分离的光系统 II 反应中心的热致发光性质。

Thermoluminescence properties of the isolated photosystem two reaction centre.

机构信息

Institute of Plant Physiology, Biological Research Center, Hungarian Academy of Sciences, P.O. Box 521, H-6701, Szeged, Hungary.

出版信息

Photosynth Res. 1989 Dec;22(3):295-301. doi: 10.1007/BF00048307.

DOI:10.1007/BF00048307

PMID:24424818

Abstract

Formation of thermoluminescence signals is characteristics of energy- and charge storage in Photosystem II. In isolated D1/D2/cytochrome b-559 Photosystem II reaction centre preparation four thermoluminescence components were found. These appear at -180 (Z band), between -80 and -50 (Zv band), at -30 and at +35°C. The Z band arises from pigment molecules but not correlated with photosynthetic activity. The Zv and -30°C bands arise from the recombination of charge pairs stabilized in the Photosystem II reaction centre complex. The +35°C band probably corresponds to the artefact glow peak resulting from a pigment-protein-detergent interaction in subchloroplast preparations (Rózsa Zs, Droppa M and Horváth G (1989) Biochim Biophys Acta 973, 350-353).

摘要

热致发光信号的形成是光系统 II 中能量和电荷存储的特征。在分离的 D1/D2/细胞色素 b-559 光系统 II 反应中心制剂中发现了四个热致发光成分。这些成分出现在-180°C（Z 带）、-80°C 到-50°C（Zv 带）、-30°C 和+35°C。Z 带源于色素分子，但与光合作用活性无关。Zv 带和-30°C 带源于在光系统 II 反应中心复合物中稳定的电荷对的复合。+35°C 带可能对应于亚叶绿体制剂中由于色素-蛋白-去污剂相互作用而产生的人工发光峰（Rózsa Zs、Droppa M 和 Horváth G（1989）Biochim Biophys Acta 973, 350-353）。