Change search
ReferencesLink to record
Permanent link

Direct link
Segregation of the photosystems in thylakoids depends on their size
Umeå University, Faculty of Science and Technology, Department of Plant Physiology. Umeå University, Faculty of Science and Technology, Umeå Plant Science Centre (UPSC).
2003 (English)In: Biochimica et Biophysica Acta - Bioenergetics, ISSN 0005-2728, E-ISSN 1879-2650, Vol. 1606, no 1-3, 73-82 p.Article in journal (Refereed) Published
Abstract [en]

Lateral segregation of two types of photosystems in thylakoid membranes of green plants is one of the key factors that provide the stability and fine-tuning of the light quanta supply by pigment proteins and non-cyclic electron transport. Due to this specific feature of the membrane structural organization, the photosynthetic units function in the green plants with optimal performance. In this report a mesoscopic theory is outlined to address the physical aspects of segregation phenomenon. Results of theoretical studies and computer simulations suggest that charge mismatch and the size difference between two photosystems in grana are most responsible for their lateral segregation, which is driven by the screened electrostatic and lipid-induced interactions. Comparative simulations of photosystems of different sizes show the crucial dependence of their ordering on a geometrical parameter. It seems that the size effect alone may prevent photosystems from segregated arrangement in cyanobacterial thylakoids. (C) 2003 Elsevier B.V. All rights reserved.

Place, publisher, year, edition, pages
2003. Vol. 1606, no 1-3, 73-82 p.
Keyword [en]
thylakoid, segregation of photosystem, protein-protein interaction, size-dependent lipid-induced potential, Brownian dynamics, cation-induced phenomenon
URN: urn:nbn:se:umu:diva-44768DOI: 10.1016/S0005-2728(03)00085-9ISI: 000185593100005OAI: diva2:423093
Available from: 2011-06-14 Created: 2011-06-09 Last updated: 2011-06-14

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Oquist, Gunnar
By organisation
Department of Plant PhysiologyUmeå Plant Science Centre (UPSC)
In the same journal
Biochimica et Biophysica Acta - Bioenergetics

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 18 hits
ReferencesLink to record
Permanent link

Direct link