. Bacterial photosynthesis. Bacteria -- Physiology; Photosynthesis. REDUCED DYES AND ESR SPECTRA 345 Decoy of the ESR Signal brum Chromatophores. of Light Out - ,Addition of co. SXIO"* M DPIP which was reduced with AA 15 Sec.|<â Fig. 1. Decay of the light-induced ESR signal from R. rubrum chromatophoi-es in the absence and presence of DPIPH2. The upper curve represents the control with ca. 5 X 10-4 M AA and is an average of seven determina- tions. The lower curve represents the decay of the ESR signal after addition of ascorbate-reduced DPIPH2 for a final concentration of 5 x 10-4 m. T
. Bacterial photosynthesis. Bacteria -- Physiology; Photosynthesis. REDUCED DYES AND ESR SPECTRA 345 Decoy of the ESR Signal brum Chromatophores. of Light Out - ,Addition of co. SXIO"* M DPIP which was reduced with AA 15 Sec.|<â Fig. 1. Decay of the light-induced ESR signal from R. rubrum chromatophoi-es in the absence and presence of DPIPH2. The upper curve represents the control with ca. 5 X 10-4 M AA and is an average of seven determina- tions. The lower curve represents the decay of the ESR signal after addition of ascorbate-reduced DPIPH2 for a final concentration of 5 x 10-4 m. The absorbancy at 880 m^ was in both cases. Modulation amplitude 9 gauss. Light ON â 100 Millisec. Light OFF Fig. 2. The averaged curves of formation and decay of the light-induced ESR signal of R. nihniiii chromatophores in the presence of DPIPH2. The sample was at least an order of magnitude greater in chromatophore concentration than that for Fig. 1 and was opaque to light. Data were obtained with a Visicorder oscillograph and at spectrometer settings so that there was no instrumental limitation for time Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Symposium on Bacterial Photosynthesis (1963 : Yellow Springs, Ohio); Charles F. Kettering Research Laboratory (Yellow Springs, Ohio); Gest, Howard. Yellow Springs, Ohio, Antioch Press
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