Extraction of electron acceptor A1from pea photosystem I
- 10 August 1987
- journal article
- Published by Wiley in FEBS Letters
- Vol. 220 (1) , 74-78
- https://doi.org/10.1016/0014-5793(87)80878-5
Abstract
Photosystem I particles were washed twice in either 0, 50 or 100% water‐saturated diethyl ether. It was found that the characteristic electron spin resonance signal associated with electron acceptor A1was progressively lost with increasing percentage saturation of the ether. Light‐induced electron flow to the terminal iron‐sulphur acceptors was inhibited although these acceptors were still present and could be chemically reduced. The kinetics of optical measurements of P700+re‐reduction at 820 nm following ether washing were consistent with removal of electron acceptor A1.Keywords
This publication has 15 references indexed in Scilit:
- UV optical difference spectrum associated with the reduction of electron acceptor A1in photosystem I of higher plantsFEBS Letters, 1986
- Flash‐induced absorption changes in photosystem I at low temperature: evidence that the electron acceptor A1is vitamin K1FEBS Letters, 1986
- Picosecond absorbance changes upon selective excitation of the primary electron donor P-700 in Photosystem IBiochimica et Biophysica Acta (BBA) - Bioenergetics, 1986
- Picosecond absorbance difference spectroscopy on the primary reactions and the antenna-excited states in Photosystem I particlesBiochimica et Biophysica Acta (BBA) - Bioenergetics, 1986
- Phylloquinone copurifies with the large subunit of photosystem IFEBS Letters, 1986
- Optical difference spectrum of the electron acceptor Aoin photosystem IFEBS Letters, 1985
- Multiple forms of P700-chlorophyll a-protein complexes from Synechococcus sp.: The iron, quinone and carotenoid contentsPhotosynthesis Research, 1985
- Primary photochemistry in photosystem-IPhotosynthesis Research, 1985
- Evidence for a new early acceptor in Photosystem I of plants. An ESR investigation of reaction center triplet yield and of the reduced intermediary acceptorsBiochimica et Biophysica Acta (BBA) - Bioenergetics, 1983
- Identification of multiple components in the intermediary electron carrier complex of photosystem IFEBS Letters, 1982