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Lyu Z, Chen J, Lyu J, Guo P, Liu J, Liu J, Zhang W. Spraying double-stranded RNA targets UDP-N-acetylglucosamine pyrophosphorylase in the control of Nilaparvata lugens. Int J Biol Macromol 2024; 271:132455. [PMID: 38795878 DOI: 10.1016/j.ijbiomac.2024.132455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 05/04/2024] [Accepted: 05/14/2024] [Indexed: 05/28/2024]
Abstract
The rice pest Nilaparvata lugens (the brown planthopper, BPH) has developed different levels of resistance to at least 11 chemical pesticides. RNAi technology has contributed to the development of environmentally friendly RNA biopesticides designed to reduce chemical use. Consequently, more precise targets need to be identified and characterized, and efficient dsRNA delivery methods are necessary for effective field pest control. In this study, a low off-target risk dsNlUAP fragment (166 bp) was designed in silico to minimize the potential adverse effects on non-target organisms. Knockdown of NlUAP via microinjection significantly decreased the content of UDP-N-acetylglucosamine and chitin, causing chitinous structural disorder and abnormal phenotypes in wing and body wall, reduced fertility, and resulted in pest mortality up to 100 %. Furthermore, dsNlUAP was loaded with ROPE@C, a chitosan-modified nanomaterial for spray application, which significantly downregulated the expression of NlUAP, led to 48.9 % pest mortality, and was confirmed to have no adverse effects on Cyrtorhinus lividipennis, an important natural enemy of BPH. These findings will contribute to the development of safer biopesticides for the control of N. lugens.
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Affiliation(s)
- Zihao Lyu
- State Key Laboratory of Biocontrol, School of Agriculture, Sun Yat-sen University, Guangzhou, China
| | - Jingxiang Chen
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Jun Lyu
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Pingping Guo
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Jiahui Liu
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Jinhui Liu
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Wenqing Zhang
- State Key Laboratory of Biocontrol, School of Agriculture, Sun Yat-sen University, Guangzhou, China; State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China.
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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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Wu H, Wan X, Niu J, Cao Y, Wang S, Zhang Y, Guo Y, Xu H, Xue X, Yao J, Zhu C, Li Y, Li Q, Lu T, Yu H, Jiang W. Enhancing iron content and growth of cucumber seedlings with MgFe-LDHs under low-temperature stress. J Nanobiotechnology 2024; 22:268. [PMID: 38764056 PMCID: PMC11103931 DOI: 10.1186/s12951-024-02545-x] [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: 03/24/2024] [Accepted: 05/10/2024] [Indexed: 05/21/2024] Open
Abstract
The development of cost-effective and eco-friendly fertilizers is crucial for enhancing iron (Fe) uptake in crops and can help alleviate dietary Fe deficiencies, especially in populations with limited access to meat. This study focused on the application of MgFe-layered double hydroxide nanoparticles (MgFe-LDHs) as a potential solution. We successfully synthesized and characterized MgFe-LDHs and observed that 1-10 mg/L MgFe-LDHs improved cucumber seed germination and water uptake. Notably, the application of 10 mg/L MgFe-LDHs to roots significantly increased the seedling emergence rate and growth under low-temperature stress. The application of 10 mg/L MgFe-LDHs during sowing increased the root length, lateral root number, root fresh weight, aboveground fresh weight, and hypocotyl length under low-temperature stress. A comprehensive analysis integrating plant physiology, nutrition, and transcriptomics suggested that MgFe-LDHs improve cold tolerance by upregulating SA to stimulate CsFAD3 expression, elevating GA3 levels for enhanced nitrogen metabolism and protein synthesis, and reducing levels of ABA and JA to support seedling emergence rate and growth, along with increasing the expression and activity of peroxidase genes. SEM and FTIR further confirmed the adsorption of MgFe-LDHs onto the root hairs in the mature zone of the root apex. Remarkably, MgFe-LDHs application led to a 46% increase (p < 0.05) in the Fe content within cucumber seedlings, a phenomenon not observed with comparable iron salt solutions, suggesting that the nanocrystalline nature of MgFe-LDHs enhances their absorption efficiency in plants. Additionally, MgFe-LDHs significantly increased the nitrogen (N) content of the seedlings by 12% (p < 0.05), promoting nitrogen fixation in the cucumber seedlings. These results pave the way for the development and use of LDH-based Fe fertilizers.
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Affiliation(s)
- Hongyang Wu
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
| | - Xiaoyang Wan
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Jiefei Niu
- Research Unit of Molecular Epidemiology, Helmholtz Zentrum München, Neuherberg, 85764, Germany
- Faculty of Medicine, Ludwig- Maximilians-University München, Munich, 81377, Germany
| | - Yidan Cao
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Shufang Wang
- Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
| | - Yu Zhang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Yayu Guo
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing, 100083, China
| | - Huimin Xu
- College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Xian Xue
- College of Agriculture, Henan University of Science and Technology, Luoyang, 471000, China
| | - Jun Yao
- Guangdong Provincial Key Laboratory of Silviculture, Protection and Utilization, Guangdong Academy of Forestry, Guangzhou, 510520, China
| | - Cuifang Zhu
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Yang Li
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Qiang Li
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Tao Lu
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Hongjun Yu
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
| | - Weijie Jiang
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
- College of Horticulture, Xinjiang Agricultural University, Urumqi, 830052, China.
