Abstract

ESR studies at approximately 10 °K on the reaction centre complex of the photosynthetic bacterium Rhodopseudomonas spheroides (strain R26), have revealed bacteriochlorophyll triplet states and a component which has an ESR absorption centred at g = 1.82. The triplet-state bacteriochlorophyll is induced only in the light and is only detectable when the reaction-centre bacteriochlorophyll and its primary electron acceptor are reduced; the ESR triplet state signals are composed of both ESR absorption and ESR emission bands. The oxidation-reduction properties of the g = 1.82 component and its flash-induced kinetic behavior in relation to that of P870 are those expected for the primary electron acceptor in bacterial photosynthesis.

Full Text
Published version (Free)

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call