Representativeness of Folsomia candida to assess toxicity of a new generation insecticide in different temperature scenarios

Ferreira, Patrícia; Gabriel, Antonieta; Sousa, José Paulo; Natal-da-Luz, Tiago

doi:10.1016/j.scitotenv.2022.155712

Cited by 11 publications

(6 citation statements)

References 34 publications

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“…The species is easy to maintain in the laboratory and has been used as a “standard” test organism for more than 50 years in the fields of population biology, evolutionary ecology, soil biology and ecotoxicology (ISO 11267: 2014 ). In addition, F. candida is increasingly being used in bioassays of soil remediation methods (González et al, 2011 ; Lin et al, 2020 ) and risk assessments of industrial chemicals and genetically modified crops (Ferreira et al, 2022 ; Huang et al, 2019 ).…”

Section: Introductionmentioning

confidence: 99%

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High‐quality genomes reveal significant genetic divergence and cryptic speciation in the model organism Folsomia candida (collembola)

Luan

Cui

Chen

et al. 2022

Molecular Ecology Resources

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The collembolan Folsomia candida Willem, 1902, is widely distributed throughout the world and has been frequently used as a test organism in soil ecology and ecotoxicology studies. However, it is questioned as an ideal “standard” because of differences in reproductive modes and cryptic genetic diversity between strains from various geographical origins. In this study, we obtained two high‐quality chromosome‐level genomes of F. candida, for a parthenogenetic strain (named FCDK, 219.08 Mb, 25,139 protein‐coding genes) and a sexual strain (named FCSH, 153.09 Mb, 21,609 protein‐coding genes), reannotated the genome of the parthenogenetic strain reported by Faddeeva‐Vakhrusheva et al. in 2017 (named FCBL, 221.7 Mb, 25,980 protein‐coding genes) and conducted comparative genomic analyses of the three strains. High genome similarities between FCDK and FCBL based on synteny, genome architecture, mitochondrial and nuclear gene sequences suggest that they are conspecific. The seven chromosomes of FCDK are each 25%–54% larger than the corresponding chromosomes of FCSH, showing obvious repetitive element expansions and large‐scale inversions and translocations but no whole‐genome duplication. The strain‐specific genes, expanded gene families and genes in nonsyntenic chromosomal regions identified in FCDK are highly related to the broader environmental adaptation of parthenogenetic strains. In addition, FCDK has fewer strain‐specific microRNAs than FCSH, and their mitochondrial and nuclear genes have diverged greatly. In conclusion, FCDK/FCBL and FCSH have accumulated independent genetic changes and evolved into distinct species after 10 million years ago. Our work provides important genomic resources for studying the mechanisms of rapidly cryptic speciation and soil arthropod adaptation to soil ecosystems.

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Section: Introductionmentioning

confidence: 99%

“…In addition, F. candida is increasingly being used in bioassays of soil remediation methods (González et al, 2011;Lin et al, 2020) and risk assessments of industrial chemicals and genetically modified crops (Ferreira et al, 2022;Huang et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

High‐quality genomes reveal significant genetic divergence and cryptic speciation in the model organism Folsomia candida (collembola)

Luan

Cui

Chen

et al. 2022

Molecular Ecology Resources

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“…Results of an analysis of reproduction in the study by Lavtizar et al (2016) found that soils with high organic matter contents produced higher (less toxic) reproductive inhibition EC50s whereas those with lower soil organic matter content had lower (more toxic) EC50s. Ferreira et al (2022) observed that F. candida was more sensitive to chlorantraniliprole (LC50 = 0.17 mg/kg soil dry wt) compared with three other springtail species. An increase in temperature from 20 °C to 25 °C resulted in a decrease in LC50s for F. candida (LC50 = 0.27 mg/kg soil dry wt; Ferreira et al, 2022).…”

Section: Discussionmentioning

confidence: 99%

“…Ferreira et al (2022) observed that F. candida was more sensitive to chlorantraniliprole (LC50 = 0.17 mg/kg soil dry wt) compared with three other springtail species. An increase in temperature from 20 °C to 25 °C resulted in a decrease in LC50s for F. candida (LC50 = 0.27 mg/kg soil dry wt; Ferreira et al, 2022).…”

Section: Discussionmentioning

confidence: 99%

Comparison of Established and Novel Insecticides on Survival and Reproduction ofFolsomia candida

