{"title":"Citronellol inhibits the activity of AtSRT1 to increase IAA content and signal transduction, promoting the growth of A. thaliana","authors":"Jin-Rui Wen, Hong-Yan Nie, Hong-Xin Liao, Fu-Rong Xu, Xiao-Yun Liu, Xian Dong","doi":"10.1186/s40538-025-00737-7","DOIUrl":null,"url":null,"abstract":"<div><p>Histone acetylation is a key epigenetic modification involved in plant development. Although histone deacetylase inhibitors (HDACi) are commonly studied in human diseases, their role in regulating histone deacetylation in plants remains unclear. This study explores the function of Citronellol, a volatile small molecule, as a plant-derived HDACi using <i>Arabidopsis thaliana</i> (L.) Heynh (<i>A. thaliana)</i> as a model. Citronellol at concentrations of 3 and 6 mM enhanced both root development and aboveground growth. Enzyme activity assays, molecular docking, and molecular dynamics simulations showed that Citronellol binds to specific residues (PHE:64, ARG:65, MET:1, and ILE:214) of the histone deacetylase AtSRT1 in Arabidopsis, inhibiting its activity and elevating H3K9ac levels. Integrated RNA-seq and ChIP-seq analyses revealed that Citronellol increased the expression of genes linked to growth and development, including <i>ATCTH</i>, <i>CPL3</i>, <i>IBR5</i>, <i>TCP4</i>, and <i>KUA1</i>, through enhanced histone acetylation and activation of plant hormone signaling pathways. These findings provide new insights into the epigenetic regulation of plant growth by Citronellol, identifying it as a novel HDACi. Citronellol could serve as an effective plant growth regulator, offering valuable applications for agricultural development. </p><h3>Graphical Abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":512,"journal":{"name":"Chemical and Biological Technologies in Agriculture","volume":"12 1","pages":""},"PeriodicalIF":5.2000,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chembioagro.springeropen.com/counter/pdf/10.1186/s40538-025-00737-7","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemical and Biological Technologies in Agriculture","FirstCategoryId":"97","ListUrlMain":"https://link.springer.com/article/10.1186/s40538-025-00737-7","RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"AGRICULTURE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Histone acetylation is a key epigenetic modification involved in plant development. Although histone deacetylase inhibitors (HDACi) are commonly studied in human diseases, their role in regulating histone deacetylation in plants remains unclear. This study explores the function of Citronellol, a volatile small molecule, as a plant-derived HDACi using Arabidopsis thaliana (L.) Heynh (A. thaliana) as a model. Citronellol at concentrations of 3 and 6 mM enhanced both root development and aboveground growth. Enzyme activity assays, molecular docking, and molecular dynamics simulations showed that Citronellol binds to specific residues (PHE:64, ARG:65, MET:1, and ILE:214) of the histone deacetylase AtSRT1 in Arabidopsis, inhibiting its activity and elevating H3K9ac levels. Integrated RNA-seq and ChIP-seq analyses revealed that Citronellol increased the expression of genes linked to growth and development, including ATCTH, CPL3, IBR5, TCP4, and KUA1, through enhanced histone acetylation and activation of plant hormone signaling pathways. These findings provide new insights into the epigenetic regulation of plant growth by Citronellol, identifying it as a novel HDACi. Citronellol could serve as an effective plant growth regulator, offering valuable applications for agricultural development.
期刊介绍：
Chemical and Biological Technologies in Agriculture is an international, interdisciplinary, peer-reviewed forum for the advancement and application to all fields of agriculture of modern chemical, biochemical and molecular technologies. The scope of this journal includes chemical and biochemical processes aimed to increase sustainable agricultural and food production, the evaluation of quality and origin of raw primary products and their transformation into foods and chemicals, as well as environmental monitoring and remediation. Of special interest are the effects of chemical and biochemical technologies, also at the nano and supramolecular scale, on the relationships between soil, plants, microorganisms and their environment, with the help of modern bioinformatics. Another special focus is the use of modern bioorganic and biological chemistry to develop new technologies for plant nutrition and bio-stimulation, advancement of biorefineries from biomasses, safe and traceable food products, carbon storage in soil and plants and restoration of contaminated soils to agriculture.
This journal presents the first opportunity to bring together researchers from a wide number of disciplines within the agricultural chemical and biological sciences, from both industry and academia. The principle aim of Chemical and Biological Technologies in Agriculture is to allow the exchange of the most advanced chemical and biochemical knowledge to develop technologies which address one of the most pressing challenges of our times - sustaining a growing world population.
Chemical and Biological Technologies in Agriculture publishes original research articles, short letters and invited reviews. Articles from scientists in industry, academia as well as private research institutes, non-governmental and environmental organizations are encouraged.
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