Literature DB >> 25712165

Low-temperature (77 K) phosphorescence of triplet chlorophyll in isolated reaction centers of photosystem II.

Konstantin V Neverov1, Alexander A Krasnovsky, Alexey A Zabelin, Vladimir A Shuvalov, Anatoly Ya Shkuropatov.   

Abstract

Phosphorescence characterized by the main emission band at 952 ± 1 nm (1.30 eV), the lifetime of 1.5 ± 0.1 ms and the quantum yield nearly equal to that for monomeric chlorophyll a in aqueous detergent dispersions, has been detected in isolated reaction centers (RCs) of spinach photosystem II at 77 K. The excitation spectrum shows maxima corresponding to absorption bands of chlorophyll a, pheophytin a, and β-carotene. The phosphorescence intensity strongly depends upon the redox state of RCs. The data suggest that the phosphorescence signal originates from the chlorophyll triplet state populated via charge recombination in the radical pair [Formula: see text].

Entities:  

Mesh：

Substances：

Year:  2015        PMID： 25712165     DOI： 10.1007/s11120-015-0105-1

Source DB:  PubMed          Journal:  Photosynth Res        ISSN： 0166-8595            Impact factor:   3.573


  18 in total

1.  Triplet formation on a monomeric chlorophyll in the photosystem II reaction center as studied by time-resolved infrared spectroscopy.

Authors:  T Noguchi; T Tomo; C Kato
Journal:  Biochemistry       Date:  2001-02-20       Impact factor: 3.162

2.  Pigment assignment in the absorption spectrum of the photosystem II reaction center by site-selection fluorescence spectroscopy.

Authors:  L Konermann; I Yruela; A R Holzwarth
Journal:  Biochemistry       Date:  1997-06-17       Impact factor: 3.162

3.  Phosphorescence study of chlorophyll d photophysics. Determination of the energy and lifetime of the photo-excited triplet state. Evidence of singlet oxygen photosensitization.

Authors:  Konstantin V Neverov; Stefano Santabarbara; Alexander A Krasnovsky
Journal:  Photosynth Res       Date:  2011-05-15       Impact factor: 3.573

4.  Rapid and simple isolation of pure photosystem II core and reaction center particles from spinach.

Authors:  P J van Leeuwen; M C Nieveen; E J van de Meent; J P Dekker; H J van Gorkom
Journal:  Photosynth Res       Date:  1991-06       Impact factor: 3.573

Review 5.  Spectral and kinetic parameters of phosphorescence of triplet chlorophyll a in the photosynthetic apparatus of plants.

Authors:  A A Krasnovsky; Yu V Kovalev
Journal:  Biochemistry (Mosc)       Date:  2014-04       Impact factor: 2.487

6.  Site-directed mutations at D1-His198 and D2-His197 of photosystem II in Synechocystis PCC 6803: sites of primary charge separation and cation and triplet stabilization.

Authors:  B A Diner; E Schlodder; P J Nixon; W J Coleman; F Rappaport; J Lavergne; W F Vermaas; D A Chisholm
Journal:  Biochemistry       Date:  2001-08-07       Impact factor: 3.162

7.  A well resolved ODMR triplet minus singlet spectrum of P680 from PSII particles.

Authors:  D Carbonera; G Giacometti; G Agostini
Journal:  FEBS Lett       Date:  1994-05-02       Impact factor: 4.124

8.  Pigment organization and their interactions in reaction centers of photosystem II: optical spectroscopy at 6 K of reaction centers with modified pheophytin composition.

Authors:  M Germano; A Y Shkuropatov; H Permentier; R de Wijn; A J Hoff; V A Shuvalov; H J van Gorkom
Journal:  Biochemistry       Date:  2001-09-25       Impact factor: 3.162

9.  Isolation of a photosystem II reaction center consisting of D-1 and D-2 polypeptides and cytochrome b-559.

Authors:  O Nanba; K Satoh
Journal:  Proc Natl Acad Sci U S A       Date:  1987-01       Impact factor: 11.205

10.  Fourier transform infrared study of the cation radical of P680 in the photosystem II reaction center: evidence for charge delocalization on the chlorophyll dimer.

Authors:  T Noguchi; T Tomo; Y Inoue
Journal:  Biochemistry       Date:  1998-09-29       Impact factor: 3.162
View more

北京卡尤迪生物科技股份有限公司 © 2022-2023.