Abstract
The project NANO 2-BEES: exposure and toxicity of 2D-nanomaterials in the plant-pollinator system aims to provide key insights into the exposure and ecotoxicity of 2D-nanomaterials (2DNMs) on the plant-pollinator system. Recent work on plant sexual reproduction has shown that the 2DNM graphene oxide (GO) can affect pollen performance in vitro. In vivo, the presence of GO on reproductive organs impairs seed development and consequently seed germination. Recent work has also shown that GO can be toxic to insects. Nevertheless, there is an alarming lack of data on the effects of 2DNMs on key pollinator species, such as bumblebees, whose populations are already threatened by pesticides and other environmental stressors. NANO 2- BEES aims at filling this information gap by developing innovative approaches and techniques to test the exposure pathways and toxicity of two 2DNMs, i.e. GO and molybdenum disulfide, on a plant-pollinator system made by model and non-model entomophilous plants (Brassica napus, Cucumis sativus, Salvia pratensis) and the model non-target pollinator Bombus terrestris. Specifically, NANO 2-BEES will: 1) verify if 2DNMs administered to plant roots can be translocated along the plant body to nectar; 2) verify whether administered 2DNMs can affect the development of the plant and its reproductive structures, i.e. flowers; 3) evaluate the exposure and translocation of 2DNMs via the air, flowers, individual bumblebees and their nests; 4) assess the toxicity of 2DNMs to both pollen-stigma interactions and to the performance of seeds derived from treated reproductive structures; 5) test the toxicity of 2DNMs alone and in interaction with a common pesticide on a model pollinator species. By elucidating the mechanisms of exposure and the potential toxicological effects, the project aims to inform regulatory frameworks and promote safer use of 2DNMs in agricultural practices.
Dettagli del progetto
Responsabile scientifico: Iris Aloisi
Strutture Unibo coinvolte:
Dipartimento di Scienze Biologiche, Geologiche e Ambientali
Coordinatore:
Università degli Studi di TRIESTE(Italy)
Contributo totale Unibo: Euro (EUR) 44.000,00
Durata del progetto in mesi: 24
Data di inizio
30/11/2023
Data di fine:
28/02/2026