Martin

Sibley

Prosser

2023

Enviro Toxic and Chemistry

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Neonicotinoids have been among the most widely and abundantly used insecticides for most of the current century. The effects of these substances on nontarget terrestrial and aquatic organisms have resulted in a significant decrease in their use in many parts of the world. In response, the application of several novel classes of insecticides including diamides, ketoenols, pyridines, and butenolides has significantly increased. The hexapod subclass Collembola is an ecologically significant and widely distributed group of soil invertebrates often found in leaf litter and in surficial soils. We exposed the parthenogenic collembolan species Folsomia candida to six insecticides in a sandy loam soil for 28 days, including two neonicotinoids (thiamethoxam and clothianidin), a diamide (cyantraniliprole), a ketoenol (spirotetramat), a pyridine (flonicamid), and a butanolide (flupyradifurone) to assess the effect of each insecticide on survival and reproduction. Clothianidin, thiamethoxam, and cyantraniliprole (median effective concentration [EC50] values for reproduction: 0.19, 0.38, and 0.49 mg/kg soil, respectively) had a greater effect on survival and reproduction of F. candida than flupyradifurone, spirotetramat, and flonicamid (EC50 values for reproduction: 0.73, >3.08, and 5.20 mg/kg soil, respectively). All significant impacts found in our study were observed at concentrations below concentrations of the active ingredients that would be expected in agricultural soils.

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“…The comparisons of sensitivity of Collembola species (i.e., F. candida, F. fimetaria , Sinella curviseta , Protaphorura fimata , Proisotoma minuta , Heteromurus nitidus ) showed that F. candida tends to be among the most sensitive species tested, but the relative sensitivity may vary with the mode of action of the test substance (for details, see Bandow, Coors, et al [2014], Bandow, Karau, et al [2014], Carniel [2019], Ferreira et al [2022], De Lima e Silva et al [2021]). This confirms the conclusions of the EFSA (2017) that F. candida or F. fimetaria could be representative of other springtails with regard to their toxicological sensitivity.…”

Section: Purpose and Objectivesmentioning

confidence: 99%

Intermediate‐tier options in the environmental risk assessment of plant protection products for soil invertebrates—Synthesis of a workshop

Ernst

Amorim

Bottoms

et al. 2023

Integr Envir Assess & Manag

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The European environmental risk assessment (ERA) of plant protection products follows a tiered approach. The approach for soil invertebrates currently consists of two steps, starting with a Tier 1 assessment based on reproduction toxicity tests with earthworms, springtails, and predatory mites. In case an unacceptable risk is identified at Tier 1, field studies can be conducted as a higher tier option. For soil invertebrates, intermediate tiers are not implemented. Hence, there is limited possibility to include additional information for the ERA to address specific concerns when the Tier 1 fails, as an alternative to e.g., a field study. Calibrated intermediate tier approaches could help to address risks for soil invertebrates with less time and resources but also with sufficient certainty. A multi‐stakeholder workshop was held on 2nd to 4th of March 2022 to discuss potential intermediate tier options, focusing on four possible areas: 1) natural soil testing, 2) single species tests (other than standard species), 3) assessing recovery in laboratory tests, and 4) the use of assembled soil multi‐species test systems. The participants acknowledged a large potential in the intermediate tier options but concluded that some issues need to be clarified before routine application of these approaches in the ERA is possible, i.e., sensitivity, reproducibility, reliability, and standardization of potential new test systems. The definition of suitable assessment factors needed to calibrate the approaches to the Protection Goals was acknowledged. The aims of the workshop were to foster scientific exchange and a data driven dialog, to discuss how the different approaches could be used in the risk assessment, and to identify research priorities for future work to address uncertainties and strengthen the tiered approach in the ERA for soil invertebrates. This paper outlines the background, proposed methods, technical challenges, difficulties and opportunities in the ERA, and conclusions of the workshop.

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Representativeness of Folsomia candida to assess toxicity of a new generation insecticide in different temperature scenarios

Cited by 11 publications

References 34 publications

High‐quality genomes reveal significant genetic divergence and cryptic speciation in the model organism Folsomia candida (collembola)

High‐quality genomes reveal significant genetic divergence and cryptic speciation in the model organism Folsomia candida (collembola)

Comparison of Established and Novel Insecticides on Survival and Reproduction ofFolsomia candida

Intermediate‐tier options in the environmental risk assessment of plant protection products for soil invertebrates—Synthesis of a workshop

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