THE INVOLVEMENT OF PHOTOSYSTEM-II-GENERATED H2O2 IN PHOTOINHIBITION

被引：34
作者：
BRADLEY, RL
LONG, KM
FRASCH, WD
机构：
[1] ARIZONA STATE UNIV,DEPT BOT,TEMPE,AZ 85287
[2] ARIZONA STATE UNIV,CTR STUDY EARLY EVENTS PHOTOSYNTH,TEMPE,AZ 85287
来源：
FEBS LETTERS | 1991年 / 286卷 / 1-2期
关键词：
PHOTOSYSTEM-II; D1-PROTEIN; PHOTOINHIBITION; H2O2;
D O I：
10.1016/0014-5793(91)80975-9
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 involvement of H2O2 generated by photosystem II (PSII) in the process of photoinhibition of thylakoids with a functional oxygen-evolving complex (OEC) was investigated. The rate of photoinhibition was decreased to the rate of loss of activity in the dark when bovine Fe-catalase was present during the photoinhibitory illumination. Photoinhibition was accelerated for both Cl--depleted and Cl--sufficient thylakoids when KCN was present to inhibit the thylakoid-bound Fe-catalase. We propose that these preparations become photoinhibed by reactions with H2O2 produced via oxidation of water by the Cl--depleted OEC and by reduction of O2 at the Q(B) site when PSII is illuminated without an electron acceptor.
引用
收藏
页码：209 / 213
页数：5
相关论文
共 42 条
[1]   ELECTRON-TRANSPORT IN PHOTOSYSTEM-I AND PHOTOSYSTEM-II [J].
ANDREASSON, LE ;
VANNGARD, T .
ANNUAL REVIEW OF PLANT PHYSIOLOGY AND PLANT MOLECULAR BIOLOGY, 1988, 39 :379-411
[2]   RAPID, LIGHT-INDUCED TRANSIENT IN ELECTRON-PARAMAGNETIC RESONANCE SIGNAL II ACTIVATED UPON INHIBITION OF PHOTOSYNTHETIC OXYGEN EVOLUTION [J].
BABCOCK, GT ;
SAUER, K .
BIOCHIMICA ET BIOPHYSICA ACTA, 1975, 376 (02) :315-328
[3]   RAPID COMPONENT OF ELECTRON-PARAMAGNETIC RESONANCE SIGNAL II - CANDIDATE FOR PHYSIOLOGICAL DONOR TO PHOTOSYSTEM-II IN SPINACH-CHLOROPLASTS [J].
BABCOCK, GT ;
SAUER, K .
BIOCHIMICA ET BIOPHYSICA ACTA, 1975, 376 (02) :329-344
[4]   MECHANISM OF PHOTOINHIBITION OF PHOTOSYNTHETIC WATER OXIDATION BY CL- DEPLETION AND F- SUBSTITUTION - OXIDATION OF A PROTEIN RESIDUE [J].
BAUMGARTEN, M ;
PHILO, JS ;
DISMUKES, GC .
BIOCHEMISTRY, 1990, 29 (48) :10814-10822
[5]   ACTIVE-SITE MODIFICATION OF SUPEROXIDE-DISMUTASE BY H2O2 STUDIED THROUGH H-1-NMR OF THE COBALT DERIVATIVES [J].
BERTINI, I ;
LUCHINAT, C ;
VIEZZOLI, MS ;
WANG, Y .
ARCHIVES OF BIOCHEMISTRY AND BIOPHYSICS, 1989, 269 (02) :586-594
[6]   KINETICS OF PHOTOINHIBITION IN HYDROXYLAMINE-EXTRACTED PHOTOSYSTEM-II MEMBRANES - RELEVANCE TO PHOTOACTIVATION AND SITES OF ELECTRON DONATION [J].
BLUBAUGH, DJ ;
CHENIAE, GM .
BIOCHEMISTRY, 1990, 29 (21) :5109-5118
[7]  
BORNSTEIN P, 1977, METHOD ENZYMOL, V47, P32
[8]   HISTIDINE OXIDATION IN THE OXYGEN-EVOLVING PHOTOSYSTEM-II ENZYME [J].
BOUSSAC, A ;
ZIMMERMANN, JL ;
RUTHERFORD, AW ;
LAVERGNE, J .
NATURE, 1990, 347 (6290) :303-306
[9]   CLOSE ASSOCIATION OF THE 33-KDA EXTRINSIC PROTEIN WITH THE APOPROTEIN OF CPA1 IN PHOTOSYSTEM-II [J].
BRICKER, TM ;
ODOM, WR ;
QUEIROLO, CB .
FEBS LETTERS, 1988, 231 (01) :111-117
[10]   STUDIES ON THE PHOTOACTIVATION OF THE WATER-OXIDIZING ENZYME .2. CHARACTERIZATION OF WEAK LIGHT PHOTOINHIBITION OF PSII AND ITS LIGHT-INDUCED RECOVERY [J].
CALLAHAN, FE ;
BECKER, DW ;
CHENIAE, GM .
PLANT PHYSIOLOGY, 1986, 82 (01) :261-269
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