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Zhao X, Liu Z, Liu Y, Lu M, Xu J, Wu F, Jin W. Development and application of an RNA nanostructure to induce transient RNAi in difficult transgenic plants. Biotechnol J 2024; 19:e2400024. [PMID: 38797726 DOI: 10.1002/biot.202400024] [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: 01/10/2024] [Revised: 05/09/2024] [Accepted: 05/10/2024] [Indexed: 05/29/2024]
Abstract
The development of RNA interference (RNAi) is crucial for studying plant gene function. Its use, is limited to a few plants with well-established transgenic techniques. Spray-induced gene silencing (SIGS) introduces exogenous double-stranded RNA (dsRNA) into plants by spraying, injection, or irrigation, triggering the RNAi pathway to instantly silence target genes. As is a transient RNAi technology that does not rely on transgenic methods, SIGS has significant potential for studying gene function in plants lacking advanced transgenic technology. In this study, to enhance their stability and delivery efficiency, siRNAs were used as structural motifs to construct RNA nanoparticles (NPs) of four shapes: triangle, square, pentagon, and hexagon. These NPs, when synthesized by Escherichia coli, showed that triangular and square shapes accumulated more efficiently than pentagon and hexagon shapes. Bioassays revealed that RNA squares had the highest RNAi efficiency, followed by RNA triangles, with GFP-dsRNA showing the lowest efficiency at 4 and 7 days post-spray. We further explored the use of RNA squares in inducing transient RNAi in plants that are difficult to transform genetically. The results indicated that Panax notoginseng-derived MYB2 (PnMYB2) and Camellia oleifera-derived GUT (CoGUT) were significantly suppressed in P. notoginseng and C. oleifera, respectively, following the application of PnMYB2- and CoGUT-specific RNA squares. These findings suggest that RNA squares are highly effective in SIGS and can be utilized for gene function research in plants.
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Affiliation(s)
- Xiayang Zhao
- Key Laboratory of Plant Secondary Metabolism and Regulation of Zhejiang Province, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, China
| | - Zhekai Liu
- Key Laboratory of Plant Secondary Metabolism and Regulation of Zhejiang Province, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, China
- Zhejiang Sci-Tech University Shaoxing Academy of Biomedicine Co. Ltd., Shaoxing, Zhejiang, China
| | - Yiqing Liu
- Key Laboratory of Plant Secondary Metabolism and Regulation of Zhejiang Province, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, China
- Zhejiang Sci-Tech University Shaoxing Academy of Biomedicine Co. Ltd., Shaoxing, Zhejiang, China
| | - Mingdong Lu
- Key Laboratory of Plant Secondary Metabolism and Regulation of Zhejiang Province, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, China
- Zhejiang Sci-Tech University Shaoxing Academy of Biomedicine Co. Ltd., Shaoxing, Zhejiang, China
| | - Jinfeng Xu
- Zhejiang Sci-Tech University Shaoxing Academy of Biomedicine Co. Ltd., Shaoxing, Zhejiang, China
| | - Fangli Wu
- Key Laboratory of Plant Secondary Metabolism and Regulation of Zhejiang Province, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, China
| | - Weibo Jin
- Key Laboratory of Plant Secondary Metabolism and Regulation of Zhejiang Province, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, China
- Zhejiang Sci-Tech University Shaoxing Academy of Biomedicine Co. Ltd., Shaoxing, Zhejiang, China
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Wang Y, Li X, Zhu C, Yi S, Zhang Y, Hong Z. Plant-derived artificial miRNA effectively reduced the proliferation of aphid (Aphidoidea) through spray-induced gene silencing. PEST MANAGEMENT SCIENCE 2024. [PMID: 38647144 DOI: 10.1002/ps.8138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 04/02/2024] [Accepted: 04/22/2024] [Indexed: 04/25/2024]
Abstract
BACKGROUND Aphids (Hemiptera: Aphididae) are notorious sap-sucking insects that rampantly threaten agricultural production worldwide. Current management against aphids in the field heavily relies on chemical pesticides, which makes economical and eco-friendly methods urgently needed. Spray-induced gene silencing (SIGS) offers a powerful and precise approach to pest management. However, the high costs and instability of double-stranded RNA (dsRNA) regulators applied for downstream RNA interference (RNAi) still limit this strategy. It remains uncertain if RNAi regulators applied in SIGS could extend to small RNA (sRNA), especially miRNA. RESULTS We chose two sRNA sequences, miR-9b and miR-VgR, whose corresponding targets ABCG4 and VgR are both essential for aphid growth and development. The efficacy of these sequences was initially verified by chemically synthetic single-stranded RNA (syn-ssRNA). Through spray treatment, we observed a significantly decreased survival number and increased abnormality rate of green peach aphids fed on the host under laboratory conditions. Based on our previous study, we generated transgenic plants expressing artificial miR-9b (amiR-9b) and miR-VgR (amiR-VgR). Remarkably, plant-derived amiRNA exerted potent and long-lasting inhibitory efficacy with merely one percent concentration of chemical synthetics. Notably, the simultaneous application of amiR-9b and amiR-VgR exhibited superior inhibitory efficacy. CONCLUSION We explored the potential use of sRNA-based biopesticide through SIGS while investigating the dosage requirements. To optimize this strategy, the utilization of plant-derived amiRNA was proposed. The results suggested that attributed to stability and durability, deploying amiRNA in pest management is a potential and promising solution for the field application. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Yuan Wang
- State Key Laboratory of Pharmaceutical Biotechnology, NJU Advanced Institute for Life Sciences (NAILS), School of Life Sciences, Nanjing University, Nanjing, China
| | - Xuanlin Li
- State Key Laboratory of Pharmaceutical Biotechnology, NJU Advanced Institute for Life Sciences (NAILS), School of Life Sciences, Nanjing University, Nanjing, China
| | - Chenghong Zhu
- State Key Laboratory of Analytical Chemistry for Life Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Chemistry, and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing, China
| | - Shijie Yi
- State Key Laboratory of Pharmaceutical Biotechnology, NJU Advanced Institute for Life Sciences (NAILS), School of Life Sciences, Nanjing University, Nanjing, China
| | - Yan Zhang
- State Key Laboratory of Analytical Chemistry for Life Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Chemistry, and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing, China
| | - Zhi Hong
- State Key Laboratory of Pharmaceutical Biotechnology, NJU Advanced Institute for Life Sciences (NAILS), School of Life Sciences, Nanjing University, Nanjing, China
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Yong J, Wu M, Carroll BJ, Xu ZP, Zhang R. Enhancing plant biotechnology by nanoparticle delivery of nucleic acids. Trends Genet 2024; 40:352-363. [PMID: 38320883 DOI: 10.1016/j.tig.2024.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 01/12/2024] [Accepted: 01/12/2024] [Indexed: 02/08/2024]
Abstract
Plant biotechnology plays a crucial role in developing modern agriculture and plant science research. However, the delivery of exogenous genetic material into plants has been a long-standing obstacle. Nanoparticle-based delivery systems are being established to address this limitation and are proving to be a feasible, versatile, and efficient approach to facilitate the internalization of functional RNA and DNA by plants. The nanoparticle-based delivery systems can also be designed for subcellular delivery and controlled release of the biomolecular cargo. In this review, we provide a concise overview of the recent advances in nanocarriers for the delivery of biomolecules into plants, with a specific focus on applications to enhance RNA interference, foreign gene transfer, and genome editing in plants.
