|
1
|
Arora AK, Kang DS. Efficacy and Fate of RNA Interference Molecules in the Green Pea Aphid, Acyrthosiphon pisum. ARCHIVES OF INSECT BIOCHEMISTRY AND PHYSIOLOGY 2024; 117:e70018. [PMID: 39726327 DOI: 10.1002/arch.70018] [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: 08/21/2024] [Revised: 12/01/2024] [Accepted: 12/04/2024] [Indexed: 12/28/2024]
Abstract
RNA interference (RNAi) is a promising technology for controlling insect pests of agriculture. This technology is mediated through the application of double-stranded RNAs (dsRNAs), which are processed within the insect cells into small interfering RNAs (siRNAs). These molecules then target and reduce the expression of the insect-specific genes that can kill or reduce the performance of the pest. The application of these RNA biopesticides generally falls under two methods: foliar sprays and expression of RNAi constructs within transgenic plants. Here, we provide evidence supporting feasibility of using transgenic plants to deliver RNAi-based biopesticides against their aphid pests. Our findings suggest that, under the Cucumis melo galactinol synthase 1 promoter, the companion cells of transformed Arabidopsis thaliana plants express dsRNAs but not siRNAs at detectable levels. Further, oral application of either siRNAs or dsRNAs is equally effective in reducing the expression of transcripts of the integral membrane protein aquaporin 1 in Acyrthosiphon pisum pea aphids. We did not find any dsRNAs or siRNAs remaining in the insects or honeydew 48 h post-exposure, suggesting a low risk of contamination of these molecules beyond the target phloem-piercing insect pests.
Collapse
Affiliation(s)
- Arinder K Arora
- Department of Entomology, Texas A&M University, College Station, Texas, USA
| | - David S Kang
- Biological Control of Insects Research Laboratory, Research Park, USDA Agricultural Research Service, Columbia, Missouri, USA
| |
Collapse
|
|
2
|
Jing S, Yang J, Liu Y, Wang F, Zheng F, Ren A, Yu B, Zhao Y, Jia B, Chen R, Yu B, Liu Q, Xu J. Functional Analysis of CPSF30 in Nilaparvata lugens Using RNA Interference Reveals Its Essential Role in Development and Survival. INSECTS 2024; 15:860. [PMID: 39590459 PMCID: PMC11594811 DOI: 10.3390/insects15110860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2024] [Revised: 10/27/2024] [Accepted: 11/01/2024] [Indexed: 11/28/2024]
Abstract
The brown planthopper (Nilaparvata lugens) is a major pest threatening global rice production, significantly reducing yields annually. As N. lugens increasingly develops resistance to conventional control methods, such as chemical pesticides, there is an urgent need for innovative and sustainable pest management strategies. Cleavage and Polyadenylation Specificity Factor 30 (CPSF30) is a key protein involved in mRNA 3' end processing, yet its function in N. lugens remains poorly understood. This study aims to elucidate the role of CPSF30 in the growth and development of N. lugens and evaluate its potential as a target for RNA interference (RNAi)-based pest control strategies. We cloned and characterized the cDNA sequence of NlCPSF30, which encodes a protein of 341 amino acids containing five CCCH zinc-finger domains and two CCHC zinc-knuckle domains. Sequence alignment revealed that NlCPSF30 is highly conserved among insect species, particularly in the zinc-finger domains essential for RNA binding and processing. Phylogenetic analysis showed that NlCPSF30 is closely related to CPSF30 proteins from other hemipteran species. Expression analysis indicated that NlCPSF30 is most highly expressed in the fat body and during the adult stage, with significantly higher expression in females than in males. RNAi-mediated silencing of NlCPSF30 in third-instar nymphs resulted in severe phenotypic abnormalities, including disrupted molting and increased mortality following injection of double-stranded RNA (dsRNA) targeting NlCPSF30. Moreover, it influenced the expression of genes associated with hormone regulation, namely NlHry, NlE93, and NlKr-h1. These results suggest that NlCPSF30 is integral to critical physiological processes, with its disruption leading to increased mortality. Our findings identify NlCPSF30 as an essential gene for N. lugens' survival and a promising target for RNAi-based pest management strategies. This study provides a valuable molecular target and theoretical insights for developing RNAi-based control methods against N. lugens.
