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• W2330146513 abstract "Event Abstract Back to Event Toxicity of three antibiotics used in aquaculture on the marine microalgae Tetraselmis suecica (Kylin) Butch. Marta Seoane1*, Carmen Rioboo1 and Ángeles Cid1 1 Universidad de A Coruña, Spain Aquaculture facilities are a potential source of antibiotics to the aquatic ecosystems. The presence of these compounds in the environment may have deleterious effects on non-target aquatic organisms such as microalgae, which are often used as biological indicators of pollution. Therefore, the aim of the present study was to evaluate the toxicity induced by chloramphenicol (CHL), florfenicol (FLO) and oxytetracycline (OTC), three antibiotics widely used in aquaculture, on the marine microalgae Tetraselmis suecica, a species also used in aquacultural practices. Toxicity was evaluated taking into account alterations on growth and cellular viability and activity, being these parameters monitored using flow cytometry technique. Results showed that all three antibiotics assayed inhibit growth of T. suecica with 96 h IC50 values of 11.16, 9.03 and 17.25 mg l-1 for CHL, FLO and OTC, respectively. After 24 hours of exposure, the integrity of the cell membrane, related with cellular viability and assessed by propidium iodide staining (PI), was not altered; therefore cells remained viable. However, FLO and OTC were found to significant reduce the metabolic activity at higher concentrations assayed, as indicated the fluorescein diacetate assay (FDA). Since growth inhibition and significant physiological alterations were observed, it can be concluded that T. suecica was sensitive to the three antibiotics tested, thus the use of these antibiotics should be carefully monitored to reduce the potential risk of contamination of the marine environment. Keywords: antibiotics, Cytotoxicity, emerging micropollutants, Growth inhibition, microalga Conference: IMMR | International Meeting on Marine Research 2014, Peniche, Portugal, 10 Jul - 11 Jul, 2014. Presentation Type: Poster Presentation Topic: AQUACULTURE Citation: Seoane M, Rioboo C and Cid Á (2014). Toxicity of three antibiotics used in aquaculture on the marine microalgae Tetraselmis suecica (Kylin) Butch.. Front. Mar. Sci. Conference Abstract: IMMR | International Meeting on Marine Research 2014. doi: 10.3389/conf.fmars.2014.02.00111 Copyright: The abstracts in this collection have not been subject to any Frontiers peer review or checks, and are not endorsed by Frontiers. They are made available through the Frontiers publishing platform as a service to conference organizers and presenters. The copyright in the individual abstracts is owned by the author of each abstract or his/her employer unless otherwise stated. Each abstract, as well as the collection of abstracts, are published under a Creative Commons CC-BY 4.0 (attribution) licence (https://creativecommons.org/licenses/by/4.0/) and may thus be reproduced, translated, adapted and be the subject of derivative works provided the authors and Frontiers are attributed. For Frontiers’ terms and conditions please see https://www.frontiersin.org/legal/terms-and-conditions. Received: 25 Apr 2014; Published Online: 18 Jul 2014. * Correspondence: Miss. Marta Seoane, Universidad de A Coruña, A Coruña, A Coruña, 15008, Spain, marta.seoane@udc.es Login Required This action requires you to be registered with Frontiers and logged in. To register or login click here. Abstract Info Abstract The Authors in Frontiers Marta Seoane Carmen Rioboo Ángeles Cid Google Marta Seoane Carmen Rioboo Ángeles Cid Google Scholar Marta Seoane Carmen Rioboo Ángeles Cid PubMed Marta Seoane Carmen Rioboo Ángeles Cid Related Article in Frontiers Google Scholar PubMed Abstract Close Back to top Javascript is disabled. Please enable Javascript in your browser settings in order to see all the content on this page." @default.
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• W2330146513 title "Toxicity of three antibiotics used in aquaculture on the marine microalgae Tetraselmis suecica (Kylin) Butch." @default.
• W2330146513 doi "https://doi.org/10.3389/conf.fmars.2014.02.00111" @default.
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