title: Chlorophyll catabolites in senescent leaves of the lime tree (Tilia cordata).
abstract: In cold extracts of senescent leaves of the Lime tree (Tilia cordata), two colorless nonfluorescent chlorophyll catabolites (NCCs) were identified, named Tc-NCC-1 and Tc-NCC-2, as well as a polar yellow chlorophyll catabolite (YCC), named Tc-YCC. The constitution of the two NCCs was determined by spectroscopic means. In addition, a tentative structure was derived for Tc-YCC. The three chlorophyll degradation products exhibited tetrapyrrolic structures, as are typical of NCCs or YCCs, and turned out to be rather polar, due to a glucopyranosyl group at their 8(2)-position. At their 3-positions, the more polar Tc-NCC-1 carried a 1,2-dihydroxyethyl group and the less polar Tc-NCC-2 a vinyl group. Tc-YCC was identified as the product of an oxidation of Tc-NCC-1.
authors.affiliation: Institute of Organic Chemistry and Center of Molecular Biosciences, University of Innsbruck, Innrain 80/82, A-6020 Innsbruck, Austria
authors.forename: Mathias
authors.initials: M
authors.lastname: Scherl
authors.forename: Thomas
authors.initials: T
authors.lastname: Müller
authors.forename: Bernhard
authors.initials: B
authors.lastname: Kräutler
mesh_terms: D002734:Chlorophyll / Q000737:chemistry / Q000302:isolation & purification / Q000378:metabolism*; D002851:Chromatography, High Pressure Liquid; D010936:Plant Extracts / Q000737:chemistry / Q000302:isolation & purification / Q000378:metabolism; D018515:Plant Leaves / Q000737:chemistry / Q000378:metabolism*; D013057:Spectrum Analysis; D032384:Tilia / Q000737:chemistry / Q000378:metabolism*
chemical_list: D010936:Plant Extracts; D002734:Chlorophyll