Collapse
Affiliation(s)
- Shengli Jing
- College of Life Sciences, Xinyang Normal University, Xinyang 464000, China; (S.J.); (J.Y.); (Y.L.); (F.W.); (F.Z.); (A.R.); (B.Y.); (Y.Z.); (B.J.); (R.C.); (B.Y.); (Q.L.)
| | - Jing Yang
- College of Life Sciences, Xinyang Normal University, Xinyang 464000, China; (S.J.); (J.Y.); (Y.L.); (F.W.); (F.Z.); (A.R.); (B.Y.); (Y.Z.); (B.J.); (R.C.); (B.Y.); (Q.L.)
| | - Yali Liu
- College of Life Sciences, Xinyang Normal University, Xinyang 464000, China; (S.J.); (J.Y.); (Y.L.); (F.W.); (F.Z.); (A.R.); (B.Y.); (Y.Z.); (B.J.); (R.C.); (B.Y.); (Q.L.)
| | - Feifei Wang
- College of Life Sciences, Xinyang Normal University, Xinyang 464000, China; (S.J.); (J.Y.); (Y.L.); (F.W.); (F.Z.); (A.R.); (B.Y.); (Y.Z.); (B.J.); (R.C.); (B.Y.); (Q.L.)
| | - Fang Zheng
- College of Life Sciences, Xinyang Normal University, Xinyang 464000, China; (S.J.); (J.Y.); (Y.L.); (F.W.); (F.Z.); (A.R.); (B.Y.); (Y.Z.); (B.J.); (R.C.); (B.Y.); (Q.L.)
| | - Aobo Ren
- College of Life Sciences, Xinyang Normal University, Xinyang 464000, China; (S.J.); (J.Y.); (Y.L.); (F.W.); (F.Z.); (A.R.); (B.Y.); (Y.Z.); (B.J.); (R.C.); (B.Y.); (Q.L.)
| | - Bingbing Yu
- College of Life Sciences, Xinyang Normal University, Xinyang 464000, China; (S.J.); (J.Y.); (Y.L.); (F.W.); (F.Z.); (A.R.); (B.Y.); (Y.Z.); (B.J.); (R.C.); (B.Y.); (Q.L.)
| | - Yue Zhao
- College of Life Sciences, Xinyang Normal University, Xinyang 464000, China; (S.J.); (J.Y.); (Y.L.); (F.W.); (F.Z.); (A.R.); (B.Y.); (Y.Z.); (B.J.); (R.C.); (B.Y.); (Q.L.)
| | - Bing Jia
- College of Life Sciences, Xinyang Normal University, Xinyang 464000, China; (S.J.); (J.Y.); (Y.L.); (F.W.); (F.Z.); (A.R.); (B.Y.); (Y.Z.); (B.J.); (R.C.); (B.Y.); (Q.L.)
| | - Ruixian Chen
- College of Life Sciences, Xinyang Normal University, Xinyang 464000, China; (S.J.); (J.Y.); (Y.L.); (F.W.); (F.Z.); (A.R.); (B.Y.); (Y.Z.); (B.J.); (R.C.); (B.Y.); (Q.L.)
| | - Bin Yu
- College of Life Sciences, Xinyang Normal University, Xinyang 464000, China; (S.J.); (J.Y.); (Y.L.); (F.W.); (F.Z.); (A.R.); (B.Y.); (Y.Z.); (B.J.); (R.C.); (B.Y.); (Q.L.)
| | - Qingsong Liu
- College of Life Sciences, Xinyang Normal University, Xinyang 464000, China; (S.J.); (J.Y.); (Y.L.); (F.W.); (F.Z.); (A.R.); (B.Y.); (Y.Z.); (B.J.); (R.C.); (B.Y.); (Q.L.)
