Is there a relationship between earthworm energy reserves and metal availability after exposure to field-contaminated soils?

Beaumelle, Léa; Lamy, Isabelle; Cheviron, Nathalie; Hedde, Mickaël

doi:10.1016/j.envpol.2014.04.021

Cited by 27 publications

(13 citation statements)

References 48 publications

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“…Pb proportion in the debris fraction was not related to any chemical measurements. The relationship between CaCl 2 -extractable Pb and the proportion of Pb in the cytosolic fraction is consistent with our previous findings that energy reserves in earthworms exposed to the same 31 soils decreased with CaCl 2 -extractable Pb (Beaumelle et al, 2014). Indeed, Pb in the cytosol is considered to be indicative of toxic pressure (Jones et al, 2009).…”

Section: Relationship Between Subcellular Partitioning and Soil Metalsupporting

confidence: 84%

“…Soil samples were hand sorted to remove soil fauna and plant debris, air-dried, sieved at 2 mm. Table 1 gives the ranges of selected soil parameters and Cd, Pb and Zn total contents of the soil samples (detailed information can be found in Beaumelle et al (2014)). …”

Section: Methodsmentioning

confidence: 99%

“…Thirty one soil samples were chosen to achieve a wide gradient of metal availability as described in Beaumelle et al (2014). Soils were sampled in four contaminated sites, namely Metaleurop (Me) and Mortagne-du-Nord (Mo) (smelter-contaminated), Pierrelaye (Pi) and Triel-sur-Seine (Tr) (wastewater-contaminated), and four uncontaminated sites: Feucherolles (Fe), Yvetot (Yv), Bannost (Ba) and Closeaux (Cl) all located in Northern France.…”

Section: Methodsmentioning

confidence: 99%

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Subcellular partitioning of metals in Aporrectodea caliginosa along a gradient of metal exposure in 31 field-contaminated soils

Beaumelle¹,

Gimbert

Hedde³

et al. 2015

Science of The Total Environment

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Section: Relationship Between Subcellular Partitioning and Soil Metalsupporting

confidence: 84%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Subcellular partitioning of metals in Aporrectodea caliginosa along a gradient of metal exposure in 31 field-contaminated soils

Beaumelle¹,

Gimbert

Hedde³

et al. 2015

Science of The Total Environment

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“…terrestris has been proven beneficial to assess the impact of low, environmentally relevant concentrations of Cd on different levels of biological organization. The low Cd soil concentration used in this study (10 mg/kg) corresponds to the soil concentrations found in agricultural areas (8.91–11.99 mg/kg), in the vicinity of smelters (8.32 mg/kg) as well as in estuaries and deltas of polluted rivers (9.9–24.4 mg/kg) [76–79]. High Cd soil concentration used to test for acclimation (60 mg/kg) is linked to the concentrations found in more polluted environments, such as mines (up to 200 mg/kg) and lead-zinc smelters (54.5 mg/kg) [80].…”

Section: Discussionmentioning

confidence: 99%

Low levels of Cd induce persisting epigenetic modifications and acclimation mechanisms in the earthworm Lumbricus terrestris

2017

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Toxic effects of cadmium (Cd), a common soil pollutant, are still not very well understood, particularly in regard to its epigenetic impact. Therefore, the aim of this study was to assess DNA methylation changes and their persistence in the earthworm Lumbricus terrestris upon chronic low dose Cd exposure using methylation sensitive amplification polymorphism (MSAP). Moreover, the biomarker response and fitness of the earthworms, as well as the expression of detoxification-related genes (metallothionein (MT) and phytochelatin synthase (PCS)) was evaluated. Low levels of Cd caused an increase in genome-wide DNA methylation, which remained partly modified, even after several months of recovery in unpolluted soil. Increased cellular stress seemed to decrease after two weeks of exposure whereas fitness parameters remained unaffected by Cd, probably as a result from the activation of detoxification mechanisms like the expression of MTs. Interestingly, even though the level of Cd exposure was very low, MT expression levels indicate the development of acclimation mechanisms. Taken together, this study demonstrates that acclimation, as well as epigenetic modifications can occur already in moderately polluted environments. In addition, these effects can have long-lasting impacts on key species of soil invertebrates and might persist long after the actual heavy metal challenge has passed.

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“…Biomarkers are assumed to be direct measurements of pollutant bioavailability (Lanno et al 2004). Recently, Beaumelle et al (2014) studied the influence of metal concentration, multicontamination, and soil characteristics on earthworm energy response to metal availability. At low concentration and despite the influence of multicontamination and soil characteristics, they found a link between earthworm energy reserves (protein and lipid) and metal availability.…”

Section: Studied On Invertebrates and Small Animalsmentioning

confidence: 99%

A coordinated set of ecosystem research platforms open to international research in ecotoxicology, AnaEE-France

Mougin

Azam

Caquet

et al. 2015

Environ Sci Pollut Res

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The infrastructure for Analysis and Experimentation on Ecosystems (AnaEE-France) is an integrated network of the major French experimental, analytical, and modeling platforms dedicated to the biological study of continental ecosystems (aquatic and terrestrial). This infrastructure aims at understanding and predicting ecosystem dynamics under global change. AnaEE-France comprises complementary nodes offering access to the best experimental facilities and associated biological resources and data: Ecotrons, seminatural experimental platforms to manipulate terrestrial and aquatic ecosystems, in natura sites equipped for large-scale and long-term experiments. AnaEE-France also provides shared instruments and analytical platforms dedicated to environmental (micro) biology. Finally, AnaEE-France provides users with data bases and modeling tools designed to represent ecosystem dynamics and to go further in coupling ecological, agronomical, and evolutionary approaches. In particular, AnaEE-France offers adequate services to tackle the new challenges of research in ecotoxicology, positioning its various types of platforms in an ecologically advanced ecotoxicology approach. AnaEE-France is a leading international infrastructure, and it is pioneering the construction of AnaEE (Europe) infrastructure in the field of ecosystem research. AnaEE-France infrastructure is already open to the international community of scientists in the field of continental ecotoxicology.

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Is there a relationship between earthworm energy reserves and metal availability after exposure to field-contaminated soils?

Cited by 27 publications

References 48 publications

Subcellular partitioning of metals in Aporrectodea caliginosa along a gradient of metal exposure in 31 field-contaminated soils

Subcellular partitioning of metals in Aporrectodea caliginosa along a gradient of metal exposure in 31 field-contaminated soils

Low levels of Cd induce persisting epigenetic modifications and acclimation mechanisms in the earthworm Lumbricus terrestris

A coordinated set of ecosystem research platforms open to international research in ecotoxicology, AnaEE-France

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