Copper nanoparticles hold promise in the effective management of maize diseases without impairing environmental health
Abstract A novel method of management of maize pathogens in vitro and in vivo using newly synthesized copper nanoparticles (CuNPs) has been documented in this study. CuNPs have been synthesized using $ CuSO_{4} $ as a precursor, $ NaBH_{4} $ and ascorbic acid as a reducing agent, and polyethylene glycol 8000 (PEG-8000) as a stabilizing agent. Characterization of CuNPs using a Transmission Electron Microscope (TEM) confirmed the nanoparticles’ size range of 35–70 nm. Fourier transform infrared spectroscopy (FTIR) revealed the association of alcohol groups and allyl halides group with CuNPs. The synthesized CuNPs exhibited significant inhibition at 20 ppm of three pathogenic fungi namely Macrophomina phaseolina, Bipolaris maydis, and Fusarium verticillioides, and at 50 ppm against Rhizoctonia solani. Bactericidal property of CuNPs was evidenced against Erwinia carotovora and Ralstonia solanacearum at 30 ppm. Evaluation of CuNPs in vivo against two diseases viz., maydis leaf blight (MLB) and banded leaf and sheath blight (BLSB) culminated in a reduction in percent disease index (PDI). Seed treatment together with foliar spray 300 ppm of CuNPs resulted in a significant reduction of MLB. However, BLSB disease was reduced relatively less at the same aforesaid concentration nevertheless, it was evinced best in controlling BLSB disease. CuNPs were found inimical against beneficial fungi and bacteria. However, a positive effect was observed on soil enzyme activities namely dehydrogenase, urease, and alkaline phosphatase and maize seedling characters viz., shoot length, root length, number of roots per seedlings, fresh and dry weight..
| Medienart: |
Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:51 |
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| Enthalten in: |
Phytoparasitica - 51(2023), 3 vom: 15. Apr., Seite 593-619 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Dorjee, Lham [VerfasserIn] |
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| Links: |
Volltext [lizenzpflichtig] |
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| Anmerkungen: |
© The Author(s), under exclusive licence to Springer Nature B.V. 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
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| doi: |
10.1007/s12600-023-01060-3 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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OLC2143784066 |
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| 520 | |a Abstract A novel method of management of maize pathogens in vitro and in vivo using newly synthesized copper nanoparticles (CuNPs) has been documented in this study. CuNPs have been synthesized using $ CuSO_{4} $ as a precursor, $ NaBH_{4} $ and ascorbic acid as a reducing agent, and polyethylene glycol 8000 (PEG-8000) as a stabilizing agent. Characterization of CuNPs using a Transmission Electron Microscope (TEM) confirmed the nanoparticles’ size range of 35–70 nm. Fourier transform infrared spectroscopy (FTIR) revealed the association of alcohol groups and allyl halides group with CuNPs. The synthesized CuNPs exhibited significant inhibition at 20 ppm of three pathogenic fungi namely Macrophomina phaseolina, Bipolaris maydis, and Fusarium verticillioides, and at 50 ppm against Rhizoctonia solani. Bactericidal property of CuNPs was evidenced against Erwinia carotovora and Ralstonia solanacearum at 30 ppm. Evaluation of CuNPs in vivo against two diseases viz., maydis leaf blight (MLB) and banded leaf and sheath blight (BLSB) culminated in a reduction in percent disease index (PDI). Seed treatment together with foliar spray 300 ppm of CuNPs resulted in a significant reduction of MLB. However, BLSB disease was reduced relatively less at the same aforesaid concentration nevertheless, it was evinced best in controlling BLSB disease. CuNPs were found inimical against beneficial fungi and bacteria. However, a positive effect was observed on soil enzyme activities namely dehydrogenase, urease, and alkaline phosphatase and maize seedling characters viz., shoot length, root length, number of roots per seedlings, fresh and dry weight. | ||
| 650 | 4 | |a Copper nanoparticles | |
| 650 | 4 | |a Plant pathogens | |
| 650 | 4 | |a Maize | |
| 650 | 4 | |a Management | |
| 700 | 1 | |a Gogoi, Robin |4 aut | |
| 700 | 1 | |a Kamil, Deeba |4 aut | |
| 700 | 1 | |a Kumar, Rajesh |4 aut | |
| 700 | 1 | |a Verma, Ankita |4 aut | |
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