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Affiliation(s)
- Jiaxi Yong
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, Queensland 4072, Australia; Centre for Horticultural Science, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St Lucia, Queensland 4072, Australia
| | - Miaomiao Wu
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, Queensland 4072, Australia
| | - Bernard J Carroll
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Zhi Ping Xu
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, Queensland 4072, Australia; Institute of Biomedical Health Technology and Engineering and Institute of Systems and Physical Biology, Shenzhen Bay Laboratory, Shenzhen, P. R. China 518107
| | - Run Zhang
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, Queensland 4072, Australia; Centre for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Indooroopilly, Queensland 4068, Australia.
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Han J, Zhu J, Liu S, Sun X, Wang S, Miao G. Enhancing tomato disease resistance through endogenous antifungal proteins and introduced nematode-targeting dsRNA of biocontrol agent Bacillus velezensis HS-3. PEST MANAGEMENT SCIENCE 2024. [PMID: 38511614 DOI: 10.1002/ps.8087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 02/21/2024] [Accepted: 03/21/2024] [Indexed: 03/22/2024]
Abstract
BACKGROUND As a type of biological control agent (BCA), Bacillus velezensis possesses the efficacy of inhibiting pathogenic microorganisms, promoting plant growth, and overcoming continuous cropping obstacles (CCOs). However, there is limited reporting on the optimization of the cultivation conditions for such biocontrol agents and their role as double-stranded RNA (dsRNA) delivery vectors. RESULTS In this study, a Bacillus velezensis strain HS-3 was isolated from the root zone of tomato plants with in vitro anti-Botrytis cinerea activity. The investigation into active compounds revealed that HS-3 predominantly employs proteins with molecular weights greater than 3 kDa for its antifungal activity. Liquid chromatography-tandem mass spectrometry (LC-MS/MS) analysis identified various proteases and chitosanase, further suggesting that HS-3 most likely employs these enzymes to degrade fungal cell walls for its antifungal effect. To optimize the production of extracellular proteins, fermentation parameters for HS-3 were systematically optimized, leading to an optimized medium (OP-M). HS-3 cultured in OP-M demonstrated enhanced capacity to assist tomato plants in withstanding CCOs. However, the presence of excessive nematodes in diseased soil resulted in the disease severity index (DSI) remaining high. An RNA interference mechanism was further introduced to HS-3, targeting the nematode tyrosine phosphatase (TP) gene. Ultimately, HS-3 expressing dsRNA of TP in OP-M effectively assisted tomatoes in mitigating CCOs, reducing DSI to 2.2% and 17.8% of the control after 45 and 90 days of growth, respectively. CONCLUSION The advantages of Bacillus velezensis in crop disease management and the mitigation of CCOs become even more pronounced when utilizing both optimized levels of endogenous enzymes and introduced nematode-targeting dsRNA. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Juan Han
- Department of Bioengineering, Huainan Normal University, Huainan, China
- Institute of Digital Ecology and Health, Huainan Normal University, Huainan, China
| | - Jinchi Zhu
- Department of Bioengineering, Huainan Normal University, Huainan, China
| | - Shuyuan Liu
- Department of Bioengineering, Huainan Normal University, Huainan, China
| | - Xuehan Sun
- Department of Bioengineering, Huainan Normal University, Huainan, China
| | - Shunchang Wang
- Department of Bioengineering, Huainan Normal University, Huainan, China
- Key Laboratory of Bioresource and Environmental Biotechnology of Anhui Higher Education Institutes, Huainan Normal University, Huainan, China
| | - Guopeng Miao
- Department of Bioengineering, Huainan Normal University, Huainan, China
- Institute of Digital Ecology and Health, Huainan Normal University, Huainan, China
- Key Laboratory of Bioresource and Environmental Biotechnology of Anhui Higher Education Institutes, Huainan Normal University, Huainan, China
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Zuo J, Lan R, Lv N, Lin Y, Hao L, Zhou X, Zhou H. A Promising Plant-Based Eugenol-Loaded Nano Delivery System (EUG@CMC-PGMA-CS) for Enhanced Antibacterial and Insect Repellent Behavior. ACS APPLIED BIO MATERIALS 2024; 7:1643-1655. [PMID: 38366996 DOI: 10.1021/acsabm.3c01100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2024]
Abstract
Pathogens and pests pose significant threats to global crop productivity and plant immunity, necessitating urgent measures from researchers to prevent pathogen contamination and pest damage to crops. A natural plant-based antibacterial agent, eugenol (EUG), has demonstrated excellent antimicrobial and insect repellent capabilities, but the characteristics of volatilization and poor dissolution limit the practical application. The nanoization of pesticide formulations holds promise in the development of highly effective pesticides for antibacterial and insecticidal purposes. Herein, a eugenol-loaded nano delivery system (EUG@CMC-PGMA-CS) was synthesized using glycidyl methacrylate (GMA) as a functional monomer to connect carrier core structure carboxymethyl cellulose (CMC) with shell structure chitosan (CS), and EUG was encapsulated within the carrier. EUG@CMC-PGMA-CS demonstrated excellent leaf affinity, with minimum contact angles (CAs) of 37.83 and 70.52° on hydrophilic and hydrophobic vegetable leaf surfaces, respectively. Moreover, the maximum liquid holding capacity (LHC) of EUG@CMC-PGMA-CS on both hydrophilic and hydrophobic vegetable leaf surfaces demonstrates a noteworthy 55.24% enhancement compared to the LHC of pure EUG. The in vitro release curve of EUG@CMC-PGMA-CS exhibited an initial burst followed by stable sustained release. It is with satisfaction that the nano delivery system demonstrated exceptional antibacterial properties against S. aureus and satisfactory insecticidal efficacy against Spodoptera litura. The development of this eugenol-loaded nano delivery system holds significant potential for enhanced antibacterial and insect repellents in agriculture, paving the way for the application of volatile bioactive substances.
