Kinetics of structural reorganizations in multilamellar photosynthetic membranes monitored by small-angle neutron scattering

We demonstrate the power of time-resolved small-angle neutron scattering experiments for the investigation of the structure and structural reorganizations of multilamellar photosynthetic membranes. In addition to briefly summarizing our results on thylakoid membranes isolated from higher plants and...

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Bibliographic Details
Published in:The European physical journal. E, Soft matter and biological physics Soft matter and biological physics, 2013-07, Vol.36 (7), p.69-69, Article 69
Main Authors: Nagy, Gergely, Kovács, László, Ünnep, Renáta, Zsiros, Ottó, Almásy, László, Rosta, László, Timmins, Peter, Peters, Judith, Posselt, Dorthe, Garab, Győző
Format: Article
Language:English
Subjects:
Biochemistry, Molecular Biology
Biological and Medical Physics
Biophysics
Complex Fluids and Microfluidics
Complex Systems
Intracellular Membranes
Intracellular Membranes - chemistry
Intracellular Membranes - ultrastructure
Kinetics
Life Sciences
Nanotechnology
Neutron Biological Physics
Neutron Diffraction
Physics
Physics and Astronomy
Polymer Sciences
Regular Article
Scattering, Small Angle
Soft and Granular Matter
Spinacia oleracea
Spinacia oleracea - chemistry
Spinacia oleracea - cytology
Structural Biology
Surfaces and Interfaces
Thin Films
Thylakoids
Thylakoids - chemistry
Thylakoids - ultrastructure
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Summary:We demonstrate the power of time-resolved small-angle neutron scattering experiments for the investigation of the structure and structural reorganizations of multilamellar photosynthetic membranes. In addition to briefly summarizing our results on thylakoid membranes isolated from higher plants and in unicellular organisms, we discuss the advantages and technical and methodological limitations of time-resolved SANS. We present a detailed and more systematical investigation of the kinetics of light-induced structural reorganizations in isolated spinach thylakoid membranes, which show how changes in the repeat distance and in the long-range order of the multilamellar membranes can be followed with a time resolution of seconds. We also present data from comparative measurements performed on thylakoid membranes isolated from tobacco. Graphical abstract
ISSN:1292-8941
1292-895X
DOI:10.1140/epje/i2013-13069-0