Resumen

ALMARAZ-ABARCA, Norma et al. FENOLES DEL POLEN DE STENOCACTUS, ECHINOCEREUS Y MAMMILLARIA (CACTACEAE). Polibotánica [online]. 2007, n.23, pp.37-55. ISSN 1405-2768.

A variable number of phenolics have been detected in pollen of the following species of Cactaceae: Stenocactus multicostatus subsp. zacatecasensis, Echinocereus enneacanthus, Echinocereus pectinatus, Echinocereus triglochidiatus var. coccineus and Mammillaria heyderi sensu lato. The phenolics were characterized by means of chromatographic (HPLC) and spectrometric (UV) properties. The most abundant flavonols were 3-O-glycoside derivatives of kaempferol and 3-Oglycoside derivatives of quercetin. 3-Oglycoside derivatives of herbacetin were found in lower abundance. Each species had a particular pollen phenolic profile. Intrapopulation variability in phenolic profiles was detected in all cases. The phenolic composition of these species is reported for the first time.

Palabras llave : Stenocactus; Echinocereus; Mammillaria; pollen phenols.

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