Control of the light‐harvesting function of chloroplast membranes by aggregation of the LHCII chlorophyll—protein complex
Open Access
- 4 November 1991
- journal article
- Published by Wiley in FEBS Letters
- Vol. 292 (1-2) , 1-4
- https://doi.org/10.1016/0014-5793(91)80819-o
Abstract
A new hypothesis is presented to explain the major molecular process that regulates the efficiency of light harvesting by chloroplast membranes. It is proposed that in excess light the decrease in the thylakoid lumen pH causes an increase in aggregation of the light harvesting complexes of photosystem II resulting in formation of an efficient pathway for non‐radiative dissipation of excitation energy. The aggregation is potentiated by the conversion of violaxanthin to zeaxanthin. This hypothesis is based upon (i) similarity between the spectroscopic changes associated with energy dissipation and those observed upon aggregation of isolated light harvesting complex; and (ii) the link between changes in light scattering and increased energy dissipation.Keywords
This publication has 24 references indexed in Scilit:
- Zeolites as catalysts in organic reactions: Condensation of aldehydes with benzene derivativesJournal of Catalysis, 1991
- The relationship between zeaxanthin, energy-dependent quenching of chlorophyll fluorescence, and trans-thylakoid pH gradient in isolated chloroplastsBiochimica et Biophysica Acta (BBA) - Bioenergetics, 1991
- Diurnal Fluctuations in the Content and Functional Properties of the Light Harvesting Chlorophyll a/b Complex in Thylakoid MembranesPlant Physiology, 1991
- The mechanisms of changes in Photosystem II efficiency in spinach thylakoidsBiochimica et Biophysica Acta (BBA) - Bioenergetics, 1990
- Enhancement of the ΔpH‐dependent dissipation of excitation energy in spinach chloroplasts by light‐activation: correlation with the synthesis of zeaxanthinFEBS Letters, 1989
- Reversible changes in macroorganization of the light-harvesting chlorophyll a/b pigment-protein complex detected by circular dichroismBiochemistry, 1988
- A nine-node assumed-strain finite element for composite plates and shellsComputers & Structures, 1987
- Talking about colorColor Research & Application, 1987
- ΔpH‐dependent chlorophyll fluorescence quenching indicating a mechanism of protection against photoinhibition of chloroplastsFEBS Letters, 1986
- The relation of light-induced slow absorbancy and scattering changes about 520 nm and structure of chloroplast thylakoids?A theoretical investigationJournal of Bioenergetics and Biomembranes, 1977