Photosynthesis Research

, Volume 39, Issue 3, pp 389–400

Effects of nitrogen supply on the acclimation of photosynthesis to elevated CO2

Authors

  • Roger Pettersson
    • Department of Ecology and Environmental ResearchSwedish University of Agricultural Sciences
  • A. James S. McDonald
    • Department of Ecology and Environmental ResearchSwedish University of Agricultural Sciences
Terrestrial photosynthesis Minireview

DOI: 10.1007/BF00014593

Cite this article as:
Pettersson, R. & McDonald, A.J.S. Photosynth Res (1994) 39: 389. doi:10.1007/BF00014593

Abstract

A common observation in plants grown in elevated CO2 concentration is that the rate of photosynthesis is lower than expected from the dependence of photosynthesis upon CO2 concentration in single leaves of plants grown at present CO2 concentration. Furthermore, it has been suggested that this apparent down regulation of photosynthesis may be larger in leaves of plants at low nitrogen supply than at higher nitrogen supply. However, the available data are rather limited and contradictory. In this paper, particular attention is drawn to the way in which whole plant growth response to N supply constitutes a variable sink strength for carbohydrate usage and how this may affect photosynthesis. The need for further studies of the acclimation of photosynthesis at elevated CO2 in leaves of plants whose N supply has resulted in well-defined growth rate and sink activity is emphasised, and brief consideration is made of how this might be achieved.

Key words

elevated CO2nitrogen supplyphotosynthesisacclimationgrowth

Abbreviations

A

rate of CO2 assimilation

Ci

internal CO2 concentration

PCR

photosynthetic carbon reduction

Rubisco

Ribulose 1,5-bisphosphate carboxylase/oxygenase

RuBP

ribulose 1,5-bisphosphate

Copyright information

© Kluwer Academic Publishers 1994