Feeding activity of the earthworm Eisenia andrei in artificial soil

Jager, Tjalling; Fleuren, Roel H.L.J.; Roelofs, Willem; Groot, Arthur C. de

doi:10.1016/s0038-0717(02)00282-1

Cited by 41 publications

(33 citation statements)

References 27 publications

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“…Gut loading (dry weight soil per dry weight worm) for E. foetida was found to be 0.63 ± 0.022 for mineral soil [46]. A 0.05 fraction of gut content remaining after 24 h depuration has been reported for E. foetida , a value similar to the fraction of gut content (0.056 ± 0.021) remaining for Eisenia Andrei after 24 h depuration [47]. However, the slightly higher values observed for the protein coated-FLG treatment compared to the uncoated FLG suggest that soil remaining in the gut cannot fully explain the uptake results (Fig.…”

Section: Discussionmentioning

confidence: 97%

Exposure of few layer graphene to Limnodrilus hoffmeisteri modifies the graphene and changes its bioaccumulation by other organisms

Mao

Liu

Lü

et al. 2016

Carbon

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While graphene has substantial commercial promise, numerous aspects regarding its ecological effects such as its potential for bioaccumulation are not well known. 14C-labeled few layer graphene (FLG) was dispersed in artificial freshwater and uptake of FLG by Limnodrilus hoffmeisteri, an oligochaete, was assessed. After exposure for 36 h to a 1 mg/L FLG suspension, the FLG body burden in the organism was nearly 60 ng/mg (on a dry mass basis). Multiple characterization results confirmed that the proteins secreted by the organisms during the exposure period coated the FLG, thus increasing its stability and decreasing its size in suspension. Uptake behaviors of Eisenia foetida exposed to FLG and protein-coated FLG at concentrations of approximately 1 mg/kg or to Daphnia magna at 100 μg/L were also quantified. Protein-coated FLG demonstrated different bioaccumulation behaviors for both organisms compared to uncoated FLG, with the FLG body burden in E. foetida increased but that in D. magna reduced. The data provide the first evidence that the proteins secreted by Limnodrilus hoffmeisteri after exposure to FLG can coat FLG, thus increasing the aqueous stability of FLG, decreasing its size, and changing its bioaccumulation potential.

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Section: Discussionmentioning

confidence: 97%

Exposure of few layer graphene to Limnodrilus hoffmeisteri modifies the graphene and changes its bioaccumulation by other organisms

Mao

Liu

Lü

et al. 2016

Carbon

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“…The uptake and elimination of hydrophobic compounds by organisms can be described by monophasic and biphasic kinetics depending on test chemical, organism species, and the environment . According to Belfroid's research, chlorobenzenes in earthworm ( Eisenia andrei ) cultivated with artificial soil (Organization for Economic Co‐operation and Development (OECD) soil) followed a biphasic elimination, whereas the elimination was monophasic when the earthworms were kept in water .…”

Section: Introductionmentioning

confidence: 99%

Enantioselective Kinetics of α‐Hexachlorocyclohexane in Earthworm (Eisenia fedtia) and Forest Soil

Zhou

Liu

et al. 2012

Chirality

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The enantioselective bioaccumulation and elimination behaviors of α-hexachlorocyclohexane (α-HCH) enantiomers in earthworm and soil were investigated by chiral gas chromatography. Enantiomer fraction values were calculated as indicators of the enantioselectivity. The mature earthworms were exposed to 0.10 µg g(-1)(wwt) (0.14 µg g(-1)(dwt)) spiked soil continuously for the bioaccumulation, and the elimination was conducted after an enrichment period in the soil. The results showed that both the bioaccumulation and elimination processes followed monophasic kinetics, body residues of α-HCH in earthworm increased to high level at the fifth day, and enantioselectivity was found in the bioaccumulation process with the rate constant (k) of 0.80 d(-1) for (+)-α-HCH and 0.74 d(-1) for (-)-α-HCH. The half life (t(1/2)) of the enantiomers obtained in the elimination process was within one day. The bioaccumulation factors of steady state of α-HCH enantiomers were 2.82 for (+)-α-HCH and 2.75 for (-)-α-HCH. The enantiomer fractions of earthworm and soil obviously below 0.5 during uptake and elimination processes indicate significant enantioselectivity and preferential depuration of (+)-α-HCH in earthworm. However, earthworms do not have a great capacity for getting rid of α-HCH in polluted soil shown by a contradistinctive experiment.

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“…In addition the test animals are kept in a plastic pot with that make the worms have no choice for food to consume other than the carbofuran-polluted manure. In natural soil habitat, in fact, the worm does not feed on soil indiscriminately but is able to select an organic matter-enriched diet from the medium [16]. In Eisenia fetida when food quality changed, not only the growth rate of the worms affected, but cocoons production and hatchlings produced significatly decrease as well [17].…”

Section: Resultsmentioning

confidence: 99%

Inhibitory Effect of Carbofuran Furadan 3G on the Cocoon Production and Viability in Pheretima javanica Gates

Nofyan¹,

Lamin²,

Patriot³

et al. 2017

IOSR JESTFT

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Feeding activity of the earthworm Eisenia andrei in artificial soil

Cited by 41 publications

References 27 publications

Exposure of few layer graphene to Limnodrilus hoffmeisteri modifies the graphene and changes its bioaccumulation by other organisms

Exposure of few layer graphene to Limnodrilus hoffmeisteri modifies the graphene and changes its bioaccumulation by other organisms

Enantioselective Kinetics of α‐Hexachlorocyclohexane in Earthworm (Eisenia fedtia) and Forest Soil

Inhibitory Effect of Carbofuran Furadan 3G on the Cocoon Production and Viability in Pheretima javanica Gates

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