ISSN:
1573-1561
Keywords:
Verbascum thapsus
;
weeds
;
iridoid glycosides
;
phytotoxicity
;
barley
;
Hordeum vulgare
;
germination
;
root inhibition
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Chemistry and Pharmacology
Notes:
Abstract The iridoid glucosides lateroside 1, harpagoside 2, ajugol 3, and aucubin 4 were isolated from an ethanolic extract of the roots of the weed Verbascum thapsus that exhibits antigermination activity on seeds of barley (Hordeum vulgare). Bioassays indicated that at 3 mM concentration, compounds 1, 2, and 4 showed moderate inhibition of seed germination. These compounds also reduced root length when they were assayed on pregerminated seeds at 1 mM to 0.001 mM concentration range. Of all compounds tested, aucubin 4 was the most active against root elongation. Compound 3 showed no activity in the bioassays.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1022338118561
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