Skip to main content
PMC home page
Plant Physiology logoLink to Plant Physiology
. 1983 Mar;71(3):541–546. doi: 10.1104/pp.71.3.541

Inhibition of Ethylene Biosynthesis in Carnation Petals by Cytokinin 1

Yoram Mor 1, Hanna Spiegelstein 1, Abraham H Halevy 1
PMCID: PMC1066074  PMID: 16662863

Abstract

Pretreatment of detached carnation petals (Dianthus caryophyllus cv White Sim) for 24 hours with 0.1 millimolar of the cytokinins n6-benzyl-adenine (BA), kinetin, and zeatin blocked the conversion of externally supplied 1-aminocyclopropane-1-carboxylic acid (ACC) to ethylene and delayed petal senescence by 8 days. The normal enhanced wilting and increase in endogenous levels of ACC and ethylene production following exposure of petals to ethylene (16 μl/l for 10 hours), were not observed in BA-pretreated petals. In carnation foliage leaves pretreated with 0.1 mm BA, a reduction rather than inhibition of the conversion of exogenous ACC to ethylene was observed. This indicates that foliage leaves respond to cytokinins in a different way than petals. A constant 24-hour treatment with BA (0.1 mm) was not able to reduce ethylene production of senescing carnation petals, while 2 mm aminoxyacetic acid, a known inhibitor of ACC synthesis, or 10 mm propyl gallate, a free radical scavenger, decreased ethylene production significantly.

Full text

PDF
541

Selected References

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

  1. Adams D. O., Yang S. F. Ethylene biosynthesis: Identification of 1-aminocyclopropane-1-carboxylic acid as an intermediate in the conversion of methionine to ethylene. Proc Natl Acad Sci U S A. 1979 Jan;76(1):170–174. doi: 10.1073/pnas.76.1.170. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Apelbaum A., Burgoon A. C., Anderson J. D., Solomos T., Lieberman M. Some Characteristics of the System Converting 1-Aminocyclopropane-1-carboxylic Acid to Ethylene. Plant Physiol. 1981 Jan;67(1):80–84. doi: 10.1104/pp.67.1.80. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Apelbaum A., Wang S. Y., Burgoon A. C., Baker J. E., Lieberman M. Inhibition of the Conversion of 1-Aminocyclopropane-1-carboxylic Acid to Ethylene by Structural Analogs, Inhibitors of Electron Transfer, Uncouplers of Oxidative Phosphorylation, and Free Radical Scavengers. Plant Physiol. 1981 Jan;67(1):74–79. doi: 10.1104/pp.67.1.74. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Beyer E. M. A potent inhibitor of ethylene action in plants. Plant Physiol. 1976 Sep;58(3):268–271. doi: 10.1104/pp.58.3.268. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Eisinger W. Role of cytokinins in carnation flower senescence. Plant Physiol. 1977 Apr;59(4):707–709. doi: 10.1104/pp.59.4.707. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Lizada M. C., Yang S. F. A simple and sensitive assay for 1-aminocyclopropane-1-carboxylic acid. Anal Biochem. 1979 Nov 15;100(1):140–145. doi: 10.1016/0003-2697(79)90123-4. [DOI] [PubMed] [Google Scholar]
  7. Mayak S., Halevy A. H. Cytokinin activity in rose petals and its relation to senescence. Plant Physiol. 1970 Oct;46(4):497–499. doi: 10.1104/pp.46.4.497. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Mayak S., Vaadia Y., Dilley D. R. Regulation of Senescence in Carnation (Dianthus caryophyllus) by Ethylene: Mode of Action. Plant Physiol. 1977 Apr;59(4):591–593. doi: 10.1104/pp.59.4.591. [DOI] [PMC free article] [PubMed] [Google Scholar]

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

RESOURCES