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Data released on October 05, 2016

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

Alday, J, G; Bahn, M; Castillo, J, D; Devidal, S; Dios, V, D; Ferrio, J, P; García-Muñoz, S; Gessler, A; Kayler, Z; Landais, D; Martín-Gómez, P; Milcu, A; Piel, C; Pirhofer-Walzl, K; Ravel, O; Salekin, S; Tissue, D, T; Tjoelker, M, G; 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 RIS BibTeX Text

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.

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Related manuscripts:

doi:10.1186/s13742-016-0149-y

Keywords:

circadian clock ecological memory net ecosystem exchange scaling stomatal conductance and models photosynthesis transpiration 

Ecology

http://gigadb.org/images/data/cropped/100244.jpg

Funding:

  • Funding body - Agence Nationale de la Recherche
  • Award ID - ANR-11-INBS-0001
  • Funding body - Ministerio de Economía y Competitividad
  • Award ID - RYC-2012-10970
  • Comment - Víctor Resco de Dios
  • Funding body - Ministerio de Economía y Competitividad
  • Award ID - RYC-2008-02050
  • Comment - Juan Pedro Ferrio
  • Funding body - Ministerio de Economía y Competitividad
  • Award ID - AGL2015-69151-R
  • Comment - Víctor Resco de Dios

Samples: Table Settings

Columns:

Common Name
Scienfic Name
Sample Attributes
Taxonomic ID
Genbank Name

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...
...
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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).

Files: (FTP site) Table Settings

Columns:

File Description
Sample ID
File Type
File Format
Size
Release Date
Download Link
File Attributes

File NameSample IDFile TypeFile FormatSizeRelease Date 
tabular dataUNKNOWN864.76 KB2016-09-23
tabular dataUNKNOWN33.62 KB2016-09-23
ReadmeTEXT1.02 KB2016-09-23
Displaying 1-3 of 3 File(s).

History:

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