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

Dataset type: Ecology
Data released on October 05, 2016

Dios Vd; Gessler A; Ferrio JP; Alday JG; Bahn M; Castillo Jd; Devidal S; García-Muñoz S; Kayler Z; Landais D; Martín-Gómez P; Milcu A; Piel C; Pirhofer-Walzl K; Ravel O; Salekin S; Tissue DT; Tjoelker MG; Voltas J; Roy J (2016): Supporting data for "Circadian rhythms have significant effects on leaf-to-canopy scale gas exchange under field conditions" GigaScience Database. http://dx.doi.org/10.5524/100244

DOI10.5524/100244

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 and 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 CNRS 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).
We show direct experimental evidence at canopy scales of circadian regulation of daytime gas exchange: 20-79% of the daily variation range in CO2 and H2O fluxes occurred under circadian entrainment in canopies of an annual herb (bean) and of a perennial shrub (cotton). We also observed that considering circadian regulation improved performance by 8-17% in commonly used stomatal conductance models.
Our results show that circadian controls affect diurnal patterns of CO2 and H2O fluxes in entire canopies in field-like conditions and its consideration significantly improves model performance. Circadian controls act as a “memory” of the past conditions experienced by the plant that synchronizes metabolism across entire plant canopies.

Additional details

Read the peer-reviewed publication(s):

Resco de Dios, V., Gessler, A., Ferrio, J. P., Alday, J. G., Bahn, M., del Castillo, J., … Roy, J. (2016). Circadian rhythms have significant effects on leaf-to-canopy scale gas exchange under field conditions. GigaScience, 5(1). doi:10.1186/s13742-016-0149-y





Sample IDTaxonomic IDCommon NameGenbank NameScientific NameSample Attributes
mac13635American cottonupland cottonGossypium hirsutum Description:macrocosm 1, growing 59 cotton plants ...
Geographic location (latitude and longitude):43.68...
Geographic location (country and/or sea,region):Fr...
...
+
mac103885French bean Phaseolus vulgaris Description:macrocosm growing 67 bean plants in a ...
Geographic location (latitude and longitude):43.68...
Geographic location (country and/or sea,region):Fr...
...
+
mac113635American cottonupland cottonGossypium hirsutum Description:macrocosm growing 63 cotton plants in ...
Geographic location (latitude and longitude):43.68...
Geographic location (country and/or sea,region):Fr...
...
+
mac123885French bean Phaseolus vulgaris Description:macrocosm growing 97 bean plants in a ...
Geographic location (latitude and longitude):43.68...
Geographic location (country and/or sea,region):Fr...
...
+
mac23885French bean Phaseolus vulgaris Description:macrocosm growing 96 bean plants in a ...
Geographic location (latitude and longitude):43.68...
Geographic location (country and/or sea,region):Fr...
...
+
mac33635American cottonupland cottonGossypium hirsutum Description:macrocosm growing 61 cotton plants in ...
Geographic location (latitude and longitude):43.68...
Geographic location (country and/or sea,region):Fr...
...
+
mac43885French bean Phaseolus vulgaris Description:macrocosm growing 98 bean plants in a ...
Geographic location (latitude and longitude):43.68...
Geographic location (country and/or sea,region):Fr...
...
+
mac53635American cottonupland cottonGossypium hirsutum Description:macrocosm growing 57 cotton plants in ...
Geographic location (latitude and longitude):43.68...
Geographic location (country and/or sea,region):Fr...
...
+
mac63885French bean Phaseolus vulgaris Description:macrocosm growing 98 bean plants in a ...
Geographic location (latitude and longitude):43.68...
Geographic location (country and/or sea,region):Fr...
...
+
mac73635American cottonupland cottonGossypium hirsutum Description:macrocosm growing 59 cotton plants in ...
Geographic location (latitude and longitude):43.68...
Geographic location (country and/or sea,region):Fr...
...
+
Displaying 1-10 of 12 Sample(s).




Displaying 1-3 of 3 File(s).
Funding body Awardee Award ID Comments
Agence Nationale de la Recherche ANR-11-INBS-0001
Ministerio de Economía y Competitividad RYC-2012-10970 Víctor Resco de Dios
Ministerio de Economía y Competitividad RYC-2008-02050 Juan Pedro Ferrio
Ministerio de Economía y Competitividad AGL2015-69151-R Víctor Resco de Dios
Date Action
October 25, 2016 Manuscript Link added : 10.1186/s13742-016-0149-y
October 5, 2016 Dataset publish