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Effects of single and mixed estrogens on single and combined cultures of D. subspicatus and P. subcapitata
Linnaeus University, Faculty of Health and Life Sciences, Department of Biology and Environmental Science. Rio de Janeiro State University. (ESEG/BioProcess/LABIFI)
Rio de Janeiro State University. (BioProcess/LABIFI)
Linnaeus University, Faculty of Health and Life Sciences, Department of Biology and Environmental Science. Rio de Janeiro State University. (ESEG/BioProcess/LABIFI)ORCID iD: 0000-0002-7920-8001
Linnaeus University, Faculty of Health and Life Sciences, Department of Biology and Environmental Science. (ESEG)ORCID iD: 0000-0002-1903-760X
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2014 (English)In: Bulletin of Environmental Contamination and Toxicology, ISSN 0007-4861, E-ISSN 1432-0800, Vol. 93, no 2, p. 215-221Article in journal (Refereed) Published
Abstract [en]

This paper investigates the effect of estrone (E1), 17 beta-estradiol (E2) and 17 alpha-ethinylestradiol (EE2) individually and mixed at equal proportions (1:1:1) on Desmodesmus subspicatus and Pseudokirchneriella subcapitata in single and combined cultures (S+) at different exposure times basedon algal growth (in vivo chlorophyll fluorescence and cell counting) and coenobium formation. EE2 and E2 were more toxic to individual and combined (S+) cultures than was E1. The frequency of coenobium formation by D. subspicatus increased significantly for all estrogens and all concentrations. After 96 h, D. subspicatus prevailed in S+. The results of the exposure to E+ suggested a less-than-additive effecton D. subspicatus and S+ and additive effect on P. subcapitata. Toxic effects occurred for both species exposed to E+ with individual estrogen concentrations below the NOEC of each species. Assays must include changes in response due to the exposure of more than one species to more than one estrogen.

Place, publisher, year, edition, pages
2014. Vol. 93, no 2, p. 215-221
Keywords [en]
Estrogens; Additive effect; Less than additive effect; Desmodesmus subspicatus; Pseudokirchneriella subcapitata
National Category
Environmental Sciences
Research subject
Natural Science, Environmental Science
Identifiers
URN: urn:nbn:se:lnu:diva-33900DOI: 10.1007/s00128-014-1294-6ISI: 000339104500016Scopus ID: 2-s2.0-84904855463OAI: oai:DiVA.org:lnu-33900DiVA, id: diva2:712496
Available from: 2014-04-15 Created: 2014-04-15 Last updated: 2017-12-05Bibliographically approved

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de Sa Salomao, Andre LuisMarques, MarciaHogland, William

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