Abstract
The authors have studied the effect of reversible extraction of Mn on the e.s.r. signal II belonging to the secondary electron donor (Z+) and the doublet e.s.r. signal of reduced pheophytin (pheoτ) and the plastquinone complex with iron (PCτ-Fe2+) in the oxygen evolving preparations of photosystem II (p.s. II). It is shown that after complete removal of Mn from the p.s. II preparations both the dark and photo-induced e.s.r. signal II and the doublet e.s.r. signal persist. It is concluded that Mn is not a component of the secondary electron donor Z of photosystem II and that its complete extraction does not disturb the exchange interaction between the anion radical pheoτ and the reduced complex PCτ-Fe2+.
Original language | English |
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Pages (from-to) | 643-646 |
Number of pages | 4 |
Journal | Biophysics |
Volume | 33 |
Issue number | 4 |
Publication status | Published - Dec 1 1988 |
Externally published | Yes |
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ASJC Scopus subject areas
- Biophysics
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E.s.r. signals of photosystem II after complete removal of manganese from the subchloroplast particles. / Allakhverdiev, Suleyman; Klimov, V. V.; Proskuryakov, I. I.
In: Biophysics, Vol. 33, No. 4, 01.12.1988, p. 643-646.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - E.s.r. signals of photosystem II after complete removal of manganese from the subchloroplast particles
AU - Allakhverdiev, Suleyman
AU - Klimov, V. V.
AU - Proskuryakov, I. I.
PY - 1988/12/1
Y1 - 1988/12/1
N2 - The authors have studied the effect of reversible extraction of Mn on the e.s.r. signal II belonging to the secondary electron donor (Z+) and the doublet e.s.r. signal of reduced pheophytin (pheoτ) and the plastquinone complex with iron (PCτ-Fe2+) in the oxygen evolving preparations of photosystem II (p.s. II). It is shown that after complete removal of Mn from the p.s. II preparations both the dark and photo-induced e.s.r. signal II and the doublet e.s.r. signal persist. It is concluded that Mn is not a component of the secondary electron donor Z of photosystem II and that its complete extraction does not disturb the exchange interaction between the anion radical pheoτ and the reduced complex PCτ-Fe2+.
AB - The authors have studied the effect of reversible extraction of Mn on the e.s.r. signal II belonging to the secondary electron donor (Z+) and the doublet e.s.r. signal of reduced pheophytin (pheoτ) and the plastquinone complex with iron (PCτ-Fe2+) in the oxygen evolving preparations of photosystem II (p.s. II). It is shown that after complete removal of Mn from the p.s. II preparations both the dark and photo-induced e.s.r. signal II and the doublet e.s.r. signal persist. It is concluded that Mn is not a component of the secondary electron donor Z of photosystem II and that its complete extraction does not disturb the exchange interaction between the anion radical pheoτ and the reduced complex PCτ-Fe2+.
UR - http://www.scopus.com/inward/record.url?scp=45549115760&partnerID=8YFLogxK
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M3 - Article
AN - SCOPUS:45549115760
VL - 33
SP - 643
EP - 646
JO - Biophysics (Russian Federation)
JF - Biophysics (Russian Federation)
SN - 0006-3509
IS - 4
ER -