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1984 (2)
1Author    JanF H Snel, D. Irk, N. Aber, JackJ S Van, R. EnsenRequires cookie*
 Title    Formate as an Inhibitor of Photosynthetic Electron Flow  
 Abstract    The effects o f formate on the Hill reaction in isolated broken pea chloroplasts were in­ vestigated. Addition o f formate to chloroplasts has two distinct effects: I. basal electron flow can be stimulated 3-fold; 2. uncoupled electron flow is inhibited. The stim ulating effect is due to uncoupling by formate and appears instantaneous. M axim al inhibition by form ate is only observed after prolonged illumination. The inhibitory action o f form ate on electron flow can be relieved by bicarbonate *. 
  Reference    Z. Naturforsch. 39c, 386—3 (1984); received D ecem ber 21 1983 
  Published    1984 
  Keywords    Photosynthesis, Hill Reaction, Formate, Bicarbonate, Inhibition 
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 TEI-XML for    default:Reihe_C/39/ZNC-1984-39c-0386.pdf 
 Identifier    ZNC-1984-39c-0386 
 Volume    39 
2Author    JohnL. Huppatz, JohnN. PhillipsRequires cookie*
 Title    Cyanoacrylate Inhibitors of the Hill Reaction III. Stereochemical and Electronic Aspects of Inhibitor Binding  
 Abstract    Ethoxyethyl 3-octylamino-2-cyanoacrylate and related com pounds in which the am ino group was replaced by N -C H 3, S, O and CH 2 were synthesized and their activity as inhibitors o f the Hill reaction in isolated pea chloroplasts determ ined. All com pounds show ed m oderate to high activity but there was no obvious correlation between activity and the electronic character o f the ester carbonyl group. The stereochemistry o f the various inhibitor m olecules was deduced from the PMR spectra and the possible influence o f stereochem istry on Hill inhibitory activity discussed. Replacement o f the olefinic proton in the 2-cyanoacrylates with a /?-alkyl substituent was examined and a specific relationship between the length o f the alkyl chain and activity was observed. 
  Reference    Z. Naturforsch. 39c, 617 (1984); received D ecem ber 28 1983 
  Published    1984 
  Keywords    Cyanoacrylates, Inhibitors o f Electron Transport, Hill Reaction, Stereochemistry 
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 TEI-XML for    default:Reihe_C/39/ZNC-1984-39c-0617.pdf 
 Identifier    ZNC-1984-39c-0617 
 Volume    39