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Small-angle neutron scattering study of the ultrastructure of chloroplast thylakoid membranes - Periodicity and structural flexibility of the stroma lamellae

Timmins, P.; Posselt, D; Kirkensgaard, Jacob; Nagy, Gergely; Holm, J.K.; Aagaard, Thomas H.; Retfalvi, Eszter; Rosta, Laszlo; Kovacs, Laszlo; Garab, Gyozo


The multilamellar organization of freshly isolated spinach and pea chloroplast thylakoid membranes was studied using small-angle neutron scattering. A broad peak at ∼ 0.02 Å- 1 is ascribed to diffraction from domains of ordered, unappressed stroma lamellae, revealing a repeat distance of 294 Å ± 7 Å in spinach and 345 Å ± 11 Å in pea. The peak position and hence the repeat distance of stroma lamellae is strongly dependent on the osmolarity and the ionic strength of the suspension medium, as...[Show more]

CollectionsANU Research Publications
Date published: 2012
Type: Journal article
Source: Biochimica et Biophysica Acta: Bioenergetics
DOI: 10.1016/j.bbabio.2012.01.012


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