Antifungal profile and mechanism of bioinspired nanoscale magnesium against the agriculturally important pathogen Fusarium oxysporum f. sp. niveum
文献类型： 外文期刊
作者： Noman, Muhammad 1 ; Ahmed, Temoor 2 ; Islam, Mohammad Shafiqul 1 ; Ahmad, Mudassar 5 ; Wang, Jing 1 ; Cai, Yingying 1 ; Hao, Zhongna 1 ; Ali, Hayssam M. 6 ; Zhang, Zhen 1 ; Wang, Yanli 1 ; Li, Bin 2 ; Wang, Jiaoyu 1 ;
作者机构： 1.Zhejiang Acad Agr Sci, Inst Plant Protect & Microbiol, State Key Lab Managing Biot & Chem Threats Qual &, Hangzhou 310021, Peoples R China
2.Zhejiang Univ, Inst Biotechnol, Hangzhou 310058, Peoples R China
3.Western Caspian Univ, Dept Life Sci, Baku, Azerbaijan
4.Middle East Univ, MEU Res Unit, Amman, Jordan
5.Guangdong Acad Agr Sci, Inst Fruit Tree Res, Guangzhou 510640, Peoples R China
6.King Saud Univ, Coll Sci, Dept Bot & Microbiol, Riyadh 11451, Saudi Arabia
期刊名称：ENVIRONMENTAL SCIENCE-NANO （ 影响因子：5.8； 五年影响因子：6.7 ）
ISSN： 2051-8153
年卷期： 2024 年
页码：
收录情况： SCI
摘要： Fusarium wilt, caused by the soil-borne fungal pathogen Fusarium oxysporum f. sp. niveum (Fon), threatens global watermelon production. Conventional fungicides have limitations in efficacy and environmental impact, prompting the search for alternative disease management strategies. In this study, we investigated the potential of biogenic magnesium nanoparticles (MgNPs), extracellulary-synthesized using Bacillus marisflavi NOT10 culture supernatant, as an effective alternative for managing Fusarium wilt. Here, we elucidated the molecular action mechanism underlying the antifungal activity of MgNPs against Fon. Through a series of greenhouse and in vitro assays, we demonstrated that biogenic MgNPs effectively inhibited Fon growth, development, and pathogenicity. Our results demonstrated that MgNPs effectively suppressed watermelon Fusarium wilt by similar to 78% and invasive in planta fungal growth by targeting specific Peroxin (PEX) genes, including FonPEX2, FonPEX8, and FonPEX10, leading to their downregulation. This molecular targeting might resulted in cell wall damage, reduced conidiation, impaired conidial germination, and compromised hyphal morphology in Fon. Notably, Delta FonPex2, Delta FonPex8, and Delta FonPex10 deletion mutants showed enhanced sensitivity to biogenic MgNPs than the WT, further validating their involvement in regulating response to MgNPs in Fon. Overall, our findings provide novel insights into the molecular mechanisms underlying the antifungal activity of MgNPs and contribute to the development of innovative NP-based solutions for plant disease control in agriculture.
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