Interactive effects of metal pollution and temperature on metabolism in aquatic ectotherms: implications of global climate change

Sokolova, Inna M.; Lannig, Gisela

doi:10.3354/cr00764

Cited by 466 publications

(306 citation statements)

References 182 publications

Supporting

Mentioning

279

Contrasting

Unclassified

Order By: Relevance

“…Engineered nanoparticles are novel anthropogenic stressors whose levels are expected to rise because of incremental consumer use (Jarvis, Miller, Lenihan, & Bielmyer, 2013). While an increasing number of studies looked at the effects of contaminants under warming (Carrie et al., 2009; Moe et al., 2013; Sokolova & Lannig, 2008), surprisingly few have focused on nanocontaminants (but see Mos, Kaposi, Rose, Kelaher, & Dworjanyn, 2017; Wong & Leung, 2014). Zinc oxide nanoparticles (nZnO) are one of the most produced nanoparticles with a worldwide production estimated at 550 tons per year (Piccinno, Gottschalk, Seeger, & Nowack, 2012; Read et al., 2016).…”

Section: Introductionmentioning

confidence: 99%

Thermal evolution offsets the elevated toxicity of a contaminant under warming: A resurrection study in Daphnia magna

Zhang

Jansen

Meester

et al. 2018

Evolutionary Applications

View full text Add to dashboard Cite

Synergistic interactions between temperature and contaminants are a major challenge for ecological risk assessment, especially under global warming. While thermal evolution may increase the ability to deal with warming, it is unknown whether it may also affect the ability to deal with the many contaminants that are more toxic at higher temperatures. We investigated how evolution of genetic adaptation to warming affected the interactions between warming and a novel stressor: zinc oxide nanoparticles (nZnO) in a natural population of Daphnia magna using resurrection ecology. We hatched resting eggs from two D. magna subpopulations (old: 1955–1965, recent: 1995–2005) from the sediment of a lake that experienced an increase in average temperature and in recurrence of heat waves but was never exposed to industrial waste. In the old “ancestral” subpopulation, exposure to a sublethal concentration of nZnO decreased the intrinsic growth rate, metabolic activity, and energy reserves at 24°C but not at 20°C, indicating a synergism between warming and nZnO. In contrast, these synergistic effects disappeared in the recent “derived” subpopulation that evolved a lower sensitivity to nZnO at 24°C, which indicates that thermal evolution could offset the elevated toxicity of nZnO under warming. This evolution of reduced sensitivity to nZnO under warming could not be explained by changes in the total internal zinc accumulation but was partially associated with the evolution of the expression of a key metal detoxification gene under warming. Our results suggest that the increased sensitivity to the sublethal concentration of nZnO under the predicted 4°C warming by the end of this century may be counteracted by thermal evolution in this D. magna population. Our results illustrate the importance of evolution to warming in shaping the responses to another anthropogenic stressor, here a contaminant. More general, genetic adaptation to an environmental stressor may ensure that synergistic effects between contaminants and this environmental stressor will not be present anymore.

show abstract

Section: Introductionmentioning

confidence: 99%

Thermal evolution offsets the elevated toxicity of a contaminant under warming: A resurrection study in Daphnia magna

Zhang

Jansen

Meester

et al. 2018

Evolutionary Applications

View full text Add to dashboard Cite

show abstract

“…Exposures will be altered through changes in physicochemical and biological fate processes, such as fugacity, biodegradation, and metabolism [203]. Some of these changes will result in increased exposures to some species or life stages, whereas others are decreased such as noted in metal type, concentration, and temperature interactions on fish [204].…”

Section: Climate Changementioning

confidence: 99%

Assessing contaminated sediments in the context of multiple stressors

Burton

Johnston

2010

Enviro Toxic and Chemistry

145

View full text Add to dashboard Cite

Abstract-Sediments have a major role in ecosystem functioning but can also act as physical or chemical stressors. Anthropogenic activities may change the chemical constituency of sediments and the rate, frequency, and extent of sediment transport, deposition, and resuspension. The importance of sediments as stressors will depend on site ecosystem attributes and the magnitude and preponderance of co-occurring stressors. Contaminants are usually of greater ecological consequence in human-modified, depositional environments, where other anthropogenic stressors often co-occur. Risk assessments and restoration strategies should better consider the role of chemical contamination in the context of multiple stressors. There have been numerous advances in the temporal and spatial characterization of stressor exposures and quantification of biological responses. Contaminated sediments causing biological impairment tend to be patchy, whereas more pervasive anthropogenic stressors, such as alterations to habitat and flow, physical disturbance, and nutrient addition, may drive large-scale ecosystem responses. A systematic assessment of relevant ecosystem attributes and reference conditions can assist in understanding the importance of sediments in the context of other stressors. Experimental manipulations then allow for the controlled study of dominant stressors and the establishment of causal links. This approach will result in more effective management of watersheds and waterways. Environ. Toxicol. Chem. 2010;29:262529: -264329: . # 2010

