| | 1 | Author
| Koshi Saito, Atsushi Komamine, Siro Senoh | Requires 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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| Find | | | DEBUG INFO
| | | | | TEI-XML for
| default:Reihe_C/31/ZNC-1976-31c-0015.pdf | | | | Identifier
| ZNC-1976-31c-0015 | | | | Volume
| 31 | |
| 2 | Author
| Hamako Obata-Sasamoto, Atsushi Komamine, Koshi Saito | Requires 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 | | | |
Similar Items
| Find | | | DEBUG INFO
| | | | | TEI-XML for
| default:Reihe_C/36/ZNC-1981-36c-0921.pdf | | | | Identifier
| ZNC-1981-36c-0921 | | | | Volume
| 36 | |
|
