COMPARATIVE-ANALYSIS OF TAXONOMIC MARKERS IN CHROMATOGRAPHIC PROFILES OF LEAVES FROM SOME ARBORESCENT SPECIES OF THE GENUS IPOMOEA (CONVOLVULACEAE)

Abstract

Chromatographic profiles of alkaloids, kauranoic glucosides and glycoresins were obtained from the leaves of: Ipomoea murucoides Roem. et Schult., I. pauciflora Mart. et Gal., I. arborescens Hum. et Bonpl., I. wolcottiana Rose and I. carnea Jacq. The presence of the taxonomic markers, established for the 3 groups of secondary metabolites, was determined in the profiles and the index of similitude was calculated. There is a 100% similitude in the profiles of the markers in I. pauciflora and I. wolcottiana. For I. murucoides the index of similitude was 83%, for I. carnea, 58% and for I. arborescens, 47%.