- State Key Laboratory of Cotton Bio-Breeding and Integrated Utilization, State Key Laboratory of Crop Stress Adaptation and Improvement, Key Laboratory of Plant Stress Biology, School of Life Sciences, Henan University, Kaifeng 475004, China
| | - Jingang Xu
- College of Life Sciences, Xinyang Normal University, Xinyang 464000, China; (S.J.); (J.Y.); (Y.L.); (F.W.); (F.Z.); (A.R.); (B.Y.); (Y.Z.); (B.J.); (R.C.); (B.Y.); (Q.L.)
| |
Collapse
|
|
3
|
Ahmad S, Jamil M, Jaworski CC, Wu Y, Palma-Onetto V, Lyu B, Luo Y. Knockdown of the ecdysone receptor disrupts development and causes mortality in the melon fly, Zeugodacus cucurbitae. INSECT MOLECULAR BIOLOGY 2023; 32:738-747. [PMID: 37646607 DOI: 10.1111/imb.12867] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 08/11/2023] [Indexed: 09/01/2023]
Abstract
Cucurbits are important economic plants that are attacked by numerous pests, among which the melon fly Zeugodacus cucurbitae is extremely problematic. New sustainable pest control strategies are necessary to replace chemical insecticides that are harmful to the environment, human health and nontarget species. The RNA interference (RNAi) technology is one of the most promising tools due to high efficiency and species specificity. We developed an RNAi strategy targeting the ecdysone receptor (ECR) of Z. cucurbitae, which plays an important role in moulting and reproduction. We identified, described and isolated the ECR gene of Z. cucurbitae and measured its expression pattern across developmental stages and tissues. ZcECR knockdown via dsZcECR ingestion caused a significant larval mortality and abnormal phenotypes in pupae and adults. About 68% of larvae fed with a dsZcECR-treated diet failed to enter the pupal stage and died. In addition, ZcECR knockdown dramatically reduced pupal weight (by 3.24 mg on average) and fecundity (by about 23%). RNAi targeting the ECR gene is therefore a promising method to control Z. cucurbitae, paving the way for the development of novel sustainable and highly specific control strategies.
Collapse
Affiliation(s)
- Shakil Ahmad
- School of Plant Protection, Department of Pesticide Science, Hainan University, Haikou, Hainan, China
| | - Momana Jamil
- School of Plant Protection, Department of Pesticide Science, Hainan University, Haikou, Hainan, China
| | | | - Yuejie Wu
- School of Plant Protection, Department of Pesticide Science, Hainan University, Haikou, Hainan, China
| | - Valeria Palma-Onetto
- Departamento de Química Ambiental, Facultad de Ciencias, Universidad Católica de la Santísima Concepción, Concepción, Chile
| | - Baoqian Lyu
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture and Rural Affairs, Haikou, China
| | - Yanping Luo
- School of Plant Protection, Department of Pesticide Science, Hainan University, Haikou, Hainan, China
| |
Collapse
|
|
4
|
Singewar K, Fladung M. Double-stranded RNA (dsRNA) technology to control forest insect pests and fungal pathogens: challenges and opportunities. Funct Integr Genomics 2023; 23:185. [PMID: 37243792 PMCID: PMC10220346 DOI: 10.1007/s10142-023-01107-y] [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: 07/04/2022] [Revised: 05/12/2023] [Accepted: 05/15/2023] [Indexed: 05/29/2023]
Abstract
Climate change alters the seasonal synchronization between plants and respective pests plus pathogens. The geographical infiltration helps to shift their hosts, resulting in novel outbreaks that damage forests and ecology. Traditional management schemes are unable to control such outbreaks, therefore unconventional and competitive governance is needed to manage forest pests and pathogens. RNA interference (RNAi) mediated double-stranded RNA (dsRNA) treatment method can be implemented to protect forest trees. Exogenous dsRNA triggers the RNAi-mediated gene silencing of a vital gene, and suspends protein production, resulting in the death of targeted pathogens and pests. The dsRNA treatment method is successful for many crop insects and fungi, however, studies of dsRNA against forest pests and pathogens are depleting. Pesticides and fungicides based on dsRNA could be used to combat pathogens that caused outbreaks in different parts of the world. Although the dsRNA has proved its potential, the crucial dilemma and risks including species-specific gene selection, and dsRNA delivery methods cannot be overlooked. Here, we summarized the major fungi pathogens and insect pests that have caused outbreaks, their genomic information, and studies on dsRNA fungi-and pesticides. Current challenges and opportunities in dsRNA target decision, delivery using nanoparticles, direct applications, and a new method using mycorrhiza for forest tree protection are discussed. The importance of affordable next-generation sequencing to minimize the impact on non-target species is discussed. We suggest that collaborative research among forest genomics and pathology institutes could develop necessary dsRNA strategies to protect forest tree species.
