Bioinspired Green Synthesis of Chitosan and Zinc Oxide Nanoparticles with Strong Antibacterial Activity against Rice Pathogen Xanthomonas oryzae pv. oryzae
文献类型： 外文期刊
作者： Abdallah, Yasmine 1 ; Liu, Mengju 1 ; Ogunyemi, Solabomi Olaitan 1 ; Ahmed, Temoor 1 ; Fouad, Hatem 4 ; Abdelazez, 1 ;
作者机构： 1.Zhejiang Univ, State Key Lab Rice Biol, Hangzhou 310058, Peoples R China
2.Zhejiang Univ, Minist Agr, Key Lab Mol Biol Crop Pathogens & Insects, Inst Biotechnol, Hangzhou 310058, Peoples R China
3.Menia Univ, Dept Plant Pathol, Elminya 61519, Egypt
4.Zhejiang Univ, Inst Insect Sci, Minist Agr, Key Lab Agr Entomol, Hangzhou 310027, Peoples R China
5.Agr Res Ctr, Plant Protect Res Inst, Dept Field Crop Pests, Cairo 12619, Egypt
6.Agr Res Ctr, Res Inst Anim Prod, Dept Dairy Microbiol, Giza 12618, Egypt
7.Ningbo Univ, Inst Plant Virol, Ningbo 315211, Peoples R China
8.Zhejiang Acad Agr Sci, State Key Lab Managing Biot & Chem Treats Qual &, Inst Virol & Biotechnol, Hangzhou 310021, Peoples R China
关键词： antibacterial activity; chitosan nanoparticles; green synthesis; ZnO nanoparticles; tomato extract
期刊名称：MOLECULES （ 影响因子：4.411； 五年影响因子：4.587 ）
ISSN：
年卷期： 2020 年 25 卷 20 期
页码：
收录情况： SCI
摘要： Bacterial leaf blight caused by Xanthomonas oryzae pv. oryzae (Xoo) is one of the most devastating diseases, resulting in significant yield losses in rice. The extensive use of chemical antibacterial agents has led to an increase the environmental toxicity. Nanotechnology products are being developed as a promising alternative to control plant disease with low environmental impact. In the present study, we investigated the antibacterial activity of biosynthesized chitosan nanoparticles (CSNPs) and zinc oxide nanoparticles (ZnONPs) against rice pathogen Xoo. The formation of CSNPs and ZnONPs in the reaction mixture was confirmed by using UV-vis spectroscopy at 300-550 nm. Moreover, CSNPs and ZnONPs with strong antibacterial activity against Xoo were further characterized by scanning and transmission electron microscopy, Fourier-transform infrared spectroscopy, and X-ray diffraction. Compared with the corresponding chitosan and ZnO alone, CSNPs and ZnONPs showed greater inhibition in the growth of Xoo, which may be mainly attributed to the reduction in biofilm formation and swimming, cell membrane damage, reactive oxygen species production, and apoptosis of bacterial cells. Overall, this study revealed that the two biosynthesized nanoparticles, particularly CSNPs, are a promising alternative to control rice bacterial disease.
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