Publication
Title
Copper toxicity in the microalga **Chlamydomonas reinhardtii** : an integrated approach
Author
Abstract
The effects of copper exposure at five different concentrations on the freshwater alga Chlamydomonas reinhardtii were studied at the biochemical (metabolite), physiological (uptake kinetics and flow cytometry) and growth level. Changes at the physiological level were evident at the lowest exposure concentration while effects on the metabolome and on growth only occurred at the highest copper concentration tested. Flow cytometry revealed the presence of higher reactive oxygen species concentrations in algae exposed to higher copper concentrations and this was confirmed by a significant reduction in glutathione levels as part of the metabolomics assessment. Cu2+ uptake kinetic data contributed information on possible mechanisms of copper toxicity, revealing that, a decrease in efflux pumping might be at the basis of an increased metal accumulation at higher exposure levels. This study demonstrates the value of using a comparative approach to investigating the mechanisms of toxicity rather than focusing on a single level of organization or effect
Language
English
Source (journal)
Biometals. - Oxford
Publication
Oxford : 2013
ISSN
0966-0844
Volume/pages
26:5(2013), p. 731-740
ISI
000326926600006
Full text (Publisher's DOI)
Full text (publisher's version - intranet only)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 25.06.2013
Last edited 19.10.2017
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