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Toxicity of imidacloprid to the terrestrial isopod Porcellio scaber (Isopoda, Crustacea).
Chemosphere. 2008 Apr; 71(7):1326-34.C

Abstract

Imidacloprid is a neonicotinoid insecticide with neurotoxic action that, as a possible alternative for commonly used organophosphorus pesticides, has gained registration in about 120 countries for use in over 140 agricultural crops. Only few data are available on its toxicity for soil invertebrates. We therefore assessed the effects of imidacloprid on survival, weight gain, feeding rate, total protein content, glutathione S-transferase activity (GST), and digestive gland epithelial thickness in juveniles and adults of the terrestrial isopod Porcellio scaber. After two weeks of feeding on imidacloprid-dosed food, weight gain (NOEC 5 microg/g dry food) and feeding rate (NOEC 10 microg/g) in juveniles, and feeding rate (NOEC<10 microg/g) and digestive gland epithelial thickness (NOEC<10 microg/g) in adults were most affected. In juveniles induction of GST activity and increase of total protein content per wet animal weight was detected at 5 microg/g dry food, whereas in adults a reduction of GST was observed at 25 microg/g (NOEC 10 microg/g). An estimate of actual intake rates suggests that imidacloprid affects isopods at similar exposure concentrations as insects. The toxicity of imidacloprid was similar to that of the organophosphorus pesticide diazinon, tested earlier using the same methods [Stanek, K., Drobne, D., Trebse, P., 2006. Linkage of biomarkers along levels of biological complexity in juvenile and adult diazinon fed terrestrial isopod (Porcellio scaber, Isopoda, Crustacea). Chemosphere 64, 1745-1752]. At actual environmental concentrations, diazinon poses a higher risk to P. scaber. Due to its increasing use in crop protection and higher persistence in soil, imidacloprid might however, be potentially more dangerous after long-term application. We conclude that toxicity testing with P. scaber provides relevant, repeatable, reproducible and comparable toxicity data that is useful for the risk assessment of pesticides in the terrestrial environment.

Authors+Show Affiliations

University of Ljubljana, Biotechnical Faculty, Department of Biology, Vecna Pot 111, SI-1000 Ljubljana, Slovenia. Damjana.Drobne@bf.uni-lj.si <Damjana.Drobne@bf.uni-lj.si>No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

18190949

Citation

Drobne, Damjana, et al. "Toxicity of Imidacloprid to the Terrestrial Isopod Porcellio Scaber (Isopoda, Crustacea)." Chemosphere, vol. 71, no. 7, 2008, pp. 1326-34.
Drobne D, Blazic M, Van Gestel CA, et al. Toxicity of imidacloprid to the terrestrial isopod Porcellio scaber (Isopoda, Crustacea). Chemosphere. 2008;71(7):1326-34.
Drobne, D., Blazic, M., Van Gestel, C. A., Leser, V., Zidar, P., Jemec, A., & Trebse, P. (2008). Toxicity of imidacloprid to the terrestrial isopod Porcellio scaber (Isopoda, Crustacea). Chemosphere, 71(7), 1326-34. https://doi.org/10.1016/j.chemosphere.2007.11.042
Drobne D, et al. Toxicity of Imidacloprid to the Terrestrial Isopod Porcellio Scaber (Isopoda, Crustacea). Chemosphere. 2008;71(7):1326-34. PubMed PMID: 18190949.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Toxicity of imidacloprid to the terrestrial isopod Porcellio scaber (Isopoda, Crustacea). AU - Drobne,Damjana, AU - Blazic,Mateja, AU - Van Gestel,Cornelis A M, AU - Leser,Vladka, AU - Zidar,Primoz, AU - Jemec,Anita, AU - Trebse,Polonca, Y1 - 2008/01/10/ PY - 2007/07/06/received PY - 2007/11/05/revised PY - 2007/11/15/accepted PY - 2008/1/15/pubmed PY - 2008/6/18/medline PY - 2008/1/15/entrez SP - 1326 EP - 34 JF - Chemosphere JO - Chemosphere VL - 71 IS - 7 N2 - Imidacloprid is a neonicotinoid insecticide with neurotoxic action that, as a possible alternative for commonly used organophosphorus pesticides, has gained registration in about 120 countries for use in over 140 agricultural crops. Only few data are available on its toxicity for soil invertebrates. We therefore assessed the effects of imidacloprid on survival, weight gain, feeding rate, total protein content, glutathione S-transferase activity (GST), and digestive gland epithelial thickness in juveniles and adults of the terrestrial isopod Porcellio scaber. After two weeks of feeding on imidacloprid-dosed food, weight gain (NOEC 5 microg/g dry food) and feeding rate (NOEC 10 microg/g) in juveniles, and feeding rate (NOEC<10 microg/g) and digestive gland epithelial thickness (NOEC<10 microg/g) in adults were most affected. In juveniles induction of GST activity and increase of total protein content per wet animal weight was detected at 5 microg/g dry food, whereas in adults a reduction of GST was observed at 25 microg/g (NOEC 10 microg/g). An estimate of actual intake rates suggests that imidacloprid affects isopods at similar exposure concentrations as insects. The toxicity of imidacloprid was similar to that of the organophosphorus pesticide diazinon, tested earlier using the same methods [Stanek, K., Drobne, D., Trebse, P., 2006. Linkage of biomarkers along levels of biological complexity in juvenile and adult diazinon fed terrestrial isopod (Porcellio scaber, Isopoda, Crustacea). Chemosphere 64, 1745-1752]. At actual environmental concentrations, diazinon poses a higher risk to P. scaber. Due to its increasing use in crop protection and higher persistence in soil, imidacloprid might however, be potentially more dangerous after long-term application. We conclude that toxicity testing with P. scaber provides relevant, repeatable, reproducible and comparable toxicity data that is useful for the risk assessment of pesticides in the terrestrial environment. SN - 0045-6535 UR - https://www.unboundmedicine.com/medline/citation/18190949/Toxicity_of_imidacloprid_to_the_terrestrial_isopod_Porcellio_scaber__Isopoda_Crustacea__ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(07)01469-5 DB - PRIME DP - Unbound Medicine ER -