Collapse
Affiliation(s)
- Kiran Singewar
- Thünen Institute of Forest Genetics, 22927, Großhansdorf, Germany.
| | - Matthias Fladung
- Thünen Institute of Forest Genetics, 22927, Großhansdorf, Germany.
| |
Collapse
|
|
5
|
Finetti L, Benetti L, Leyria J, Civolani S, Bernacchia G. Topical delivery of dsRNA in two hemipteran species: Evaluation of RNAi specificity and non-target effects. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2023; 189:105295. [PMID: 36549821 DOI: 10.1016/j.pestbp.2022.105295] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 11/10/2022] [Accepted: 11/14/2022] [Indexed: 06/17/2023]
Abstract
Double-stranded (ds) RNA-based technologies could provide novel and potential tool for pest management with efficiency and specificity of action. However, before applying this technique in the field, it is necessary to identify effective delivery methods and evaluate the non-target effects that may occur. In this article, we evaluated the effectiveness of dsRNA by topical delivery on a species of great agricultural interest, Halyomorpha halys. The specificity of action of the dsRNA was also investigated in Rhodnius prolixus, an insect phylogenetically close to H. halys. Of the three investigated genes (putative ATPase N2B, ATPase, serine/threonine-protein phosphatase PP1-β catalytic subunit, PP1, and IAP repeat-containing protein 7-B-like, IAP), IAP and ATPase were able to induce higher mortality in H. halys nymphs compared to the control, with specific concentrations for each gene targeted. However, when the same RNAs were topically delivered to both R. prolixus 2nd and 3rd instar nymphs, no gene silencing and mortality were observed. For this reason, to assess dsRNA application-mediated non-target effects, we injected both H. halys and R. prolixus specific dsRNA in R. prolixus 5th instar nymphs. When the dsRNA targeting H. halys IAP was microinjected into R. prolixus 5th instar nymphs, no mortality was observed, suggesting a strong RNAi specificity. Together, these data suggest that the topical delivery could be suitable for the dsRNA to control H. halys population. Furthermore, its specificity of action would allow treatments towards single harmful species with limited non-target effects.
Collapse
Affiliation(s)
- Luca Finetti
- Department of Biology, University of Toronto Mississauga, Mississauga, ON, Canada.
