Manuscript of toxicokinetics of three agrochemicals in three model bee species: Deliverable D3.1
Laen...
Kuupäev
2022
Kättesaadav alates
Autorid
Costa, Cecilia
Di Prisco, Gennaro
Alaux, Cedric
Onorati, Piero
Jürison, Margret
Karise, Reet
Mänd, Marika
Hellström, Sara
Medrzycki, Piotr
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
PoshBee
Abstrakt
As part of the activities foreseen by the POSHBEE project, we performed experiments to verify the
toxicokinetics of three pesticides (the insecticide sulfoxaflor, the fungicide azoxystrobin and the
herbicide glyphosate) in the bodies of social bees (Apis mellifera and Bombus terrestris) and solitary
bees (Osmia bicornis). For each species all castes and sexes were studied. Based on the results from
dose-response assays, sublethal doses were used to treat individuals, which were exposed to the
chosen pesticides orally and by contact. Bees were then sampled at multiple time points post-
exposure, to capture the breakdown of the active ingredients in the bodies of the organisms. Results
of the chemical analyses on bee samples were used for the evaluation of the dynamics of the oral
and contact acute exposure in the three species. Overall, the active ingredients sulfoxaflor, azoxystrobin and glyphosate degrade in all species, sex or
caste. Nevertheless, there were some exceptions: in honey bee workers, glyphosate administered
topically and azoxystrobin administered via the oral route seemed to remain stable in the bees’
bodies even 10 days after exposure (11% and 13% of degradation rate, respectively). We also
observed a low degradation of sulfoxaflor following topical exposure in bumble bee queens (26% of
degradation rate) and in Osmia bee females (22% of degradation rate). In bumble bees exposed
topically to glyphosate degradation was lower than 50% for all sexes and castes. These results
deserve further attention by researchers to understand the destiny of these molecules in the bee
body and their effects therein.
Prepared under contract from the European Commission; Grant agreement No. 773921; EU Horizon 2020 Research and Innovation action.
Prepared under contract from the European Commission; Grant agreement No. 773921; EU Horizon 2020 Research and Innovation action.
Kirjeldus
Märksõnad
honey bees, bumblebees, agrochemicals, toxicokinetic assessment, reports
Viide
Costa, C., Di Prisco, G., Alaux, C., Onorati, P., Jürison M., Reet K.,
Mänd, M., Hellström, S. & Medrzycki, P. (2022). Manuscript of
toxicokinetics of three agrochemicals in three model bee species.
Deliverable D3.1 EU Horizon 2020 PoshBee Project, Grant
agreement No. 773921.