{"title":"The Role of Carnosic Acid in the UV-B Stress Resistance Signalling Pathway in Arabidopsis thaliana","authors":"Danlu Han, Chufang Lin, Simin Xia, Xiaoting Zheng, Chengluo Zhu, Yue Shen, Yue Chen, Changlian Peng, Caijuan Wang, Jinming He, Jianbin Lai, Chengwei Yang","doi":"10.1111/pce.15226","DOIUrl":null,"url":null,"abstract":"<div>\n \n <p>Carnosic acid (CA) is recognized as an antioxidant that confers protection to plants against various forms of oxidative stress, including UV-B stress. However, limited research has been conducted to elucidate the molecular mechanisms underlying its defence against UV-B stress. In this study, we demonstrated that CA exhibits more efficacy compared to other antioxidants in UV-B resistance. Moreover, CA was found to enhance the accumulation of secondary metabolites in Arabidopsis leaves. Through the analysis of differentially expressed genes in response to UV-B stress with or without CA treatment, we uncovered that the exogenous application of CA effectively activates the flavonoid biosynthesis pathway in Arabidopsis to improve resistance of Arabidopsis to UV-B stress.</p></div>","PeriodicalId":222,"journal":{"name":"Plant, Cell & Environment","volume":"48 2","pages":"1232-1241"},"PeriodicalIF":6.3000,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Plant, Cell & Environment","FirstCategoryId":"2","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1111/pce.15226","RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"PLANT SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
Carnosic acid (CA) is recognized as an antioxidant that confers protection to plants against various forms of oxidative stress, including UV-B stress. However, limited research has been conducted to elucidate the molecular mechanisms underlying its defence against UV-B stress. In this study, we demonstrated that CA exhibits more efficacy compared to other antioxidants in UV-B resistance. Moreover, CA was found to enhance the accumulation of secondary metabolites in Arabidopsis leaves. Through the analysis of differentially expressed genes in response to UV-B stress with or without CA treatment, we uncovered that the exogenous application of CA effectively activates the flavonoid biosynthesis pathway in Arabidopsis to improve resistance of Arabidopsis to UV-B stress.
肉豆蔻酸（CA）被认为是一种抗氧化剂，可保护植物免受各种形式的氧化胁迫，包括紫外线-B 胁迫。然而，对其抵御紫外线-B 胁迫的分子机制的研究还很有限。在这项研究中，我们证明了 CA 在抗紫外线-B 方面比其他抗氧化剂更有效。此外，我们还发现 CA 能促进拟南芥叶片中次生代谢产物的积累。通过分析经CA处理或未经CA处理的拟南芥对紫外线-B胁迫反应的差异表达基因，我们发现外源施用CA能有效激活拟南芥中黄酮类化合物的生物合成途径，从而提高拟南芥对紫外线-B胁迫的抗性。
期刊介绍：
Plant, Cell & Environment is a premier plant science journal, offering valuable insights into plant responses to their environment. Committed to publishing high-quality theoretical and experimental research, the journal covers a broad spectrum of factors, spanning from molecular to community levels. Researchers exploring various aspects of plant biology, physiology, and ecology contribute to the journal's comprehensive understanding of plant-environment interactions.
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