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Affiliation(s)
- Jihao Zuo
- Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China of Ministry of Agriculture and Rural Affairs, Key Laboratory of Agricultural Green Fine Chemicals of Guangdong Higher Education Institution, Innovative Institute for Plant Health, School of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong 510225, PR China
| | - Ruopeng Lan
- Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China of Ministry of Agriculture and Rural Affairs, Key Laboratory of Agricultural Green Fine Chemicals of Guangdong Higher Education Institution, Innovative Institute for Plant Health, School of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong 510225, PR China
| | - Ningning Lv
- Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China of Ministry of Agriculture and Rural Affairs, Key Laboratory of Agricultural Green Fine Chemicals of Guangdong Higher Education Institution, Innovative Institute for Plant Health, School of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong 510225, PR China
| | - Yitong Lin
- Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China of Ministry of Agriculture and Rural Affairs, Key Laboratory of Agricultural Green Fine Chemicals of Guangdong Higher Education Institution, Innovative Institute for Plant Health, School of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong 510225, PR China
| | - Li Hao
- Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China of Ministry of Agriculture and Rural Affairs, Key Laboratory of Agricultural Green Fine Chemicals of Guangdong Higher Education Institution, Innovative Institute for Plant Health, School of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong 510225, PR China
| | - Xinhua Zhou
- Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China of Ministry of Agriculture and Rural Affairs, Key Laboratory of Agricultural Green Fine Chemicals of Guangdong Higher Education Institution, Innovative Institute for Plant Health, School of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong 510225, PR China
| | - Hongjun Zhou
- Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China of Ministry of Agriculture and Rural Affairs, Key Laboratory of Agricultural Green Fine Chemicals of Guangdong Higher Education Institution, Innovative Institute for Plant Health, School of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong 510225, PR China
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Cao J, Chen Z, Wang L, Yan N, Lin J, Hou L, Zhao Y, Huang C, Wen T, Li C, Rahman SU, Liu Z, Qiao J, Zhao J, Wang J, Shi Y, Qin W, Si T, Wang Y, Tang K. Graphene enhances artemisinin production in the traditional medicinal plant Artemisia annua via dynamic physiological processes and miRNA regulation. PLANT COMMUNICATIONS 2024; 5:100742. [PMID: 37919898 PMCID: PMC10943550 DOI: 10.1016/j.xplc.2023.100742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 10/09/2023] [Accepted: 10/30/2023] [Indexed: 11/04/2023]
Abstract
We investigated the effects of graphene on the model herb Artemisia annua, which is renowned for producing artemisinin, a widely used pharmacological compound. Seedling growth and biomass were promoted when A. annua was cultivated with low concentrations of graphene, an effect which was attributed to a 1.4-fold increase in nitrogen uptake, a 15%-22% increase in chlorophyll fluorescence, and greater abundance of carbon cycling-related bacteria. Exposure to 10 or 20 mg/L graphene resulted in a ∼60% increase in H2O2, and graphene could act as a catalyst accelerator, leading to a 9-fold increase in catalase (CAT) activity in vitro and thereby maintaining reactive oxygen species (ROS) homeostasis. Importantly, graphene exposure led to an 80% increase in the density of glandular secreting trichomes (GSTs), in which artemisinin is biosynthesized and stored. This contributed to a 5% increase in artemisinin content in mature leaves. Interestingly, expression of miR828 was reduced by both graphene and H2O2 treatments, resulting in induction of its target gene AaMYB17, a positive regulator of GST initiation. Subsequent molecular and genetic assays showed that graphene-induced H2O2 inhibits micro-RNA (miRNA) biogenesis through Dicers and regulates the miR828-AaMYB17 module, thus affecting GST density. Our results suggest that graphene may contribute to yield improvement in A. annua via dynamic physiological processes together with miRNA regulation, and it may thus represent a new cultivation strategy for increasing yield capacity through nanobiotechnology.
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Affiliation(s)
- Junfeng Cao
- Frontiers Science Center for Transformative Molecules, Joint International Research Laboratory of Metabolic and Developmental Sciences, Plant Biotechnology Research Center, Fudan-SJTU Nottingham Plant Biotechnology R&D Center, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Zhiwen Chen
- Engineering Research Center of Coal-based Ecological Carbon Sequestration Technology of the Ministry of Education, Key Laboratory of Graphene Forestry Application of National Forest and Grass Administration, Shanxi Datong University, Datong 037009, China; National Key Laboratory of Plant Molecular Genetics, Institute of Plant Physiology and Ecology/CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Luyao Wang
- Hainan Institute, Zhejiang University, Yongyou Industry Park, Yazhou Bay Sci-Tech City, Sanya 572000, China; College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Ning Yan
- Shandong Provincial Key Laboratory of Dryland Farming Technology, College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China
| | - Jialing Lin
- National Key Laboratory of Plant Molecular Genetics, Institute of Plant Physiology and Ecology/CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Lipan Hou
- National Key Laboratory of Plant Molecular Genetics, Institute of Plant Physiology and Ecology/CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Yongyan Zhao
- Hainan Institute, Zhejiang University, Yongyou Industry Park, Yazhou Bay Sci-Tech City, Sanya 572000, China; College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Chaochen Huang
- National Key Laboratory of Plant Molecular Genetics, Institute of Plant Physiology and Ecology/CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Tingting Wen
- National Key Laboratory of Plant Molecular Genetics, Institute of Plant Physiology and Ecology/CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Chenyi Li
- National Key Laboratory of Plant Molecular Genetics, Institute of Plant Physiology and Ecology/CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Saeed Ur Rahman
