相关实验视频
Updated: Jul 12, 2025
08:11
Studying Copper Nanoparticle-Induced Programmed Cell Death in Bacteria
Published on: May 16, 2025
133
氧化铜纳米颗粒:一种有效的抑制工具,可以对抗大米的细菌叶病及其对植物的影响
Solabomi Olaitan Ogunyemi1, Jinyan Luo2, Yasmine Abdallah1,3
1State Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou, China.
Pest management science
|October 28, 2023
概括
绿色合成的氧化铜纳米粒子 (CuONPs) 有效地对抗Xanthomonas oryzae pv. (Xoo) 和促进植物生长. 这些纳米杀虫剂显示出可持续农业和粮食安全的前景.
科学领域:
- 纳米技术纳米技术
- 植物病理学 植物病理学
- 绿色合成是一种绿色合成.
背景情况:
- 应对粮食安全挑战需要为可持续农业提供新的解决方案.
- 传统的农药和化肥对环境构成风险,并面临诸如抗菌素耐药性等问题.
- 纳米技术为开发更安全,更有效的农业投入提供了一个有希望的途径.
研究的目的:
- 通过绿色化学方法合成氧化铜纳米粒子 (CuONPs).
- 为了评估CuONPs对Xanthomonas oryzae pv.的疗效. (Xoo) 是一个主要的病原体.
- 评估CuONPs的植物毒性和促进植物生长的影响.
主要方法:
- 使用Hibiscus rosa-sinensis L.花提取物的CuONPs的绿色合成.
- 使用UV-Vis,SEM-EDX,FTIR和XRD进行CuONP的表征.
- 在体外评估抗菌活性对Xoo和生物膜抑制.
- 对大米和Arabidopsis thaliana的温室毒性和疗效研究.
主要成果:
- 描述的CuONP是28.1nm的纳米棒.
- CuONPs显著抑制了Xoo的生长 (79.65%) 和生物膜的形成 (79.17%).
- CuONPs显示出涉及细胞膜损伤和ROS生成的抗菌机制.
- 低度的CuONPs增强了米的生长,生物质,并减少了细菌叶病.
- 在Arabidopsis中,CuONPs的应用增加了叶绿素光度 (ΦPSII增加了152.05%).
结论:
- 绿色合成的CuONPs是有效的纳米杀虫剂对Xoo.
- 在200.0μg mL-1的CuONPs是非植物毒性的,可以作为纳米肥料.
- 这项研究强调了CuONPs在可持续疾病管理和作物增强方面的潜力.
相关概念视频
01:28Biological Methods for Microbial Control
42
Biological agents offer an effective means of controlling microbial growth by leveraging natural processes like predation, competition, and the secretion of antimicrobial substances.Predatory bacteria such as Bdellovibrio species target and kill pathogens like Salmonella and E. coli. They are widely used in poultry farms to control infections. Myxococcus species help combat plant-pathogenic fungi. These naturally occurring predators serve as eco-friendly alternatives to chemical pesticides and...
42
02:35Key Elements for Plant Nutrition
18.8K
Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...
18.8K