. Bacterial photosynthesis. Bacteria -- Physiology; Photosynthesis. 186 METABOLISM AND PHYSIOLOGY I I OJ Photoreduction of TPN via DPN (R. rubrum chromatophores). + DPN (catalytic) boiled extract TPN only 9 m 10 20 30 40 50 minutes Fig. 1. Photoreduction of TPN via DPN by R. riibnou chromatophores. The reaction mixture included, in a final volume of 3 ml, chromatophores (containing 30 /yg bacteriochlorophyll) and the following (in //moles): tris buffer, pH , 100; magnesium chloride, 5; sodium ascorbate, 20; 2,6- dichlorophenolindophenol, ; TPN, 2. Also added was /ymole DPN or boiled
. Bacterial photosynthesis. Bacteria -- Physiology; Photosynthesis. 186 METABOLISM AND PHYSIOLOGY I I OJ Photoreduction of TPN via DPN (R. rubrum chromatophores). + DPN (catalytic) boiled extract TPN only 9 m 10 20 30 40 50 minutes Fig. 1. Photoreduction of TPN via DPN by R. riibnou chromatophores. The reaction mixture included, in a final volume of 3 ml, chromatophores (containing 30 /yg bacteriochlorophyll) and the following (in //moles): tris buffer, pH , 100; magnesium chloride, 5; sodium ascorbate, 20; 2,6- dichlorophenolindophenol, ; TPN, 2. Also added was /ymole DPN or boiled extract (see text) as indicated. The reaction was carried out in Thunberg type cuvettes at 20°C. TPN reduction was measured at 15 min intervals as the increase in optical density at 340 m//. Illumination, 10,000 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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