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dc.contributor.authorLópez-Figueroa, Félix 
dc.contributor.authorÁlvarez-Gómez, Félix
dc.contributor.authorBonomi-Barufi, José
dc.contributor.authorVega Sánchez, Julia
dc.contributor.authorMassocato, F.
dc.contributor.authorGómez-Pinchetti, J. L.
dc.contributor.authorKorbee-Peinado, Nathalie 
dc.date.accessioned2023-04-24T07:25:22Z
dc.date.available2023-04-24T07:25:22Z
dc.date.created2023-04-20
dc.date.issued2022-11-08
dc.identifier.citationFigueroa, F. L., Álvarez-Gómez, F., Bonomi-Barufi, J., Vega, J., Massocato, T. F., Gómez-Pinchetti, J. L., & Korbee, N. (2022). Interactive effects of solar radiation and inorganic nutrients on biofiltration, biomass production, photosynthetic activity and the accumulation of bioactive compounds in Gracilaria cornea (Rhodophyta). Algal Research, 68, 102890.es_ES
dc.identifier.urihttps://hdl.handle.net/10630/26371
dc.description.abstractInteractive effects of solar radiation and inorganic nitrogen and phosphate on biofiltration capacity, biomass production, photosynthetic activity and the accumulation of bio-active compounds were studied in the red alga Gracilaria cornea grown in tanks with a seawater open-flow system during 35 days. Two light conditions were utilized: outdoor (O), full solar natural radiation, and indoor, inside of a greenhouse (G) where UV-B radiation was cut-off and part of the UV-A radiation was filtered. Two inorganic nitrogen and phosphate concentrations were used: High nutrients (HN; 100–200μM of NH4+ and 20μM of KHPO4) and Low nutrients (LN; 10–20μM of NH4+ and 1μM of KHPO4). Growth and biomass productivity were related to the daily integrated electron transport rate determined in situ, as an estimator of daily photosynthetic activity. Nitrogen uptake efficiency (NUE) was close to 100 % under LN, whereas under HN it ranged from 50 to 70 % in the first week of culture, decreasing to 10–15 % in the rest of the experimental period. Nitrogen uptake rate (NUR) ranged from 20 to 45 mmol N m−2 h−1 under HN, and 5 to 18 mmol N m−2 h−1 in LN treatments. Morphological and pigmentation changes were evident through the culture period. The thalli under HN were more reddish under the indoor treatments, than that in LN. The internal compounds increased throughout the experimental period. Mycosporine-like amino acids (MAAs) were accumulated under HN. N plays a photoprotective role due to both the increased photosynthesis and the MAA content. Maximal MAA productivity reached 113–253 mg MAAs m−2 d−1 under the O-HN treatment, the highest level reported until now in the bibliography. G. cornea could be used for bioremediation of high N content waters. In addition, under full solar radiation and high N availability produce high levels of bioactive compounds as MAAs, polyphenols and biliproteins for cosmeceutical applications.es_ES
dc.description.sponsorshipThis study was financed by resources of the Photobiology and Biotechnology of aquatic organisms (FYBOA-RNM 295) research group and the Project “Photoprotectors of marine algae: compatible cosmeceutics to the ocean” (UMA18-FEDER JA-162) and Nazca Project (P20-00458) of the Andalusian Goverment. Funding for open access charge: Universidad de Málaga / CBUA.es_ES
dc.language.isoenges_ES
dc.publisherElsevieres_ES
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectBiomasaes_ES
dc.subjectFotosintesises_ES
dc.subjectAlgas -- Crecimientoes_ES
dc.subjectCompuestos bioactivos vegetaleses_ES
dc.subjectRodofíceases_ES
dc.subject.otherBiomass productivityes_ES
dc.subject.otherBiofiltrationes_ES
dc.subject.otherGracilaria corneaes_ES
dc.subject.otherIn vivo chlorophyll a fluorescencees_ES
dc.subject.otherMycosporine-like amino acidses_ES
dc.subject.otherNutrientses_ES
dc.subject.otherTank culturees_ES
dc.titleInteractive effects of solar radiation and inorganic nitrogen on biofiltration, biomass production, photosynthetic activity and the accumulation of bioactive compounds ies_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.centroFacultad de Cienciases_ES
dc.identifier.doihttps://doi.org/10.1016/j.algal.2022.102890
dc.rights.ccAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersiones_ES


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