Estimates of respiration as a fraction of photosynthesis for maize, rice and wheat

Range 0.3-0.6 Unitless
Organism Biosphere
Reference Jeffrey S. Amthor, The McCree-de Wit-Penning de Vries-Thornley Respiration Paradigms: 30 Years Later, Annals of Botany 86: 1-20, 2000 doi: 10.1006/anbo.2000.1175 Table A1 link - link
Primary Source Amthor JS. 1989. Respiration and crop productivity. New York:Springer Verlag. Table 6.1
Comments Defining, and measuring, higher-plant respiration is difficult. Biochemically, respiration can be deined as the sum of glycolysis, the oxidative pentose phosphate pathway (or network), the tricarboxylic acid (TCA) or Krebs cycle, mitochondrial e- transport, oxidative phosphorylation, and intimately related reactions. A physiological definition of respiration is non-photorespiratory CO2 release (photorespiration being associated with photosynthesis), though photorespiration can contribute directly to mitochondrial e- transport.
Entered by Uri M
ID 103803