| | - Lorenzo Benetti
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy
| | - Jimena Leyria
- Department of Biology, University of Toronto Mississauga, Mississauga, ON, Canada
| | - Stefano Civolani
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Ferrara, Italy
| | - Giovanni Bernacchia
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy
| |
Collapse
|
|
6
|
Lucena-Leandro VS, Abreu EFA, Vidal LA, Torres CR, Junqueira CICVF, Dantas J, Albuquerque ÉVS. Current Scenario of Exogenously Induced RNAi for Lepidopteran Agricultural Pest Control: From dsRNA Design to Topical Application. Int J Mol Sci 2022; 23:ijms232415836. [PMID: 36555476 PMCID: PMC9785151 DOI: 10.3390/ijms232415836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 11/24/2022] [Accepted: 11/25/2022] [Indexed: 12/24/2022] Open
Abstract
Invasive insects cost the global economy around USD 70 billion per year. Moreover, increasing agricultural insect pests raise concerns about global food security constraining and infestation rising after climate changes. Current agricultural pest management largely relies on plant breeding-with or without transgenes-and chemical pesticides. Both approaches face serious technological obsolescence in the field due to plant resistance breakdown or development of insecticide resistance. The need for new modes of action (MoA) for managing crop health is growing each year, driven by market demands to reduce economic losses and by consumer demand for phytosanitary measures. The disabling of pest genes through sequence-specific expression silencing is a promising tool in the development of environmentally-friendly and safe biopesticides. The specificity conferred by long dsRNA-base solutions helps minimize effects on off-target genes in the insect pest genome and the target gene in non-target organisms (NTOs). In this review, we summarize the status of gene silencing by RNA interference (RNAi) for agricultural control. More specifically, we focus on the engineering, development and application of gene silencing to control Lepidoptera through non-transforming dsRNA technologies. Despite some delivery and stability drawbacks of topical applications, we reviewed works showing convincing proof-of-concept results that point to innovative solutions. Considerations about the regulation of the ongoing research on dsRNA-based pesticides to produce commercialized products for exogenous application are discussed. Academic and industry initiatives have revealed a worthy effort to control Lepidoptera pests with this new mode of action, which provides more sustainable and reliable technologies for field management. New data on the genomics of this taxon may contribute to a future customized target gene portfolio. As a case study, we illustrate how dsRNA and associated methodologies could be applied to control an important lepidopteran coffee pest.
Collapse
Affiliation(s)
| | | | - Leonardo A. Vidal
- Embrapa Recursos Genéticos e Biotecnologia, Brasília 70770-917, DF, Brazil
- Department of Cellular Biology, Institute of Biological Sciences, Campus Darcy Ribeiro, Universidade de Brasília—UnB, Brasília 70910-9002, DF, Brazil
| | - Caroline R. Torres
- Embrapa Recursos Genéticos e Biotecnologia, Brasília 70770-917, DF, Brazil
- Department of Agronomy and Veterinary Medicine, Campus Darcy Ribeiro, Universidade de Brasília—UnB, Brasília 70910-9002, DF, Brazil
| | - Camila I. C. V. F. Junqueira
- Embrapa Recursos Genéticos e Biotecnologia, Brasília 70770-917, DF, Brazil
- Department of Agronomy and Veterinary Medicine, Campus Darcy Ribeiro, Universidade de Brasília—UnB, Brasília 70910-9002, DF, Brazil
| | - Juliana Dantas
- Embrapa Recursos Genéticos e Biotecnologia, Brasília 70770-917, DF, Brazil
| | | |
Collapse
|
|
7
|
Ripamonti M, Cerone L, Abbà S, Rossi M, Ottati S, Palmano S, Marzachì C, Galetto L. Silencing of ATP Synthase β Impairs Egg Development in the Leafhopper Scaphoideus titanus, Vector of the Phytoplasma Associated with Grapevine Flavescence Dorée. Int J Mol Sci 2022; 23:765. [PMID: 35054956 PMCID: PMC8775575 DOI: 10.3390/ijms23020765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 12/29/2021] [Accepted: 01/07/2022] [Indexed: 11/17/2022] Open
Abstract
Scaphoideus titanus (Hemiptera: Cicadellidae) is the natural vector of Flavescence dorée phytoplasma, a quarantine pest of grapevine with severe impact on European viticulture. RNA interference (RNAi) machinery components are present in S. titanus transcriptome and injection of ATP synthase β dsRNAs into adults caused gene silencing, starting three days post injection (dpi) up to 20 dpi, leading to decrease cognate protein. Silencing of this gene in the closely related leafhopper Euscelidiusvariegatus previously showed female sterility and lack of mature eggs in ovaries. Here, alteration of developing egg morphology in S. titanus ovaries as well as overexpression of hexamerin transcript (amino acid storage protein) and cathepsin L protein (lysosome proteinase) were observed in dsATP-injected females. To evaluate RNAi-specificity, E.variegatus was used as dsRNA-receiving model-species. Different doses of two sets of dsRNA-constructs targeting distinct portions of ATP synthase β gene of both species induced silencing, lack of egg development, and female sterility in E. variegatus, indicating that off-target effects must be evaluated case by case. The effectiveness of RNAi in S. titanus provides a powerful tool for functional genomics of this non-model species and paves the way toward RNAi-based strategies to limit vector population, despite several technical and regulatory constraints that still need to be overcome to allow open field application.
