Absorption of CO2 in the atmosphere, release of oxygen from the water drunk and the final production of nutrients , all with light energy : photosynthesis is at work in plants.
The absorption of light is made possible thanks to pigments , the most famous is certainly there but also chlorophyll and carotenoids , which unlike the first , absorb much green but not yellow or orange, from where their color and their name taken from the carrot that contains many . These pigments have two main roles : a role of light harvesting has been said , they transfer energy to chlorophyll , but also a photoprotective role they evacuate excess light energy , thereby preserving the process of photosynthesis.
What then is the mechanism at work that drives the plant to protect itself when the sunshine watching ? This is the question that three researchers , two of CRAG , Center for Research in Agrogenomique [ 1] Barcelona and the University of Texas , responded .
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