Summary
Net photosynthesis of tropical legume leaves increased by 44% and that of tropical grass leaves was unaffected when oxygen concentration was reduced from 21 to 0.2%. Stomatal resistance to carbon dioxide diffusion was unaltered in both cases but mesophyll resistance of legume leaves decreased with oxygen concentration. It is proposed that the decrease in mesophyll resistance is accompanied by decreases in excitation and carboxylation resistances.
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Björkman, O.: The effect of oxygen concentration on photosynthesis in higher plants. Physiol. Plantarum (Cph.) 19, 618–633 (1966).
—: Further studies of the effect of oxygen concentration on photosynthetic CO2 uptake in higher plants. Carnegie Inst. Wash. Year Book 66, 220–228 (1968).
—, Gauhl, E.; Effect of temperature and oxygen concentration on photosynthesis in Marchantia polymorpha. Carnegie Inst. Wash. Year Book 67, 479–482 (1969).
—, Holmgren, P.: Adaptability of the photosynthetic apparatus to light intensity in ecotypes from exposed and shaded habitats. Physiol. Plantarum (Cph.) 16, 889–914 (1963).
Bull, T. A.: Photosynthetic efficiencies and photorespiration in Calvin cycle and C4-dicarboxylic acid plants. Crop Sci. 9, 126–129 (1969).
Collander, R.: Cell membranes, their resistance to penetration and their capacity for transport (F. C. Steward, ed.), p. 3–102. New York-London: Academic Press 1959.
Downes, R. W., Hesketh, J.: Enhanced photosynthesis at low oxygen concentrations: differential response of temperature and tropical grasses. Planta (Berl.) 78, 79–84 (1968).
Downton, W. J. S., Tregunna, E. B.: Photorespiration and glycollate metabolism: a re-examination and correlation of some previous studies. Pl. Physiol. (Lancaster) 43, 923–929 (1968).
Forrester, M. L., Krotkov, G., Nelson, C. D.: Effect of oxygen on photosynthesis, photorespiration and respiration in detached leaves. I. Soybean. Pl. Physiol. (Lancaster) 41, 422–427 (1966a).
———: Effect of oxygen on photosynthesis, photorespiration and respiration in detached leaves. II. Corn and other monocotyledons. Pl. Physiol. (Lancaster) 41, 428–431 (1966b).
Gauhl, E., Björkman, O.: Simultaneous measurements on the effect of oxygen concentration on water vapour and carbon dioxide exchange in leaves. Planta (Berl.) 88, 187–191 (1969).
Hesketh, J. D.: Enhancement of photosynthetic CO2-assimilation in the absence of oxygen, as affected by species and temperature. Planta (Berl.) 76, 371–374 (1967).
Hofstra, G., Hesketh, J. D.: Effects of temperature on the gas exchange of leaves in the light and dark. Planta (Berl.) 85, 228–237 (1969).
Holmgren, P.: Leaf factors affecting light-saturated photosynthesis in ecotypes of Solidago virgaurea from exposed and shaded habitats. Physiol. Plantarum (Cph.) 21, 676–698 (1968).
Lake, J. V.: Respiration of leaves during photosynthesis. II. Effects on the estimation of mesophyll resistance. Aust. J. biol. Sci. 20, 495–499 (1967).
Ludlow, M. M., Jarvis, P. G.: Methods of measuring photorespiration rates of leaves. Plant photosynthetic production, a manual of methods (Z. Sestak, J. Catsky and P. G. Jarvis, eds.). The Hague: Dr. W. Junk 1970 (in press).
Meyer, B. S., Anderson, D. B., Böhning, R. H.: Introduction to plant physiology, p. 38. New Jersey: D. van Nostrand 1960.
Monteith, J. L.: Gas exchange on plant communities. Environmental control of plant growth (L. T. Evans, ed.), p. 95–112. New York-London: Academic Press 1963.
Ozbun, J. L., Volk, R. J., Jackson, W. A.: Effect of potassium deficiency on photosynthesis, respiration and the utilization of photosynthetic reductant by immature bean leaves. Pl. Physiol. (Lancaster) 5, 69–75 (1965).
Poskuta, J.: Photosynthesis, photorespiration and respiration of detached spruce twigs as influenced by oxygen concentration and light intensity. Physiol. Plantarum (Cph.) 21, 1129–1136 (1968).
Wilson, G. L., Ludlow, M. M.: Leaf photosynthetic rates of tropical grasses and legumes. XIth Int. Grassld. Congr. Surfers Paradise, Australia. In press (1970).
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Ludlow, M.M. Effect of oxygen concentration on leaf photosynthesis and resistances to carbon dioxide diffusion. Planta 91, 285–290 (1970). https://doi.org/10.1007/BF00387501
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DOI: https://doi.org/10.1007/BF00387501