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1Author    Ulrich Lappe, Wolfgang BarzRequires cookie*
 Title    Degradation of Pisatin by Fungi of the Genus F u sa riu m  
 Abstract    Fifteen strains of Fusarium previously shown to degrade flavonoids and isoflavonoids were investigated for pisatin degradation. Fusarium anguioides and Fusarium avenaceum converted the phytoalexin (1) to the nontoxic 3,6a-dihy-droxy-8,9-methylenedioxypterocarpan (2). 
  Reference    Z. Naturforsch. 33c, 301 (1978); received February 21 1978 
  Published    1978 
  Keywords    Phytoalexin, Pisatin, Fusarium, Degradation, Demethylation 
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 TEI-XML for    default:Reihe_C/33/ZNC-1978-33c-0301_n.pdf 
 Identifier    ZNC-1978-33c-0301_n 
 Volume    33 
2Author    Klaus-MichaelW. Eltring, W. Olfgang BarzRequires cookie*
 Title    Degradation of 3,9-Dimethoxypterocarpan and Medicarpin by Fusarium proliferatum  
 Abstract    The degradation o f 3,9-dimethoxypterocarpan was investigated in selected strains of Fusarium. Fusarium proliferatum (/'. e. Gibberella fujikuroi (SAW)WR) degrades this substrate via 3-meth-oxy-9-hydroxypterocarpan, 3,9-dihydroxypterocarpan and 2',4',7-trihydroxyisoflavan. During degradation by this organism medicarpin is first demethylated to 3,9-dihydroxypterocarpan. 
  Reference    Z. Naturforsch. 35c, 399—405 (1980); received March 10 1980 
  Published    1980 
  Keywords    Phytoalexins, 3, 9-Dimethoxypterocarpan, Medicarpin, Fusarium, Degradation, Demethylation 
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 TEI-XML for    default:Reihe_C/35/ZNC-1980-35c-0399.pdf 
 Identifier    ZNC-1980-35c-0399 
 Volume    35 
3Author    W.-U Mutert, H. Lütfring, W. Barz, D. StrackRequires cookie*
 Title    of the Genus Fusarium  
 Abstract    Among various Fusarium strains tested Gibberella fuji-kuroi (SAW) WR was shown to be a high producer o f the phytotoxin fusaric acid. 
  Reference    Z. Naturforsch. 36c, 338 (1981); received January 19 1981 
  Published    1981 
  Keywords    Fusaric Acid, Fusarium, Gibberella, Biosynthesis, High Performance Liquid Chromatography 
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 TEI-XML for    default:Reihe_C/36/ZNC-1981-36c-0338_n.pdf 
 Identifier    ZNC-1981-36c-0338_n 
 Volume    36 
4Author    K.-M Weltring, K. Mackenbrock, W. BarzRequires cookie*
 Title    Demethylation, Methylation and 3'-Hydroxylation of Isoflavones bv Fusarium Fungi  
 Abstract    Several introductionary reactions of isoflavone metabolism by Fusarium fungi are reported. Fu­ sarium avenaceum hydroxylates formononetin in the 3'-position yielding 3',7-dihydroxy-4'-me-thoxyisoflavone (calycosin). 3'-Hydroxylation o f biochanin A to 3/,5,7-trihydroxy-4/-methoxyiso-flavone (pratensein) has been observed with Fusarium oxysporum f. sp. lycopersici and Fusarium oxysporum f. sp. I ini. Depending on the growth medium Fusarium proliferatum metabolises for­ mononetin either by 7-O-methylation or by 4'-0-demethylation. 
  Reference    Z. Naturforsch. 37c, 570—574 (1982); received March 29 1982 
  Published    1982 
  Keywords    Isoflavones, Fusarium, Methylation, Demethylation, 3'-Hydroxylation, Metabolism 
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 TEI-XML for    default:Reihe_C/37/ZNC-1982-37c-0570.pdf 
 Identifier    ZNC-1982-37c-0570 
 Volume    37 
5Author    NigelC P Baldwin, BarrieW. Bycroft, PaulM. Dewick, John Gilbert, Ian HoldenRequires cookie*
 Title    Biosynthesis of Trichothecene My cotoxins in Fusarium culmorum Cultures  
 Abstract    A high yielding production of the trichothecene mycotoxin 3-acetyldeoxynivalenol (3-AcDON) in cultures of Fusarium culmorum is described. By supplying [14C]acetate, 14C-labelled 3-AcDON suitable for further metabolic studies has been obtained. The pattern of labelling has been ascertained by using 13C-labelled acetate precursors, and is in line with established biosynthetic data. A second trichothecene produced in significant amounts by F. culmorum has been identified as 3a, 15-diacetoxy-7a, 8a-dihydroxy-12, 13-epoxytrichothec-9-ene (7a, 8 a-dihydroxycalonec-trin). 
  Reference    Z. Naturforsch. 40c, 514—518 (1985); received May 8 1985 
  Published    1985 
  Keywords    Mycotoxin, Trichothecene, Fusarium, Biosynthesis, 3-Acetyldeoxynivalenol 
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 TEI-XML for    default:Reihe_C/40/ZNC-1985-40c-0514.pdf 
 Identifier    ZNC-1985-40c-0514 
 Volume    40 
6Author    NigelC P Baldwin, BarneW. Bycroft, PaulM. Dewick, John GilbertRequires cookie*
 Title    Metabolie Conversions of Trichothecene Mycotoxins: Biotransformation of 3-AcetyldeoxynivaIenoI into Fusarenon-X  
 Abstract    The trichothecene mycotoxin 3-acetyldeoxynivalenol was transformed by cultures of the diace-toxyscirpenol producer Fusarium sp. strain C37410-90 into four compounds, identified as deoxy-nivalenol, 15-acetyldeoxynivalenol, 3,15-diacetyldeoxynivalenol and fusarenon-X. The major transformations are the result of specific esterification and de-esterification processes, but the production of fusarenon-X involves in addition a novel 4ß-hydroxylation of the trichothecene ring system itself. 
  Reference    Z. Naturforsch. 41c, 845 (1986); received April 21 1986 
  Published    1986 
  Keywords    Mycotoxin, Trichothecene, Fusarium, Biotransformation, 3-Acetyldeoxynivalenol 
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 TEI-XML for    default:Reihe_C/41/ZNC-1986-41c-0845.pdf 
 Identifier    ZNC-1986-41c-0845 
 Volume    41