数字农科院2.0

Multivariate Statistical Analysis of Solidago canadensis L. Essential Oil and Its Antifungal Mechanism Against Mulberry Sclerotinia Diseases

文献类型： 外文期刊

作者： Yang, Jia-Xin;Lu, Zhen-Zhen;Chen, Sen;Lin, Shi-Yi;Yao, Xiao-Hui;Chen, Tao;Zhang, Dong-Yang

作者机构：

关键词： Ciboria shiraiana;Solidago canadensis L.;essential oil;antifungal mechanism;mulberry

期刊名称： INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES

ISSN： 1661-6596

年卷期： 2025 年 27 卷 1 期

页码：

收录情况： SCIE（2025版）

摘要： Ciboria shiraiana (C. shiraiana), a pathogenic fungus, is a major threat to mulberry trees, causing mulberry sclerotinia diseases. Current control strategies primarily rely on chemical pesticides, whose long-term use leads to adverse effects such as pesticide residues, environmental pollution, and pathogen resistance. This study aimed to develop a green pesticide derived from the essential oil (EOs) of Solidago canadensis L. (S. canadensis L.) and to analyze its antifungal mechanism. SLEOs were extracted from flowers, leaves, and stems of S. canadensis L. via hydro-distillation. Their chemical composition was analyzed by GC-MS. Multivariate statistical analysis was used to assess compositional differences among SLEOs from various plant parts and evaluate the correlation between their chemical components and antifungal efficacy. The antifungal mechanism of SLEOs against C. shiraiana was investigated using an integrated approach combining transcriptomics with physiological and biochemical analyses. The EO yield varied with plant part: flowers yielded the most (1.00% +/- 0.07%), followed by leaves (0.76% +/- 0.04%) and stems (0.05% +/- 0.01%). Flower EOs (FEOs) strongly inhibited C. shiraiana, with an EC50 value of 0.642 mu L/mL. alpha-pinene and myrcene showed the highest correlation with antifungal activity. Transcriptomic and physiological data revealed that SLEOs compromise cell wall and membrane integrity, infiltrate cells, and trigger leakage of intracellular contents. Additionally, SLEOs inhibited activities of antioxidant enzymes (SOD, CAT, and POD), leading to intracellular ROS accumulation, oxidative stress, lipid peroxidation, and DNA damage. SLEOs constitute a promising natural and environmentally sustainable antifungal agent. Their activity is linked to specific components and a multi-target mechanism involving membrane disruption and oxidative stress induction. This study provides a foundation for developing plant-based agents to manage mulberry sclerotinia diseases.

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