title: Chlorophyll Catabolites in Senescent Leaves of the Plum Tree (Prunus domestica).
abstract: In cold extracts of senescent leaves of the plum tree (Prunus domestica ssp. domestica), six colorless non-fluorescent chlorophyll catabolites (NCCs) were characterized, named Pd-NCCs. In addition, several minor NCC fractions were tentatively classified. The structure of the most polar one of the NCCs, named Pd-NCC-32, featured an unprecedented twofold glycosidation pattern. Three of the NCCs are also functionalized at their 32-position by a glucopyranosyl group. In addition, two of these glycosidated NCCs carry a dihydroxyethyl group at their 18-position. In the polar Pd-NCC-32, the latter group is further glycosidated at the terminal 182-position. Four other major Pd-NCCs and one minor Pd-NCC were identified with five NCCs from higher plants known to belong to the 'epi'-series. In addition, tentative structures were derived for two minor fractions, classified as yellow chlorophyll catabolites, which represented (formal) oxidation products of two of the observed Pd-NCCs. The chlorophyll catabolites in leaves of plum feature the same basic structural pattern as those found in leaves of apple and pear trees.
authors.affiliation: Institute of Organic Chemistry and Center of Molecular Biosciences, University of Innsbruck, Innrain 80/82, AT-6020, Innsbruck.
authors.forename: Theresia
authors.initials: T
authors.lastname: Erhart
authors.affiliation: Laimburg Research Centre for Agriculture and Forestry, Laimburg 6 - Pfatten (Vadena), IT-39040, Auer (Ora), BZ.
authors.forename: Cecilia
authors.initials: C
authors.lastname: Mittelberger
authors.affiliation: Institute of Organic Chemistry and Center of Molecular Biosciences, University of Innsbruck, Innrain 80/82, AT-6020, Innsbruck.
authors.forename: Clemens
authors.initials: C
authors.lastname: Vergeiner
authors.affiliation: Institute of Organic Chemistry and Center of Molecular Biosciences, University of Innsbruck, Innrain 80/82, AT-6020, Innsbruck.
authors.forename: Gerhard
authors.initials: G
authors.lastname: Scherzer
authors.affiliation: Laimburg Research Centre for Agriculture and Forestry, Laimburg 6 - Pfatten (Vadena), IT-39040, Auer (Ora), BZ.
authors.forename: Barbara
authors.initials: B
authors.lastname: Holzner
authors.affiliation: Laimburg Research Centre for Agriculture and Forestry, Laimburg 6 - Pfatten (Vadena), IT-39040, Auer (Ora), BZ.
authors.forename: Peter
authors.initials: P
authors.lastname: Robatscher
authors.affiliation: Laimburg Research Centre for Agriculture and Forestry, Laimburg 6 - Pfatten (Vadena), IT-39040, Auer (Ora), BZ.
authors.forename: Michael
authors.initials: M
authors.lastname: Oberhuber
authors.affiliation: Institute of Organic Chemistry and Center of Molecular Biosciences, University of Innsbruck, Innrain 80/82, AT-6020, Innsbruck.
authors.forename: Bernhard
authors.initials: B
authors.lastname: Kräutler
mesh_terms: D002734:Chlorophyll / Q000031:analogs & derivatives / Q000737:chemistry / Q000378:metabolism*; D008968:Molecular Conformation; D018515:Plant Leaves / Q000737:chemistry / Q000378:metabolism*; D000068242:Prunus domestica / Q000737:chemistry / Q000378:metabolism*
chemical_list: D002734:Chlorophyll
keywords: Chlorophyll; Fruit; Phyllobilins; Plant senescence; Porphyrins