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'Herbicides' in keywords Facet   section ZfN Section C:Volume 029  [X]
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1974 (2)
1Author    E. De Frenne, J. Eberspächer, F. Lingens, W. SchäferRequires cookie*
 Title    Bacterial Hydroxylation of Pyrazon Compounds  
 Abstract    In cell suspensions of bacteria grown with 5-amino-4-chloro-2-phenyl-3 (2H)-pyridazinone (pyra­ zon) as sole source of carbon o-methyl-pvrazon and /n-methyl-pyrazon were converted to the cor­ responding hydroxymethyl compounds. p-Methyl-pyrazon was not metabolized. 
  Reference    (Z. Naturforsch. 29c, 283 [1974]; eingegangen am 14. Dezember 1973) 
  Published    1974 
  Keywords    Bacterial Degradation, Bacterial Hydroxylation, Herbicides 
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 TEI-XML for    default:Reihe_C/29/ZNC-1974-29c-0283.pdf 
 Identifier    ZNC-1974-29c-0283 
 Volume    29 
2Author    A. Trebst, E. HarthRequires cookie*
 Title    Herbicidal N-Alkylated-Ureas and Ringclosed N-Acylamides as Inhibitors of Photosystem II  
 Abstract    The inhibitory action of some herbicides on photosynthetic electron flow at photosystem I I in isolated chloroplasts was investigated. Emphasis in the study is on compounds, whose chemical structure seemed to be in disaccordance with the basic structural element, proposed to be required for a photosystem II inhibitor. The effective inhibition of photosynthetic oxygen evolution by N-alkylated urea-, pyrrolidone-and by substituted pyridazine-derivatives without a free NH-group is reported. A revised basic chemical structural element responsible for inhibition is deduced in order to include lactames (ringclosed N-acylamides) with and without hetero atoms. From this new groups of potential inhibitors, like triazolone-, thiadiazolone-and oxadiazolone-derivatives may be conceived. 
  Reference    (Z. Naturforsch. 29c, 232 [1974]; received February 4 1974) 
  Published    1974 
  Keywords    Inhibitor, Herbicides, Photosynthesis, Photosystem II, Chloroplasts 
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 TEI-XML for    default:Reihe_C/29/ZNC-1974-29c-0232.pdf 
 Identifier    ZNC-1974-29c-0232 
 Volume    29