| Transcellular delta -mu H+ in Valonia ventricosa and its effect on delayed fluorescence. | |
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MedLine Citation:
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PMID: 3666429 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The possible effect of the illumination-induced transcellular H+-gradient between the central vacuole and the external medium, on both the intensity and the kinetics of delayed fluorescence was studied by measuring both the membrane potentials and H+ fluxes across the plasmatic membranes, and the millisecond component of delayed fluorescence in single cells of the marine alga Valonia ventricosa. The kinetics of the formation of transcellular delta -mu H+ was shown to correlate with the induction kinetics of the millisecond component of delayed fluorescence. Disturbances of transcellular delta -mu H+ by electrical breakdown of the cell or by acidification of the external medium resulted in a decrease of the steady-state level of the light emission and in a decline of the minute oscillations observed in intact cells. The possible involvement of the membrane connections between the chloroplasts and the plasmatic membranes in the formation of transcellular delta-mu H+ is discussed. |
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Authors:
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M Gyenes |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: General physiology and biophysics Volume: 6 ISSN: 0231-5882 ISO Abbreviation: Gen. Physiol. Biophys. Publication Date: 1987 Aug |
Date Detail:
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Created Date: 1987-12-14 Completed Date: 1987-12-14 Revised Date: 2000-12-18 |
Medline Journal Info:
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Nlm Unique ID: 8400604 Medline TA: Gen Physiol Biophys Country: CZECHOSLOVAKIA |
Other Details:
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Languages: eng Pagination: 369-81 Citation Subset: IM |
Affiliation:
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Department of Biophysics, Faculty of Biology, Moscow State University, USSR. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Algae, Green
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physiology* Cell Membrane / physiology, ultrastructure Chloroplasts / physiology, ultrastructure Fluorescence Hydrogen-Ion Concentration Intracellular Membranes / physiology, ultrastructure Kinetics Membrane Potentials Microelectrodes Microscopy, Electron Vacuoles / physiology, ultrastructure |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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