ZEAXANTHIN DEPENDENT AND ZEAXANTHIN INDEPENDENT CHANGES IN NONPHOTOCHEMICAL ENERGY-DISSIPATION

被引：16

作者：

RICHTER, M

GOSS, R

BOTHIN, B

WILD, A

机构：

[1] Institut für Allgemeine Botanik, Universität Mainz, Mainz, D-55099

来源：

JOURNAL OF PLANT PHYSIOLOGY | 1994年 / 143卷 / 4-5期

关键词：

SPINACIA OLERACEA; CHLOROPHYLL FLUORESCENCE; ISOLATED THYLAKOIDS; QUANTUM YIELD OF OXYGEN EVOLUTION; ZEAXANTHIN;

D O I：

10.1016/S0176-1617(11)81812-2

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

The influence of zeaxanthin on high-energy-state quenching (q(E)) of room temperature chlorophyll fluorescence and on the quantum yield of oxygen evolution(Phi(O2)) has been studied with isolated spinach thylakoids. A set of three different pretreatments was tested which all led to thylakoids with high contents of zeaxanthin. Depending on the presence of light the pretreatments differed strongly with respect to their effect on nonphotochemical fluorescence quenching. Independently from the extent of changes in nonphotochemical energy dissipation in the membrane energized state as reflected by nonphotochemical quenching the light pretreatments caused also changes in nonphotochemical energy dissipation in the nonenergized state as measured by the quantum yield of oxygen evolution (Phi(O2)) in uncoupled thylakoids. Zeaxanthin was not involved in the decrease of (Phi(O2)).

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页码：495 / 499

页数：5

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