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vol.44 número1Antecedentes preliminares sobre cultivo vegetativo de Ahnfeltia plicata (Hudson) Fries, 1836 en canales subantárticos magallánicos del sur de ChileEcología Social del huemul del Parque Nacional Torres Del Paine, Chile índice de autoresíndice de materiabúsqueda de artículos
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Anales del Instituto de la Patagonia

versión On-line ISSN 0718-686X

Resumen

MENDEZ, Fabio et al. Pigment composition of yellow and red variants of Ahnfeltia plicata (Ahnfeltiaceae, Rhodophyta) in the Magellan Region. Anales Instituto Patagonia (Chile) [online]. 2016, vol.44, n.1, pp.15-23. ISSN 0718-686X.  http://dx.doi.org/10.4067/S0718-686X2016000100002.

The Rhodophyta Division is characterized by having representatives of macroalgae with commercial value due to their phycocolloids. Ahnfeltia plicata It is a macroalgae producing agarose and therefore an opportunity for artisanal fisheries and industry. Natural meadows of A. plicata from Skyring Sound (Magellan Region), display yellow and red variants that should adapt eco-physiologically to environmental conditions of their habitats. The concentration of photosynthetic pigments is one of the parameters used to assess the physiological state of the seaweeds. The objective of this study was to determine the concentrations of chlorophyll a and phycobiliproteins, in the yellow and red variants of A. plicata, inhabiting the Skyring Sound. The pigment extraction was performed using liquid nitrogen and acetone at 90%. The red variants have the highest concentrations of photosynthetic pigments such as AFC (287,443 ± 202,045 ug/g MF ± ES); FC (144,780 ± 89,430 ug/g MF ± ES); FE (367,850 ± 219,185 ug/g MF ± ES) and chlorophyll α (Chl a: 61,975 ± 219,185 ug/g MF ± ES). These results suggest adaptation of the red variant of A. plicata to the abiotic environmental conditions, thus allowing a possible greater absorptivity of light energy.

Palabras clave : Rhodophyta; color variants; pigments; Sub-Antarctic region.

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