show abstract

“…The increase in MN frequency is an indirect marker of numeric and structural chromosomal irregularities in the cells caused by many agents (Arslan et al, 2015); thus, this indicates the clastogenic and/ or aneugenic capacity of Mn 2+ exposure combined with increased temperature. Furthermore, it is well documented that temperature modulates aquatic organisms' sensitivity to metals by affecting their physiological tolerance, energy demand, oxygen supply, and/or mitochondrial biogenesis (Sokolova, Lanning, 2008).…”

Section: Discussionmentioning

confidence: 99%

Effects of manganese on fat snook Centropomus parallelus (Carangaria: Centropomidae) exposed to different temperatures

et al. 2017

View full text Add to dashboard Cite

This study evaluates the effects of exposure to manganese (Mn 2+ ) for 96 hours at two different temperatures (24 and 27°C) on juveniles of Centropomus parallelus through the activities of glutathione S-transferase (GST) and catalase (CAT), micronuclei test (MN) and comet assay. The GST activity did not show any significant difference between the groups exposed to Mn 2+ and the respective control groups; in contrast, a major increase in the CAT activity was observed at 27°C in the group exposed to Mn 2+ compared to the control group. The genotoxic analyses showed that in all animals exposed to Mn 2+, the number of red cells with micronuclei increased significantly compared to the respective control groups. There was also a significant increase in the incidence of DNA damage in the groups exposed to Mn 2+. At a temperature of 24ºC, animals exposed to Mn 2+ had more DNA damage than those at 27°C. It is likely that the increase in temperature can also induce oxidative stress. Thus, we conclude that manganese is toxic to the fat snook juveniles, causing genotoxic damage, and when associated with an increase in temperature, manganese can also provoke an increase in oxidative stress.Keywords: Biomarkers, DNA damage, Enzymes, Genotoxicity, Metal, Micronuclei.Este estudo avaliou os efeitos da exposição ao manganês (Mn 2+ ), após 96 horas, a duas temperaturas (24 e 27°C) em juvenis de Centropomus parallelus por meio de análises bioquímicas (atividade das enzimas glutationa S-transferase (GST) e catalase (CAT)) e genotóxicas (teste do micronúcleo e ensaio cometa). A atividade da GST não mostrou diferença significativa entre os grupos expostos ao Mn 2+ e os seus respectivos grupos controle, enquanto que um aumento significativo na atividade da CAT foi observado a 27°C no grupo exposto ao Mn 2+ , quando comparado ao grupo controle. As análises genotóxicas mostraram que os animais expostos ao Mn 2+ tiveram aumento significativo na quantidade de células com micronúcleo em relação aos seus grupos de controles. Houve também aumento significativo na incidência de danos ao DNA nos grupos expostos a esse contaminante. Na temperatura de 24°C, os animais expostos ao Mn 2+ tiveram maior quantidade de danos no DNA em relação a 27°C. É provável que o aumento da temperatura também possa induzir o estresse oxidativo. Assim, concluímos que o manganês é tóxico para os juvenis de robalo, causando dano genotóxico, e quando associado a um aumento da temperatura, também pode provocar um aumento no estresse oxidativo.

show abstract

Interactive effects of metal pollution and temperature on metabolism in aquatic ectotherms: implications of global climate change

Cited by 466 publications

References 182 publications

Thermal evolution offsets the elevated toxicity of a contaminant under warming: A resurrection study in Daphnia magna

Thermal evolution offsets the elevated toxicity of a contaminant under warming: A resurrection study in Daphnia magna

Assessing contaminated sediments in the context of multiple stressors

Effects of manganese on fat snook Centropomus parallelus (Carangaria: Centropomidae) exposed to different temperatures

Contact Info

Product

Resources

About