ibclogo XVI International Botanical Congess


Abstract Number: 3862
Poster No. = 1578


ECOLOGICAL SIGNIFICANCE OF PIGMENT VARIATIONS IN MISTLETOES


*Leonidas Zambrano, *Nelson Rojas and **Bernardo Ramírez, *Departamento de Biología, Universidad del Cauca,Colombia **Departamento de Biología, Universidad de Nariño, Colombia


The plant pigments of mistletoes were quantified and flavonoids were isolated by using 2D paper chromatography. The higher concentration of chlorophyll corresponds to Dendrophthora clavata (Benth) Urb. and Orycthanthus spicatus (Jack). Cuscuta grandiflora (H.B.K) showed the minimum value of chlorophyll. Several flavonoids were encountered in plants localized between 1500 m and 3200 m in Phoradendron trianae (Eichler) and Orycthanthus spicatus (Jack). Eichler. Viscaceae shows the presence of acacetin and artemetin and thymonin in Viscaceae and Loranthaceae. In conclusion chlorophyll and carotenoids are correlated with plants that receive a higher irradiance and flavonoids that depend on irradiance, altitude and location on the host.


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