Short-term effects of increasing co2, nitrate and temperature on three mediterranean macroalgae: biochemical composition ...

Short-term effects of increasing pCO(2); 380 ppm (LC) vs. 700 ppm (HC); at different nitrogen levels; 5 mu M nitrate (LN) vs. 50 mu M (HN); on the contents of protein, mycosporine-like amino acids (MAAs), phenolic compounds and total fatty acids, antioxidant activity, calcification and C: N ratios w...

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Bibliographic Details
Main Authors: Figueroa, FL, Bonomi Barufi, J, Malta, EJ, Conde-Álvarez, R, Nitschke, U, Arenas, F, Mata, M, Connan, S, Abreu, MH, Marquardt, R, Vaz-Pinto, F, Konotchick, T, Celis-Plá, PSM, Hermoso, M, Ordoñez, G, Ruiz, E, Flores, P, De Los Ríos, J, Kirke, D, Chow, F, Nassar, CAG, Robledo, D, Pérez-Ruzafa, Á, Bañares-España, E, Altamirano, M, Jiménez, C, Korbee, N, Bischof, K, Stengel, DB
Format: Article in Journal/Newspaper
Language:unknown
Published: Inter-Research Science Center 2014
Subjects:
acidification
climate change
cystoseira tamariscifolia
ellisolandia elongata
nitrate
short-term experiment
temperature
ulva rigida
solar uv-radiation
alga dasycladus-vermicularis
ocean acidification
southern spain
climate-change
elevated co2
intertidal macroalgae
marine macroalgae
inorganic carbon
ulva-rigida
Ocean acidification
Online Access:https://dx.doi.org/10.13025/13438
https://researchrepository.universityofgalway.ie/handle/10379/11463
Description
Summary:Short-term effects of increasing pCO(2); 380 ppm (LC) vs. 700 ppm (HC); at different nitrogen levels; 5 mu M nitrate (LN) vs. 50 mu M (HN); on the contents of protein, mycosporine-like amino acids (MAAs), phenolic compounds and total fatty acids, antioxidant activity, calcification and C: N ratios were analyzed in 3 eulittoral Mediterranean macroalgae with different bio-optical characteristics and carbon assimilation efficiencies: Cystoseira tamariscifolia (Heterokontophyta), Ulva rigida (Chlorophyta) and Ellisolandia elongata (Rhodophyta). After acclimation to different pCO(2) and nitrogen conditions for 6 d, the algae were subjected to a 4 degrees C temperature increase for 3 d. Increasing temperature and pCO(2) produced alterations in the biochemical composition of the 3 macroalgae. Short-term variations of protein levels were observed in U. rigida, with clearly decreased values in the HCLN treatment. In C. tamariscifolia, protein decreased after the temperature increase but only under LC. The interaction ...

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