Effect of artificial redox mediators on the photoinduced oxygen reduction by photosystem I complexes

Anastasia Petrova; Mahir Mamedov; Boris Ivanov; Alexey Semenov; Marina Kozuleva

doi:10.1007/s11120-018-0514-z

Effect of artificial redox mediators on the photoinduced oxygen reduction by photosystem I complexes

Anastasia Petrova, Mahir Mamedov, Boris Ivanov, Alexey Semenov, Marina Kozuleva^*

^*Corresponding author for this work

School of Plant Sciences and Food Security

Research output: Contribution to journal › Article › peer-review

Abstract

The peculiarities of interaction of cyanobacterial photosystem I with redox mediators 2,6-dichlorophenolindophenol (DCPIP) and N,N,N′,N′-tetramethyl-p-phenylenediamine (TMPD) were investigated. The higher donor efficiency of the reduced DCPIP form was demonstrated. The oxidized form of DCPIP was shown to be an efficient electron acceptor for terminal iron–sulfur cluster of photosystem I. Likewise methyl viologen, after one-electron reduction, DCPIP transfers an electron to the molecular oxygen. These results were discussed in terms of influence of these interactions on photosystem I reactions with the molecular oxygen and natural electron acceptors.

Original language	English
Pages (from-to)	421-429
Number of pages	9
Journal	Photosynthesis Research
Volume	137
Issue number	3
DOIs	https://doi.org/10.1007/s11120-018-0514-z
State	Published - 1 Sep 2018

Keywords

2,6-Dichlorophenolindophenol
Electron acceptor
Methyl viologen
Midpoint potential
N,N,N′,N′-tetramethyl-p-phenylenediamine
Oxygen reduction
Photosystem I
Redox mediator

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10.1007/s11120-018-0514-z

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title = "Effect of artificial redox mediators on the photoinduced oxygen reduction by photosystem I complexes",

abstract = "The peculiarities of interaction of cyanobacterial photosystem I with redox mediators 2,6-dichlorophenolindophenol (DCPIP) and N,N,N′,N′-tetramethyl-p-phenylenediamine (TMPD) were investigated. The higher donor efficiency of the reduced DCPIP form was demonstrated. The oxidized form of DCPIP was shown to be an efficient electron acceptor for terminal iron–sulfur cluster of photosystem I. Likewise methyl viologen, after one-electron reduction, DCPIP transfers an electron to the molecular oxygen. These results were discussed in terms of influence of these interactions on photosystem I reactions with the molecular oxygen and natural electron acceptors.",

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AU - Petrova, Anastasia

AU - Mamedov, Mahir

AU - Ivanov, Boris

AU - Semenov, Alexey

AU - Kozuleva, Marina

PY - 2018/9/1

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AB - The peculiarities of interaction of cyanobacterial photosystem I with redox mediators 2,6-dichlorophenolindophenol (DCPIP) and N,N,N′,N′-tetramethyl-p-phenylenediamine (TMPD) were investigated. The higher donor efficiency of the reduced DCPIP form was demonstrated. The oxidized form of DCPIP was shown to be an efficient electron acceptor for terminal iron–sulfur cluster of photosystem I. Likewise methyl viologen, after one-electron reduction, DCPIP transfers an electron to the molecular oxygen. These results were discussed in terms of influence of these interactions on photosystem I reactions with the molecular oxygen and natural electron acceptors.

KW - 2,6-Dichlorophenolindophenol

KW - Electron acceptor

KW - Methyl viologen

KW - Midpoint potential

KW - N,N,N′,N′-tetramethyl-p-phenylenediamine

KW - Oxygen reduction

KW - Photosystem I

KW - Redox mediator

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Effect of artificial redox mediators on the photoinduced oxygen reduction by photosystem I complexes

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Keywords

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