title: Biofiltration of fishpond effluents and accumulation of N-compounds (phycobiliproteins and mycosporine-like amino acids) versus C-compounds (polysaccharides) in Hydropuntia cornea (Rhodophyta).
abstract: The biofiltration capacity, biomass-yield and accumulation of N- and C-compounds of Hydropuntia cornea were analyzed. Algae were grown in different conditions for 28 d: outdoor and indoor, with or without fishpond effluents. N-uptake efficiency of these effluents was higher than 95% after 7 d both outdoors and indoors. N-enriched conditions reduced the extent of photoinhibition and increased the maximal quantum yield in H. cornea. The biomass-yield was higher in outdoor grown-algae after 7 d and decreased independently of the treatment after 28 d. N, acid polysaccharide (AP) and mycosporine-like amino acid (MAA)-yields decreased throughout the experiment in all conditions. The highest MAA-yield was observed in fishpond effluent outdoor-grown algae, indicating a positive effect of increased radiation on MAA accumulation. However, APs were higher under N-depleted conditions. The use of MAAs as UV-screening and antioxidants, and the use of AP as immunostimulants are discussed.
authors.affiliation: Departamento de Ecología, Facultad de Ciencias, Universidad de Málaga, Campus Universitario de Teatinos s/n, 29071 Málaga, Spain.
authors.forename: Félix L
authors.initials: FL
authors.lastname: Figueroa
authors.forename: Nathalie
authors.initials: N
authors.lastname: Korbee
authors.forename: Roberto
authors.initials: R
authors.lastname: Abdala
authors.forename: Celia G
authors.initials: CG
authors.lastname: Jerez
authors.forename: Mayra
authors.initials: M
authors.lastname: López-de la Torre
authors.forename: Leire
authors.initials: L
authors.lastname: Güenaga
authors.forename: María A
authors.initials: MA
authors.lastname: Larrubia
authors.forename: Juan L
authors.initials: JL
authors.lastname: Gómez-Pinchetti
mesh_terms: D000596:Amino Acids / Q000378:metabolism; D018533:Biomass; D005374:Filtration; D008027:Light; D017672:Nitrogen Compounds / Q000378:metabolism*; D010788:Photosynthesis / Q000528:radiation effects; D011134:Polysaccharides / Q000378:metabolism; D000461:Rhodophyta / Q000378:metabolism* / Q000528:radiation effects; D014865:Waste Disposal, Fluid
chemical_list: D000596:Amino Acids; D017672:Nitrogen Compounds; D011134:Polysaccharides