METABOLISM OF IRIDALS IN PLANT-CELL CULTURES OF IRIS PALLIDA

Citation
Fj. Marner et al., METABOLISM OF IRIDALS IN PLANT-CELL CULTURES OF IRIS PALLIDA, Phytochemistry, 33(3), 1993, pp. 573-579
Citations number
12
Categorie Soggetti
Plant Sciences
Journal title
ISSN journal
00319422
Volume
33
Issue
3
Year of publication
1993
Pages
573 - 579
Database
ISI
SICI code
0031-9422(1993)33:3<573:MOIIPC>2.0.ZU;2-#
Abstract
The metabolism of iridals, unusual triterpenoids found in sword lilies , was studied in a cell culture of Iris pallida. By incubation of the cells with radioactively labelled and unlabelled compounds the biogene tic pathway from iridal, the parent compound of the family, to the spi roiridals was shown to lead via 26-hydroxyiridal, which is dehydrogena ted to form the corresponding 26-hydroxytriene. A dehydration of the 1 6- or 17-hydroxyiridals, respectively, was not observed. All triterpen oids are readily taken up by the cells from the medium and are esterif ied at C3, predominantly with medium-chain fatty acids.