{"title":"Metal and non-metal nanoparticles differentially regulate flavonoid accumulation in Cyclocarya paliurus: A multi-omics analysis","authors":"Zijie Zhang, Feiran Chen, Jie Fang, Huiyin Jin, Tongli Wang, Shengzuo Fang","doi":"10.1016/j.indcrop.2025.122023","DOIUrl":null,"url":null,"abstract":"Nanotechnology offers emerging tools for elevating metabolites levels in agricultural and medicinal crops, yet its regulatory effects on woody species remains underexplored. <em>Cyclocarya paliurus</em>, a precious tree species with flavonoid-linked antioxidant and hypoglycemic properties, was foliar-applied with nanoparticles (NPs) of ZnO, MnO<sub>2</sub>, and SiO<sub>2</sub> to investigate their elicitation potential under field-simulated conditions. Compared with the control, applications of MnO<sub>2</sub>- and SiO<sub>2</sub>-NPs markedly increased total flavonoid content (TFC) in <em>C. paliurus</em> leaves by 21.26–49.99 %, and enhanced per-plant flavonoid accumulation by 40.70–50.06 %. Conversely, applications of high-dose ZnO-NPs induced oxidative imbalance, resulting in a 30.25 % and 43.84 % decline in TFC and flavonoid accumulation respectively. Multi-omics profiling revealed that both MnO<sub>2</sub>- NPs and SiO<sub>2</sub>-NPs activated ROS-dependent pathways involving MAPK and glutathione signaling, while SiO₂-NPs may also promote flavonoid biosynthesis via enhancing carbon fixation and primary metabolism. The MYB-bHLH-WD40 complex (including <em>MYB113</em>, <em>bHLH42</em>, and <em>TTG1</em>) was identified as a central regulatory node, ranking among the top 10 contributors in O2PLS analysis and exhibiting strong correlations (cor > 0.95) with flavonoid metabolites. Collectively, we propose a model wherein ROS signaling induced by NPs interacts with transcriptional networks to modulate flavonoid accumulation. This work provides a nano-enabled strategy to boost health-promoting compounds in the woody plants.","PeriodicalId":13581,"journal":{"name":"Industrial Crops and Products","volume":"1 1","pages":""},"PeriodicalIF":6.2000,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Industrial Crops and Products","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.1016/j.indcrop.2025.122023","RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"AGRICULTURAL ENGINEERING","Score":null,"Total":0}
引用次数: 0
Abstract
Nanotechnology offers emerging tools for elevating metabolites levels in agricultural and medicinal crops, yet its regulatory effects on woody species remains underexplored. Cyclocarya paliurus, a precious tree species with flavonoid-linked antioxidant and hypoglycemic properties, was foliar-applied with nanoparticles (NPs) of ZnO, MnO2, and SiO2 to investigate their elicitation potential under field-simulated conditions. Compared with the control, applications of MnO2- and SiO2-NPs markedly increased total flavonoid content (TFC) in C. paliurus leaves by 21.26–49.99 %, and enhanced per-plant flavonoid accumulation by 40.70–50.06 %. Conversely, applications of high-dose ZnO-NPs induced oxidative imbalance, resulting in a 30.25 % and 43.84 % decline in TFC and flavonoid accumulation respectively. Multi-omics profiling revealed that both MnO2- NPs and SiO2-NPs activated ROS-dependent pathways involving MAPK and glutathione signaling, while SiO₂-NPs may also promote flavonoid biosynthesis via enhancing carbon fixation and primary metabolism. The MYB-bHLH-WD40 complex (including MYB113, bHLH42, and TTG1) was identified as a central regulatory node, ranking among the top 10 contributors in O2PLS analysis and exhibiting strong correlations (cor > 0.95) with flavonoid metabolites. Collectively, we propose a model wherein ROS signaling induced by NPs interacts with transcriptional networks to modulate flavonoid accumulation. This work provides a nano-enabled strategy to boost health-promoting compounds in the woody plants.
期刊介绍:
Industrial Crops and Products is an International Journal publishing academic and industrial research on industrial (defined as non-food/non-feed) crops and products. Papers concern both crop-oriented and bio-based materials from crops-oriented research, and should be of interest to an international audience, hypothesis driven, and where comparisons are made statistics performed.