Mechanism for iridane skeleton formation in the biosynthesis of secologanin and indole alkaloids in Lonicera tatarica, Catharanthus roseus and suspension cultures of Rauwolfia serpentina
1986; Elsevier BV; Volume: 25; Issue: 4 Linguagem: Inglês
10.1016/0031-9422(86)80012-7
ISSN1873-3700
AutoresShinichi Uesato, SATOKO KANOMI, Akira Iida, Hiroyuki Inouye, Meinhart H. Zenk,
Tópico(s)Phytochemistry and Biological Activities
ResumoFeeding experiments of various 3H-, 2H- and 13C-labelled compounds to plants of Lonicera tatarica, and Catharanthus roseus (hybrid) and to suspension cultures of Rauwolfia serpentina corroborated that secologanin, vindoline, ajmaline and vomilenine in these plants and cultured cells are biosynthesized via cyclization of 10-oxogeranial/10-oxoneral to iridodial in the same way as secologanin and vindoline in plants of L. morrowii and C. roseus. Therefore, this cyclization mechanism seems to be common in plants containing secoiridoids and indole alkaloids.
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