title: Profiling changes in metabolism of isoflavonoids and their conjugates in Lupinus albus treated with biotic elicitor.
abstract: Liquid chromatography with ultraviolet and mass spectrometric detection was applied to monitor changes in profiles of isoflavonoid glycosides and free isoflavonoid aglycones in Lupinus albus L. Four isoflavonoid aglycones, fourteen isoflavonoid glycosides, four flavonol glycosides and flavone glycoside were identified in lupin tissue after LC/ESI/MS analyses. An elicitor preparation from purified yeast cell wall was used to inject the shoots of 3-week old seedlings or to infiltrate the cut lupin leaves. Qualitative and quantitative changes of isoflavonoids were measured at different time points after elicitation. In elicited lupin seedlings increased amounts of prenylated isoflavone aglycones were identified. The concentrations of glycosidic conjugates of isoflavones present in plant tissue were less affected.
authors.affiliation: Institute of Bioorganic Chemistry, Polish Academy of Sciences, Poznań.
authors.forename: P
authors.initials: P
authors.lastname: Bednarek
authors.forename: R
authors.initials: R
authors.lastname: Frański
authors.forename: L
authors.initials: L
authors.lastname: Kerhoas
authors.forename: J
authors.initials: J
authors.lastname: Einhorn
authors.forename: P
authors.initials: P
authors.lastname: Wojtaszek
authors.forename: M
authors.initials: M
authors.lastname: Stobiecki
mesh_terms: D005419:Flavonoids / Q000737:chemistry / Q000378:metabolism*; D013058:Mass Spectrometry / Q000379:methods; D015394:Molecular Structure; D019685:Rosales / Q000378:metabolism*; D013056:Spectrophotometry, Ultraviolet; D015003:Yeasts / Q000737:chemistry
chemical_list: D005419:Flavonoids