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Correlation of structure and function of chloroplast membranes at the supramolecular level
Author(s) -
Staehelin L. Andrew,
DeWit Marcia
Publication year - 1984
Publication title -
journal of cellular biochemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.028
H-Index - 165
eISSN - 1097-4644
pISSN - 0730-2312
DOI - 10.1002/jcb.240240307
Subject(s) - thylakoid , chloroplast , membrane , stroma , biophysics , cytochrome b6f complex , biology , chloroplast membrane , photosystem i , photosystem ii , chlorophyll , photosystem , chemistry , biochemistry , photosynthesis , botany , immunohistochemistry , gene , immunology
Abstract Freeze‐fracture electron microscopy has revealed that different size classes of intramembrane particles of chloroplast membranes are nonrandomly distributed between appressed grana and nonappressed stroma membrane regions. It is now generally assumed that thylakoid membranes contain five major functional complexes, each of which can give rise to an intramembrane particle of a defined size. These are the photosystem II complex, the photosystem I complex, the cytochrome f/b 6 complex, the chlorophyll a/b light‐harvesting complex, and the CF 0 ‐CF 1 ATP synthetase complex. By mapping the distribution of the different categories of intramembrane particles, information on the lateral organization of functional membrane units of thylakoid membranes can be determined. In this review, we present a brief summary of the evidence supporting the correlation of specific categories of intramembrane particles with known biochemical entities. In addition, we discuss studies showing that ions and phosphorylation of the membrane adhesion factor, the chlorophyll a/b light‐harvesting, complex, can affect the lateral organization of chloroplast membrane components and thereby regulate membrane function.