Abstract:
:In leaves of CONVALLARIA MAJALIS L. the cardenolide content is known to decrease towards the end of the vegetation period. However, at this stage the rate of biosynthesis is even higher than at the onset of flowering. This has been revealed by photosynthesis experiments in the presence of (14)CO (2) and the subsequent isolation of 15 labelled cardenolides using PC, TLC and HPLC. IN VITRO and IN VIVO experiments showed that the first step in the degradative pathway of convalloside is deglucosidation yielding convallatoxin, followed by conversion into several yet unidentified degradation products other than known cardenolides of C. MAJALIS. This indicates that the cardenolides of C. MAJALIS are subjected to a turnover at least towards the end of the vegetation period.
journal_name
Planta Medjournal_title
Planta medicaauthors
Schrutka-Rechtenstamm R,Kopp B,Löffelhardt Wdoi
10.1055/s-2007-969527subject
Has Abstractpub_date
1985-10-01 00:00:00pages
387-90issue
5eissn
0032-0943issn
1439-0221journal_volume
51pub_type
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