scholarly journals Induction of Efficient Energy Dissipation in the Isolated Light-harvesting Complex of Photosystem II in the Absence of Protein Aggregation

2008 ◽  
Vol 283 (43) ◽  
pp. 29505-29512 ◽  
Author(s):  
Cristian Ilioaia ◽  
Matthew P. Johnson ◽  
Peter Horton ◽  
Alexander V. Ruban
Keyword(s):  
Energy Dissipation ◽  
Photosystem Ii ◽  
Protein Aggregation ◽  
Light Harvesting ◽  
Light Harvesting Complex ◽  
Efficient Energy

scholarly journals Singlet Energy Dissipation in the Photosystem II Light-Harvesting Complex Does Not Involve Energy Transfer to Carotenoids

ChemPhysChem ◽  
2010 ◽  
Vol 11 (6) ◽  
pp. 1289-1296 ◽  
Author(s):  
Marc G. Müller ◽  
Petar Lambrev ◽  
Michael Reus ◽  
Emilie Wientjes ◽  
Roberta Croce ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Energy Dissipation ◽  
Photosystem Ii ◽  
Light Harvesting ◽  
Light Harvesting Complex

scholarly journals Energy dissipation mechanisms in the FCPb light-harvesting complex of the diatom Cyclotella meneghiniana

2018 ◽  
Vol 1859 (10) ◽  
pp. 1151-1160 ◽  
Author(s):  
Huzifa M.A.M. Elnour ◽  
Lars Dietzel ◽  
Charusheela Ramanan ◽  
Claudia Büchel ◽  
Rienk van Grondelle ◽  
...  
Keyword(s):  
Energy Dissipation ◽  
Light Harvesting ◽  
Light Harvesting Complex ◽  
Cyclotella Meneghiniana

scholarly journals Light-Harvesting Complex Stress-Related Proteins Catalyze Excess Energy Dissipation in Both Photosystems of Physcomitrella patens

2015 ◽  
Vol 27 (11) ◽  
pp. 3213-3227 ◽  
Author(s):  
Alberta Pinnola ◽  
Stefano Cazzaniga ◽  
Alessandro Alboresi ◽  
Reinat Nevo ◽  
Smadar Levin-Zaidman ◽  
...  
Keyword(s):  
Energy Dissipation ◽  
Physcomitrella Patens ◽  
Light Harvesting ◽  
Complex Stress ◽  
Excess Energy ◽  
Light Harvesting Complex ◽  
Related Proteins

Photosensitization of triplet carotenoid in photosynthetic light-harvesting complex of photosystem II

1988 ◽  
Vol 92 (5) ◽  
pp. 1165-1168 ◽  
Author(s):  
R. Nechushtai ◽  
J. P. Thornber ◽  
L. K. Patterson ◽  
R. W. Fessenden ◽  
H. Levanon
Keyword(s):  
Photosystem Ii ◽  
Light Harvesting ◽  
Light Harvesting Complex

scholarly journals Spatial relationship of photosystem I, photosystem II, and the light-harvesting complex in chloroplast membranes.

1977 ◽  
Vol 73 (2) ◽  
pp. 400-418 ◽  
Author(s):  
P A Armond ◽  
L A Staehelin ◽  
C J Arntzen
Keyword(s):  
Particle Size ◽  
Photosystem Ii ◽  
Photosystem I ◽  
Light Harvesting ◽  
Particle Density ◽  
Unit Size ◽  
Fracture Face ◽  
Photosynthetic Unit ◽  
Light Harvesting Complex ◽  
Chloroplast Membrane

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 competent, but did not contain grana. We now demonstrate that the incompletely developed plastids have a smaller photosynthetic unit size; this is primarily due to the absence of a major light-harvesting pigment-protein complex which is present in the mature membranes. Upon exposure of intermittent-light seedlings to continuous white light for periods up to 48 h, a ligh-harvesting chlorophyll-protein complex was inserted into the chloroplast membrane with a concomitant appearance of grana stacks and an increase in photosynthetic unit size. Plastid membranes from plants grown under intermediate light were examined by freeze-fracture electron microscopy. The membrane particles on both the outer (PF) and inner (EF) leaflets of the thylakoid membrane were found to be randomly distributed. The particle density of the PF fracture face was approx. four times that of the EF fracture face. While only small changes in particle density were observed during the greening process under continuous light, major changes in particle size were noted, particularly in the EF particles of stacked regions (EFs) of the chloroplast membrane. Both the changes in particle size and an observed aggregation of the EF particles into the newly stacked regions of the membrane were correlated with the insertion of light-harvesting pigment-protein into the membrane. Evidence is presented for identification of the EF particles as the morphological equivalent of a "complete" photosystem II complex, consisting of a phosochemically active "core" complex surrounded by discrete aggregates of the light-harvesting pigment protein. A model demonstrating the spatial relationships of photosystem I, photosystem II, and the light-harvesting complex in the chloroplast membrane is presented.

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