دورية أكاديمية
Effects of spill-treating agents on growth kinetics of marine microalgae
| العنوان: | Effects of spill-treating agents on growth kinetics of marine microalgae |
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| المؤلفون: | Rial, Diego, Murado García, Miguel Anxo, Menduiña, Araceli, Fuciños, P., González Fernández, Pilar, Mirón, Jesús, Vázquez, José Antonio |
| بيانات النشر: | Elsevier |
| سنة النشر: | 2013 |
| المجموعة: | Digital.CSIC (Consejo Superior de Investigaciones Científicas / Spanish National Research Council) |
| مصطلحات موضوعية: | Spill-treating agents, Weibull and logistic equations, Algae growth kinetics, EC50, Toxicological end-points |
| الوصف: | 8 páginas, 3 figuras, 3 tablas ; The effects of four spill-treating agents (STAs) (CytoSol, Finasol® OSR 51, Agma OSD 569 and OD4000) on the growth kinetics of three marine microalgae (Isochrysis galbana, Chaetoceros gracilis, Phaeodactylum tricornutum) were studied. Chlorophyll a concentration and optical density at 700 nm were assessed to describe the logistic growth of algae in batch cultures. The optical density data were initially analyzed as described for standard algal growth inhibition tests and subsequently modelled by a bivariate model, as a function of time and dose, to assess the toxic effects on growth parameters. Increasing trends in EC50 and EC10 values with time were found with the standard approach. In 8 of the 11 tests, the lag phase (λ) or the time required to achieve half the maximum biomass (τ) was significantly dependent on the STA concentration. A global parameter (EC50,τ) was calculated to summarize the effects of STAs on growth parameters in the bivariate model. The ranking of sensitivity as EC50,τ values was I. galbana > C. gracilis > P. tricornutum. For all species tested, the least toxic agent was Agma OSD 569, followed by CytoSol. The mathematical model allowed successful ecotoxicological evaluation of chemicals on microalgal growth. ; Diego Rial was awarded an Isabel Barreto contract, and we are grateful for this financial support (Dirección Xeral de Investigación, Desenvolvemento e Innovación; Xunta de Galicia). This study was funded by the Ministerio de Ciencia y Tecnología (CTM2010-18411 co financed by FEDER funds from European Union). ; Peer reviewed |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 0304-3894 1873-3336 |
| العلاقة: | http://dx.doi.org/10.1016/j.jhazmat.2013.07.010Test; Journal of Hazardous Materials 263(P2): 374-381 (2013); http://hdl.handle.net/10261/80507Test |
| DOI: | 10.1016/j.jhazmat.2013.07.010 |
| الإتاحة: | https://doi.org/10.1016/j.jhazmat.2013.07.010Test http://hdl.handle.net/10261/80507Test |
| حقوق: | open |
| رقم الانضمام: | edsbas.9FD49F8 |
| قاعدة البيانات: | BASE |
| تدمد: | 03043894 18733336 |
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| DOI: | 10.1016/j.jhazmat.2013.07.010 |