PARTE UTILIZADA= Used part: Partes aéreas.

ACCIÓN FARMACOLÓGICA= Pharmacological action: Hepático.

COMPOSICIÓN QUÍMICA= Chemical composition: Partially purified catechol O-methyltransferase from pampas grass (Cortaderia selloana) catalyses the methylations of substrates at both their meta and para positions. This capability was shown, by heat treatments, to arise from a less stable m-O-methyl-transferring activity and a more stable p-O-methyltransferring activity, tested against protocatechuic acid. When acting upon caffeic acid, the preparation catalyses a reaction of solely m-O-methyltransfer (in contrast to the mixed methylation of this substrate exhibited by rat liver catechol O-methyltransferase). A small degree of m-O-methylation of monophenolic substrates also occurs. © 1974.

ZONA GEOGRAFICA= Geografical zone: Brasil, Paraguay, Uruguay y E de Argentina. 

1) TOURSARKISSIAN, Martín. Plantas medicinales de Argentina : sus nombres botánicos, vulgares, usos y distribución geográfica. Buenos Aires : Hemisferio Sur, 1980, p.57.

2) FINKLE, B.J., KELLY, S.H. Catechol O-methyltransferases in pampas grass: differentiation of m- and p-methylating activities. Phytochemistry .1974 , vol.13, nº9, p.1719-1725.