Circadian rhythms have significant effects on leaf-to-canopy scale gas exchange under field conditions

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2016
Author
Resco de Dios, Víctor
Gessler, Arthur
Ferrio Díaz, Juan Pedro
Alday, Josu G.
Bahn, Michael
Castillo Díaz, Jorge del
Devidal, Sébastien
García Muñoz, Sonia
Kayler, Zachary
Landais, Damien
Martín Gómez, Paula
Milcu, Alexandru
Piel, Clément
Pirhofer Walzl, Karin
Ravel, Olivier
Salekin, Serajis
Tissue, David T.
Tjoelker, Mark G.
Voltas Velasco, Jordi
Roy, Jacques
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Abstract
Molecular clocks drive oscillations in leaf photosynthesis, stomatal conductance, and other cell and leaf-level processes over ~24 h under controlled laboratory conditions. The influence of such circadian regulation over whole-canopy fluxes remains uncertain; diurnal CO2 and H2O vapor flux dynamics
in the field are currently interpreted as resulting almost exclusively from direct physiological responses to variations in light, temperature and other environmental factors. We tested whether circadian regulation would affect plant and canopy gas exchange at the Montpellier European Ecotron. Canopy and leaf-level fluxes were constantly monitored under field-like environmental conditions, and under constant environmental conditions (no variation in temperature, radiation, or other environmental cues).
URI
http://hdl.handle.net/10459.1/58828
DOI
https://doi.org/10.1186/s13742-016-0149-y
Is part of
GigaScience, 2016, vol. 16, núm.43
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cc-by (c) Resco de Dios et al., 2016
Except where otherwise noted, this item's license is described as cc-by (c) Resco de Dios et al., 2016