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. 1990 Jul;16(7):2145-52.
doi: 10.1007/BF01026926.

Allelopathic potential of compounds isolated fromIpomoea tricolor cav. (Convolvulaceae)

A L Anaya  1 , M R Calera, R Mata, R Pereda-Miranda
Affiliations

Allelopathic potential of compounds isolated fromIpomoea tricolor cav. (Convolvulaceae)

A L Anaya et al. J Chem Ecol. 1990 Jul.

Abstract

The allelopathic potential ofI. tricolor, used in traditional agriculture as a weed controller, has been demonstrated by measuring the inhibitory activity of aqueous lixiviates and organic extracts of the plant material on seedling growth ofAmaranthus leucocarpus andEchinochloa crusgalli. Bioactivity-guided fractionation of the most active organic extract led to the isolation of the allelopathic principles, which turned out to be a mixture of glycosides, having jalapinolic acid as the aglycone portion glycosidically linked in the 11 position to an oligosaccharide composed of glucose, rhamnose, and fucose, which also combines with the carboxyl group of the aglycone to form a macrocyclic ester.

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