- Frontiers Science Center for Transformative Molecules, Joint International Research Laboratory of Metabolic and Developmental Sciences, Plant Biotechnology Research Center, Fudan-SJTU Nottingham Plant Biotechnology R&D Center, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Zehui Liu
- Engineering Research Center of Coal-based Ecological Carbon Sequestration Technology of the Ministry of Education, Key Laboratory of Graphene Forestry Application of National Forest and Grass Administration, Shanxi Datong University, Datong 037009, China
| | - Jun Qiao
- Engineering Research Center of Coal-based Ecological Carbon Sequestration Technology of the Ministry of Education, Key Laboratory of Graphene Forestry Application of National Forest and Grass Administration, Shanxi Datong University, Datong 037009, China
| | - Jianguo Zhao
- Engineering Research Center of Coal-based Ecological Carbon Sequestration Technology of the Ministry of Education, Key Laboratory of Graphene Forestry Application of National Forest and Grass Administration, Shanxi Datong University, Datong 037009, China
| | - Jie Wang
- Shandong Provincial Key Laboratory of Dryland Farming Technology, College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China
| | - Yannan Shi
- Institute of Millet Crops, Hebei Academy of Agriculture & Forestry Sciences/Hebei Branch of China National Sorghum Improvement Center, Shijiazhuang 050035, China
| | - Wei Qin
- Frontiers Science Center for Transformative Molecules, Joint International Research Laboratory of Metabolic and Developmental Sciences, Plant Biotechnology Research Center, Fudan-SJTU Nottingham Plant Biotechnology R&D Center, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Tong Si
- Shandong Provincial Key Laboratory of Dryland Farming Technology, College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China
| | - Yuliang Wang
- Frontiers Science Center for Transformative Molecules, Joint International Research Laboratory of Metabolic and Developmental Sciences, Plant Biotechnology Research Center, Fudan-SJTU Nottingham Plant Biotechnology R&D Center, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Kexuan Tang
- Frontiers Science Center for Transformative Molecules, Joint International Research Laboratory of Metabolic and Developmental Sciences, Plant Biotechnology Research Center, Fudan-SJTU Nottingham Plant Biotechnology R&D Center, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China.
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10
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Dalakouras A, Koidou V, Papadopoulou K. DsRNA-based pesticides: Considerations for efficiency and risk assessment. CHEMOSPHERE 2024; 352:141530. [PMID: 38401868 DOI: 10.1016/j.chemosphere.2024.141530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 02/05/2024] [Accepted: 02/21/2024] [Indexed: 02/26/2024]
Abstract
In view of the ongoing climate change and the ever-growing world population, novel agricultural solutions are required to ensure sustainable food supply. Microbials, natural substances, semiochemicals and double stranded RNAs (dsRNAs) are all considered potential low risk pesticides. DsRNAs function at the molecular level, targeting specific regions of specific genes of specific organisms, provided that they share a minimal sequence complementarity of approximately 20 nucleotides. Thus, dsRNAs may offer a great alternative to conventional chemicals in environmentally friendly pest control strategies. Any low-risk pesticide needs to be efficient and exhibit low toxicological potential and low environmental persistence. Having said that, in the current review, the mode of dsRNA action is explored and the parameters that need to be taken into consideration for the development of efficient dsRNA-based pesticides are highlighted. Moreover, since dsRNAs mode of action differs from those of synthetic pesticides, custom-made risk assessment schemes may be required and thus, critical issues related to the risk assessment of dsRNA pesticides are discussed here.
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Affiliation(s)
| | - Venetia Koidou
- ELGO-DIMITRA, Institute of Industrial and Forage Crops, Larissa, Greece; University of Thessaly, Department of Biochemistry and Biotechnology, Larissa, Greece
| | - Kalliope Papadopoulou
- University of Thessaly, Department of Biochemistry and Biotechnology, Larissa, Greece
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11
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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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12
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Ortolá B, Daròs JA. RNA Interference in Insects: From a Natural Mechanism of Gene Expression Regulation to a Biotechnological Crop Protection Promise. BIOLOGY 2024; 13:137. [PMID: 38534407 DOI: 10.3390/biology13030137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 02/14/2024] [Accepted: 02/19/2024] [Indexed: 03/28/2024]
Abstract
Insect pests rank among the major limiting factors in agricultural production worldwide. In addition to direct effect on crops, some phytophagous insects are efficient vectors for plant disease transmission. Large amounts of conventional insecticides are required to secure food production worldwide, with a high impact on the economy and environment, particularly when beneficial insects are also affected by chemicals that frequently lack the desired specificity. RNA interference (RNAi) is a natural mechanism gene expression regulation and protection against exogenous and endogenous genetic elements present in most eukaryotes, including insects. Molecules of double-stranded RNA (dsRNA) or highly structured RNA are the substrates of cellular enzymes to produce several types of small RNAs (sRNAs), which play a crucial role in targeting sequences for transcriptional or post-transcriptional gene silencing. The relatively simple rules that underlie RNAi regulation, mainly based in Watson-Crick complementarity, have facilitated biotechnological applications based on these cellular mechanisms. This includes the promise of using engineered dsRNA molecules, either endogenously produced in crop plants or exogenously synthesized and applied onto crops, as a new generation of highly specific, sustainable, and environmentally friendly insecticides. Fueled on this expectation, this article reviews current knowledge about the RNAi pathways in insects, and some other applied questions such as production and delivery of recombinant RNA, which are critical to establish RNAi as a reliable technology for insect control in crop plants.
