Maheshwari a
PMCID: PMC396346  PMID: 16657272

Abstract

Extracts of seeds of pumpkin (Cucurbita pepo Linn.) contain three chromatographically distinguishable cytokinins which are held on Dowex 50-W and are extractable by ethanol and n-butanol. Two of the active factors are precipitable by silver nitrate at acidic pH. The chromatographic behavior and the spectral characteristics of one of these cytokinins are similar to those of zeatin. However, the RF values of the other two active compounds do not match with those of any of the known natural cytokinins.

Full text

PDF
16

Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Burrows W. J., Armstrong D. J., Skoog F., Hecht S. M., Boyle J. T., Leonard N. J., Occolowitz J. Cytokinin from soluble RNA of Escherichia coli: 6-(3-methyl-2-butenylamino)-2-methylthio-9-beta-D-ribofuranosylpurine. Science. 1968 Aug 16;161(3842):691–693. doi: 10.1126/science.161.3842.691. [DOI] [PubMed] [Google Scholar]
  2. COHN W. E. Some results of the applications of ion-exchange chromatography to nucleic acid chemistry. J Cell Physiol Suppl. 1951 Jul;38(Suppl 1):21–40. doi: 10.1002/jcp.1030380405. [DOI] [PubMed] [Google Scholar]
  3. Fittler F., Kline L. K., Hall R. H. Biosynthesis of N6-(delta-2-isopentenyl) adenosine. The precursor relationship of acetate and mevalonate to the delta-2-isopentenyl group of the transfer ribonucleic acid of microorganisms. Biochemistry. 1968 Mar;7(3):940–944. doi: 10.1021/bi00843a009. [DOI] [PubMed] [Google Scholar]
  4. Hall R. H., Csonka L., David H., McLennan B. Cytokinins in the soluble RNA of plant tissues. Science. 1967 Apr 7;156(3771):69–71. doi: 10.1126/science.156.3771.69. [DOI] [PubMed] [Google Scholar]
  5. Helgeson J. P., Leonard N. J. Cytokinins: identification of compounds isolated from Corynebacterium fascians. Proc Natl Acad Sci U S A. 1966 Jul;56(1):60–63. doi: 10.1073/pnas.56.1.60. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Klämbt D., Thies G., Skoog F. Isolation of cytokinins from Corynebacterium fascians. Proc Natl Acad Sci U S A. 1966 Jul;56(1):52–59. doi: 10.1073/pnas.56.1.52. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. LETHAM D. S. ZEATIN, A FACTOR INDUCING CELL DIVISION ISOLATED FROM ZEA MAYS. Life Sci. 1963 Aug;8:569–573. doi: 10.1016/0024-3205(63)90108-5. [DOI] [PubMed] [Google Scholar]
  8. Madison J. T., Everett G. A., Kung H. K. Oligonucleoides from yeast tyrosine transfer ribonucleic acid. J Biol Chem. 1967 Mar 25;242(6):1318–1323. [PubMed] [Google Scholar]
  9. Matsubara S., Armstrong D. J., Skoog F. Cytokinins in tRNA of Corynebacterium fascians. Plant Physiol. 1968 Mar;43(3):451–453. doi: 10.1104/pp.43.3.451. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Miller C. O. A KINETIN-LIKE COMPOUND IN MAIZE. Proc Natl Acad Sci U S A. 1961 Feb;47(2):170–174. doi: 10.1073/pnas.47.2.170. [DOI] [PMC free article] [PubMed] [Google Scholar]
  11. Miller C. O. Evidence for the natural occurrence of zeatin and derivatives: compounds from maize which promote cell division. Proc Natl Acad Sci U S A. 1965 Oct;54(4):1052–1058. doi: 10.1073/pnas.54.4.1052. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. Peterkofsky A. The incorporation of mevalonic acid into the N6-(delta 2-isopentenyl) adenosine of transfer ribonucleic acid in Lactobacillus acidophilus. Biochemistry. 1968 Jan;7(1):472–482. doi: 10.1021/bi00841a059. [DOI] [PubMed] [Google Scholar]
  13. Zachau H. G., Dütting D., Feldmann H. Nucleotide sequences of two serine-specific transfer ribonucleic acids. Angew Chem Int Ed Engl. 1966 Apr;5(4):422–422. doi: 10.1002/anie.196604221. [DOI] [PubMed] [Google Scholar]

Articles from Plant Physiology are provided here courtesy of Oxford University Press

RESOURCES