Dynamic coupling of photoacclimation and photoinhibition in a model of microalgae growth

Abstract : The development of mathematical models that can predict photosynthetic productivity of microalgae under transient conditions is crucial for enhancing large-scale industrial culturing systems. Particularly important in outdoor culture systems, where the light irradiance varies greatly, are the processes of photoinhibition and photoacclimation, which can affect photoproduction significantly. The former is caused by an excess of light and occurs on a fast time scale of minutes, whereas the latter results from the adjustment of the light harvesting capacity to the incoming irradiance and takes place on a slow time scale of days. In this paper, we develop a dynamic model of microalgae growth that simultaneously accounts for the processes of photoinhibition and photoacclimation, thereby spanning multiple time scales. The properties of the model are analyzed in connection to PI-response curves, under a quasi steady-state assumption for the slow processes and by neglecting the fast dynamics. For validation purposes, the model is calibrated and compared against multiple experimental data sets from the literature for several species. The results show that the model can describe the difference in photosynthetic unit acclimation strategies between Dunaliella tertiolecta (n-strategy) and Skeletonema costatum (s-strategy).
Type de document :
Article dans une revue
Journal of Theoretical Biology, Elsevier, 2016, 390, pp.61 - 72. 〈10.1016/j.jtbi.2015.11.004〉
Liste complète des métadonnées

https://hal.inria.fr/hal-01247049
Contributeur : Jean-Luc Gouzé <>
Soumis le : lundi 21 décembre 2015 - 09:43:58
Dernière modification le : vendredi 12 janvier 2018 - 01:48:35

Identifiants

Collections

Citation

Andreas Nikolaou, Philipp Hartmann, Antoine Sciandra, Benoît Chachuat, Olivier Bernard. Dynamic coupling of photoacclimation and photoinhibition in a model of microalgae growth. Journal of Theoretical Biology, Elsevier, 2016, 390, pp.61 - 72. 〈10.1016/j.jtbi.2015.11.004〉. 〈hal-01247049〉

Partager

Métriques

Consultations de la notice

422