Parameters of photosynthetic energy partitioning

Bibliographische Detailangaben
Veröffentlicht in:	Journal of plant physiology. - 1979. - 175(2015) vom: 01. März, Seite 131-47
1. Verfasser:	Lazár, Dušan (VerfasserIn)
Format:	Online-Aufsatz
Sprache:	English
Veröffentlicht:	2015
Zugriff auf das übergeordnete Werk:	Journal of plant physiology
Schlagworte:	Journal Article Research Support, Non-U.S. Gov't Review Chlorophyll fluorescence Non-photochemical Photochemical Photosynthesis Quantum yield Photosystem II Protein Complex Chlorophyll 1406-65-1

Beschreibung
Zusammenfassung:	Copyright © 2014 Elsevier GmbH. All rights reserved. Almost every laboratory dealing with plant physiology, photosynthesis research, remote sensing, and plant phenotyping possesses a fluorometer to measure a kind of chlorophyll (Chl) fluorescence induction (FLI). When the slow Chl FLI is measured with addition of saturating pulses and far-red illumination, the so-called quenching analysis followed by the so-called relaxation analysis in darkness can be realized. These measurements then serve for evaluation of the so-called energy partitioning, that is, calculation of quantum yields of photochemical and of different types of non-photochemical processes. Several theories have been suggested for photosynthetic energy partitioning. The current work aims to summarize all the existing theories, namely their equations for the quantum yields, their meaning and their assumptions. In the framework of these theories it is also found here that the well-known NPQ parameter ( [Formula: see text] ; Bilger and Björkman, 1990) equals the ratio of the quantum yield of regulatory light-induced non-photochemical quenching to the quantum yield of constitutive non-regulatory non-photochemical quenching (ΦNPQ/Φf,D). A similar relationship is also found here for the PQ parameter (ΦP/Φf,D)
Beschreibung:	Date Completed 23.02.2016 Date Revised 30.09.2020 published: Print-Electronic Citation Status MEDLINE
ISSN:	1618-1328
DOI:	10.1016/j.jplph.2014.10.021