Architecture of the Photosynthetic Oxygen-Evolving Center
The data strongly suggest that the OEC contains a cubane-like Mn3CaO4 cluster linked to a fourth Mn by a mono-μ-oxo bridge, and the details of the surrounding coordination sphere of the metal cluster and the implications for a possible oxygen-evolving mechanism are discussed.
The red edge of plant leaf reflectance
Abstract The red edge is the sharp change in leaf reflectance between 680 and 750 nm and has been measured on leaves of a variety of species by first derivative reflectance spectrophotometry. A…
Too much of a good thing: light can be bad for photosynthesis.
Comparing Photosynthetic and Photovoltaic Efficiencies and Recognizing the Potential for Improvement
Natural photosynthesis is compared with present technologies for photovoltaic-driven electrolysis of water to produce hydrogen and opportunities in which the frontiers of synthetic biology might be used to enhance natural photosynthesis for improved solar energy conversion efficiency are considered.
Iron deficiency induces the formation of an antenna ring around trimeric photosystem I in cyanobacteria
The utilization of a PSII-like protein as an extra antenna for PSI emphasises the flexibility of cyanobacterial light-harvesting systems, and seems to be a strategy which compensates for the lowering of phycobilisome and PSI levels in response to iron deficiency.
Supramolecular structure of the photosystem II complex from green plants and cyanobacteria.
- E. Boekema, B. Hankamer, M. Rögner
- Chemistry, PhysicsProceedings of the National Academy of Sciences…
- 3 January 1995
Photosystem II (PSII) complexes, isolated from spinach and the thermophilic cyanobacterium Synechococcus elongatus, were characterized by electron microscopy and single-particle image-averaging analyses and suggested that PSII may exist as a dimer in vivo.
Analysis of the Structure of the PsbO Protein and its Implications
This work identifies the most conserved regions of PsbO and the mapping of their positions within the structure indicates their functional roles especially in relation to interactions of this protein with the lumenal surface of PS II.
3D map of the plant photosystem II supercomplex obtained by cryoelectron microscopy and single particle analysis
- J. Nield, E. Orlova, E. Morris, B. Gowen, M. Heel, J. Barber
- Biology, ChemistryNature Structural Biology
The first 3D structure of the photosystem II (PSII) supercomplex of higher plants, constructed by single particle analysis of images obtained by cryoelectron microscopy is described, representing a significant step forward in revealing the structure ofThe photosynthetic OEC whose activity is required to sustain the aerobic atmosphere on the authors' planet.
Photosynthetic energy conversion: natural and artificial.
- J. Barber
- ChemistryChemical Society Reviews
Photosystem II (PSII) is the water splitting enzyme of photosynthesis. Its appearance during evolution dramatically changed the chemical composition of our planet and set in motion an unprecedented…
Influence of Surface Charges on Thylakoid Structure and Function
- J. Barber
- Medicine, Chemistry
- 1 June 1982
This paper presents a meta-analysis of 9-Amino Acridine technique and its applications in particle electrophoresis and concludes that the technique can be applied to surface charge determination as well as other determinants of surface attraction.