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'Chalcones' in keywords Facet   Publication Year 1974  [X]
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1Author    JochenB. Erlin, +., Peter Kiss, D. Ieter, M. Üller-Enoch, D. Ieter Gierse, W. Olfgang Barz, B. Oris JanistynRequires cookie*
 Title    Über den Abbau von Chalkonen und Isoflavonen in pflanzlichen Zellsuspensionskulturen Degradation of Chalcones and Isoflavones in P lant Cell Suspension Cultures  
 Abstract    Cell suspension culture of Phaseolus aureus, Glycine max and Pisum sativum have been used to determine the extent of chalcone and isoflavone catabolism. The A-rings of calcones and isoflavones with both resorcinol and phloroglucinol pattern of sub­ stitution have unequivocally been shown to be degraded as measured by carbon dioxide production The earlier described catabolic pathway of chalcones with the B-ring liberated as a substituted benzoic acid has been verified using another chalcone. With the use of various u C-labelled isoflavones it could be demonstrated that essentially all carbon atoms are introduced into catabolic reactions. Incorporation of 4',7-dihydroxyisoflavone (daidzein) into insoluble polymeric material has been shown to proceed via the 3',4',7-trihydroxyisoflavone. 3'-Hydroxylation and subsequent polymeri­ sation of the orf/io-dihydroxy compound can completely be inhibited by using anaerobic conditions which favour glucoside formation instead. 4'-0-Methylgroups in isoflavones prevent the phenolase catalzyed 3'-hydroxylation and thus the incorporation of isoflavones into polymeric structures. 6,7-Dihydroxy substituted insoflavones when fed to cell cultures are not polymerized by phenolase but are rather converted to glycosides. 
  Reference    (Z. Naturforsch. 29c, 374 [1974]; eingegangen am 1. April 1974) 
  Published    1974 
  Keywords    Chalcones, Isoflavones, Catabolism, Plant Cell Cultures 
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 TEI-XML for    default:Reihe_C/29/ZNC-1974-29c-0374.pdf 
 Identifier    ZNC-1974-29c-0374 
 Volume    29