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Cressoni C, Malandra S, Milan E, Boschi F, Nicolato E, Negri A, Veccia A, Bontempi P, Mangiameli D, Pietrobono S, Melisi D, Marzola P, Antonelli A, Speghini A. Injectable Thermogelling Nanostructured Ink as Simultaneous Optical and Magnetic Resonance Imaging Contrast Agent for Image-Guided Surgery. Biomacromolecules 2024; 25:3741-3755. [PMID: 38783486 DOI: 10.1021/acs.biomac.4c00312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
The development of efficient and biocompatible contrast agents is particularly urgent for modern clinical surgery. Nanostructured materials raised great interest as contrast agents for different imaging techniques, for which essential features are high contrasts, and in the case of precise clinical surgery, minimization of the signal spatial dispersion when embedded in biological tissues. This study deals with the development of a multimodal contrast agent based on an injectable hydrogel nanocomposite containing a lanthanide-activated layered double hydroxide coupled to a biocompatible dye (indocyanine green), emitting in the first biological window. This novel nanostructured thermogelling hydrogel behaves as an efficient tissue marker for optical and magnetic resonance imaging because the particular formulation strongly limits its spatial diffusion in biological tissue by exploiting a simple injection. The synergistic combination of these properties permits to employ the hydrogel ink simultaneously for both optical and magnetic resonance imaging, easy monitoring of the biological target, and, at the same time, increasing the spatial resolution during a clinical surgery. The biocompatibility and excellent performance as contrast agents are very promising for possible use in image-guided surgery, which is currently one of the most challenging topics in clinical research.
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Affiliation(s)
- Chiara Cressoni
- Nanomaterials Research Group, Department of Biotechnology and INSTM, RU of Verona, University of Verona, Strada le Grazie 15, 37134 Verona, Italy
| | - Sarah Malandra
- Department of Surgery, Dentistry, Pediatrics and Gynecology, Urology Unit, University of Verona, Azienda Ospedaliera Universitaria Integrata Verona (AOUI), P.le A. Stefani 1, 37126 Verona, Italy
| | - Emil Milan
- Nanomaterials Research Group, Department of Biotechnology and INSTM, RU of Verona, University of Verona, Strada le Grazie 15, 37134 Verona, Italy
| | - Federico Boschi
- Department of Engineering for Innovation Medicine, University of Verona, Strada le Grazie 15, 37134 Verona, Italy
| | - Elena Nicolato
- Centre of Tecnological Platforms, University of Verona, Strada le Grazie 8, 37134 Verona, Italy
| | - Alessandro Negri
- Department of Engineering for Innovation Medicine, University of Verona, Strada le Grazie 15, 37134 Verona, Italy
| | - Alessandro Veccia
- Department of Surgery, Dentistry, Pediatrics and Gynecology, Urology Unit, University of Verona, Azienda Ospedaliera Universitaria Integrata Verona (AOUI), P.le A. Stefani 1, 37126 Verona, Italy
| | - Pietro Bontempi
- Department of Engineering for Innovation Medicine, University of Verona, Strada le Grazie 15, 37134 Verona, Italy
| | - Domenico Mangiameli
- Department of Medicine, University of Verona, Piazzale Ludovico Antonio Scuro 10, 37124 Verona, Italy
| | - Silvia Pietrobono
- Department of Medicine, University of Verona, Piazzale Ludovico Antonio Scuro 10, 37124 Verona, Italy
| | - Davide Melisi
- Department of Medicine, University of Verona, Piazzale Ludovico Antonio Scuro 10, 37124 Verona, Italy
| | - Pasquina Marzola
- Department of Engineering for Innovation Medicine, University of Verona, Strada le Grazie 15, 37134 Verona, Italy
| | - Alessandro Antonelli
- Department of Surgery, Dentistry, Pediatrics and Gynecology, Urology Unit, University of Verona, Azienda Ospedaliera Universitaria Integrata Verona (AOUI), P.le A. Stefani 1, 37126 Verona, Italy
| | - Adolfo Speghini
- Nanomaterials Research Group, Department of Biotechnology and INSTM, RU of Verona, University of Verona, Strada le Grazie 15, 37134 Verona, Italy
