نوع مقاله : گزارش کوتاه-انگلیسی
نویسندگان
1 گروه زیست شناسی سلولی و مولکولی, دانشکده علوم پایه, دانشگاه کوثر بجنورد
2 مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی خراسان شمالی, بجنورد, ایران
چکیده
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
نویسندگان [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]
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