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1983 (1)
1Author    W. S. Cohen, J. R. BartonRequires cookie*
 Title    The Use of 0 2-Evolving Subchloroplast Particles to Study Acceptor and Inhibitor Sites on the Reducing Side of Photosystem II  
 Abstract    Photosystem II particles that retain the ability to evolve 0 2 have been used to exam ine acceptor and inhibitor sites in the photosynthetic electron transfer chain between Q and plasto-quinone. Employing the water to dichlorobenzoquinone reaction to assay photosystem II activity, we have demonstrated that electron transport in thylakoids and particles is equally sensitive to inhibition by D C M U , dinoseb, metribuzin, H Q N O and DBMIB. Based on differential sensitivity to inhibition by D C M U vs. H Q N O or DBMIB, we suggest that when synthetic quinones, e.g. 2,6-dichlorobenzoquinone operate as Hill reagents in particles they are reduced primarily by the plastoquinone pool. W hen synthetic quinones, e.g. 5,6-m ethylenedioxy-2,3-dim ethyl benzoquinone act as autoxidizable acceptors they accept electron from the Q /B com plex at a point that is located between the D C M U and H Q N O (DBM IB) inhibition sites. 
  Reference    Z. Naturforsch. 38c, 793—798 (1983); received April 26 1983 
  Published    1983 
  Keywords    Thylakoids, Photosystem II Particles, Q uinones, Inhibitors, Electron Transfer 
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 TEI-XML for    default:Reihe_C/38/ZNC-1983-38c-0793.pdf 
 Identifier    ZNC-1983-38c-0793 
 Volume    38