Journal ArticleDOI
Time-averaged concentrations are effective for predicting chronic toxicity of varying copper pulse exposures for two freshwater green algae species.
TLDR
The results indicate the WQGV for copper may be relaxed for pulsed exposures by a factor less than or equivalent to the TAC and still achieve a protection to these sensitive algae species.About:
This article is published in Environmental Pollution.The article was published on 2017-11-01. It has received 20 citations till now. The article focuses on the topics: Chronic toxicity.read more
Citations
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Journal ArticleDOI
Toxicological interaction of multi-component mixtures to Vibrio qinghaiensis sp.-Q67 induced by at least three components.
TL;DR: It is drawn a new conclusion that the antagonism of the multi-component mixtures is induced by at least three components (including POL), with complex chemical interactions, and future environmental protection practitioners and academic researchers should construct more scenarios of mixtures when assessing the influences and reactions of certain chemicals causing pollutions.
Journal ArticleDOI
Effect of Various Natural Dissolved Organic Carbon on Copper Lability and Toxicity to the Tropical Freshwater Microalga Chlorella sp
Gabriella K. Macoustra,Aleicia Holland,Aleicia Holland,Aleicia Holland,Jenny L. Stauber,Dianne F. Jolley +5 more
TL;DR: Differences between EC50 values derived using the WHAM-predicted free Cu2+ concentrations and agreement between DGT-labile and the maximum dynamic concentration suggest free copper is not the sole contributor to toxicity and that the source of the specific DOCs also plays a role.
Journal ArticleDOI
Higher biomolecules yield in phytoplankton under copper exposure.
TL;DR: The physiology of Scenedesmus quadricauda, a cosmopolitan species, exposed to copper concentrations including those that trigger intracellular biochemical modifications, is investigated, showing that both free Cu2+ ions and cellular Cu increased with Cu increase in culture medium.
Journal ArticleDOI
Effects of continuous and intermittent cadmium exposure on HPGL axis, GH/IGF axis and circadian rhythm signaling and their consequences on reproduction in female zebrafish: Biomarkers independent of exposure regimes
TL;DR: In this article, the toxic effects of cadmium exposure in zebrafish were evaluated using 8 various physiological and biochemical endpoints like specific growth rate (SGR), 17β-estradiol (E2), and vitellogenin (VTG) concentrations in plasma, reproductive parameters (gonadosomatic index (GSI), egg-laying amount, spawning percentage, and hatching and mortality rate of embryos).
Journal ArticleDOI
Physiological responses of three mono-species phototrophic biofilms exposed to copper and zinc
Emilie Loustau,Jessica Ferriol,Shams Koteiche,Léo Gerlin,Joséphine Leflaive,Frédéric Moulin,Elisabeth Girbal-Neuhauser,Jean-Luc Rols +7 more
TL;DR: Analysis of metal effects on algal biomass and photosynthetic efficiency showed that metals were toxic at higher concentrations for these two parameters together and that all the strains were more sensitive to Cu than to Zn.
References
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Book ChapterDOI
The Glutathione Status of Cells
TL;DR: GSH status, the biologically relevant chemistry of GSH, the forms in which GSH can be present within the cell, along with the GSH content of cells and the methods for analysis of this substance are discussed.
Journal ArticleDOI
Trace metal concentrations in aquatic invertebrates: why and so what?
TL;DR: The significance of accumulated metal concentrations is discussed in terms of the biological significance, including the attempted recognition of a high or low concentration, and of the applied use of aquatic invertebrates in biomonitoring programmes assessing geographical and temporal variation in trace metal bioavailabilities in aquatic systems.
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Internal metal sequestration and its ecotoxicological relevance: a review.
Martina G. Vijver,Cornelis A.M. van Gestel,Roman P. Lanno,Nico M. van Straalen,Willie J.G.M. Peijnenburg +4 more
TL;DR: Current knowledge regarding metal compartmentalization in organisms is summarized, and metal fractions are identified that are indicators of toxicity that can be approximated for risk assessment of metal stress to biota.
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Trace Metal Interactions with Marine Phytoplankton
TL;DR: The role of trace metals in metalloenzymes has been investigated in this paper, showing that trace metals influence metabolism primarily as a consequence of the role of many of these metals (Fe, Mn, Zn, Cu, Co, Mo, Ni).
Journal ArticleDOI
Mechanism of toxicity of ionic copper and copper complexes to algae
TL;DR: The mechanism of toxicity of ionic copper and copper complexes to growth, photosynthesis, respiration, ATP levels and mitochondrial electron-transport chain-activity in two marine diatoms, Nitzschia closterium and Asterionella glacialis Castracane, was investigated and copper-ethylxanthogenate was exceptional amongst the copper complexes.