. Bacterial photosynthesis. Bacteria -- Physiology; Photosynthesis. Light Off. Light Off Series Fig. 4. The time dependence of superimposed ESR signals of TMPD and R. rubnim chromatophores at different magnetic field positions when the light was turned on and off. From left to right each curve represents an increasing magnetic field value, where an increase in TMPD radical ion concentration first adds to and then subtracts from the chromatophore ESR signal. An increase in the ESR signal due to chromatophores is always in the positive direction. Final absorbancy at 880 m/i was ca. , and the
. Bacterial photosynthesis. Bacteria -- Physiology; Photosynthesis. Light Off. Light Off Series Fig. 4. The time dependence of superimposed ESR signals of TMPD and R. rubnim chromatophores at different magnetic field positions when the light was turned on and off. From left to right each curve represents an increasing magnetic field value, where an increase in TMPD radical ion concentration first adds to and then subtracts from the chromatophore ESR signal. An increase in the ESR signal due to chromatophores is always in the positive direction. Final absorbancy at 880 m/i was ca. , and the TMPD concentration was ca. 10-5 m. Modulation amplitude 9 gauss. sponse time than the chromatophore signal, both for formation in the light and decay in the dark. The kinetics are complex, however, and do not allow any definitive statement to be made at this time concern- ing the interaction of TMPD and the system responsible for the ESR signal in R. rubnon chromatophores. This system is interesting for the reason that it allows experimental detection of both the component. 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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