FOURIER-TRANSFORM INFRARED-SPECTRUM OF THE RADICAL-CATION OF BETA-CAROTENE PHOTOINDUCED IN PHOTOSYSTEM-II

被引：60

作者：

NOGUCHI, T

MITSUKA, T

INOUE, Y

机构：

[1] Solar Energy Research Group, The Institute of Physical and Chemical Research (Riken), Wako, Saitama

来源：

FEBS LETTERS | 1994年 / 356卷 / 2-3期

关键词：

PHOTOSYNTHESIS; PHOTOSYSTEM II; FOURIER TRANSFORM INFRARED SPECTROSCOPY; CAROTENOID; RADICAL CATION;

D O I：

10.1016/0014-5793(94)01263-6

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

A Fourier-transform infrared (FTIR) spectrum of the radical cation of beta-carotene photoinduced in photosystem II (PSII) membranes was obtained at 80K under oxidizing conditions, by utilizing the light-induced FTIR difference technique. Formation of the beta-carotene cation was monitored with the electronic absorption band at 993 nm. An FTIR spectrum of a chemically-generated beta-carotene cation in chloroform was also measured and compared with the spectrum of PSII. Since the FTIR bands of carotenoid cation have characteristic features with strong intensities, they can be useful markers in studying the reaction of carotenoid in PSII.

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页码：179 / 182

页数：4

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