Differential response of aspen and birch trees to heat stress under elevated carbon dioxide

• Published in: Environmental pollution (1987) Vol. 158; no. 4; pp. 1008 - 1014
• Main Authors: Darbah, Joseph N.T., Sharkey, Thomas D., Calfapietra, Carlo, Karnosky, David F.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Kidlington Elsevier Ltd 01.04.2010; Elsevier
• Subjects: air pollution; air temperature; Animal, plant and microbial ecology; Applied ecology; Aspen; Betula - drug effects; Betula - metabolism; Betula papyrifera; Biological and medical sciences; Birch; carbon dioxide; Carbon Dioxide - metabolism; Ecotoxicology, biological effects of pollution; electron transfer; elevated atmospheric gases; forest trees; Free air carbon dioxide Enrichment; Fundamental and applied biological sciences. Psychology; gas exchange; General aspects; Global Warming; heat stress; heat tolerance; Hot Temperature; Isoprene; Photosynthesis; Photosynthesis - drug effects; Plant Transpiration - drug effects; Populus - drug effects; Populus - metabolism; Populus tremuloides; stomatal conductance; Stomatal conductance, thermotolerance; Stress, Physiological - drug effects; Free air carbon dioxide Enrichment; Birch; Photosynthesis; Stomatal conductance, thermotolerance; Aspen; Isoprene; Temperature; Carbon compound; Stomatal conductance; Carbon dioxide; Environmental factor; Woody plant; Stress; Salicaceae; Heat; Pollution; thermotolerance; Dicotyledones; Angiospermae; Tree; Environment; Spermatophyta; Populus; Betula; Betulaceae

The effect of high temperature on photosynthesis of isoprene-emitting (aspen) and non-isoprene-emitting (birch) trees were measured under elevated CO 2 and ambient conditions. Aspen trees tolerated heat better than birch trees and elevated CO 2 protected photosynthesis of both species against modera...