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. 1969 Feb;44(2):251–254. doi: 10.1104/pp.44.2.251

Kinetics of Abscission in the Bean Petiole Explant 1

R K dela Fuente a, A C Leopold a
PMCID: PMC396070  PMID: 16657054

Abstract

The progress of bean petiole abscission has been followed using quantitative measurements of the mechanical force required to break explants at the separation zone. It is found that the shortest time for a measurable effect of ethylene (1 ppm) in stimulating the development of frangibility is about 1 hr. Removal of the ethylene is followed by a return to the endogenous rate of weakening, the slower rate being established in 1 hr. Application of the inhibitor cycloheximide leads to a cessation of abscission development within one-half hr. As in the stimulations of certain plant processes with auxins, gibberellins, and cytokinins. ethylene stimulation of abscission requires the continuous presence of the regulator.

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Selected References

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

  1. Abeles F. B., Holm R. E., Gahagan H. E. Abscission: the role of aging. Plant Physiol. 1967 Oct;42(10):1351–1356. doi: 10.1104/pp.42.10.1351. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Abeles F. B. Role of RNA and protein synthesis in abscission. Plant Physiol. 1968 Sep;43(9 Pt B):1577–1586. [PMC free article] [PubMed] [Google Scholar]
  3. Abeles F. B., Rubinstein B. Regulation of Ethylene Evolution and Leaf Abscission by Auxin. Plant Physiol. 1964 Nov;39(6):963–969. doi: 10.1104/pp.39.6.963. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Addicott F. T., Lynch R. S., Livingston G. A., Hunter J. K. A METHOD FOR THE STUDY OF FOLIAR ABSCISSION IN VITRO. Plant Physiol. 1949 Jul;24(3):537–539. doi: 10.1104/pp.24.3.537. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Brandes H., Kende H. Studies on cytokinin-controlled bud formation in moss protonemata. Plant Physiol. 1968 May;43(5):827–837. doi: 10.1104/pp.43.5.827. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Chrispeels M. J., Varner J. E. Gibberellic Acid-enhanced synthesis and release of alpha-amylase and ribonuclease by isolated barley and aleurone layers. Plant Physiol. 1967 Mar;42(3):398–406. doi: 10.1104/pp.42.3.398. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Dela Fuente R. K., Leopold A. C. Senescence processes in leaf abscission. Plant Physiol. 1968 Sep;43(9 Pt B):1496–1502. [PMC free article] [PubMed] [Google Scholar]
  8. Holm R. E., Abeles F. B. Abscission: the role of RNA synthesis. Plant Physiol. 1967 Aug;42(8):1094–1102. doi: 10.1104/pp.42.8.1094. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Scott P. C., Leopold A. C. Abscission as a mobilization phenomenon. Plant Physiol. 1966 May;41(5):826–830. doi: 10.1104/pp.41.5.826. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. van Overbeek J. Plant hormones and regulators. Science. 1966 May 6;152(3723):721–731. doi: 10.1126/science.152.3723.721. [DOI] [PubMed] [Google Scholar]

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