caa a22 4500 467919216 CHVBK 20180406152911.0 cr unu---uuuuu 170328e20060601xx s 000 0 eng 10.1007/s00706-006-0473-5 doi (NATIONALLICENCE)springer-10.1007/s00706-006-0473-5 Chlorophyll Breakdown in Maize: On the Structure of Two Nonfluorescent Chlorophyll Catabolites [Elektronische Daten] [Joachim Berghold, Thomas Müller, Markus Ulrich, Stefan Hörtensteiner, Bernhard Kräutler] Summary.: In extracts of senescent leaves of the maize plant Zea mays, two colorless compounds with UV/Vis-characteristics of nonfluorescent chlorophyll catabolites (NCCs) were detected and tentatively named Zm-NCCs. The constitution of the two polar Zm-NCCs was determined by spectroscopic means, which confirmed both of these tetrapyrroles to have the basic ligand structure typical of the NCCs from (other) senescent higher plants. In the less polar catabolite, named Zm-NCC-2, the core structure was conjugated at the 82-position with a glucopyranose unit. Zm-NCC-2 had the same constitution as Nr-NCC-2, an NCC from tobacco (Nicotiana rustica). Indeed, the two NCCs were identified (further) based on their HPL-chromatographic and NMR-spectroscopic properties. The more polar NCC from maize, Zm-NCC-1, differed from Zm-NCC-2 by carrying a dihydroxyethyl side chain instead of a vinyl group at the 3-position. In earlier work on polar NCCs, only separate glucopyranosyl- and dihydroxyethyl-functionalities were detected. Zm-NCC-1 thus is a new constitutional variant of the structures of NCCs from senescent higher plants. Springer-Verlag, 2006 Keywords. Chlorophyll nationallicence Chlorophyll catabolism nationallicence Mass spectrometry nationallicence NMR-spectroscopy nationallicence Tetrapyrrole nationallicence Berghold Joachim Institute of Organic Chemistry and Center of Molecular Biosciences, Leopold-Franzens-Universität Innsbruck, Innsbruck, Austria aut Müller Thomas Institute of Organic Chemistry and Center of Molecular Biosciences, Leopold-Franzens-Universität Innsbruck, Innsbruck, Austria aut Ulrich Markus Institute of Organic Chemistry and Center of Molecular Biosciences, Leopold-Franzens-Universität Innsbruck, Innsbruck, Austria aut Hörtensteiner Stefan Institute of Plant Sciences, Universität Bern, Bern, Switzerland aut Kräutler Bernhard Institute of Organic Chemistry and Center of Molecular Biosciences, Leopold-Franzens-Universität Innsbruck, Innsbruck, Austria aut Monatshefte für Chemie / Chemical Monthly Springer-Verlag 137/6(2006-06-01), 751-763 0026-9247 137:6<751 2006 137 706 https://doi.org/10.1007/s00706-006-0473-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00706-006-0473-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Berghold Joachim Institute of Organic Chemistry and Center of Molecular Biosciences, Leopold-Franzens-Universität Innsbruck, Innsbruck, Austria aut NATIONALLICENCE 700 1- Müller Thomas Institute of Organic Chemistry and Center of Molecular Biosciences, Leopold-Franzens-Universität Innsbruck, Innsbruck, Austria aut NATIONALLICENCE 700 1- Ulrich Markus Institute of Organic Chemistry and Center of Molecular Biosciences, Leopold-Franzens-Universität Innsbruck, Innsbruck, Austria aut NATIONALLICENCE 700 1- Hörtensteiner Stefan Institute of Plant Sciences, Universität Bern, Bern, Switzerland aut NATIONALLICENCE 700 1- Kräutler Bernhard Institute of Organic Chemistry and Center of Molecular Biosciences, Leopold-Franzens-Universität Innsbruck, Innsbruck, Austria aut NATIONALLICENCE 773 0- Monatshefte für Chemie / Chemical Monthly Springer-Verlag 137/6(2006-06-01), 751-763 0026-9247 137:6<751 2006 137 706 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer