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Bioaccumulation and toxicity of selenium compounds in the green alga Scenedesmus quadricauda
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SYSNO ASEP 0334605 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Bioaccumulation and toxicity of selenium compounds in the green alga Scenedesmus quadricauda Title Bioakumulace a toxicita selenových sloučenin v zelené řase Scenedesmus quadricauda Author(s) Umysová, Dáša (MBU-M)
Vítová, Milada (MBU-M) RID, ORCID
Doušková, Irena (MBU-M)
Bišová, Kateřina (MBU-M) RID
Hlavová, Monika (MBU-M)
Čížková, Mária (MBU-M) ORCID
Machat, J. (CZ)
Doucha, Jiří (MBU-M)
Zachleder, Vilém (MBU-M) ORCIDSource Title BMC Plant Biology. - : BioMed Central - ISSN 1471-2229
Roč. 9, č. 58 (2009), s. 1-16Number of pages 16 s. Language eng - English Country GB - United Kingdom Keywords CHLAMYDOMONAS-REINHARDTII ; THIOREDOXIN REDUCTASE ; EMILIANIA-HUXLEYI Subject RIV EE - Microbiology, Virology R&D Projects IAA600200701 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) OE 221 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) OE09025 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z50200510 - MBU-M (2005-2011) UT WOS 000266866500001 DOI 10.1186/1471-2229-9-58 Annotation We studied the impact of selenium compounds on the green chlorococcal alga Scenedesmus quadricauda. Both the dose and chemical forms of Se were critical factors in the cellular response. Se toxicity increased in cultures grown under sulfur deficient conditions. We selected three strains of Scenedesmus quadricauda specifically resistant to high concentrations of inorganic selenium added as selenite – strain SeIV, selenate – strain SeVI or both – strain SeIV+VI. The total amount of Se and selenomethionine in biomass increased with increasing concentration of Se in the culturing media. The selenomethionine made up 30–40% of the total Se in biomass. In both the wild type and Se-resistant strains, the activity of thioredoxin reductase, increased rapidly in the presence of the form of selenium for which the given algal strain was not resistant Workplace Institute of Microbiology Contact Eliška Spurná, eliska.spurna@biomed.cas.cz, Tel.: 241 062 231 Year of Publishing 2010
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