Document Detail


Uptake from Water, Internal Distribution and Bioaccumulation of Selenium in Scenedesmus obliquus, Unio mancus and Rattus norvegicus: Part B.
MedLine Citation:
PMID:  25335578     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
(75)Se-selenite transfer was investigated in a phytoplankton-mussel-rat food chain model consisting of Scenedesmus obliquus (Turpin) Kützing, Unio mancus Lamark and Rattus norvegicus Berkenhout. (75)Se-metabolized forms were investigated in order to identify potential critical steps in the food chain, as well as its relative bioavailability looking also at intracellular, cellular and organ partitioning. Tissue and intracellular distribution of (75)Se in mussels fed with (75)Se-S. obliquus was different compared to those exposed only to inorganic (75)Se-selenite. The intracellular distribution of (75)Se in the hepatopancreas and mantle of mussels fed (75)Se-microalgae was similar to hepatic and renal distributions in rats, suggesting that their stomach dissociated larger (75)Se-containing molecules. The (75)Se partitioned from water (culture medium) to microalgae showing a bioconcentration factor of 435. The bottleneck in the trophic transfer of (75)Se occurred between S. obliquus-U. mancus. From microalgae to mussels and subsequently to rats no bioaccumulation was verified.
Authors:
Enrico Sabbioni; Aldo-Eliano Polettini; Salvador Fortaner; Massimo Farina; Flavia Groppi; Simone Manenti; Giovanni Libralato
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-10-22
Journal Detail:
Title:  Bulletin of environmental contamination and toxicology     Volume:  -     ISSN:  1432-0800     ISO Abbreviation:  Bull Environ Contam Toxicol     Publication Date:  2014 Oct 
Date Detail:
Created Date:  2014-10-22     Completed Date:  -     Revised Date:  2014-10-23    
Medline Journal Info:
Nlm Unique ID:  0046021     Medline TA:  Bull Environ Contam Toxicol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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