Methodology

The methodological concept behind PHOTOFLUX lies in the combined fields of applied plant physiology, biophysics, biochemistry, and remote sensing techniques. PHOTOFLUX is pursuing a physically-based modelling approach to quantify the energy partitioning of the absorbed photosynthetically active radiation from leaf to canopy scale.
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Understanding dynamic (non-) photosynthetic absorption behaviour.

Carotenoids, and the xanthophylls violaxanthin-antheraxanthin-zeaxanthin (VAZ) in particular, regulate the energy flow towards the photosynthetic reaction centers in a versatile way.  In vivo leaf spectroscopy provides the possibility to study absorbance changes of photosynthetic active radiation and improve the understanding of the modulated switch between energy harvesting and energy dissipation.

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More info: Van Wittenberghe S. et al. (2021) BBA-Bioenergetics 1862, 148351. (go)