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Jiang L, Wang Q, Kang ZH, Wen JX, Yang YB, Lu XJ, Guo W, Zhao D. Novel Environmentally Friendly RNAi Biopesticides: Targeting V-ATPase in Holotrichia parallela Larvae Using Layered Double Hydroxide Nanocomplexes. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:11381-11391. [PMID: 38728113 DOI: 10.1021/acs.jafc.4c00084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2024]
Abstract
RNA interference (RNAi)-based biopesticides offer an attractive avenue for pest control. Previous studies revealed high RNAi sensitivity in Holotrichia parallela larvae, showcasing its potential for grub control. In this study, we aimed to develop an environmentally friendly RNAi method for H. parallela larvae. The double-stranded RNA (dsRNA) of the V-ATPase-a gene (HpVAA) was loaded onto layered double hydroxide (LDH). The dsRNA/LDH nanocomplex exhibited increased environmental stability, and we investigated the absorption rate and permeability of dsRNA-nanoparticle complexes and explored the RNAi controlling effect. Silencing the HpVAA gene was found to darken the epidermis of H. parallela larvae, with growth cessation or death or mortality, disrupting the epidermis and midgut structure. Quantitative reverse transcription-polymerase chain reaction and confocal microscopy confirmed the effective absorption of the dsRNA/LDH nanocomplex by peanut plants, with distribution in roots, stems, and leaves. Nanomaterial-mediated RNAi silenced the target genes, leading to the death of pests. Therefore, these findings indicate the successful application of the nanomaterial-mediated RNAi system for underground pests, thus establishing a theoretical foundation for developing a green, safe, and efficient pest control strategy.
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Affiliation(s)
- Li Jiang
- College of Plant Protection, Hebei Agricultural University, Baoding, Hebei 071001, China
| | - Qian Wang
- College of Plant Protection, Hebei Agricultural University, Baoding, Hebei 071001, China
| | - Zhan-Hai Kang
- College of Plant Protection, Hebei Agricultural University, Baoding, Hebei 071001, China
| | - Jing-Xin Wen
- College of Plant Protection, Hebei Agricultural University, Baoding, Hebei 071001, China
| | - Yu-Bo Yang
- College of Plant Protection, Hebei Agricultural University, Baoding, Hebei 071001, China
| | - Xiu-Jun Lu
- College of Plant Protection, Hebei Agricultural University, Baoding, Hebei 071001, China
| | - Wei Guo
- College of Plant Protection, Hebei Agricultural University, Baoding, Hebei 071001, China
- Graduate School of Chinese Academy of Agricultural Sciences, Beijing 100091, China
| | - Dan Zhao
- College of Plant Protection, Hebei Agricultural University, Baoding, Hebei 071001, China
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Bairwa A, Dipta B, Siddappa S, Singh B, Sharma N, Naga KC, Mhatre PH, Sharma S, Venkatasalam EP, Singh B. Kaolinite nanoclay-shielded dsRNA drenching for management of Globodera pallida: An environmentally friendly pest management approach. PROTOPLASMA 2024:10.1007/s00709-024-01950-1. [PMID: 38607379 DOI: 10.1007/s00709-024-01950-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Accepted: 03/28/2024] [Indexed: 04/13/2024]
Abstract
Globodera pallida, an obligate sedentary endoparasite, is a major economic pest that causes substantial potato yield losses. This research aimed to study the effects of gene silencing of three FMRFamide-like peptides (FLPs) genes to reduce G. pallida infestation on potato plants by using kaolinite nanoclay as a carrier to deliver dsRNAs via drenching. A dsRNA dosage of 2.0 mg/ml silenced flp-32c by 89.5%, flp-32p by 94.6%, and flp-2 by 94.3%. J2s incubated for 5 and 10 h showed no phenotypic changes. However, J2s of G. pallida efficiently uptake dsRNA of all targeted genes after 15 h of incubation. On the other hand, J2s that had been kept for 24 h had a rigid and straight appearance. Under fluorescence microscopy, all dsRNA-treated nematodes showed fluorescein isothiocyanate (FITC) signals in the mouth, nervous system, and digestive system. The untreated population of J2s did not show any FITC signals and was mobile as usual. The drenching of potato cultivar Kufri Jyoti with the dsRNA-kaolinite formulations induced deformation and premature death of J2s, compared with untreated J2s that entered J3 or J4 stages. This study validates that the nanocarrier-delivered RNAi system could be employed effectively to manage G. pallida infestations.
