Role of singlet oxygen in chloroplast to nucleus retrograde signaling in Chlamydomonas reinhardtii

被引：98

作者：

Fischer, Beat B. ^{[2
]}

Krieger-Liszkay, Anja ^{[1
]}

Hideg, Eva ^{[3
]}

Snyrychova, Iva ^{[3
,4
]}

Wiesendanger, Manuela ^{[2
]}

Eggen, Rik I. L. ^{[2
]}

机构：

[1] CEA, iBiTecS, CNRS, URA 2096,Serv Bioenerget Biol Struct & Mecanisme, F-91191 Gif Sur Yvette, France

[2] Swiss Fed Inst Aquat Sci & Technol, Eawag, Dept Environm Toxicol, CH-8600 Dubendorf, Switzerland

[3] Biol Res Ctr, Inst Plant Biol, H-6701 Szeged, Hungary

[4] Palacky Univ, Biophys Lab, CR-77147 Olomouc, Czech Republic

来源：

FEBS LETTERS | 2007年 / 581卷 / 29期

关键词：

glutathione peroxidase; photosystem II; photoinhibition; singlet oxygen; signaling; Chlamydomonas reinhardtii;

D O I：

10.1016/j.febslet.2007.11.003

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：

High light illumination of photosynthetic organisms stimulates the production of singlet oxygen by photosystem II and causes photooxidative stress. In Chlamydomonas reinhardtii, singlet oxygen also induces the expression of the nuclear-encoded glutathione peroxidase homologous gene GPXH. We provide evidence that singlet oxygen stimulates GPXH expression by activating a signaling mechanism outside the thylakoid membrane. Singlet oxygen from photosystem II could be detected with specific probes in the aqueous phase of isolated thylakoid suspensions and the cytoplasm of high light stressed cells. This indicates that singlet oxygen can stimulate a response farther from its production site than generally believed. (c) 2007 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.

引用

页码：5555 / 5560

页数：6

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