title: Alkaloid profile of leaves and seeds of Lupinus hintonii C. P. Smith.
abstract: L. hintonii C. P. Smith grows in the Central Highland forests of Mexico at altitudes between 2800 m to 3200 m above see level. Members of the genus Lupinus produce quinolizidine alkaloids as main chemical defensive compounds against herbivores. Surprisingly alkaloid profiles are rather constant within this species, while substantial variation was found when compared to morphologically closely related other taxa. As part of a phytochemical project on Mexican wild lupins, we report on the alkaloid profiles of seeds and leaves of L. hintonii. 19 alkaloids could be identified by capillary GLC-MS. Six major alkaloids occurred in leaves and seeds: 13-hydroxylupanine (28% and 45% respectively), tetrahydrorhombifoline (31% and 23% respectively), angustifoline (2% and 4% respectively), lupanine (7% and 5% respectively), 13alpha-tigloyloxylupanine (19% and 5% respectively) and 4alpha-angeloyl-3beta-hydroxylupanine (9% and 2%). This chemical pattern resembles that of the North American lupin L. floribundus.
authors.affiliation: Centro de Desarrollo de Procuctos Bióticos, Instituto Politécnico Nacional, Morelos, Mexico. kbermud@hotmail.com
authors.forename: Kalina Bermúdez
authors.initials: KB
authors.lastname: Torres
authors.forename: Norma Robledo
authors.initials: NR
authors.lastname: Quintos
authors.forename: Laura L Barrera
authors.initials: LL
authors.lastname: Necha
authors.forename: Michael
authors.initials: M
authors.lastname: Wink
mesh_terms: D000470:Alkaloids / Q000737:chemistry* / Q000302:isolation & purification; D000531:Altitude; D008401:Gas Chromatography-Mass Spectrometry; D008800:Mexico; D018515:Plant Leaves / Q000737:chemistry; D027824:Rosaceae / Q000737:chemistry*; D012639:Seeds / Q000737:chemistry
chemical_list: D000470:Alkaloids