Influence of Various Biochars on the Survival, Growth, and Oxidative DNA Damage in the Earthworm Eisenia Fetida

Effects of biochar on the fate and toxicity of herbicide fenoxaprop-ethyl in soil

“…No death was observed in the solvent control group biochar-amended soil at the end of the test. The results show that the toxicity of biochar to earthworms was limited, which was similar to that of the previous literature [ 22 ]. It has been reported that all the earthworms survived after 28-day incubation in soil amended with different kinds of biochar at a rate of 5% [ 22 ].…”

“…The results show that the toxicity of biochar to earthworms was limited, which was similar to that of the previous literature [ 22 ]. It has been reported that all the earthworms survived after 28-day incubation in soil amended with different kinds of biochar at a rate of 5% [ 22 ]. Earthworms would selectively ingest soil and avoid ingesting biochar [ 30 ].…”

“…Effects of biochar on soil properties may bring negative and positive effects on earthworms. There has been research on the effects of biochar addition on the survival of earthworms [ 19 , 21 , 22 ]. However, the study of combined toxicity effects of biochar application and pesticides to earthworms has been very limited.…”

Bioaccumulation of CeO2 Nanoparticles by Earthworms in Biochar-Amended Soil: A Synchrotron Microspectroscopy Study

“…Results from the BC-600 treatments showed minimal effects on lipid peroxidation; the only significant differences across both soils were in earthworms exposed to BC-600 at 5% (Figure S3B and Results and Discussion of the Supporting Information). Previous studies have reported a higher oxidative DNA damage [measured by 8-hydroxydoxyguanosine (8-OHdG) and catalase (CAT) activities] in earthworms exposed to soil amended with biochar produced at 550 °C in comparison to biochar produced at 350 °C, with the authors suggesting that the toxicity from the higher temperature char was due to an increased pH and metalloid content . Li et al reported a lack of lipid peroxidation and no increase in superoxide dismutase activity in E.…”

“…Previous studies have reported a higher oxidative DNA damage [measured by 8hydroxydoxyguanosine (8-OHdG) and catalase (CAT) activities] in earthworms exposed to soil amended with biochar produced at 550 °C in comparison to biochar produced at 350 °C, with the authors suggesting that the toxicity from the higher temperature char was due to an increased pH and metalloid content. 34 Li et al 24 reported a lack of lipid peroxidation and no increase in superoxide dismutase activity in E. fetida in the presence of biochar produced at ∼400 °C from apple wood chips. 24 In the current study, the MDA content did not show excessive or consistent changes with treatment; however, results did show that, in some cases, earthworms from BC-600 treatments had increased lipid peroxidation with high exposure (5%), while the opposite was observed in BC-350 treatments, where the observed peroxidation effects were largely in treatments with no biochar exposure (0%).…”