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Affiliation(s)
- Beltrán Ortolá
- Instituto de Biología Molecular y Celular de Plantas, Consejo Superior de Investigaciones Científicas-Universitat Politècnica de València, 46022 Valencia, Spain
| | - José-Antonio Daròs
- Instituto de Biología Molecular y Celular de Plantas, Consejo Superior de Investigaciones Científicas-Universitat Politècnica de València, 46022 Valencia, Spain
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13
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Yang Z, Guo Z, Gong C, Xia J, Hu Y, Zhong J, Yang X, Xie W, Wang S, Wu Q, Ye W, Liu B, Zhou X, Turlings TCJ, Zhang Y. Two horizontally acquired bacterial genes steer the exceptionally efficient and flexible nitrogenous waste cycling in whiteflies. SCIENCE ADVANCES 2024; 10:eadi3105. [PMID: 38306427 PMCID: PMC10836729 DOI: 10.1126/sciadv.adi3105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 01/03/2024] [Indexed: 02/04/2024]
Abstract
Nitrogen is an essential element for all life on earth. Nitrogen metabolism, including excretion, is essential for growth, development, and survival of plants and animals alike. Several nitrogen metabolic processes have been described, but the underlying molecular mechanisms are unclear. Here, we reveal a unique process of nitrogen metabolism in the whitefly Bemisia tabaci, a global pest. We show that it has acquired two bacterial uricolytic enzyme genes, B. tabaci urea carboxylase (BtUCA) and B. tabaci allophanate hydrolase (BtAtzF), through horizontal gene transfer. These genes operate in conjunction to not only coordinate an efficient way of metabolizing nitrogenous waste but also control B. tabaci's exceptionally flexible nitrogen recycling capacity. Its efficient nitrogen processing explains how this important pest can feed on a vast spectrum of plants. This finding provides insight into how the hijacking of microbial genes has allowed whiteflies to develop a highly economic and stable nitrogen metabolism network and offers clues for pest management strategies.
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Affiliation(s)
- Zezhong Yang
- State Key Laboratory of Vegetable Biobreeding, Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- Institute of Plant Protection, Tianjin Academy of Agricultural Sciences, Tianjin 300381, China
| | - Zhaojiang Guo
- State Key Laboratory of Vegetable Biobreeding, Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Cheng Gong
- State Key Laboratory of Vegetable Biobreeding, Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Jixing Xia
- State Key Laboratory of Vegetable Biobreeding, Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yuan Hu
- State Key Laboratory of Vegetable Biobreeding, Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Jie Zhong
- State Key Laboratory of Vegetable Biobreeding, Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Xin Yang
- State Key Laboratory of Vegetable Biobreeding, Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Wen Xie
- State Key Laboratory of Vegetable Biobreeding, Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Shaoli Wang
- State Key Laboratory of Vegetable Biobreeding, Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Qingjun Wu
- State Key Laboratory of Vegetable Biobreeding, Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Wenfeng Ye
- Laboratory of Fundamental and Applied Research in Chemical Ecology, Institute of Biology, University of Neuchâtel, CH-2000 Neuchâtel, Switzerland
| | - Baiming Liu
- Institute of Plant Protection, Tianjin Academy of Agricultural Sciences, Tianjin 300381, China
| | - Xuguo Zhou
- Department of Entomology, University of Kentucky, Lexington, KY 40546-0091, USA
| | - Ted C J Turlings
- Laboratory of Fundamental and Applied Research in Chemical Ecology, Institute of Biology, University of Neuchâtel, CH-2000 Neuchâtel, Switzerland
| | - Youjun Zhang
- State Key Laboratory of Vegetable Biobreeding, Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
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14
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Niu J, Chen R, Wang JJ. RNA interference in insects: the link between antiviral defense and pest control. INSECT SCIENCE 2024; 31:2-12. [PMID: 37162315 DOI: 10.1111/1744-7917.13208] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 03/27/2023] [Accepted: 04/10/2023] [Indexed: 05/11/2023]
Abstract
RNA interference (RNAi) is a form of gene silencing triggered by double-stranded RNA (dsRNA) that operates in all eukaryotic cells. RNAi has been widely investigated in insects to determine the underlying molecular mechanism, to investigate its role in systemic antiviral defense, and to develop strategies for pest control. When insect cells are infected by viruses, viral dsRNA signatures trigger a local RNAi response to block viral replication and generate virus-derived DNA that confers systemic immunity. RNAi-based insect pest control involves the application of exogenous dsRNA targeting genes essential for insect development or survival, but the efficacy of this approach has limited potency in many pests through a combination of rapid dsRNA degradation, inefficient dsRNA uptake/processing, and ineffective RNAi machinery. This could be addressed by dsRNA screening and evaluation, focusing on dsRNA design and off-target management, as well as dsRNA production and delivery. This review summarizes recent progress to determine the role of RNAi in antiviral defense and as a pest control strategy in insects, addressing gaps between our fundamental understanding of the RNAi mechanism and the exploitation of RNAi-based pest control strategies.
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Affiliation(s)
- Jinzhi Niu
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
- Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), Southwest University, Chongqing, China
| | - Ruoyu Chen
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
- Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), Southwest University, Chongqing, China
| | - Jin-Jun Wang
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
- Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), Southwest University, Chongqing, China
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15
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Morin S, Atkinson PW, Walling LL. Whitefly-Plant Interactions: An Integrated Molecular Perspective. ANNUAL REVIEW OF ENTOMOLOGY 2024; 69:503-525. [PMID: 37816261 DOI: 10.1146/annurev-ento-120120-093940] [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: 10/12/2023]
Abstract
The rapid advances in available transcriptomic and genomic data and our understanding of the physiology and biochemistry of whitefly-plant interactions have allowed us to gain new and significant insights into the biology of whiteflies and their successful adaptation to host plants. In this review, we provide a comprehensive overview of the mechanisms that whiteflies have evolved to overcome the challenges of feeding on phloem sap. We also highlight the evolution and functions of gene families involved in host perception, evaluation, and manipulation; primary metabolism; and metabolite detoxification. We discuss the emerging themes in plant immunity to whiteflies, focusing on whitefly effectors and their sites of action in plant defense-signaling pathways. We conclude with a discussion of advances in the genetic manipulation of whiteflies and the potential that they hold for exploring the interactions between whiteflies and their host plants, as well as the development of novel strategies for the genetic control of whiteflies.
