Investigation of electron transport in the photosynthetic systems of higher plants by the EPR method-II. Influence of temperature on the course of photo-induced redox conversions of P700

With fall in temperature a heavy drop in the EPR I signal is observed on switching on light of 600 nm against a background of light of 707 nm; the course of the origin of the signals from light of 707 nm becomes complicated; the induction phase due to preliminary illumination with light of 600 nm increases.