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1985 (1)
1Author    JohnL. Ingham, Satoshi TaharaRequires cookie*
 Title    Isoneorautenol and Other Pterocarpan Phytoalexins from Calopogonium mucunoides  
 Abstract    Following inoculation with the fungus H elm inthosporium carbonum , excised leaflets o f the tropical papilionate legum e C alopogonium m ucunoides have been found to produce isoneorautenol, a new dim ethylpyrano-substituted isoflavonoid (pterocarpan) phytoalexin. This com pound accumulates together with dem ethylm edicarpin, neodu nol, tuberosin, sophorap-terocarpan A , and a sixth highly antifungal isoflavonoid (calopocarpin) characterised as 3,9-dihydroxy-2-(3,3-dim ethylallyl)pterocarpan. Chrom atographic and spectroscopic exam ination of 'hom oedudiol' (a pterocarpan from N eorautanenia edulis roots previously considered to possess the structure now assigned to calopocarpin) has shown that in reality this substance is identical with sophorapterocarpan A . The system atic relationship o f C alopogonium to other genera within the legum e tribe P haseoleae is briefly discussed. 
  Reference    Z. Naturforsch. 40c, 482—489 (1985); received March 16 1985 
  Published    1985 
  Keywords    Legum inosae, Calopogonium, Isoflavonoids, ( —) —Pterocarpans, Phytoalexins 
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 TEI-XML for    default:Reihe_C/40/ZNC-1985-40c-0482.pdf 
 Identifier    ZNC-1985-40c-0482 
 Volume    40