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Affiliation(s)
- Shai Morin
- Department of Entomology, Hebrew University of Jerusalem, Rehovot, Israel;
| | - Peter W Atkinson
- Department of Entomology, University of California, Riverside, California, USA;
| | - Linda L Walling
- Department of Botany and Plant Sciences, University of California, Riverside, California, USA;
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16
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Pang H, Wu Y, Chen Y, Chen C, Nie X, Li P, Huang G, Xu ZP, Han FY. Development of polysaccharide-coated layered double hydroxide nanocomposites for enhanced oral insulin delivery. Drug Deliv Transl Res 2024:10.1007/s13346-023-01504-7. [PMID: 38214820 DOI: 10.1007/s13346-023-01504-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/16/2023] [Indexed: 01/13/2024]
Abstract
Oral insulin (INS) is predicted to have the most therapeutic advantages in treating diabetes to repress hepatic glucose production through its potential to mimic the endogenous insulin pathway. Many oral insulin delivery systems have been investigated. Layered double hydroxide (LDH) as an inorganic material has been widely used in drug delivery thanks to its appealing features such as good biocompatibility, low toxicity, and excellent loading capability. However, when used in oral drug delivery, the effectiveness of LDH is limited due to the acidic degradation in the stomach. In this study, to overcome these challenges, chitosan (Chi) and alginate (Alg) dual-coated LDH nanocomposites with the loading of insulin (Alg-Chi-LDH@INS) were developed by the layered-by-layered method for oral insulin delivery with dynamic size of ~ 350.8 nm, negative charge of ~ - 13.0 mV, and dispersity index 0.228. The insulin release profile was evaluated by ultraviolet-visible spectroscopy. The drug release profiles evidenced that alginate and chitosan coating partially protect insulin release from a burst release in acidic conditions. The analysis using flow cytometry showed that chitosan coating significantly enhanced the uptake of LDH@INS by Caco-2 cells compared to unmodified LDH and free insulin. Further in the in vivo study in streptozocin-induced diabetic mice, a significant hypoglycemic effect was maintained following oral administration with great biocompatibility (~ 50% blood glucose level reduction at 4 h). This research has thus provided a potential nanocomposite system for oral delivery of insulin.
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Affiliation(s)
- Huiwen Pang
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Youzhi Wu
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Yang Chen
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Chen Chen
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Xuqiang Nie
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD, 4072, Australia
- College of Pharmacy, Zunyi Medical University, Zunyi, 563006, China
- Key Lab of the Basic Pharmacology of the Ministry of Education & Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, 563006, China
| | - Peng Li
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Guojun Huang
- Hainan Beautech Stem Cell Anti-Aging Hospital, Hainan, 571400, China
| | - Zhi Ping Xu
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD, 4072, Australia.
| | - Felicity Y Han
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD, 4072, Australia.
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17
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Pang H, Wu Y, Chen Y, Chen C, Nie X, Li P, Huang G, Xu ZP, Han FY. Development of polysaccharide-coated layered double hydroxide nanocomposites for enhanced oral insulin delivery. Drug Deliv Transl Res 2024. [DOI: https:/doi.org/10.1007/s13346-023-01504-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/16/2023] [Indexed: 02/14/2024]
Abstract
AbstractOral insulin (INS) is predicted to have the most therapeutic advantages in treating diabetes to repress hepatic glucose production through its potential to mimic the endogenous insulin pathway. Many oral insulin delivery systems have been investigated. Layered double hydroxide (LDH) as an inorganic material has been widely used in drug delivery thanks to its appealing features such as good biocompatibility, low toxicity, and excellent loading capability. However, when used in oral drug delivery, the effectiveness of LDH is limited due to the acidic degradation in the stomach. In this study, to overcome these challenges, chitosan (Chi) and alginate (Alg) dual-coated LDH nanocomposites with the loading of insulin (Alg-Chi-LDH@INS) were developed by the layered-by-layered method for oral insulin delivery with dynamic size of ~ 350.8 nm, negative charge of ~ − 13.0 mV, and dispersity index 0.228. The insulin release profile was evaluated by ultraviolet–visible spectroscopy. The drug release profiles evidenced that alginate and chitosan coating partially protect insulin release from a burst release in acidic conditions. The analysis using flow cytometry showed that chitosan coating significantly enhanced the uptake of LDH@INS by Caco-2 cells compared to unmodified LDH and free insulin. Further in the in vivo study in streptozocin-induced diabetic mice, a significant hypoglycemic effect was maintained following oral administration with great biocompatibility (~ 50% blood glucose level reduction at 4 h). This research has thus provided a potential nanocomposite system for oral delivery of insulin.
Graphical Abstract
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18
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Pal G, Ingole KD, Yavvari PS, Verma P, Kumari A, Chauhan C, Chaudhary D, Srivastava A, Bajaj A, Vemanna RS. Exogenous application of nanocarrier-mediated double-stranded RNA manipulates physiological traits and defence response against bacterial diseases. MOLECULAR PLANT PATHOLOGY 2024; 25:e13417. [PMID: 38279851 PMCID: PMC10799200 DOI: 10.1111/mpp.13417] [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: 08/01/2023] [Revised: 12/09/2023] [Accepted: 12/17/2023] [Indexed: 01/29/2024]
Abstract
Stability and delivery are major challenges associated with exogenous double-stranded RNA (dsRNA) application into plants. We report the encapsulation and delivery of dsRNA in cationic poly-aspartic acid-derived polymer (CPP6) into plant cells. CPP6 stabilizes the dsRNAs during long exposure at varied temperatures and pH, and protects against RNase A degradation. CPP6 helps dsRNA uptake through roots or foliar spray and facilitates systemic movement to induce endogenous gene silencing. The fluorescence of Arabidopsis GFP-overexpressing transgenic plants was significantly reduced after infiltration with gfp-dsRNA-CPP6 by silencing of the transgene compared to plants treated only with gfp-dsRNA. The plant endogenous genes flowering locus T (FT) and phytochrome interacting factor 4 (PIF4) were downregulated by a foliar spray of ft-dsRNA-CPP6 and pif4-dsRNA-CPP6 in Arabidopsis, with delayed flowering and enhanced biomass. The rice PDS gene targeted by pds-dsRNA-CPP6 through root uptake was effectively silenced and plants showed a dwarf and albino phenotype. The NaCl-induced OsbZIP23 was targeted through root uptake of bzip23-dsRNA-CPP6 and showed reduced transcripts and seedling growth compared to treatment with naked dsRNA. The negative regulators of plant defence SDIR1 and SWEET14 were targeted through foliar spray to provide durable resistance against bacterial leaf blight disease caused by Xanthomonas oryzae pv. oryzae (Xoo). Overall, the study demonstrates that transient silencing of plant endogenous genes using polymer-encapsulated dsRNA provides prolonged and durable resistance against Xoo, which could be a promising tool for crop protection and for sustaining productivity.
