Literature DB >> 12440723

Stimulation of oxygen evolution in photosystem II by copper(II) ions.

Kvetoslava Burda1, Jerzy Kruk, Kazimierz Strzalka, Georg H Schmid.   

Abstract

We have found that copper(II) ions at about equimolar Cu2+/photosystem II (PS II) reaction center proportions stimulate oxygen evolution nearly twofold. This high affinity Cu-binding site is different from the binding sites of Mn and Ca ions. The analysis of the Cu2+ content in PS II preparations isolated from wild-type tobacco and a tobacco mutant deficient in light-harvesting complex suggests that Cu2+ may be a native component of PS II and may take part in the oxygen evolution process. At higher concentrations, Cu2+ ions inhibit oxygen evolution and quench fluorescence.

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Year:  2002        PMID： 12440723     DOI： 10.1515/znc-2002-9-1016

Source DB:  PubMed          Journal:  Z Naturforsch C J Biosci        ISSN： 0341-0382


  3 in total

1.  Inhibition of oxygen evolution in Photosystem II by Cu(II) ions is associated with oxidation of cytochrome b559.

Authors:  Kvetoslava Burda; Jerzy Kruk; Georg H Schmid; Kazimierz Strzalka
Journal:  Biochem J       Date:  2003-04-15       Impact factor: 3.857

2.  Rapid ecotoxicological bioassay using delayed fluorescence in the marine cyanobacterium Cyanobium sp. (NIES-981).

Authors:  Takahiro Yamagishi; Masakazu Katsumata; Haruyo Yamaguchi; Yohei Shimura; Masanobu Kawachi; Hiroshi Koshikawa; Yoshifumi Horie; Norihisa Tatarazako
Journal:  Ecotoxicology       Date:  2016-09-15       Impact factor: 2.823

3.  Effects of Novel Photosynthetic Inhibitor [CuL2]Br2 Complex on Photosystem II Activity in Spinach.

Authors:  Sergey K Zharmukhamedov; Mehriban S Shabanova; Margarita V Rodionova; Irada M Huseynova; Mehmet Sayım Karacan; Nurcan Karacan; Kübra Begüm Aşık; Vladimir D Kreslavski; Saleh Alwasel; Suleyman I Allakhverdiev
Journal:  Cells       Date:  2022-08-28       Impact factor: 7.666
  3 in total

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