Orientation and linear dichroism of the reaction centers from Rhodopseudomonas sphaeroides R-26.

Linear dicroism of chromatophores and isolated reaction centers from the photosynthetic bacterium Rhodopseudomonas sphaeroides strain R-26 was studied using a novel technique of orientation. The results are discussed in view of the reaction center structure and its position in the membrane. The advantages of the new orientation technique are also outlined.