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Scientific article
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Influence of Photosystem II Heterogeneity on the Simulated CHL A Fluorescence Induction Transients

Published inIFAC proceedings volumes, vol. 30, no. 5, p. 21-26
Publication date1997-05
Abstract

The in vivo variable fluorescence of chlorophyll a is used as a non-intrusive probe of the physiological state of intact leaves. It was established that the origin of this signal is the antenna system of photosystem 11 (PSII). The PSII population is heterogeneous in respect to antenna size, connectivity, electron transport activity, and localisation. In this paper we have simulated the effect of these heterogeneities on the fluorescence transient using a mathematical model based on the redox reactions from the acceptor side of PSII. We have concluded that the systems with heterogeneous antenna size and connectivity can be simulated acceptably with a homogeneous population of PSII centres having average values for antenna size and the connectivity constant C. However, this is not possible if there are inactive PSII centres in the system (the so called non-QB active centres). Finally, we have presented some possible applications of these types of simulations

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Citation (ISO format)
STRASSER, Reto, STIRBET, Alexandrina. Influence of Photosystem II Heterogeneity on the Simulated CHL <i>A</i> Fluorescence Induction Transients. In: IFAC proceedings volumes, 1997, vol. 30, n° 5, p. 21–26. doi: 10.1016/S1474-6670(17)44403-X
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ISSN of the journal1474-6670
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