Document Detail


Antagonistic and synergistic effects of light irradiation on the effects of copper on Chlamydomonas reinhardtii.
MedLine Citation:
PMID:  25072593     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The present study showed the important role of light intensity and spectral composition on Cu uptake and effects on green alga Chlamydomonas reinhardtii. High-intenisty light (HL) increased cellular Cu concentrations, but mitigated the Cu-induced decrease in chlorophyll fluorescence, oxidative stress and lipid peroxidation at high Cu concentrations, indicating that Cu and HL interact in an antagonistic manner. HL up-regulated the transcription of genes involved in the antioxidant response in C. reinhardtii and thus reduced the oxidative stress upon exposure to Cu and HL. Combined exposure to Cu and UVBR resulted in an increase of cellular Cu contents and caused severe oxidative damage to the cells. The observed effects were higher than the sum of the effects corresponding to exposure to UVBR or Cu alone suggesting a synergistic interaction.
Authors:
Giulia Cheloni; Claudia Cosio; Vera I Slaveykova
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-7-15
Journal Detail:
Title:  Aquatic toxicology (Amsterdam, Netherlands)     Volume:  155C     ISSN:  1879-1514     ISO Abbreviation:  Aquat. Toxicol.     Publication Date:  2014 Jul 
Date Detail:
Created Date:  2014-7-29     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8500246     Medline TA:  Aquat Toxicol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  275-282     Citation Subset:  -    
Copyright Information:
Copyright © 2014 Elsevier B.V. All rights reserved.
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