Activation of electron donation from hydrogen peroxide by manganese in non-oxygen evolving photosystem II particles

Analysis of the activation of H2O2-supported 2,6-dichloroindophenol (DCIP) photoreduction by MnCl2 showed two Mn2+-binding sites in non-oxygen evolving PS II particles, with large (0.4⊘IM) and small (0.04 μm) Km values for Mn2+. Photoreduction through the high-affinity Mn2+.-binding site was inhibit...

Full description

Saved in:
Bibliographic Details
Published in:Plant and cell physiology 1987-10, Vol.28 (7), p.1339-1343
Main Authors: Inoue, H. (Toyama Univ. (Japan)), Akahori, H, Noguchi, M
Format: Article
Language:English
Subjects:
Agronomy. Soil science and plant productions
BIOCHEMICAL PATHWAYS
Biological and medical sciences
Cell structures and functions
Chloroplast, photosynthetic membrane and photosynthesis
Economic plant physiology
FOTOSINTESIS
Fundamental and applied biological sciences. Psychology
HYDROGEN PEROXIDE
MANGANESE
MANGANESO
Molecular and cellular biology
Net assimilation, photosynthesis, carbon metabolism. Photorespiration, respiration, fermentation (anoxia, hypoxia)
Nutrition. Photosynthesis. Respiration. Metabolism
PEROXIDO DE HIDROGENO
PEROXYDE D'HYDROGENE
PHOTOSYNTHESE
PHOTOSYNTHESIS
Photosystem II
Spinach (Spinacia oleracea L.)
SPINACIA OLERACEA
VIA BIOQUIMICA DEL METABOLISMO
VOIE BIOCHIMIQUE DU METABOLISME
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Analysis of the activation of H2O2-supported 2,6-dichloroindophenol (DCIP) photoreduction by MnCl2 showed two Mn2+-binding sites in non-oxygen evolving PS II particles, with large (0.4⊘IM) and small (0.04 μm) Km values for Mn2+. Photoreduction through the high-affinity Mn2+.-binding site was inhibited by treatment with H2O2.
ISSN:0032-0781
1471-9053
1471-9053
DOI:10.1093/oxfordjournals.pcp.a077424