๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

The involvement of Ca2+in the Ca2+-effect on Photosystem-II oxygen evolution

โœ Scribed by Alain Boussac; A. William Rutherford


Publisher
Springer
Year
1992
Tongue
English
Weight
264 KB
Volume
32
Category
Article
ISSN
0166-8595

No coin nor oath required. For personal study only.

โœฆ Synopsis


A number of recent reports have concluded that Ca 2+ is not released by treatments which are usually thought to induce the depletion of Ca 2+. Consequently, it was proposed that the Ca 2+ demand was not related to a specific r61e for Ca 2รท in Photosystem-II oxygen evolution. In this letter, we scrutinize the data behind these conclusions and argue that, based on these data, it is premature to question the view that intrinsic Ca z+ is actually being released.


๐Ÿ“œ SIMILAR VOLUMES


Primary photochemistry and energetics le
โœ Fabrice Rappaport; Bruce A. Diner ๐Ÿ“‚ Article ๐Ÿ“… 2008 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 431 KB

The recent availability of X-ray crystallographic structures of Photosystem II (PSII) together with refined steady-state and time-resolved spectroscopic analyses of site-directed mutants, are leading to a more detailed understanding of the function of this photosystem. Recent data have significantly

The effects of Ca2+ on lipid diffusion
โœ Edward Blatt; Winchil L.C. Vaz ๐Ÿ“‚ Article ๐Ÿ“… 1986 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 585 KB
Kinetic factors in the bicycle model of
โœ Vladimir P. Shinkarev; Colin A. Wraight ๐Ÿ“‚ Article ๐Ÿ“… 1993 ๐Ÿ› Springer ๐ŸŒ English โš– 568 KB

Flash-induced oxygen evolution and many related processes in thylakoids of oxygenic organisms are modulated with period four by the S-state transitions associated with the oxygen evolving system of Photosystem II (PS II). To analyze these phenomena, we have interpreted the S-state model on the basis

Chemical oxidation and reduction of the
โœ Chao Lin; Gary W. Brudvig ๐Ÿ“‚ Article ๐Ÿ“… 1993 ๐Ÿ› Springer ๐ŸŒ English โš– 758 KB

Treatment of Photosystem II (PS II) with low concentrations of hydroxylamine is known to cause a two-flash delay in the O2-evolution pattern, and in the formation of the S2-state multiline EPR signal, due to the two-electron reduction of the S1-state by hydroxylamine to form the S-1-state. Past work