Skip to Main content Skip to Navigation
Theses

Structure et dynamique des membranes photosynthétique relevé par diffusion de neutrons

Abstract : One of the most important scientific challenges of our time is to find answers and solutions for the various questions and problems about the energy consumption of humanity. Scientific studies on the utilization of renewable resources, especially of solar energy, gain more and more importance. In the Biosphere, solar energy conversion to chemical energy is performed by photosynthetic organisms. Photosynthesis, especially its different regulatory mechanisms is far from being understood. Thylakoid membranes possess a central role in photosynthesis. In the present thesis we investigate structural parameters of the thylakoid membranes, isolated from higher plants and in different algal cells, with small-angle neutron scattering, and the dynamics of isolated thylakoid membrane fragments with elastic incoherent neutron scattering. The presented results, in addition to providing clear evidence for the occurrence of small but well discernible membrane reorganizations in thylakoid membranes during photosynthesis, and for a transition in BBY membranes at physiological temperatures, also present example of possible application of neutron scattering for the investigation of in vivo biological samples.
Document type :
Theses
Complete list of metadata

Cited literature [161 references]  Display  Hide  Download

https://tel.archives-ouvertes.fr/tel-00680104
Contributor : ABES STAR :  Contact
Submitted on : Saturday, March 17, 2012 - 4:32:33 PM
Last modification on : Wednesday, June 8, 2022 - 4:14:03 PM
Long-term archiving on: : Monday, June 18, 2012 - 5:20:09 PM

File

PhD_Thesis_Gergely_Nagy.pdf
Version validated by the jury (STAR)

Identifiers

  • HAL Id : tel-00680104, version 1

Collections

Citation

Gergely Nagy. Structure et dynamique des membranes photosynthétique relevé par diffusion de neutrons. Physique [physics]. Université de Grenoble; Laboratoire de chimie nucléaire. Institut de chimie, Université de Eötvös Loránd (Budapest, Hongrie), 2011. Français. ⟨NNT : 2011GRENY067⟩. ⟨tel-00680104⟩

Share

Metrics

Record views

205

Files downloads

621