title: Characterisation of the effects of Antimycin A upon high energy state quenching of chlorophyll fluorescence (qE) in spinach and pea chloroplasts.
abstract: High energy state quenching of chlorophyll fluorescence (qE) is inhibited by low concentrations of the inhibitor antimycin A in intact and osmotically shocked chloroplasts isolated from spinach and pea plants. This inhibition is independent of any effect upon ΔpH (as measured by 9-aminoacridine fluorescence quenching). A dual control of qE formation, by ΔpH and the redox state of an unidentified chloroplast component, is implied. Results are discussed in terms of a role for qE in the dissipation of excess excitation energy within photosystem II.
authors.affiliation: Research Institute for Photosynthesis, The University of Sheffield, S10 2TN, England.
authors.forename: K
authors.initials: K
authors.lastname: Oxborough
authors.forename: P
authors.initials: P
authors.lastname: Horton