nanoparticles; soil; wheat; clover; micro-organisms; mycorrhiza; rhizobia; agriculture
Kah Melanie, Kookana Rai Singh, Gogos Alexander, Bucheli Thomas Daniel (2018), A critical evaluation of nanopesticides and nanofertilizers against their conventional analogues, in Nature Nanotechnology
, 13(8), 677-684.
Moll Janine, Klingenfuss Florian, Widmer Franco, Gogos Alexander, Bucheli Thomas Daniel, van der Heijden Marcel G.A. (2017), Effects of titanium dioxide nanoparticles on soil microbial communities and wheat biomass, in Soil Biology & Biochemistry
, 111, 85-93.
Goldberg Eli, McNew Coy, Scheringer Martin, Bucheli Thomas D., Nelson Peter, Hungerbühler Konrad (2017), What Factors Determine the Retention Behavior of Engineered Nanomaterials in Saturated Porous Media?, in Environmental Science & Technology
, 51(5), 2729-2737.
Petersen Elijah J., Flores-Cervantes D. Xanat, Bucheli Thomas D., Elliott Lindsay C. C., Fagan Jeffrey A., Gogos Alexander, Hanna Shannon, Kägi Ralf, Mansfield Elisabeth, Bustos Antonio R. Montoro, Plata Desiree L., Reipa Vytas, Westerhoff Paul, Winchester Michael R. (2016), Quantification of Carbon Nanotubes in Environmental Matrices: Current Capabilities, Case Studies, and Future Prospects, in Environmental Science & Technology
, 50(9), 4587-4605.
Moll J., Gogos A., Bucheli T.D., Widmer F., van der Heijden M.G.A. (2016), Effect of nanoparticles on red clover and its symbiotic microorganisms, in J. Nanobiotechnol.
, 14, 36.
Moll J., Okupnik A., Gogos A., Knauer K., Bucheli T.D., van der Heijden M.G.A., Widmer F. (2016), Effects of titanium dioxide nanoparticles on red clover and its rhizobial symbiont, in PLOS ONE
, 11(5), e0155111.
Gogos A., Moll J., Klingenfuss F., van der Heijden M.G.A., Irin F., Green M.J., Zenobi R., Bucheli T.D. (2016), Vertical transport and plant uptake of nanoparticles in a soil mesocosm experiment, in J. Nanobiotechnol.
, 14, 40.
Goldberg Eli, Scheringer Martin, Bucheli Thomas D., Hungerbühler Konrad (2015), Prediction of nanoparticle transport behavior from physicochemical properties: machine learning provides insights to guide the next generation of transport models, in Environmental Science: Nano
, 2(4), 352-360.
Gogos A., Kaegi R., Zenobi R., Bucheli T.D. (2014), Capabilities of asymmetric flow field-flow fractionation coupled to multi-angle light scattering to differentiate between carbon nanotubes and soot in soil, in Environ. Sci. Nano
, 1, 584-594.
Goldberg E., Scheringer M., Bucheli T.D., Hungerbühler K. (2014), Critical assessment of models for transport of engineered nanoparticles in saturated porous media., in Environ. Sci. Technol.
, 48, 12732-12741.
Mortimer M., Gogos A., Bartolome N., Kahru A., Bucheli T.D., Slaveykova V.I. (2014), Potential of hyperspectral imaging microscopy for semi-quantitative analysis of nanoparticle uptake by protozoa, in Environ. Sci. Technol.
, 48, 8760-8767.
Gogos A., Bucheli T.D., Knauer K. (2013), Nano-approaches in plant protection products and fertilizers. Myths, opportunities and risks., in NewagInternational
, March/April, 40-45.
Gogos A., Knauer K., Bucheli T.D (2012), Nanomaterials in plant protection and fertilization: current state, foreseen applications and research priorities, in J. Agric. Food Chem.
, 60, 9781-9792.
The addition of synthetic nanoparticles (NP) to formulated plant protection products and fertilizers in agriculture may lead to a reduced use and impact of pesticides and fertilisers in the environment and may increase crop productivity. However, before these advantages can come into play, the risks of nanomaterials for the environment and crops have to be defined to ensure their sustainable and beneficial application.The primary aim of NANOMICROPS is to provide data for risk evaluation of agricultural NP applications. Specifically it will be tested 1) whether NP accumulate in soils, soil microbes, and crops, and 2) whether NP affect microbial population structure and key ecological functions performed by symbiotic soil microbes, in particular nitrogen (N) fixation and phosphorus (P) acquisition, and 3) whether NP affect crop performance, specifically crop yield and quality. Special attention will be paid to two groups of plant root symbionts, i.e. P-supplying ar-buscular mycorrhizal fungi (AMF) and N-fixing bacteria (rhizobia). These beneficial soil microbes are abundant in soil and play key roles in agricultural and natural ecosystems by acquiring limiting nutrients and supporting plant growth. The impact of NP on these soil microbes has not been investigated yet, despite their abundance and ecological importance.NP exposure, fate and effect studies will be performed in experimental settings of increasing complexity, from laboratory cultures over controlled pot experiment to lysimeter studies with real soils. Two agricultural crops, i.e. wheat and clover, and two groups of symbiotic soil microbes, i.e. AMF and rhizobia, will be used. A set of representative agricultural soils will be chosen. Fresh or sterilized soils with or without AMF and rhizobia inoculations will be used. NP which we consider potentially relevant for the agro-environment (e.g., TiO2, Carbon Nanotubes) will be added in increasing concentrations as spray or liquid to crop or soil surfaces, or be mixed homogenously with soil. Several analytical methods will be developed to monitor NP in soil, soil leachate, microbes, and plants. A series of biological endpoints (e.g., microbial biomass, community structure, N-fixation, P-acquisition, crop productivity) will be determined throughout the experiments. These are accompanied by traditional chemical and physical soil parameters to provide essential background information on the systems. Experiments will last from several weeks to full crop cultivation periods.The results of this project will contribute to a better understanding of the fate of NP in agro-environmental systems, and their effects on soil microbes and crop. NANOMICROPS will provide ecotoxicological relevant information on exposure and effects of NP as basis for a comprehensive risk assessment.