Climate change effects on enchytraeid performance in metal-polluted soils explained from changes in metal bioavailability and bioaccumulation

González-Alcaraz, María Nazaret; Gestel, Cornelis A.M. van

doi:10.1016/j.envres.2015.06.027

Cited by 36 publications

(23 citation statements)

References 52 publications

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“…Zn bioavailability is predominantly controlled by adsorption-desorption phenomena and liquid/solid solubility relations [23]. The bioavailability of Zn depends on many factors, namely pH, chemical and mineralogical composition, soil organic matter, root exudates, and rhizospheric microbial communities [8][9][10]23].…”

Section: Sources and Bioavailability Of Zincmentioning

confidence: 99%

Zinc Hyperaccumulation in Plants: A Review

Balafrej

Bogusz

Triqui

et al. 2020

Plants

186

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Zinc is an essential microelement involved in many aspects of plant growth and development. Abnormal zinc amounts, mostly due to human activities, can be toxic to flora, fauna, and humans. In plants, excess zinc causes morphological, biochemical, and physiological disorders. Some plants have the ability to resist and even accumulate zinc in their tissues. To date, 28 plant species have been described as zinc hyperaccumulators. These plants display several morphological, physiological, and biochemical adaptations resulting from the activation of molecular Zn hyperaccumulation mechanisms. These adaptations can be varied between species and within populations. In this review, we describe the physiological and biochemical as well as molecular mechanisms involved in zinc hyperaccumulation in plants.

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Section: Sources and Bioavailability Of Zincmentioning

confidence: 99%

Zinc Hyperaccumulation in Plants: A Review

Balafrej

Bogusz

Triqui

et al. 2020

Plants

186

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“…Climate conditions, especially air temperature and soil moisture content, also play an important role since they can influence the performance of soil organisms as well as the speciation and therefore the bioavailability of the metals present in the system (Holmstrup et al, 2010;Augustsson et al, 2011;González-Alcaraz and van Gestel, 2015). In the actual context of global warming, studies concerning how climate factors may affect metal bioavailability and thus toxicity to soil organisms are gaining more interest (Løkke et al, 2013;Stahl et al, 2013;Noyes and Lema, 2015).…”

Section: Introductionmentioning

confidence: 99%

Toxicokinetics of Zn and Cd in the earthworm Eisenia andrei exposed to metal-contaminated soils under different combinations of air temperature and soil moisture content

2018

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This study evaluated how different combinations of air temperature (20 °C and 25 °C) and soil moisture content (50% and 30% of the soil water holding capacity, WHC), reflecting realistic climate change scenarios, affect the bioaccumulation kinetics of Zn and Cd in the earthworm Eisenia andrei. Earthworms were exposed for 21 d to two metal-contaminated soils (uptake phase), followed by 21 d incubation in non-contaminated soil (elimination phase). Body Zn and Cd concentrations were checked in time and metal uptake (k) and elimination (k) rate constants determined; metal bioaccumulation factor (BAF) was calculated as k/k. Earthworms showed extremely fast uptake and elimination of Zn, regardless of the exposure level. Climate conditions had no major impacts on the bioaccumulation kinetics of Zn, although a tendency towards lower k and k values was observed at 25 °C + 30% WHC. Earthworm Cd concentrations gradually increased with time upon exposure to metal-contaminated soils, especially at 50% WHC, and remained constant or slowly decreased following transfer to non-contaminated soil. Different combinations of air temperature and soil moisture content changed the bioaccumulation kinetics of Cd, leading to higher k and k values for earthworms incubated at 25 °C + 50% WHC and slower Cd kinetics at 25 °C + 30% WHC. This resulted in greater BAFs for Cd at warmer and drier environments which could imply higher toxicity risks but also of transfer of Cd within the food chain under the current global warming perspective.

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“…Using environmental biological receptors, the toxic effects of some other metal(loid)s have been reported [61]. For example, comparing two air temperatures (20 and 25 • C) and using a drought simulation (50% and 30% moisture of water holding capacity of soil), González-Alcaraz and van Gestel [64] reported that in an extreme scenario (30% moisture but 25 • C temperature) invertebrates in watercourse soil could accumulate more Cd, Pb, and Zn in their body and become severely damaged. In the Arctic, except for the above-mentioned changes of contaminant pathways, the temperature warming may shift ice/snow into water or trigger the thawing of previously permanently frozen soil layers and hence have immense consequences for physical and biological systems [58,65,66].…”

Section: Methodsmentioning

confidence: 99%

The Fate of Chemical Pollutants with Soil Properties and Processes in the Climate Change Paradigm—A Review

Biswas

et al. 2018

Soil Systems

102

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Heavy metal(loid)s and organic contaminants are two major groups of pollutants in soils. The fate and exposure of such pollutants in soil depends on their chemical properties, speciation, and soil properties. Soil properties and processes that control the toxicological aspects of pollutants include temperature, moisture, organic matter, mineral fractions, and microbial activities. These processes are vulnerable to climate change associated with global warming, including increased incidences of extreme rainfall, extended dry periods, soil erosion, and a rise in sea level. Here we explain evidence that relates to the effects of climate change-driven soil processes on the mobility, transport, and storage of pollutants in soil. The review found that changes in climate could increase human exposure to soil contaminants mainly due to processes involving soil organic carbon (SOC), surface runoff, redox state, and microbial community. However, uncertainties remain in relation to the extent of contaminant toxicity to human health, which is linked to global change drivers.

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Climate change effects on enchytraeid performance in metal-polluted soils explained from changes in metal bioavailability and bioaccumulation

Cited by 36 publications

References 52 publications

Zinc Hyperaccumulation in Plants: A Review

Zinc Hyperaccumulation in Plants: A Review

Toxicokinetics of Zn and Cd in the earthworm Eisenia andrei exposed to metal-contaminated soils under different combinations of air temperature and soil moisture content

The Fate of Chemical Pollutants with Soil Properties and Processes in the Climate Change Paradigm—A Review

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