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. 1969 Jun;63(2):489–495. doi: 10.1073/pnas.63.2.489

ENERGY-LINKED REACTIONS IN PHOTOSYNTHETIC BACTERIA, V. RELATION OF THE LIGHT-INDUCED PROTON UPTAKE TO PHOTOPHOSPHORYLATION IN R. rubrum CHROMATOPHORES*

Donald L Keister 1, Norma Jean Minton 1
PMCID: PMC223590  PMID: 5257139

Abstract

The kinetics of photophosphorylation have been studied in Rhodospirillum rubrum chromatophores. No evidence for a time or intensity lag in photophosphorylation was found. An intensity lag could be induced with the uncoupling agent, m-chlorocarbonyl cyanide phenylhydrazone or, in some cases, by aging of the chromatophores.

In chloroplasts, the occurrence of a time and intensity lag in phosphorylation has been correlated with the formation of a proton gradient and quoted as evidence that a proton gradient is a prerequisite of phosphorylation. The significance of the absence of a time and intensity lag in chromatophores is discussed in this context.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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