Nanoencapsulation Boosts the Copper-Induced Defense Responses of a Susceptible Coffea arabica Cultivar against Hemileia vastatrix
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Published:2023-01-26
Issue:2
Volume:12
Page:249
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ISSN:2079-6382
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Container-title:Antibiotics
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language:en
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Short-container-title:Antibiotics
Author:
Gomes Diego G.12ORCID, Sanada Karina2, Pieretti Joana C.3, Shigueoka Luciana H.4, Sera Gustavo H.4ORCID, Seabra Amedea B.3ORCID, Oliveira Halley C.2ORCID
Affiliation:
1. Department of Agronomy, State University of Londrina UEL, Londrina 86057-970, Brazil 2. Department of Animal and Plant Biology, State University of Londrina UEL, Londrina 86057-970, Brazil 3. Center for Natural and Human Sciences, Federal University of ABC (UFABC), Avenida dos Estados, Santo André 09210-580, Brazil 4. Rural Development Institute of Parana—IAPAR-EMATER (IDR-Parana), Londrina 86047-902, Brazil
Abstract
Due to the environmental risks of conventional Cu-based fungicides, Cu-loaded chitosan nanoparticles have been developed as nano-pesticides, aiming to protect plants against different diseases. In this sense, the objective was to verify the effects of chitosan nanoparticles containing Cu2+ ions on leaf discs of Coffea arabica cv. IPR 100 infected with Hemileia vastatrix. The treatments were water as a control (CONT), unloaded chitosan nanoparticles (NP), chitosan nanoparticles containing Cu2+ ions (NPCu), and free Cu2+ ions (Cu). Different concentrations of NP (0.25; 0.5; 1 g L−1) and Cu2+ ions (1.25; 2.5; 5 mmol L−1) were tested. The severity of the coffee rust was 42% in the CONT treatment, 22% in NP, and 2% in NPCu and Cu. The treatments protected coffee leaves; however, NPCu stood out for initial stress reduction, decreasing Cu phytotoxicity, promoting photosynthetic activity maintenance, and increasing antioxidant responses, conferring significant protection against coffee rust. At low concentrations (1.25 mmol L−1), NPCu showed higher bioactivity than Cu. These results suggest that Cu-loaded chitosan nanoparticles can induce a more significant plant defense response to the infection of Hemileia vastatrix than conventional Cu, avoiding the toxic effects of high Cu concentrations. Thus, this nanomaterial has great potential to be used as nano-pesticides for disease management.
Funder
The Coordination for the Improvement of Higher Education Personnel—CAPES National Council for Scientific and Technological Development—CNPq São Paulo Research Foundation—FAPESP
Subject
Pharmacology (medical),Infectious Diseases,Microbiology (medical),General Pharmacology, Toxicology and Pharmaceutics,Biochemistry,Microbiology
Reference52 articles.
1. Cui, L., Hanika, K., Visser, R.G.F., and Bai, Y. (2020). Improving Pathogen Resistance by Exploiting Plant Susceptibility Genes in Coffee (Coffea spp.). Agronomy, 10. 2. Gichuru, E., Alwora, G., Gimase, J., and Kathurima, C. (2021). Coffee leaf rust (Hemileia vastatrix) in Kenya—A Review. Agronomy, 11. 3. Soares, A.D.S., Viera, B.S., Bezerra, T.A., Martins, G.D., and Siquieroli, A.C.S. (2022). Early detection of coffee leaf rust caused by Hemileia vastatrix using multispectral images. Agronomy, 12. 4. Silva, M.D.C., Guerra-Guimarães, L., Diniz, I., Loureiro, A., Azinheira, H., Pereira, A.P., Tavares, S., Batista, D., and Várzea, V. (2022). An overview of the mechanisms involved in coffee-Hemileia vastatrix interactions: Plant and pathogen perspectives. Agronomy, 12. 5. Photosynthetic and antioxidative alterations in coffee leaves caused by epoxiconazole and pyraclostrobin sprays and Hemileia vastatrix infection;Zambolim;Pestic. Biochem. Phys.,2015
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