Collapse
Affiliation(s)
- Matteo Ripamonti
- Istituto per la Protezione Sostenibile Delle Piante, Consiglio Nazionale Delle Ricerche, IPSP-CNR, Strada delle Cacce 73, 10135 Torino, Italy; (M.R.); (L.C.); (S.A.); (M.R.); (S.O.); (S.P.); (C.M.)
- Environmental Research and Innovation Department (ERIN), Luxembourg Institute of Science and Technology (LIST), 41 Rue du Brill, 4422 Luxembourg, Luxembourg
| | - Luca Cerone
- Istituto per la Protezione Sostenibile Delle Piante, Consiglio Nazionale Delle Ricerche, IPSP-CNR, Strada delle Cacce 73, 10135 Torino, Italy; (M.R.); (L.C.); (S.A.); (M.R.); (S.O.); (S.P.); (C.M.)
- Dipartimento di Scienze Agrarie, Forestali ed Alimentari DISAFA, Università degli Studi di Torino, Largo Paolo Braccini 2, Grugliasco, 10095 Torino, Italy
| | - Simona Abbà
- Istituto per la Protezione Sostenibile Delle Piante, Consiglio Nazionale Delle Ricerche, IPSP-CNR, Strada delle Cacce 73, 10135 Torino, Italy; (M.R.); (L.C.); (S.A.); (M.R.); (S.O.); (S.P.); (C.M.)
| | - Marika Rossi
- Istituto per la Protezione Sostenibile Delle Piante, Consiglio Nazionale Delle Ricerche, IPSP-CNR, Strada delle Cacce 73, 10135 Torino, Italy; (M.R.); (L.C.); (S.A.); (M.R.); (S.O.); (S.P.); (C.M.)
| | - Sara Ottati
- Istituto per la Protezione Sostenibile Delle Piante, Consiglio Nazionale Delle Ricerche, IPSP-CNR, Strada delle Cacce 73, 10135 Torino, Italy; (M.R.); (L.C.); (S.A.); (M.R.); (S.O.); (S.P.); (C.M.)
- Dipartimento di Scienze Agrarie, Forestali ed Alimentari DISAFA, Università degli Studi di Torino, Largo Paolo Braccini 2, Grugliasco, 10095 Torino, Italy
| | - Sabrina Palmano
- Istituto per la Protezione Sostenibile Delle Piante, Consiglio Nazionale Delle Ricerche, IPSP-CNR, Strada delle Cacce 73, 10135 Torino, Italy; (M.R.); (L.C.); (S.A.); (M.R.); (S.O.); (S.P.); (C.M.)
| | - Cristina Marzachì
- Istituto per la Protezione Sostenibile Delle Piante, Consiglio Nazionale Delle Ricerche, IPSP-CNR, Strada delle Cacce 73, 10135 Torino, Italy; (M.R.); (L.C.); (S.A.); (M.R.); (S.O.); (S.P.); (C.M.)
| | - Luciana Galetto
- Istituto per la Protezione Sostenibile Delle Piante, Consiglio Nazionale Delle Ricerche, IPSP-CNR, Strada delle Cacce 73, 10135 Torino, Italy; (M.R.); (L.C.); (S.A.); (M.R.); (S.O.); (S.P.); (C.M.)
