Literature DB >> 2878

[Biophysical primary processes in photosynthetic membranes. Data with pulse-spectroscopical methods].

H T Witt.   

Abstract

The electron transfer in the photosynthetic membrane of green plants from H2O to NADP+ is driven by two chlorophyll reaction centers in series. The electron transfer converts one part of the light energy into the form of the reducing power of NADPH. The transfer initiates an electrical field across the membrane. The electrical energy of the charged membrane is an additional state into which light energy is converted. Protolytic reactions coupled with the electron transfer lead to a proton translocation into the inner space of the thylakoid. The discharging of the ectrically energized membrane by H+ efflux is coupled with the formation of ATP.

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Year:  1976        PMID: 2878     DOI: 10.1007/BF00768677

Source DB:  PubMed          Journal:  Naturwissenschaften        ISSN: 0028-1042


  36 in total

1.  Direct determination of DeltapH in chloroplasts, and its relation to the mechanisms of photoinduced reactions.

Authors:  H Rottenberg; T Grunwald; M Avron
Journal:  FEBS Lett       Date:  1971-02-12       Impact factor: 4.124

2.  Oxidized cytochrome and chlorophyll C2-plus in photosynthesis.

Authors:  H T WITT; A MUELLER; B RUMBERG
Journal:  Nature       Date:  1961-12-09       Impact factor: 49.962

3.  Further evidcence for an optical response of chloroplast bulk pigments to a light induced electrical field in photosynthesis.

Authors:  H M Emrich; W Junge; H T Witt
Journal:  Z Naturforsch B       Date:  1969-09       Impact factor: 1.047

4.  Rise time of the absorption changes of chlorophyll-a I and carotenoids in photosynthesis.

Authors:  K Witt; C Wolff
Journal:  Z Naturforsch B       Date:  1970-04       Impact factor: 1.047

5.  Direct observation of a light-induced electric field in chloroplasts.

Authors:  C F Fowler; B Kok
Journal:  Biochim Biophys Acta       Date:  1974-08-23

6.  Correlation between plastoquinone reduction, field formation and proton translocation in photosynthesis.

Authors:  E Reinwald; H H Stiehl; B Rumberg
Journal:  Z Naturforsch B       Date:  1968-12       Impact factor: 1.047

7.  Proton evolution associated with the photooxidation of water in photosynthesis.

Authors:  C F Fowler; B Kok
Journal:  Biochim Biophys Acta       Date:  1974-08-23

8.  On the analysis of photosynthesis by flashlight techniques.

Authors:  H T Witt; B Rumberg; P Schmidt-Mende; U Siggel; B Skerra; J Vater; J Weikard
Journal:  Angew Chem Int Ed Engl       Date:  1965-10       Impact factor: 15.336

9.  Intermediates and kinetics in the water splitting part of photosynthesis.

Authors:  J Vater; G Renger; H H Stiehl; H T Witt
Journal:  Naturwissenschaften       Date:  1968-05

Review 10.  Coupling of quanta, electrons, fields, ions and phosphrylation in the functional membrane of photosynthesis. Results by pulse spectroscopic methods.

Authors:  H T Witt
Journal:  Q Rev Biophys       Date:  1971-11       Impact factor: 5.318

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