منابع مشابه
Specific association of photosystem II and light-harvesting complex II in partially solubilized photosystem II membranes.
In this study, we report the structural characterization of photosystem II complexes obtained from partially solubilized photosystem II membranes. Direct observation by electron microscopy, within a few minutes after a mild disruption of the membranes with the detergent n-dodecyl-alpha,D-maltoside, revealed the presence of several large supramolecular complexes. Images of these complexes were s...
متن کاملSupramolecular organization of photosystem II and its light-harvesting antenna in partially solubilized photosystem II membranes.
We present an extended analysis of the organization of green plant photosystem II and its associated light-harvesting antenna using electron microscopy and image analysis. The analysis is based on a large dataset of 16 600 projections of negatively stained PSII-LHCII supercomplexes and megacomplexes prepared by means of three different pretreatments. In addition to our previous work on this sys...
متن کاملMultiscale model of light harvesting by photosystem II in plants.
The first step of photosynthesis in plants is the absorption of sunlight by pigments in the antenna complexes of photosystem II (PSII), followed by transfer of the nascent excitation energy to the reaction centers, where long-term storage as chemical energy is initiated. Quantum mechanical mechanisms must be invoked to explain the transport of excitation within individual antenna. However, it i...
متن کاملSpatial relationship of photosystem I, photosystem II, and the light- harvesting complex in chloroplast membranes
We have previously demonstrated (Armond, P. A., C. J. Arntzen, J.-M. Briantais, and C. Vernotte. 1976. Arch. Biochem. Biophys. 175:54-63; and Davis, D. J., P. A. Armond, E. L. Gross, and C. J. Arntzen. 1976. Arch. Biochem. Biophys. 175:64-70) that pea seedlings which were exposed to intermittent illumination contained incompletely developed chloroplasts. These plastids were photosynthetically c...
متن کاملMultiple types of association of photosystem II and its light-harvesting antenna in partially solubilized photosystem II membranes.
Photosystem II is a multisubunit pigment-protein complex embedded in the thylakoid membranes of chloroplasts. It utilizes light for photochemical energy conversion, and is heavily involved in the regulation of the energy flow. We investigated the structural organization of photosystem II and its associated light-harvesting antenna by electron microscopy, multivariate statistical analysis, and c...
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ژورنال
عنوان ژورنال: Photosynthesis Research
سال: 2013
ISSN: 0166-8595,1573-5079
DOI: 10.1007/s11120-013-9824-3