Reduced graphene oxide-based nanometal-composite containing copper and silver nanoparticles protect tomato and pepper against Xanthomonas euvesicatoria infection

0564588 - ÚACH 2023 RIV GB eng J - Journal Article
Bytešníková, Z. - Pečenka, J. - Tekielska, D. - Kiss, T. - Švec, P. - Ridošková, A. - Bezdička, Petr - Pekárková, J. - Eichmeier, A. - Pokluda, R. - Adam, V. - Richtera, L.
Reduced graphene oxide-based nanometal-composite containing copper and silver nanoparticles protect tomato and pepper against Xanthomonas euvesicatoria infection.
Chemical and Biological Technologies in Agriculture. Roč. 9, č. 1 (2022), č. článku 84. E-ISSN 2196-5641
R&D Projects: GA MŠMT(CZ) LM2018124
Research Infrastructure: CzechNanoLab - 90110; CIISB II - 90127
Institutional support: RVO:61388980
Keywords : Bacterial spot disease * Graphene oxide * Nanoparticles * Silver * Solanum lycopersicum
OECD category: Inorganic and nuclear chemistry
Impact factor: 6.6, year: 2022
Method of publishing: Open access

Xanthomonas euvesicatoria (Xe) is of the genera Xanthomonas, which causes a bacterial spot disease that affects tomato and pepper plants, resulting in significant economic losses. Commonly used bactericides lead to pathogen resistance, environmental contamination and a current risk to human health. Herein, a nanocomposite consisting of Cu and Ag loaded onto reduced graphene oxide (rGO) was synthesized, characterized and tested. After confirmation of the antibacterial properties in vitro, nanocomposites at concentrations of 50 and 500 mu g mL(-1) were applied to protect tomato and pepper plants under controlled greenhouse conditions. The tomato and pepper plants indicated significantly lower disease severity when treated with the nanocomposite (15.6 and 16.7%, respectively) than when treated with the commercial copper-based bactericide Kocide (R) 2000. The nanocomposite was demonstrated as a high-efficiency biocide and has the potential for crop disease management with no phytotoxic effect.
Permanent Link: https://hdl.handle.net/11104/0336255