Antibacterial activity of chitosan/thyme essential oil/Copper nano-complexes against Pseudomonas syringae pv. syringae

نوع مقاله : گزارش کوتاه-انگلیسی

نویسندگان

1 Assistant Professor, Cell and Molecular Biology Department, Kosar University of Bojnord, Bojnord, Iran

2 M.Sc., North Khorasan Agricultural and Natural Resources Research and Education Center, Bojnourd, Iran

10.22055/ppr.2025.48722.1786

موضوعات

عنوان مقاله [English]

Antibacterial activity of chitosan/thyme essential oil/Copper nano-complexes against Pseudomonas syringae pv. syringae

نویسندگان [English]

  • M. Azarakhsh 1
  • M. Gerivani 2
1 Assistant Professor, Cell and Molecular Biology Department, Kosar University of Bojnord, Bojnord, Iran
2 M.Sc., North Khorasan Agricultural and Natural Resources Research and Education Center, Bojnourd, Iran
چکیده [English]

Pseudomonas syringae pv. syringae (Pss) is the causal agent of bacterial canker disease in stone, pome and kiwi fruit trees, which causes much damage to these hosts. Using biodegradable nanoparticle complexes is a new approach against bacterial cankers. This research investigated the antibacterial activity of chitosan nanoparticles (CNPs)/Copper/thyme essential oil (EO) nano-complexes against this bacterium. In this regard, the physicochemical characteristics of chitosan nanoparticles and nano-complexes were analyzed by dynamic light scattering (DLS) and Fourier-transform infrared spectroscopy (FTIR) methods. The DLS results showed that the nanoparticles had unimodal size distribution with an average particle size of 190 to 254 nm. The FTIR analysis confirmed the interaction among the components of nano-complexes. To evaluate the antibacterial activity of the nano-complexes, the minimum inhibitory concentration (MIC) was measured against Pss. The results showed that the nano-complexes had relatively high antibacterial activity against Pss compared to their components. In particular, the nano-complexes showed the lower MIC value and, therefore, higher antibacterial activity compared to thyme EO, Copper, and CNPs alone. These results suggest a synergistic interaction among the components, indicating that the nano-complexes could be a promising eco-friendly option for controlling bacterial canker disease caused by Pss. Further research is needed to study the effectiveness of these compounds in the field and to investigate the long-term environmental effects.

کلیدواژه‌ها [English]

  • Plant protection
  • Nano-complexes
  • Bacterial canker
  • Pseudomonas syringae

مراجع

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 © 2025 by the authors. Licensee SCU, Ahvaz, Iran. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0 license) (http://creativecommons.org/licenses/by-nc/4.0/.
گیاه پزشکی
دوره 48، شماره 2
خرداد 1404
صفحه 1-11

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