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1986 (1)
1976 (1)
1Author    G. Ünter, D. Ö. RinRequires cookie*
 Title    The Chlorophyll an Reaction in Trypsin-Treated Spinach Chloroplasts in the Presence of Potassium Ferricyanide  
 Abstract    In trypsin-treated spinach chloroplasts there is no linear electron flow from water to potassium ferricyanide. The chlorophyll a n reaction, however, is still active but insensitive to 3-(3,4-dichloro-phenyl)-l,l-dimethylurea. From this we conclude that ferricyanide and trypsin together stimulate a mini-cycle in photosystem II. 
  Reference    (Z. Naturforsch. 31c, 78 [1976]; received July 29/October 15 1975) 
  Published    1976 
  Keywords    Photosynthesis, Photosystem II, Trypsin-Treatment, Flash Excitation 
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 TEI-XML for    default:Reihe_C/31/ZNC-1976-31c-0078.pdf 
 Identifier    ZNC-1976-31c-0078 
 Volume    31 
2Author    Christof Niehrs, Jan AhlersRequires cookie*
 Title    Pentachlorophenol Inhibits Photosynthetic Electron Flow and Quenches Chlorophyll Fluorescence after Preillumination  
 Abstract    The pesticide PCP was shown to inhibit the Hill reaction in broken chloroplasts (I50 = 15 jam) and to quench chlorophyll fluorescence. Both effects require preillum ination. In contrast to the com m on "phenol-type" inhibitors, neither inhibition o f Hill reaction nor chlorophyll fluorescence quench were affected by pretreatm ent of chloroplast with trypsin instead o f preillum ination. An inhibition site differing from the "phenol type" inhibitors is therefore assum ed. The results presented indicate that the observed light requirem ent is due to electron transport through PS II. M easurem ents of intrinsic tryptophane fluorescence phobic environment. 
  Reference    Z. Naturforsch. 41c, 433 (1986); received N ovem ber 4 1985 
  Published    1986 
  Keywords    Photosynthesis, Pentachlorophenol, Chlorophyll F luorescence, H erbicides, Trypsin Treatment 
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 TEI-XML for    default:Reihe_C/41/ZNC-1986-41c-0433.pdf 
 Identifier    ZNC-1986-41c-0433 
 Volume    41