CIRCAFLUX
2013Goals
To test the impact of the circadian cycle of two types of plants (Beans and Cotton) on the regulation of their stomatal conductance and on their gas exchanges.
number of rooms used
- 12
Project duration
- 3 months
A new experiment on circadian rhythms
Researchers
Arthur Gessler ; Jacques Roy ; Zachary Kayler ; Juan Pedro Ferrio ; Josu Alday ; Michael Bahn ; Jorge del Castillo ; Víctor Resco de Dios ; Sébastien Devidal ; Sonia García-Muñoz ; Damien Landais ; Paula Martín-Gómez ; Alexandru Milcu ; Clément Piel ; Karin Pirhofer-Walzl ; Serajis Salekin ; David Tissue ; Mark Tjoelker ; Jordi Voltas ; William RL Anderegg
Informations
University of Lleida – University of Utah – Hawkesbury Institute for the Environment Western Sydney – Department of Ecology, University of Innsbruck – Ecotron – CEFE – Forest Dynamics, Swiss Federal Institute for Forest, Snow and Landscape Research
Publications
- Circadian regulation of night-time dark respiration and light-enhanced dark respiration in plant leaves and canopies. Journal : Environmental and Experimental Botany Référence : LIRE…
- Circadian rhythms regulate the environmental responses of net CO2 exchange in bean and cotton canopies. Journal : Agricultural and Forest Meteorology Référence : LIRE…
- Circadian rhythms have significant effects on leaf-to-canopy scale gas exchange under field conditions. Journal : GigaScience Référence : LIRE…
Context
Treatments
Each phase has 2 sub-phases : a first one for the study of the circadian rhythm in constant light and a second one for the study of the circadian rhythm in constant darkness. The study of the circadian rhythm consists in the comparison of the physiology under varying daytime conditions and under constant conditions. The variable conditions are controlled (made with artificial lamps to have similar conditions regardless of the outdoor weather and to have a maximum light level equal to the constant light level that will be imposed by the lamps).
A phase lasts two weeks with the following sequence of activities each day.