EXCITATION-ENERGY QUENCHING IN AGGREGATES OF THE LHC-II CHLOROPHYLL-PROTEIN COMPLEX - A LASER-INDUCED OPTOACOUSTIC STUDY

被引：8

作者：

MULLINEAUX, CW

机构：

[1] Robert Hill Institute, Department of Molecular Biology and Biotechnology, University of Sheffield, Sheffield

来源：

BIOCHIMICA ET BIOPHYSICA ACTA | 1993年 / 1143卷 / 02期

关键词：

PHOTOSYNTHESIS; LIGHT-HARVESTING COMPLEX; ENERGY QUENCHING; FLUORESCENCE QUENCHING; HEAT EVOLUTION; OPTOACOUSTIC SPECTROSCOPY;

D O I：

10.1016/0005-2728(93)90148-9

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 aggregation of isolated LHC II leads to the formation of an efficient excitation energy quenching mechanism which has been proposed as a model for DELTApH-dependent quenching in vivo. Here, I use laser-induced optoacoustic spectroscopy to show that the associated heat release is complete within 360 ns. The implications for the photochemical mechanism are discussed.

引用

页码：235 / 238

页数：4

共 17 条

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