Antifungal activity and inhibition of the molecular mechanism of lavender essential oil against Ustilaginoidea virens
文献类型： 外文期刊
作者： Fu, Rongtao 1 ; Zhao, Liyu 1 ; Wang, Jian 1 ; Chen, Cheng 1 ; Liu, Yao 3 ; Lu, Daihua 1 ;
作者机构： 1.Sichuan Acad Agr Sci, Inst Plant Protect, 20 Jingjusi Rad, Chengdu 610066, Sichuan, Peoples R China
2.Minist Agr, Key Lab Integrated Pest Management Crops Southwest, Chengdu 610066, Peoples R China
3.Sichuan Acad Agr Sci, Crop Res Inst, Chengdu 610066, Peoples R China
关键词： Plant essential oil; Antifungal activity; Comparative transcriptome; Protein synthesis; Energy metabolism
期刊名称：LWT-FOOD SCIENCE AND TECHNOLOGY （ 影响因子：6.0； 五年影响因子：6.0 ）
ISSN： 0023-6438
年卷期： 2024 年 203 卷
页码：
收录情况： SCI
摘要： Ustilaginoidea virens is the infectious agent responsible for rice false smut disease, which infects rice in ricegrowing regions worldwide. This study aimed to investigate the antifungal effect and the inhibition of molecular mechanism of lavender essential oil (LEO) against U. virens . The antifungal effects of LEO were studied assessed by examining mycelia growth, spore germination, conidial production, mycelia dry weight, and protein content. Scanning electron microscopy showed serious impairment in the mycelial morphology of U. virens when exposed to the EC 50 concentration of LEO. In this study, comparative transcriptome methods were used to analyze the gene expression levels of U. virens under LEO stress. The results revealed that 845 genes (371 upregulated, 474 downregulated) and 1173 genes (554 upregulated, 619 downregulated) were differentially expressed in U. virens treated with LEO (CL) compared to the control samples (CK) after 4 and 8 d of treatment, respectively. Further analyses indicated that various genes related to cell wall synthesis, cell membrane synthesis, protein synthesis, and the energy metabolism pathway were significantly downregulated. These results suggest that LEO may reduce the expression of genes related to the cell wall, cell membrane, protein synthesis, and energy metabolism pathways of U. virens , thus destroying the stability and fluidity of cells and interfering with their protein synthesis and energy metabolism to achieve an antifungal effect.
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