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Title of Journal: Photosynth Res

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Abbravation: Photosynthesis Research

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Springer Netherlands

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DOI

10.1007/bf00784698

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ISSN

1573-5079

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Significance of molecular crowding in grana membra

Authors: Silvia Haferkamp Helmut Kirchhoff
Publish Date: 2007/10/17
Volume: 95, Issue: 2-3, Pages: 129-134
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Abstract

Significance of molecular crowding in grana thylakoids of higher plants on photosystem II function was studied by ‘titrating’ the naturally high protein density by fusing unilamellar liposomes of the native lipid mixture with isolated grana membranes BBY The incorporation of lipids was monitored by equilibrium density gradient centrifugation and twodimensional thin layer chromatography The excitonic coupling between lightharvesting LHC II and photosystem PS II was analysed by chlorophyll a fluorescence spectroscopy The fluorescence parameters Fv/Fm and Fo clearly depend on the protein density indicating the importance of molecular crowding for establishing an efficient excitonic protein network In addition the strong dependency of Fo on the protein density reveals weak interactions between LHCII complexes which could be important for dynamic adjustment of the photosynthetic apparatus in higher plants

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  1. Adaptation of photosystem II to high and low light in wild-type and triazine-resistant Canola plants: analysis by a fluorescence induction algorithm
  2. Structures and functions of the extrinsic proteins of photosystem II from different species
  3. Crassulacean acid metabolism (CAM) in an epiphytic ant-plant, Myrmecodia beccarii Hook.f. (Rubiaceae)
  4. The diversity and complexity of the cyanobacterial thioredoxin systems
  5. Reconstituted CP29: multicomponent fluorescence decay from an optically homogeneous sample
  6. A photoacoustic method for rapid assessment of temperature effects on photosynthesis
  7. Photosynthesis-related quantities for education and modeling
  8. Temperature responses of the Rubisco maximum carboxylase activity across domains of life: phylogenetic signals, trade-offs, and importance for carbon gain
  9. H-transfers in Photosystem II: what can we learn from recent lessons in the enzyme community?
  10. Molecular signatures for the main phyla of photosynthetic bacteria and their subgroups
  11. Optimization of photosynthesis by multiple metabolic pathways involving interorganelle interactions: resource sharing and ROS maintenance as the bases
  12. Production of reactive oxygen species in decoupled, Ca 2+ -depleted PSII and their use in assigning a function to chloride on both sides of PSII
  13. Tracking the molecular evolution of photosynthesis through characterization of atomic contents of the photosynthetic units
  14. What governs the reaction center excitation wavelength of photosystems I and II?
  15. Fluorescence spectroscopy of reconstituted peridinin–chlorophyll–protein complexes
  16. Wide-field photon counting fluorescence lifetime imaging microscopy: application to photosynthesizing systems
  17. Photosynthetic carbon acquisition in Sargassum henslowianum (Fucales, Phaeophyta), with special reference to the comparison between the vegetative and reproductive tissues
  18. Photosynthesis Web resources
  19. Thioredoxin: an unexpected meeting place
  20. Michael Cusanovich: a man of many talents and interests
  21. Phylogeny and taxonomy of Chlorobiaceae
  22. The biological and geological contingencies for the rise of oxygen on Earth
  23. The photoenzymatic cycle of NADPH: protochlorophyllide oxidoreductase in primary bean leaves ( Phaseolus vulgaris ) during the first days of photoperiodic growth
  24. Carbon allocation and element composition in four Chlamydomonas mutants defective in genes related to the CO 2 concentrating mechanism
  25. Comparison of oligomeric states and polypeptide compositions of fucoxanthin chlorophyll a / c -binding protein complexes among various diatom species
  26. Iron–sulfur cluster biosynthesis in photosynthetic organisms
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