生物功能化-纳米颗粒抑制了大米 (Oryza sativa L.) 中的细菌叶病
Yasmine Abdallah1,2, Yasser Nehela3, Solabomi Olaitan Ogunyemi1
1State Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, Zhejiang University, Hangzhou, China.
Frontiers in plant science
|September 1, 2023
概括
这项研究生物合成了从番石榴中获得的-二氧化 (Ni-SiO2) 纳米复合物,用于抗菌应用. Ni-SiO2纳米颗粒有效抑制了大米植物中的细菌叶病 (BLB),显著减少了疾病,改善了植物健康.
科学领域:
- 农业科学 农业科学
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
背景情况:
- 细菌叶病 (BLB),是由Xanthomonas oryzae pv.v.引起的 (Xoo),对全球大米产量构成重大威胁.
- 生物合成的纳米粒子 (NP) 复合材料提供了一个有希望的环保方法来管理植物疾病,因为它们的抗菌性质.
研究的目的:
- 为了生物合成一个-二氧化 (Ni-SiO2) 纳米复合物,使用沙弗朗污名提取物.
- 评估合成的Ni-SiO2纳米复合物的抗菌疗效,以对抗Xoo,即大米中BLB的致病剂.
主要方法:
- -二氧化 (Ni-SiO2) 纳米复合物是使用沙弗朗 (Crocus sativus L.) 标记提取物合成的.
- 使用FTIR,XRD,TEM/SEM和EDS进行了Ni-SiO2纳米复合物的表征.
- 通过测量细菌生长,生物膜形成和细胞活力来评估对Xoo的抗菌活性.
主要成果:
- Ni-SiO2 NPs显著降低了Xoo细菌生长89.07%和生物膜形成80.40%在200μg/ml.
- 将Ni-SiO2NP应用于受感染的水植物,病叶面积从43.83%降至13.06%,植物高度增加.
- 用Ni-SiO2NP治疗导致Xoo细胞的9.96.1%的亡,而对照组的2.23%.
结论:
- 生物合成的Ni-SiO2纳米复合物显示出强大的抗菌活性对Xoo.
- Ni-SiO2 NPs有效控制米中的细菌叶病,增强植物活力,降低疾病严重程度.
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