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'Phenylacetic acids' in keywords
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1982 (1)
1977 (1)
1Author    Ulrike Willeke, Wolfgang BarzRequires cookie*
 Title    Degradation of the Isoflavone Biochanin A by Fusarium javanicum  
 Abstract    After a lag-phase of 1 h a mycelial suspension of Fusarium javanicum completely degraded 5,7-dihydroxy-4'-methoxyisoflavone (biochanin A) to a series o f transiently accumulating catabolites. The compounds were elucidated by spectroscopic techniques and are arranged in the first known degradative pathway for an isoflavone: biochanin A -* dihydrobiochanin A -* 3-(/?-methoxyphenyl)-4,6-diketo-5,6-dihydro-4H-pyran -* />-methoxyphenylacetic acid -*■ p-hy-droxyphenylacetic acid -*■ 3,4-dihydroxyphenylacetic acid -*■ C 0 2. The carbon atoms o f bio­ chanin A not accounted for by this sequence are discussed in relation to microbial flavonoid pathways. 
  Reference    Z. Naturforsch. 37c, 861—8 (1982); received May 28 1982 
  Published    1982 
  Keywords    Isoflavone, Biochanin A, Dihydrobiochanin A, Phenylacetic acids, Fusarium javanicum 
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 TEI-XML for    default:Reihe_C/37/ZNC-1982-37c-0861.pdf 
 Identifier    ZNC-1982-37c-0861 
 Volume    37 
2Author    W. LöffelhardtRequires cookie*
 Title    The Biosynthesis of Phenylacetic Acids in the Blue-Green Alga Anacystis nidulans: Evidence for the Involvement of a Thylakoid-Bound L-Amino Acid Oxidase  
 Abstract    Phenylacetic acid and p-hydroxyphenylacetic acid are formed upon incubation of photosynthetic membranes from the prokaryotic alga Anacystis nidulans with L-phenylalanine and L-tyrosine, respectively. The corresponding phenylpyruvic acids act as intermediates as shown by trapping them as the stable oximino acids. The first step in this reaction sequence appears to be catalyzed by a thylakoid-bound L-amino acid oxidase. Already existing evidence concerning phenylacetic acid formation at thylakoid membranes of higher plants via an L-amino acid oxidase and the results obtained with A. nidulans give another example of aromatic amino acids between chloroplasts and 
  Reference    (Z. Naturforsch. 32c, 345—350 [1977]; received February 14 1977) 
  Published    1977 
  Keywords    Membrane-Bound Enzymes, Anacystis nidulans, Thylakoids, Phenylacetic Acids, L-Amino Acid Oxidase 
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 TEI-XML for    default:Reihe_C/32/ZNC-1977-32c-0345.pdf 
 Identifier    ZNC-1977-32c-0345 
 Volume    32