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Chlorophyllkatabolismus: Abbau und Synthesen

English title Chlorophyll catabolism: Degradation and Synthesis
Applicant Engel Norbert
Number 116331
Funding scheme Project funding (Div. I-III)
Research institution Département de Chimie Université de Fribourg
Institution of higher education University of Fribourg - FR
Main discipline Physical Chemistry
Start/End 01.04.2007 - 30.04.2008
Approved amount 35'259.00
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Keywords (14)

Chlorophyll Degradation; catabolism; maleimides; metabolism; Plants; Chlorophyll; catabolites; bile pigments; degradation; methylmaleimides; foliage; leaves; autumn; fall

Lay Summary (English)

Lay summary
Both, chlorophylls and hemes are molecules with porphyrinic structure and are paramount to life on earth. About 10 million tones of chlorophylls are annually degraded and newly synthesized, an impressively visible phenomenon in autumn and spring time. In algae and higher plants the chlorophyll macrocycle is sequentially degraded into a series of bile pigment like tetrapyrroles by an oxydative ring opening processes.
The structures, mechanism of formation and chemical reactions of the chlorophyll catabolites are under investigation. The goals of this research project are the elucidation of the chlorophyll catabolism in higher plants. This includes the isolation and identification of unknown chlorophyll catabolites from autumnal leaves and the study of the degradation products of the catabolites including the synthesis of glycosylated maleimide(s) recently found in wine and leaves of the Mangostintree. These compounds are considered as degradation products of chlorophyll catabolites.
Direct link to Lay Summary Last update: 21.02.2013

Responsible applicant and co-applicants


Name Institute

Associated projects

Number Title Start Funding scheme
105526 Abbau der Chlorophylle: Oxidative Spaltungs Reaktionen 01.10.2004 Project funding (Div. I-III)