δ13C Analysis to Approach the Mechanism of Varietal Difference of Photosynthetic Rate in Rice Plants

  • H. Sasaki
  • M. Samejima
  • R. Ishii

Abstract

We have been so far conducting the research of varietal difference of apparent photosynthetic rate per unit leaf area (APS) in rice plants, aiming to clarify the mechanism of APS determination. APS is limited by the following two CO2 diffusion resistances, stomatal (Rs), and mesophyll (Rm) one. However, the process limited by Rm involves so many different kinds of physical and chemical processes. The purpose of this paper is to divide Rm further to two resistances. One is the physical CO2 diffusion resistance from the stomatal cavity to the CO2 fixation site in the chroloplasts, and the other is the chemical reaction resistance at the site of ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBisCO).

Keywords

Rice Plant Unit Leaf Area Carbon Isotope Discrimination Varietal Difference Fixation Site 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1990

Authors and Affiliations

  • H. Sasaki
    • 1
  • M. Samejima
    • 2
  • R. Ishii
    • 1
  1. 1.Faculty of AgricultureThe University of TokyoBunkyo-ku, Tokyo 113Japan
  2. 2.National Institute of Agrobiological ResourcesTsukuba, Ibaraki 305Japan

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