Photosynthesis Research

, Volume 39, Issue 3, pp 453–462

Biochemical and molecular basis for impairment of photosynthetic potential

  • Eva J. Pell
  • Nancy A. Eckardt
  • Richard E. Glick
Terrestrial photosynthesis Minireview

DOI: 10.1007/BF00014598

Cite this article as:
Pell, E.J., Eckardt, N.A. & Glick, R.E. Photosynth Res (1994) 39: 453. doi:10.1007/BF00014598

Abstract

Ozone induces reductions in net photosynthesis in a large number of plant species. A primary mechanism by which photosynthesis is reduced is through impact on carbon dioxide fixation. Ozone induces loss in Rubisco activity associated with loss in concentration of the protein. Evidence is presented that ozone may induce oxidative modification of Rubisco leading to subsequent proteolysis. In addition, plants exposed to ozone sustain reduction in rbcS, the mRNA for the small subunit of Rubisco. This loss in rbcS mRNA may lead to a reduced potential for synthesis of the protein. The regulation of O3-induced loss of Rubisco, and implications of the decline in this protein in relation to accelerated senescence are discussed.

Key words

photosynthesisRubiscoozoneoxidative stressrbcS mRNA

Copyright information

© Kluwer Academic Publishers 1994

Authors and Affiliations

  • Eva J. Pell
    • 1
    • 2
  • Nancy A. Eckardt
    • 3
  • Richard E. Glick
    • 1
    • 2
  1. 1.Department of Plant Pathologythe Pennsylvania State UniversityUniversity ParkUSA
  2. 2.Environmental Resources Research Institutethe Pennsylvania State UniversityUniversity ParkUSA
  3. 3.Graduate Program in Plant Physiologythe Pennsylvania State UniversityUniversity ParkUSA