Antifungal activities of chitosan nanoparticles against Fusarium pseudensiforme on durian trees

IF 1.7 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Advances in Natural Sciences: Nanoscience and Nanotechnology Pub Date : 2024-08-28 DOI:10.1088/2043-6262/ad6e5d

Hoang Ngoc Cuong, Nguyen Thi Kim Cuc, Le Thi Tinh, Nguyen Van Hoa

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Abstract

Antifungal nano-biomaterials are gaining interest as an effective strategy for controlling fungal pathogens because of their nontoxicity, biodegradability, biocompatibility, and high activity. The study aimed to present an antifungal agent, squid chitosan nanoparticles (SCNs), against the Fusarium pseudensiforme pathogen in durian trees. Besides, the in vitro antifungal activity of SCNs was compared to other agents, including neem oil and squid pen chitosan. All biomaterials showed a decrease in mycelial growth as their treated concentrations increased. However, at the same concentration of 250 ppm after 8 days of incubation at 28 °C, SCNs exhibited the highest in totally inhibiting the growth of Fusarium pseudensiforme, while the lesion diameters were 2.5 cm (neem oil) and 2.1 cm (chitosan). Besides, the lowest dried biomass was obtained after 8 days of incubation in broth culture at 250 ppm of the SCNs. The findings suggested that SCNs could be used as an effective alternative nano-biomaterial for controlling the Fusarium pseudensiforme pathogen in durian trees.

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壳聚糖纳米颗粒对榴莲假镰刀菌的抗真菌活性

抗真菌纳米生物材料因其无毒性、生物可降解性、生物相容性和高活性，作为控制真菌病原体的一种有效策略，正受到越来越多的关注。本研究旨在提出一种抗真菌剂--乌贼壳聚糖纳米颗粒（SCNs），用于防治榴莲树上的假鳞镰刀菌病原体。此外，还将 SCNs 的体外抗真菌活性与其他制剂（包括印楝油和乌贼笔壳聚糖）进行了比较。随着处理浓度的增加，所有生物材料的菌丝生长都有所减少。然而，在 28 °C 下培养 8 天后，在 250 ppm 的相同浓度下，SCNs 对假镰刀菌生长的完全抑制率最高，而病变直径分别为 2.5 厘米（印楝油）和 2.1 厘米（壳聚糖）。此外，在肉汤培养基中添加 250 ppm 的 SCN，培养 8 天后获得的干生物量最低。研究结果表明，SCNs 可作为一种有效的替代纳米生物材料，用于控制榴莲树上的假镰刀菌病原体。

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Advances in Natural Sciences: Nanoscience and Nanotechnology NANOSCIENCE & NANOTECHNOLOGYMATERIALS SCIE-MATERIALS SCIENCE, MULTIDISCIPLINARY

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