Ipomoea tricolor Cav

Two trisaccharide macrolactones have been characterized from the aerial parts of Ipomoea tricolor Cav. (syn. Ipomoea violacea L.) (heavenly blue), namely, tricolorins... 

Anaya AL, Calera MR, Mata R, Pereda-Miranda R, Allelopathic potential of compounds isolated from Ipomoea tricolor Cav. (Convolvulaceae), / Chem Ecol 7 2145-2152, 1990. 

Tricolorin A (46) and G (47) are prototype members of this class of amphiphilic glycoconjugates (24). They constitute the allelochemical principles of Ipomoea tricolor Cav., a plant used in traditional agriculture in Mexico as a cover crop to protect sugar cane against invasive weeds. Their molecular mechanism of action likely involves the inhibition of the FT-ATPase of the plasma membrane, an enzyme that plays a crucial role in plant cell physiology. Moreover, 46 acts as a natural uncoupler of photophosphorylation in spinach chloroplasts. This compound also displays general cytotoxicity against several... 

Chanoclavine-I acid, a unique metabolite of Ipomoea tricolor Cav. (Choong and Shough 1977)... 

Anaya AL, Calera MR, Mata R, Pereda-Miranda R (1990) AUelopathic potential of compounds isolated from Ipomoea tricolor Cav. (Convolvulaceae). J Chem Ecol 16 2145-2152 Anaya AL, Sabourin DJ, Hernandez-Bautista BE, Mendez I (1995) AUelopathic potential of Ipomoea tricolor (Convolvulaceae) in a greenhouse experiment. J Chem Ecol 21 1085-1102... 

Taxonomically, the genus Ipomoea is extremely difficult. The binomial Ipomoea tricolor has already crept into the limited literature that has groyrn up in connection with this second kind, of ololiuqui. Inasmuch as some confusion may result in the use of two names— ipomoea tricolor and I. violacea- we should point out that, after a study ofplant material and the taxonomic history of these binomials, I am in agreement with the American specialist in the Convolvulaceae, H. D. House (House, H. D. The North American species of the genus Ipomoea in Ann. N.Y. Acad. Sci. 18 C19083 259), that both names actually refer to one polymorphic species. In this case, then, the older name is Ipomoea Violacea L. Sp. Pl. (1753) 161, which should be used in preference to its synonym I. tricolor Cav. Ic. Pl. Par. 3 (1794) 5, t. 208. 

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