Universität zu Köln

Ebenhoeh, Oliver ORCID: 0000-0002-7229-7398, Fucile, Geoffrey, Finazzi, Giovanni, Rochaix, Jean-David and Goldschmidt-Clermont, Michel (2014). Short-term acclimation of the photosynthetic electron transfer chain to changing light: a mathematical model. Philos. Trans. R. Soc. B-Biol. Sci., 369 (1640). LONDON: ROYAL SOC. ISSN 1471-2970

Full text not available from this repository.

Abstract

Photosynthetic eukaryotes house two photosystems with distinct light absorption spectra. Natural fluctuations in light quality and quantity can lead to unbalanced or excess excitation, compromising photosynthetic efficiency and causing photodamage. Consequently, these organisms have acquired several distinct adaptive mechanisms, collectively referred to as non-photochemical quenching (NPQ) of chlorophyll fluorescence, which modulates the organization and function of the photosynthetic apparatus. The ability to monitor NPQ processes fluorometrically has led to substantial progress in elucidating the underlying molecular mechanisms. However, the relative contribution of distinct NPQ mechanisms to variable light conditions in different photosynthetic eukaryotes remains unclear. Here, we present a mathematical model of the dynamic regulation of eukaryotic photosynthesis using ordinary differential equations. We demonstrate that, for Chlamydomonas, our model recapitulates the basic fluorescence features of short-term light acclimation known as state transitions and discuss how the model can be iteratively refined by comparison with physiological experiments to further our understanding of light acclimation in different species.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Ebenhoeh, Oliver UNSPECIFIED orcid.org/0000-0002-7229-7398 UNSPECIFIED Fucile, Geoffrey UNSPECIFIED UNSPECIFIED UNSPECIFIED Finazzi, Giovanni UNSPECIFIED UNSPECIFIED UNSPECIFIED Rochaix, Jean-David UNSPECIFIED UNSPECIFIED UNSPECIFIED Goldschmidt-Clermont, Michel UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-440585
DOI:	10.1098/rstb.2013.0223
Journal or Publication Title:	Philos. Trans. R. Soc. B-Biol. Sci.
Volume:	369
Number:	1640
Date:	2014
Publisher:	ROYAL SOC
Place of Publication:	LONDON
ISSN:	1471-2970
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language HARVESTING COMPLEX-II; DIATOM PHAEODACTYLUM-TRICORNUTUM; CYTOCHROME BF COMPLEX; CHLAMYDOMONAS-REINHARDTII; STATE TRANSITIONS; IN-VIVO; PROTEIN-PHOSPHORYLATION; EXCITATION-ENERGY; PHOTOSYSTEM-I; GREEN PLANTS Multiple languages Biology Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/44058