Characterisation of the effects of Antimycin A upon high energy state quenching of chlorophyll fluorescence (qE) in spinach and pea chloroplasts
- 1 January 1987
- journal article
- conference paper
- Published by Springer Nature in Photosynthesis Research
- Vol. 12 (2) , 119-127
- https://doi.org/10.1007/bf00047942
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.Keywords
This publication has 19 references indexed in Scilit:
- ΔpH‐dependent chlorophyll fluorescence quenching indicating a mechanism of protection against photoinhibition of chloroplastsFEBS Letters, 1986
- Phosphorylation of chloroplast membrane proteins partially protects against photoinhibitionPlanta, 1985
- An improved procedure for the isolation of intact chloroplasts of high photosynthetic capacityBiochemical Journal, 1984
- Comparative aspects of quinol-cytochrome c/plastocyanin oxidoreductasesBiochimica et Biophysica Acta (BBA) - Reviews on Bioenergetics, 1983
- Relations between electron transport and carbon assimilation; simultaneous measurement of chlorophyll fluorescence, transthylakoid pH gradient and O2evolution in isolated chloroplastsProceedings of the Royal Society of London. B. Biological Sciences, 1983
- Analysis of the slow phases of the in vivo chlorophyll fluorescence induction curve. Changes in the redox state of Photosystem II electron acceptors and fluorescence emission from Photosystems I and IIBiochimica et Biophysica Acta (BBA) - Bioenergetics, 1981
- A quantitative study of the slow decline of chlorophyll a fluorescence in isolated chloroplastsBiochimica et Biophysica Acta (BBA) - Bioenergetics, 1979
- Interactions between Photosystem II components in chloroplast membranes. A correlation between the existence of a low potential species of cytochrome b-559 and low chlorophyll fluorescence in inhibited and developing chloroplastsBiochimica et Biophysica Acta (BBA) - Bioenergetics, 1978
- Acid‐base induced redox changes of the chloroplast cytochrome b‐559FEBS Letters, 1975
- High-potential cytochrome b−559 as a secondary quencher of chloroplast fluorescence in the presence of 3-(3,4-dichlorophenyl)-1,1-dimethylureaBiochimica et Biophysica Acta (BBA) - Bioenergetics, 1972