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Affiliation(s)
- Aarti Bairwa
- ICAR-Central Potato Research Institute, Shimla, 171001, Himachal Pradesh, India.
| | - Bhawna Dipta
- ICAR-Central Potato Research Institute, Shimla, 171001, Himachal Pradesh, India.
| | - Sundaresha Siddappa
- ICAR-Central Potato Research Institute, Shimla, 171001, Himachal Pradesh, India
| | - Baljeet Singh
- ICAR-Central Potato Research Institute, Shimla, 171001, Himachal Pradesh, India
| | - Neha Sharma
- ICAR-Central Potato Research Institute, Shimla, 171001, Himachal Pradesh, India
| | - Kailash C Naga
- ICAR-Central Potato Research Institute, Shimla, 171001, Himachal Pradesh, India
| | - Priyank H Mhatre
- ICAR-Central Potato Research Station, Udhagamandalam, 643004, Tamil Nadu, India
| | - Sanjeev Sharma
- ICAR-Central Potato Research Institute, Shimla, 171001, Himachal Pradesh, India
| | - E P Venkatasalam
- ICAR-Central Potato Research Station, Udhagamandalam, 643004, Tamil Nadu, India
| | - Brajesh Singh
- ICAR-Central Potato Research Institute, Shimla, 171001, Himachal Pradesh, India
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Arjunan N, Thiruvengadam V, Sushil SN. Nanoparticle-mediated dsRNA delivery for precision insect pest control: a comprehensive review. Mol Biol Rep 2024; 51:355. [PMID: 38400844 DOI: 10.1007/s11033-023-09187-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 12/19/2023] [Indexed: 02/26/2024]
Abstract
Nanoparticle-based delivery systems have emerged as powerful tools in the field of pest management, offering precise and effective means of delivering double-stranded RNA (dsRNA), a potent agent for pest control through RNA interference (RNAi). This comprehensive review aims to evaluate and compare various types of nanoparticles for their suitability in dsRNA delivery for pest management applications. The review begins by examining the unique properties and advantages of different nanoparticle materials, including clay, chitosan, liposomes, carbon, gold and silica. Each material's ability to protect dsRNA from degradation and its potential for targeted delivery to pests are assessed. Furthermore, this review delves into the surface modification strategies employed to enhance dsRNA delivery efficiency. Functionalization with oligonucleotides, lipids, polymers, proteins and peptides is discussed in detail, highlighting their role in improving stability, cellular uptake, and specificity of dsRNA delivery.This review also provides valuable guidance on choosing the most suitable nanoparticle-based system for delivering dsRNA effectively and sustainably in pest management. Moreover, it identifies existing knowledge gaps and proposes potential research directions aimed at enhancing pest control strategies through the utilization of nanoparticles and dsRNA.
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Affiliation(s)
- Nareshkumar Arjunan
- Division of Molecular Entomology, Department of Zoology, School of Life Sciences, Periyar University, Salem, 636011, India.
| | - Venkatesan Thiruvengadam
- Division of Genomic Resources, ICAR-National Bureau of Agricultural Insect Resources, H.A. Farm Post, Hebbal, P.B. No. 2491, Bangalore, 560024, India.
