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'Biosynthesis' in keywords Facet   Publication Year 1995  [X]
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1Author    Gregor Benning, Wolfgang BarzRequires cookie*
 Title    Accumulation and Biosynthesis of Solanapyrone Phytotoxins by Ascochyta rabiei  
 Abstract    The biosynthesis of the phytotoxins solanapyrone A , B and C produced by the phytopatho-genic fungus Ascochyta rabiei has been investigated. To optimize feeding conditons for the tracer experiments the growth of the fungus and the accumulation of the toxins in submers culture were determined. The accumulation kinetics revealed that formation of the toxins occurs in the stationary phase of the growth indicating that synthesis of solanapyrones follows a typical pattern of secondary metabolism. Incorporation experiments with sodium [1-14C]-and [2-13C]acetate were performed and the NM R-spectroscopically determined labelling pattern of the 13C-enriched solanapyrone A compound confirmed that the carbon skeleton of this compound is formed via the polyketide pathway. The biosynthetic route to solana­ pyrone B is discussed. 
  Reference    Z. Naturforsch. 50c, 181 (1995); received January 9 1995 
  Published    1995 
  Keywords    Biosynthesis, Solanapyrones, Polyketide Phytotoxin, Ascochyta rabiei 
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 TEI-XML for    default:Reihe_C/50/ZNC-1995-50c-0181.pdf 
 Identifier    ZNC-1995-50c-0181 
 Volume    50