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Unlocking the Potential of Carbon Quantum Dots for Cell Imaging, Intracellular Localization, and Gene Expression Control in Arabidopsis thaliana (L.) Heynh.

文献类型： 外文期刊

作者： Lin, Zhimin 1 ; Ali, Muhammad Moaaz 2 ; Yi, Xiaoyan 2 ; Zhang, Lijuan 2 ; Wang, Shaojuan 2 ; Chen, Faxing 2 ;

作者机构： 1.Fujian Acad Agr Sci, Biotechnol Inst, Fuzhou 350003, Peoples R China

2.Fujian Agr & Forestry Univ, Coll Hort, Fuzhou 350002, Peoples R China

关键词： carbon dots; 4 ',6-diamidino-2-phenylindole (DAPI); cell localization; transcriptome analysis; argonaute family; DNA methylation; transmission electron microscopy

期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：5.6； 五年影响因子：6.2 ）

ISSN： 1661-6596

年卷期： 2023 年 24 卷 21 期

页码：

收录情况： SCI

摘要： Utilizing carbon quantum dots (CQDs) as biomaterials for delivering small substances has gained significant attention in recent research. However, the interactions and mechanisms of action of CQDs on plants have received relatively little focus. Herein, we investigated the transportation of CQDs into various organs of Arabidopsis thaliana (L.) Heynh. via the vessel system, leading to the epigenetic inheritance of Argonaute family genes. Our findings reveal that CQDs may interact with microRNAs (miRNAs), leading to the repression of post-transcriptional regulation of target genes in the cytoplasm. Transcriptome and quantitative PCR analyses demonstrated consistent gene expression levels in offspring. Moreover, microscopic observations illustrated rapid CQD localization on cell membranes and nuclei, with increased nuclear entry at higher concentrations. Notably, our study identified an alternative regulatory microRNA, microRNA172D, for the Argonaute family genes through methylation analysis, shedding light on the connection between CQDs and microRNAs.

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