| | - S N Sushil
- Division of Genomic Resources, ICAR-National Bureau of Agricultural Insect Resources, H.A. Farm Post, Hebbal, P.B. No. 2491, Bangalore, 560024, India
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Kiselev KV, Suprun AR, Aleynova OA, Ogneva ZV, Dubrovina AS. Simultaneous Application of Several Exogenous dsRNAs for the Regulation of Anthocyanin Biosynthesis in Arabidopsis thaliana. PLANTS (BASEL, SWITZERLAND) 2024; 13:541. [PMID: 38498529 PMCID: PMC10893326 DOI: 10.3390/plants13040541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 02/10/2024] [Accepted: 02/14/2024] [Indexed: 03/20/2024]
Abstract
Plant surface treatment with double-stranded RNAs (dsRNAs) has gained recognition as a promising method for inducing gene silencing and combating plant pathogens. However, the regulation of endogenous plant genes by external dsRNAs has not been sufficiently investigated. Also, the effect of the simultaneous application of multiple gene-specific dsRNAs has not been analyzed. The aim of this study was to exogenously target five genes in Arabidopsis thaliana, namely, three transcription factor genes (AtCPC, AtMybL2, AtANAC032), a calmodulin-binding protein gene (AtCBP60g), and an anthocyanidin reductase gene (AtBAN), which are known as negative regulators of anthocyanin accumulation. Exogenous dsRNAs encoding these genes were applied to the leaf surface of A. thaliana either individually or in mixtures. The mRNA levels of the five targets were analyzed using qRT-PCR, and anthocyanin content was evaluated through HPLC-MS. The results demonstrated significant downregulation of all five target genes by the exogenous dsRNAs, resulting in enhanced expression of chalcone synthase (AtCHS) gene and increased anthocyanin content. The simultaneous foliar application of the five dsRNAs proved to be more efficient in activating anthocyanin accumulation compared to the application of individual dsRNAs. These findings hold considerable importance in plant biotechnology and gene function studies.
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Affiliation(s)
- Konstantin V Kiselev
- Laboratory of Biotechnology, Federal Scientific Center of the East Asia Terrestrial Biodiversity, Far Eastern Branch of the Russian Academy of Sciences, 690022 Vladivostok, Russia
| | - Andrey R Suprun
- Laboratory of Biotechnology, Federal Scientific Center of the East Asia Terrestrial Biodiversity, Far Eastern Branch of the Russian Academy of Sciences, 690022 Vladivostok, Russia
| | - Olga A Aleynova
- Laboratory of Biotechnology, Federal Scientific Center of the East Asia Terrestrial Biodiversity, Far Eastern Branch of the Russian Academy of Sciences, 690022 Vladivostok, Russia
| | - Zlata V Ogneva
- Laboratory of Biotechnology, Federal Scientific Center of the East Asia Terrestrial Biodiversity, Far Eastern Branch of the Russian Academy of Sciences, 690022 Vladivostok, Russia
| | - Alexandra S Dubrovina
- Laboratory of Biotechnology, Federal Scientific Center of the East Asia Terrestrial Biodiversity, Far Eastern Branch of the Russian Academy of Sciences, 690022 Vladivostok, Russia
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Chen A, Halilovic L, Shay JH, Koch A, Mitter N, Jin H. Improving RNA-based crop protection through nanotechnology and insights from cross-kingdom RNA trafficking. CURRENT OPINION IN PLANT BIOLOGY 2023; 76:102441. [PMID: 37696727 PMCID: PMC10777890 DOI: 10.1016/j.pbi.2023.102441] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 07/21/2023] [Accepted: 08/06/2023] [Indexed: 09/13/2023]
Abstract
Spray-induced gene silencing (SIGS) is a powerful and eco-friendly method for crop protection. Based off the discovery of RNA uptake ability in many fungal pathogens, the application of exogenous RNAs targeting pathogen/pest genes results in gene silencing and infection inhibition. However, SIGS remains hindered by the rapid degradation of RNA in the environment. As extracellular vesicles are used by plants, animals, and microbes in nature to transport RNAs for cross-kingdom/species RNA interference between hosts and microbes/pests, nanovesicles and other nanoparticles have been used to prevent RNA degradation. Efforts examining the effect of nanoparticles on RNA stability and internalization have identified key attributes that can inform better nanocarrier designs for SIGS. Understanding sRNA biogenesis, cross-kingdom/species RNAi, and how plants and pathogens/pests naturally interact are paramount for the design of SIGS strategies. Here, we focus on nanotechnology advancements for the engineering of innovative RNA-based disease control strategies against eukaryotic pathogens and pests.
