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Variations of chemical composition and energy content in natural and genetically defined cultivars of Macrocystis from Chile

Variations of chemical composition and energy content in natural and genetically defined cultivars of Macrocystis from Chile

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WESTERMEIER, Renato, Pedro MURÚA, David J. PATIÑO, Liliana MUÑOZ, Ailin RUIZ, Dieter G. MÜLLER, 2011. Variations of chemical composition and energy content in natural and genetically defined cultivars of Macrocystis from Chile. In: Journal of Applied Phycology. 24(5), pp. 1191-1201. ISSN 0921-8971. eISSN 1573-5176

@article{Westermeier2011Varia-23620, title={Variations of chemical composition and energy content in natural and genetically defined cultivars of Macrocystis from Chile}, year={2011}, doi={10.1007/s10811-011-9752-6}, number={5}, volume={24}, issn={0921-8971}, journal={Journal of Applied Phycology}, pages={1191--1201}, author={Westermeier, Renato and Murúa, Pedro and Patiño, David J. and Muñoz, Liliana and Ruiz, Ailin and Müller, Dieter G.} }

deposit-license Variations of chemical composition and energy content in natural and genetically defined cultivars of Macrocystis from Chile 2013-06-14T11:15:37Z Journal of Applied Phycology ; 24 (2012), 5. - S. 1191-1201 Seasonal and intra-thallus variations of energy content and chemical composition were assessed in an intertidal population of Macrocystis in southern Chile. Phylloid protein and lipid from cultured material were compared with seasonal variation in native Macrocystis. Furthermore, populations in northern and southern Chile and Falkland Islands were compared with various intra-/inter-cultivar genotypes of Chilean Macrocystis. Energetic values did not show seasonal or intra-thallus variations, with the exception of pneumatocysts, which had high levels of ash (49.9% DW) and low values of total energy (8.3% DW). Seasonal patterns were detected in protein and carbohydrate composition, with opposite trends. Likewise, holdfasts contained high amounts of protein (21.0% DW), and phylloids were high in soluble carbohydrates (4.5% DW). Lipids instead showed two peaks per year in an intertidal population and reached up to 0.4% DW. Alginic acid was the major organic compound in intertidal Macrocystis (46.8% DW), with differences on seasonal and intra-thallus levels. Mannitol content, in contrast, was erratic and lower than in other Laminariales (<5% DW). In general, protein and lipid content in our cultivars were 20% higher than in natural populations. Our experimental results indicate the possibility to manipulate the chemical composition of Macrocystis thalli through inter-/intra-specific crosses. This will be a basis, upon which selected genotypes can open new perspectives to Macrocystis mariculture industries in Chile. Muñoz, Liliana Muñoz, Liliana Ruiz, Ailin Patiño, David J. eng Patiño, David J. Westermeier, Renato 2013-06-14T11:15:37Z Müller, Dieter G. Müller, Dieter G. Murúa, Pedro Westermeier, Renato 2011 Murúa, Pedro Ruiz, Ailin

Dateiabrufe seit 01.10.2014 (Informationen über die Zugriffsstatistik)

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