Skip to main content
Plant Physiology logoLink to Plant Physiology
. 1989 Jul;90(3):1029–1034. doi: 10.1104/pp.90.3.1029

Relationship between the Quantum Efficiencies of Photosystems I and II in Pea Leaves 1

Jeremy Harbinson 1,2, Bernard Genty 1,2, Neil R Baker 1,2
PMCID: PMC1061839  PMID: 16666847

Abstract

The irradiance dependence of the efficiencies of photosystems I and II were measured for two pea (Pisum sativum [L.]) varieties grown under cold conditions and one pea variety grown under warm conditions. The efficiencies of both photosystems declined with increasing irradiance for all plants, and the quantum efficiency of photosystem I electron transport was closely correlated with the quantum efficiency of photosystem II electron transport. In contrast to the consistent pattern shown by efficiency of the photosystems, the redox state of photosystem II (as estimated from the photochemical quenching coefficient of chlorophyll fluorescence) exhibited relationships with both irradiance and the reduction of P-700 that varied with growth environment and genotype. This variability is considered in the context of the modulation of photosystem II quantum efficiency by both photochemical and nonphotochemical quenching of excitation energy.

Full text

PDF
1029

Selected References

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

  1. Amesz J., Visser J. W., van den Engh G. J., Dirks M. P. Reaction kinetics of intermediates of the photosynthetic chain between the two photosystems. Biochim Biophys Acta. 1972 Feb 28;256(2):370–380. doi: 10.1016/0005-2728(72)90067-9. [DOI] [PubMed] [Google Scholar]
  2. Butler W. L., Kitajima M. Fluorescence quenching in photosystem II of chloroplasts. Biochim Biophys Acta. 1975 Jan 31;376(1):116–125. doi: 10.1016/0005-2728(75)90210-8. [DOI] [PubMed] [Google Scholar]
  3. Demmig B., Winter K., Krüger A., Czygan F. C. Photoinhibition and zeaxanthin formation in intact leaves : a possible role of the xanthophyll cycle in the dissipation of excess light energy. Plant Physiol. 1987 Jun;84(2):218–224. doi: 10.1104/pp.84.2.218. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Falkowski P. G., Fujita Y., Ley A., Mauzerall D. Evidence for Cyclic Electron Flow around Photosystem II in Chlorella pyrenoidosa. Plant Physiol. 1986 May;81(1):310–312. doi: 10.1104/pp.81.1.310. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. JOLIOT A., JOLIOT P. ETUDE CIN'ETIQUE DE LA R'EACTION PHOTOCHIMIQUE LIB'ERANT L'OXYG'ENE AU COURS DE LA PHOTOSYNTH'ESE. C R Hebd Seances Acad Sci. 1964 May 4;258:4622–4625. [PubMed] [Google Scholar]
  6. Kitajima M., Butler W. L. Quenching of chlorophyll fluorescence and primary photochemistry in chloroplasts by dibromothymoquinone. Biochim Biophys Acta. 1975 Jan 31;376(1):105–115. doi: 10.1016/0005-2728(75)90209-1. [DOI] [PubMed] [Google Scholar]
  7. Kyle D. J., Ohad I., Arntzen C. J. Membrane protein damage and repair: Selective loss of a quinone-protein function in chloroplast membranes. Proc Natl Acad Sci U S A. 1984 Jul;81(13):4070–4074. doi: 10.1073/pnas.81.13.4070. [DOI] [PMC free article] [PubMed] [Google Scholar]

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

RESOURCES