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Affiliation(s)
- Angela Chen
- Department of Microbiology and Plant Pathology, Center for Plant Cell Biology, Institute for Integrative Genome Biology, University of California, Riverside, CA, USA
| | - Lida Halilovic
- Department of Microbiology and Plant Pathology, Center for Plant Cell Biology, Institute for Integrative Genome Biology, University of California, Riverside, CA, USA
| | - Jia-Hong Shay
- Department of Microbiology and Plant Pathology, Center for Plant Cell Biology, Institute for Integrative Genome Biology, University of California, Riverside, CA, USA
| | - Aline Koch
- Institute of Plant Sciences Cell Biology and Plant Biochemistry, Plant RNA Transport, University of Regensburg, Regensburg, Germany
| | - Neena Mitter
- Queensland Alliance for Agriculture and Food Innovation, Centre for Horticultural Science, The University of Queensland, St Lucia, Queensland, 4072, Australia
| | - Hailing Jin
- Department of Microbiology and Plant Pathology, Center for Plant Cell Biology, Institute for Integrative Genome Biology, University of California, Riverside, CA, USA.
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Molesini B, Pennisi F, Vitulo N, Pandolfini T. MicroRNAs associated with AGL6 and IAA9 function in tomato fruit set. BMC Res Notes 2023; 16:242. [PMID: 37777779 PMCID: PMC10544166 DOI: 10.1186/s13104-023-06510-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 09/15/2023] [Indexed: 10/02/2023] Open
Abstract
OBJECTIVE Fruit set is triggered after ovule fertilization, as a consequence of the downregulation of ovary growth repressors, such as the tomato transcription factors Auxin/indole-3-acetic acid 9 (IAA9) and Agamous-like 6 (AGL6). In a recent work, we developed a method to silence IAA9 and AGL6 in tomato ovaries using exogenous dsRNAs. We also produced small RNA libraries from IAA9- and AGL6-silenced ovaries to confirm the presence of siRNAs, derived from exogenous dsRNA, targeting IAA9 and AGL6. The objective of this work is to exploit these sRNA libraries to identify miRNAs differentially expressed in IAA9- and AGL6-silenced ovaries as compared with unpollinated control ovaries. RESULTS We identified by RNA sequencing 125 and 104 known and 509 and 516 novel miRNAs from reads mapped to mature or hairpin sequences, respectively. Of the known miRNAs, 7 and 45 were differentially expressed in IAA9- and AGL6-silenced ovaries compared to control ones, respectively. Six miRNAs were common to both datasets, suggesting their importance in the fruit set process. The expression pattern of two of these (miR393 and miR482e-5p) was verified by stem-loop qRT-PCR. The identified miRNAs represent a pool of regulatory sRNAs potentially involved in tomato fruit initiation.
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Affiliation(s)
- Barbara Molesini
- Department of Biotechnology, University of Verona, Verona, 37134, Italy
| | - Federica Pennisi
- Department of Biotechnology, University of Verona, Verona, 37134, Italy
| | - Nicola Vitulo
- Department of Biotechnology, University of Verona, Verona, 37134, Italy
| | - Tiziana Pandolfini
- Department of Biotechnology, University of Verona, Verona, 37134, Italy.
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Yan T, Hou Q, Wei X, Qi Y, Pu A, Wu S, An X, Wan X. Promoting genotype-independent plant transformation by manipulating developmental regulatory genes and/or using nanoparticles. PLANT CELL REPORTS 2023; 42:1395-1417. [PMID: 37311877 PMCID: PMC10447291 DOI: 10.1007/s00299-023-03037-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 05/22/2023] [Indexed: 06/15/2023]
Abstract
KEY MESSAGE This review summarizes the molecular basis and emerging applications of developmental regulatory genes and nanoparticles in plant transformation and discusses strategies to overcome the obstacles of genotype dependency in plant transformation. Plant transformation is an important tool for plant research and biotechnology-based crop breeding. However, Plant transformation and regeneration are highly dependent on species and genotype. Plant regeneration is a process of generating a complete individual plant from a single somatic cell, which involves somatic embryogenesis, root and shoot organogeneses. Over the past 40 years, significant advances have been made in understanding molecular mechanisms of embryogenesis and organogenesis, revealing many developmental regulatory genes critical for plant regeneration. Recent studies showed that manipulating some developmental regulatory genes promotes the genotype-independent transformation of several plant species. Besides, nanoparticles penetrate plant cell wall without external forces and protect cargoes from degradation, making them promising materials for exogenous biomolecule delivery. In addition, manipulation of developmental regulatory genes or application of nanoparticles could also bypass the tissue culture process, paving the way for efficient plant transformation. Applications of developmental regulatory genes and nanoparticles are emerging in the genetic transformation of different plant species. In this article, we review the molecular basis and applications of developmental regulatory genes and nanoparticles in plant transformation and discuss how to further promote genotype-independent plant transformation.
