Results 111 to 120 of about 1,725 (157)
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Uncoupling photophosphorylation by detergents
Biochimica et Biophysica Acta (BBA) - Biophysics including Photosynthesis, 1965Abstract Triton and other detergemts show uncoupling activity for spinach chloroplast photophosphorylation, including stimulation of the basal rate of the Hill reaction, in the range of concentrations from 0.005 to 0.010 %. Slightly higher concentrations inhibit the Hill reactions, and all concentrations are inhibitory if the pH is raised to 7.7 or ...
J, Neumann, A, Jagendorf
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Models for protocellular photophosphorylation
Biosystems, 1981Several photoreactions for transducing light energy have been analyzed for their relevance as models for protocellular photophosphorylation. Inorganic ions and compounds could have played a role in protocellular photophosphorylation. Organic catalysts may have been the next significant agents used by protocells for photophosphorylation.
P R, Bahn, S W, Fox
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Effect of ferredoxin on bacterial photophosphorylation
Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1972Abstract Recently we isolated and characterized two types of ferredoxin from photosynthetically grown Rhodospirillum rubrum cells. Since the ferredoxins were present in a bound form we undertook in this investigation to study the effect of ferredoxin on cyclic photophosphorylation by R.
K T, Shanmugam, D I, Arnon
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Biochimica et Biophysica Acta, 1962
Abstract A new, rapid and sensitive method of determination of the rate and the amount of photophosphorylation with a sensitive recording pH meter is described. Decrease of hydrogen-ion concentration accompanying the phosphorylation of ADP was calculated between pH 7 and 9.
M, NISHIMURA, T, ITO, B, CHANCE
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Abstract A new, rapid and sensitive method of determination of the rate and the amount of photophosphorylation with a sensitive recording pH meter is described. Decrease of hydrogen-ion concentration accompanying the phosphorylation of ADP was calculated between pH 7 and 9.
M, NISHIMURA, T, ITO, B, CHANCE
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Photophosphorylation as a function of light intensity
Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1970Abstract 1. If there is a critical light intensity below which photophosphorylation cannot occur, it is much lower than heretofore reported. At exceedingly low light intensities phosphorylation does not increase in a linear manner with increasing light intensity.
S, Saha, S, Izawa, N E, Good
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[45] Photophosphorylation and reconstitution of photophosphorylation in halobacterial cells
1982Publisher Summary This chapter describes the experimental methods for measurement of ATP levels in Halobacterium halobium cells. Oxidative phosphorylation occurs in the dark on aeration of the cell suspension and photophosphorylation under anaerobic conditions on illumination.
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Synthesis of arabinosyl-ATP by photophosphorylation
Life Sciences, 1971Abstract A simple procedure for high yield synthesis of 9- -arabinofuranosyl triphosphate (ara-ATP) by photophosphorylation, using crude spinach chloroplasts, is reported here. Ara-AMP was synthesized from Ara-A, using cyanoethyl phosphate as phosphorylating agent, and was isolated by column chromatography.
J, Ilan, K, Tokuyasu
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Preservation of photophosphorylation in glycerinated chloroplasts
Biochimica et Biophysica Acta (BBA) - Biophysics including Photosynthesis, 1966Abstract Spinach chloroplasts, when stored in vitro in 50% glycerol at −20° have been found to retain the capacity for cyclic and non-cyclic photophosphorylation for several weeks, whereas this activity is quickly lost in control experiments. A time study made of the decline in light-triggered ATP hydrolysis and photophosphorylation for 3 electron-
L, Packer, A C, Barnard
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Photophosphorylation in chloroplasts
Biochimica et Biophysica Acta (BBA) - Reviews on Bioenergetics, 1978S G, Reeves, D O, Hall
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1977
As shown in the preceding chapters of this volume, the process of photophosphorylation (PP) is defined as light-induced synthesis of ATP from ADP and inorganic phosphate (Pi): $${\rm{ADP + }}{{\rm{P}}_{\rm{i}}}\mathop \to \limits^{hv} {\rm{ATP}}{\rm{.}}$$ (1) PP is confined to the thylakoid systems of green plants and its driving force is a ...
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As shown in the preceding chapters of this volume, the process of photophosphorylation (PP) is defined as light-induced synthesis of ATP from ADP and inorganic phosphate (Pi): $${\rm{ADP + }}{{\rm{P}}_{\rm{i}}}\mathop \to \limits^{hv} {\rm{ATP}}{\rm{.}}$$ (1) PP is confined to the thylakoid systems of green plants and its driving force is a ...
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