Photorespiration in Green Plants During Photosynthesis Estimated by Use of Isotopic CO2
- 1 July 1968
- journal article
- research article
- Published by Oxford University Press (OUP) in Plant Physiology
- Vol. 43 (7) , 1129-1132
- https://doi.org/10.1104/pp.43.7.1129
Abstract
Photosynthetic re-absorption of photorespired CO2 causes underestimation in measured photorespiration and turnover rate of the substrate for photorespiration. Actual values of photorespiration exceed the measured by a factor greater than 1 + R′w/rp + [CL]x/(rp·Lx). (R′w and rp are the partial resistances to CO2 uptake between atmosphere, mesophyll evaporating surface, and photosynthetic sink, respectively; Lx is the measured flux of photorespired CO2 and [CL]x is the ambient conc of photorespired CO2). In 8 species, 1 + R′w/rp alone amounted to a correction ranging between 148% and 233%.This publication has 6 references indexed in Scilit:
- Species Characteristics in Whole Plant Resistances to Water Vapour and CO 2 DiffusionJournal of Applied Ecology, 1967
- Respiration of Leaves During Photosynthesis I. Estimates from an Electrical AnalogueAustralian Journal of Biological Sciences, 1967
- Apparent Reassimilation of Respiratory Carbon Dioxide by Different Plant SpeciesPhysiologia Plantarum, 1967
- Experiments on the origin of CO2 released by tobacco leaf segments in the lightPhytochemistry, 1966
- Respiration of Leaves in Light and Darkness1Crop Science, 1966
- The Influence of Several Transpiration Suppressants on Transpiration, Photosynthesis, and Water-Use Efficiency of Cotton LeavesAustralian Journal of Biological Sciences, 1964