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Affiliation(s)
- Tingwei Yan
- Research Institute of Biology and Agriculture, Shunde Innovation School, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Quancan Hou
- Research Institute of Biology and Agriculture, Shunde Innovation School, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
- Zhongzhi International Institute of Agricultural Biosciences, Beijing, 100083, China
| | - Xun Wei
- Research Institute of Biology and Agriculture, Shunde Innovation School, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
- Zhongzhi International Institute of Agricultural Biosciences, Beijing, 100083, China
| | - Yuchen Qi
- Research Institute of Biology and Agriculture, Shunde Innovation School, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Aqing Pu
- Research Institute of Biology and Agriculture, Shunde Innovation School, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Suowei Wu
- Research Institute of Biology and Agriculture, Shunde Innovation School, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
- Zhongzhi International Institute of Agricultural Biosciences, Beijing, 100083, China
- Beijing Engineering Laboratory of Main Crop Bio-Tech Breeding, Beijing International Science and Technology Cooperation Base of Bio-Tech Breeding, Beijing Solidwill Sci-Tech Co. Ltd., Beijing, 100192, China
| | - Xueli An
- Research Institute of Biology and Agriculture, Shunde Innovation School, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
- Zhongzhi International Institute of Agricultural Biosciences, Beijing, 100083, China
- Beijing Engineering Laboratory of Main Crop Bio-Tech Breeding, Beijing International Science and Technology Cooperation Base of Bio-Tech Breeding, Beijing Solidwill Sci-Tech Co. Ltd., Beijing, 100192, China
| | - Xiangyuan Wan
- Research Institute of Biology and Agriculture, Shunde Innovation School, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China.
- Zhongzhi International Institute of Agricultural Biosciences, Beijing, 100083, China.
- Beijing Engineering Laboratory of Main Crop Bio-Tech Breeding, Beijing International Science and Technology Cooperation Base of Bio-Tech Breeding, Beijing Solidwill Sci-Tech Co. Ltd., Beijing, 100192, China.
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Suprun AR, Kiselev KV, Dubrovina AS. Exogenously Induced Silencing of Four MYB Transcription Repressor Genes and Activation of Anthocyanin Accumulation in Solanum lycopersicum. Int J Mol Sci 2023; 24:ijms24119344. [PMID: 37298295 DOI: 10.3390/ijms24119344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 05/16/2023] [Accepted: 05/25/2023] [Indexed: 06/12/2023] Open
Abstract
RNA interference (RNAi) is a natural post-transcriptional regulatory mechanism that can be artificially induced by exogenous application of double-stranded RNAs (dsRNAs) to the plant surfaces. Recent studies show that it is possible to silence plant genes and change plant properties using plant RNA spraying and other approaches for dsRNA delivery. In this study, we investigated the effect of exogenous gene-specific dsRNAs on the silencing of four tomato genes encoding MYB-family transcription repressors of anthocyanin biosynthesis in the leaves of tomato Solanum lycopersicum L. We found that the exogenous application of dsRNAs encoding for the SlMYBATV1, SlMYB32, SlMYB76, and SlTRY genes downregulated mRNA levels of these endogenous repressors of anthocyanin production, upregulated the expression of anthocyanin biosynthesis-related genes, and enhanced anthocyanin content in the leaves of S. lycopersicum. The data demonstrated that exogenous gene-specific dsRNAs can induce post-transcriptional gene silencing in tomato leaves by direct foliar application of dsRNAs. This approach may be used for plant secondary metabolism induction and as a silencing tool for gene function studies without the need to produce genetically modified plants.
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Affiliation(s)
- Andrey R Suprun
- Laboratory of Biotechnology, Federal Scientific Center of the East Asia Terrestrial Biodiversity, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok 690022, Russia
| | - Konstantin V Kiselev
- Laboratory of Biotechnology, Federal Scientific Center of the East Asia Terrestrial Biodiversity, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok 690022, Russia
| | - Alexandra S Dubrovina
- Laboratory of Biotechnology, Federal Scientific Center of the East Asia Terrestrial Biodiversity, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok 690022, Russia
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