THE 2(1)AG- STATE OF A CAROTENOID BOUND TO SPINACH CHLOROPLAST AS REVEALED BY PICOSECOND TRANSIENT RAMAN-SPECTROSCOPY

被引：17

作者：

HASHIMOTO, H ^{[1
]}

KOYAMA, Y ^{[1
]}

机构：

[1] KWANSEI GAKUIN UNIV,FAC SCI,NISHINOMIYA,HYOGO 662,JAPAN

来源：

BIOCHIMICA ET BIOPHYSICA ACTA | 1990年 / 1017卷 / 02期

关键词：

(Spinach); Carotenoid; Chloroplast; Raman; transient; Singlet (2[!sup]1[!/sup]A[!sup]-[!/sup][!sub]g[!/sub]) state;

D O I：

10.1016/0005-2728(90)90150-3

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：

The S1 Raman spectrum of a carotenoid bound to the photosynthetic membrane (spinach chloroplasts) is reported for the first time. The spectrum is ascribed mainly to all-trans-β-carotene (the specific component of the reaction centers and the core antenna complexes). The C=C stretching line at 1753 cm-1 evidences; (1) that the S1 state of the carotenoid detected is actually the 21A-g state, and (2) that the vibronic coupling between the 21A-g (S1) state and the 1A-g (S0) state is weakened by the binding of the carotenoid to the apo-complex (peptides and chlorophylls). © 1990.

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页码：181 / 186

页数：6

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