Skip to main content
PMC home page
Plant Physiology logoLink to Plant Physiology
. 1972 Dec;50(6):687–693. doi: 10.1104/pp.50.6.687

Phytochrome-mediated Electric Potential Changes in Oat Seedlings 1

Ian A Newman a,2, Winslow R Briggs a
PMCID: PMC366217  PMID: 16658244

Abstract

Brief exposures to red light induce far red-reversible changes of 5 to 10 millivolts magnitude in the upper 1 centimeter of etiolated Avena coleoptiles. The changes begin within 15 seconds of the start of illumination and they continue for at least 12 minutes. The changes were measured using a flowing solution of 10 mm KCl to contact the surface of the coleoptile. A dark-grown coleoptile shows no change in response to far red light unless it first receives red light treatment. The second of two red light exposures is ineffective without an intervening far red treatment. Some characterization of these electric responses to light is presented.

Full text

PDF
687

Selected References

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

  1. Briggs W. R., Chon H. P. The physiological versus the spectrophotometric status of phytochrome in corn coleoptiles. Plant Physiol. 1966 Sep;41(7):1159–1166. doi: 10.1104/pp.41.7.1159. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Briggs W. R., Siegelman H. W. Distribution of Phytochrome in Etiolated Seedlings. Plant Physiol. 1965 Sep;40(5):934–941. doi: 10.1104/pp.40.5.934. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Butler W. L., Lane H. C. Dark Transformations of Phytochrome in vivo. II. Plant Physiol. 1965 Jan;40(1):13–17. doi: 10.1104/pp.40.1.13. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Butler W. L., Norris K. H., Siegelman H. W., Hendricks S. B. DETECTION, ASSAY, AND PRELIMINARY PURIFICATION OF THE PIGMENT CONTROLLING PHOTORESPONSIVE DEVELOPMENT OF PLANTS. Proc Natl Acad Sci U S A. 1959 Dec;45(12):1703–1708. doi: 10.1073/pnas.45.12.1703. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Chon H. P., Briggs W. R. Effect of red light on the phototropic sensitivity of corn coleoptiles. Plant Physiol. 1966 Dec;41(10):1715–1724. doi: 10.1104/pp.41.10.1715. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Hendricks S. B., Borthwick H. A. The function of phytochrome in regulation of plant growth. Proc Natl Acad Sci U S A. 1967 Nov;58(5):2125–2130. doi: 10.1073/pnas.58.5.2125. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Hunter D. M., Jaffe N. S. Acquired central lenticular cleft. Trans Am Acad Ophthalmol Otolaryngol. 1970 Sep-Oct;74(5):999–1004. [PubMed] [Google Scholar]
  8. Jaffe M. J. Phytochrome-mediated bioelectric potentials in mung bean seedlings. Science. 1968 Nov 29;162(3857):1016–1017. doi: 10.1126/science.162.3857.1016. [DOI] [PubMed] [Google Scholar]
  9. Pike C. S., Briggs W. R. The dark reactions of rye phytochrome in vivo and in vitro. Plant Physiol. 1972 Apr;49(4):514–520. doi: 10.1104/pp.49.4.514. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Pratt L. H., Briggs W. R. Photochemical and Nonphotochemical Reactions of Phytochrome in vivo. Plant Physiol. 1966 Mar;41(3):467–474. doi: 10.1104/pp.41.3.467. [DOI] [PMC free article] [PubMed] [Google Scholar]
  11. Pratt L. H., Coleman R. A. Immunocytochemical localization of phytochrome. Proc Natl Acad Sci U S A. 1971 Oct;68(10):2431–2435. doi: 10.1073/pnas.68.10.2431. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. Tanada T. A rapid photoreversible response of barley root tips in the presence of 3-indoleacetic Acid. Proc Natl Acad Sci U S A. 1968 Feb;59(2):376–380. doi: 10.1073/pnas.59.2.376. [DOI] [PMC free article] [PubMed] [Google Scholar]
  13. Tanada T. Substances essential for a red, far-red light reversible attachment of mung bean root tips to glass. Plant Physiol. 1968 Dec;43(12):2070–2071. doi: 10.1104/pp.43.12.2070. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. Wilkins M. B. Red Light and the Geotropic Response of the Avena Coleoptile. Plant Physiol. 1965 Jan;40(1):24–34. doi: 10.1104/pp.40.1.24. [DOI] [PMC free article] [PubMed] [Google Scholar]

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

RESOURCES