| |
Collapse
|
|
8
|
De Schutter K, Taning CNT, Van Daele L, Van Damme EJM, Dubruel P, Smagghe G. RNAi-Based Biocontrol Products: Market Status, Regulatory Aspects, and Risk Assessment. FRONTIERS IN INSECT SCIENCE 2022; 1:818037. [PMID: 38468882 PMCID: PMC10926433 DOI: 10.3389/finsc.2021.818037] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 12/14/2021] [Indexed: 03/13/2024]
Affiliation(s)
- Kristof De Schutter
- Laboratory of Agrozoology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Clauvis Nji Tizi Taning
- Laboratory of Agrozoology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Lenny Van Daele
- Polymer Chemistry and Biomaterials Group, Department of Organic and Macromolecular Chemistry, Center of Macromolecular Chemistry, Faculty of Sciences, Ghent University, Ghent, Belgium
| | - Els J. M. Van Damme
- Laboratory of Biochemistry and Glycobiology, Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Peter Dubruel
- Polymer Chemistry and Biomaterials Group, Department of Organic and Macromolecular Chemistry, Center of Macromolecular Chemistry, Faculty of Sciences, Ghent University, Ghent, Belgium
| | - Guy Smagghe
- Laboratory of Agrozoology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| |
Collapse
|
|
9
|
Joga MR, Mogilicherla K, Smagghe G, Roy A. RNA Interference-Based Forest Protection Products (FPPs) Against Wood-Boring Coleopterans: Hope or Hype? FRONTIERS IN PLANT SCIENCE 2021; 12:733608. [PMID: 34567044 PMCID: PMC8461336 DOI: 10.3389/fpls.2021.733608] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 08/17/2021] [Indexed: 06/01/2023]
Abstract
Forest insects are emerging in large extension in response to ongoing climatic changes, penetrating geographic barriers, utilizing novel hosts, and influencing many hectares of conifer forests worldwide. Current management strategies have been unable to keep pace with forest insect population outbreaks, and therefore novel and aggressive management strategies are urgently required to manage forest insects. RNA interference (RNAi), a Noble Prize-winning discovery, is an emerging approach that can be used for forest protection. The RNAi pathway is triggered by dsRNA molecules, which, in turn, silences genes and disrupts protein function, ultimately causing the death of the targeted insect. RNAi is very effective against pest insects; however, its proficiency varies significantly among insect species, tissues, and genes. The coleopteran forest insects are susceptible to RNAi and can be the initial target, but we lack practical means of delivery, particularly in systems with long-lived, endophagous insects such as the Emerald ash borer, Asian longhorn beetles, and bark beetles. The widespread use of RNAi in forest pest management has major challenges, including its efficiency, target gene selection, dsRNA design, lack of reliable dsRNA delivery methods, non-target and off-target effects, and potential resistance development in wood-boring pest populations. This review focuses on recent innovations in RNAi delivery that can be deployed against forest pests, such as cationic liposome-assisted (lipids), nanoparticle-enabled (polymers or peptides), symbiont-mediated (fungi, bacteria, and viruses), and plant-mediated deliveries (trunk injection, root absorption). Our findings guide future risk analysis of dsRNA-based forest protection products (FPPs) and risk assessment frameworks incorporating sequence complementarity-based analysis for off-target predictions. This review also points out barriers to further developing RNAi for forest pest management and suggests future directions of research that will build the future use of RNAi against wood-boring coleopterans.
Collapse
Affiliation(s)
- Mallikarjuna Reddy Joga
- Excellent Team for Mitigation, Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czechia
| | - Kanakachari Mogilicherla
- EVA.4 Unit, Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czechia
| | - Guy Smagghe
- Laboratory of Agrozoology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Amit Roy
- Excellent Team for Mitigation, Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czechia
- EVA.4 Unit, Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czechia
| |
Collapse
|