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'Stizolobium hassjoo' in keywords
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1981 (1)
1976 (1)
1Author    Koshi Saito, Atsushi Komamine, Siro SenohRequires cookie*
 Title    Further Studies on the Biosynthesis of Stizolobinic Acid and Stizolobic Acid in the Etiolated Seedlings of Stizolobium hassjoo  
 Abstract    Incorporation of doubly labelled tyrosine into stizolobinic acid and stizolobic acid by the etio­ lated seedlings of Stizolobium hassjoo was studied. The retention of tritium activity in stizolobinic acid was 55%, while that in stizolobic acid was only 4.4% in average. The results strongly suggest that the heterocyclic rings of these two amino acids may be derived from 3,4-dihydroxyphenyl-alanine (DOPA) by extradiol cleavage of the aromatic ring. 
  Reference    (Z. Naturforsch. 31c, 15 [1976]; received September 1 1975) 
  Published    1976 
  Keywords    Stizolobium hassjoo, Biosynthesis, Stizolobinic Acid, Stizolobic Acid, 3, 4-Dihydroxyphenylalanine 
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 TEI-XML for    default:Reihe_C/31/ZNC-1976-31c-0015.pdf 
 Identifier    ZNC-1976-31c-0015 
 Volume    31 
2Author    Hamako Obata-Sasamoto, Atsushi Komamine, Koshi SaitoRequires cookie*
 Title    Biosynthesis of 3-Carboxy-6,7-dihydroxy-l, 2,3,4-tetra- hydroisoquinoline and l-Methyl-3-carboxy-6,7-dihydroxy-l, 2,3,4- tetrahydroisoquinoline in a Callus Culture of Stizolobium hassjoo  
 Abstract    dl-[/?-14C] 3,4-Dihydroxyphenylalanine (DOPA), [2-14C]pyruvate and [2-14C]acetate were ad­ ministered to a callus culture o f S. hassjoo and incorporation of the radioactivity into 3-carboxy-6,7-dihydroxy-1,2,3,4-tetrahydroisoquinoline (I) and l-methyl-3-carboxy-6,7-dihydroxy-1,2,3,4-tetrahydroisoquinoline (II) was examined. Incorporation of radioactivity from labelled DOPA into I and II, and from acetate into I were observed, while that from pyruvate into I and II and from acetate into II were hardly detected. The biosynthetic pathways o f I and D were discussed. 
  Reference    Z. Naturforsch. 36c, 921 (1981); received August 21 1981 
  Published    1981 
  Keywords    Stizolobium hassjoo, Biosynthesis, 3-Carboxy-6, 7-dihydroxy-1, 2, 3, 4-tetrahydroisoquinoline, 1 -Methyl-3-carboxy-6, 7-dihydroxy-1, 2, 3, 4-tetrahydroisoquinoline, Callus Culture 
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 TEI-XML for    default:Reihe_C/36/ZNC-1981-36c-0921.pdf 
 Identifier    ZNC-1981-36c-0921 
 Volume    36