The regulative role of the photooxidase reaction of purple popule Rhodospirillum rubrum

It was stated that in aerobic conditions due to care of electrons to oxygen, and in anaerobic conditions in presence of an electron donor generation of membrane potential was repressed. The repression was removed in the fu-st care when anaerobic conditions were created (amber acid) and in the second care when electron acceptor was added (fumarate acid, O2, ТеОз^")- The data obtained illustrate the regulative role of the photooxidase reaction of pmple bacteria in the generation of membrane potential, due to work of the cyclic redox-chain.