Seemann, Andreas and Wallner, Teresa and Poschlod, Peter and Heilmann, Joerg (2010) Variation of Sesquiterpene Lactone Contents in Different Arnica montana Populations: Influence of Ecological Parameters. PLANTA MEDICA, 76 (8). pp. 837-842. ISSN 0032-0943,
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In ten grassland or heathland sites along a geographic (north to south) and climatic gradient in Germany, flowerheads of Arnica montana were collected, and the total content of sesquiterpene lactones (SLs) as well as the content of the detected single compounds were determined. The ratios of helenalin (H)- and corresponding 11 alpha,13-dihydrohelenalin(DH)-type compounds were calculated. All habitats were characterised concerning the climatic and soil conditions, and the values obtained were correlated with SL contents according to univariate statistical analyses. All populations showed very similar and constant ratios of helenalin (1)/11 alpha,13-dihydrohelenalin (2) at around 1.5-2/1 irrespective of different ecological parameters. The ratio of helenalin/11 alpha,13-dihydrohelenalin esters was several fold higher in all samples, but it was nearly identical in every habitat among each other, except for the helenalin/11 alpha,13-dihydrohelenalin 2-methylbutyrate pair (5/11), which showed a constantly twofold higher H/DH ratio. However, the 6-O-isovalerylhelenalin content (6) showed highly significant correlations to climatic factors.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | REPRODUCTIVE SUCCESS; NETHERLANDS; Arnica montana; Asteraceae; sesquiterpene lactones; helenalin; ecosystem; soil; climatic factors |
| Subjects: | 500 Science > 580 Botanical sciences 600 Technology > 615 Pharmacy |
| Divisions: | Biology, Preclinical Medicine > Institut für Pflanzenwissenschaften Chemistry and Pharmacy > Institute of Pharmacy > Pharmaceutical Biology (Prof. Heilmann) |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 03 Aug 2020 05:31 |
| Last Modified: | 03 Aug 2020 05:31 |
| URI: | https://pred.uni-regensburg.de/id/eprint/24798 |
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