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Affiliation(s)
- Garima Pal
- Laboratory of Plant Functional GenomicsRegional Centre for Biotechnology, NCR Biotech Science ClusterFaridabadIndia
| | - Kishor D. Ingole
- Laboratory of Plant Functional GenomicsRegional Centre for Biotechnology, NCR Biotech Science ClusterFaridabadIndia
| | | | - Priyanka Verma
- Laboratory of Nanotechnology and Chemical BiologyRegional Centre for Biotechnology, NCR Biotech Science ClusterFaridabadIndia
| | - Ankit Kumari
- Plant Genetic Engineering LabCentre for Biotechnology, Maharshi Dayananda UniversityRohtakIndia
| | - Chetan Chauhan
- Laboratory of Plant Functional GenomicsRegional Centre for Biotechnology, NCR Biotech Science ClusterFaridabadIndia
| | - Darshna Chaudhary
- Plant Genetic Engineering LabCentre for Biotechnology, Maharshi Dayananda UniversityRohtakIndia
| | - Aasheesh Srivastava
- Department of ChemistryIndian Institute of Science Education and ResearchBhopalIndia
| | - Avinash Bajaj
- Laboratory of Nanotechnology and Chemical BiologyRegional Centre for Biotechnology, NCR Biotech Science ClusterFaridabadIndia
| | - Ramu S. Vemanna
- Laboratory of Plant Functional GenomicsRegional Centre for Biotechnology, NCR Biotech Science ClusterFaridabadIndia
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19
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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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20
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Wu H, Wan X, Niu J, Xu H, Zhang Y, Xue X, Li Y, Li Q, Lu T, Yu H, Jiang W. Enhancing lettuce yield via Cu/Fe-layered double hydroxide nanoparticles spraying. J Nanobiotechnology 2023; 21:417. [PMID: 37950234 PMCID: PMC10638715 DOI: 10.1186/s12951-023-02178-6] [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: 09/13/2023] [Accepted: 10/26/2023] [Indexed: 11/12/2023] Open
Abstract
Layered double hydroxides (LDHs) have been widely used in the field of plant engineering, such as DNA/RNA transformation and enhancing plant disease resistance. However, few studies have examined the direct effects of LDHs on plants and their potential utility as nanofertilizers. In this study, the retention capacity of Cu/Fe-layered double hydroxide nanoparticles (CuFe-LDHs) was assessed by comparative experiments on vegetables. The results showed that the retention of CuFe-LDHs in leafy vegetables was high, such as lettuce. Phenotypic analysis revealed that the fresh and dry weights of lettuce leaves were both increased by spraying 10-100 μg/mL CuFe-LDHs. Using the optimal concentration of 10 μg/mL, we conducted further experiments to elucidate the mechanism of CuFe-LDHs promoting lettuce growth. It was found that the application of CuFe-LDHs had a significant effect on growth and induced physiological, transcriptomic, and metabolomic changes, including an increase in the chlorophyll b content, net photosynthetic rate, and intercellular carbon dioxide concentration, as well as modifications in gene expression patterns and metabolite profiles. This work provides compelling evidence that CuFe-LDHs can efficiently adsorb on the surface of lettuce leaves through hydrogen bonding, promote lettuce growth, mitigate the toxicity of heavy metal ions compared to their raw materials at the same concentration and offer a molecular-scale insight into the response of leafy vegetables to CuFe-LDHs.
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Affiliation(s)
- Hongyang Wu
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Xiaoyang Wan
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Jiefei Niu
- Research Unit of Molecular Epidemiology, Helmholtz Zentrum München, 85764, Neuherberg, Germany
| | - Huimin Xu
- College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Yu Zhang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Xian Xue
- College of Agriculture, Henan University of Science and Technology, Luoyang, 471000, China
| | - Yang Li
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Qiang Li
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Tao Lu
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Hongjun Yu
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
| | - Weijie Jiang
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
- College of Horticulture, Xinjiang Agricultural University, Urumqi, 830052, China.
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21
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Canuto F, Duret S, Dubrana MP, Claverol S, Malembic-Maher S, Foissac X, Arricau-Bouvery N. A knockdown gene approach identifies an insect vector membrane protein with leucin-rich repeats as one of the receptors for the VmpA adhesin of flavescence dorée phytoplasma. Front Cell Infect Microbiol 2023; 13:1289100. [PMID: 38029232 PMCID: PMC10662966 DOI: 10.3389/fcimb.2023.1289100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 10/16/2023] [Indexed: 12/01/2023] Open
Abstract
Introduction The adhesion of flavescence dorée phytoplasma to the midgut epithelium cells of their insect vectors is partially mediated by the variable membrane protein A (VmpA), an adhesin which shows lectin properties. In order to identify the insect receptor for VmpA, we identified Euscelidius variegatus cell proteins interacting with recombinant VmpA-His6. Methods The E. variegatus proteins were identified by mass spectrometry analysis of VmpA-E. variegatus protein complexes formed upon in vitro interaction assays. To assess their impact in VmpA binding, we reduced the expression of the candidate genes on E. variegatus cells in culture by dsRNA-mediated RNAi. The effect of candidate gene knockdown on VmpA binding was measured by the capacity of E. variegatus cells to bind VmpA-coated fluorescent beads. Results and discussion There were 13 candidate proteins possessing potential N-glycosylation sites and predicted transmembrane domains selected. The decrease of expression of an unknown transmembrane protein with leucine-rich repeat domains (uk1_LRR) was correlated with the decreased adhesion of VmpA beads to E. variegatus cells. The uk1_LRR was more expressed in digestive tubes than salivary glands of E. variegatus. The protein uk1_LRR could be implicated in the binding with VmpA in the early stages of insect infection following phytoplasmas ingestion.
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Affiliation(s)
- Francesca Canuto
- Univ. Bordeaux, INRAE, Biologie du Fruit et Pathologie, UMR 1332, Villenave d’Ornon, France
| | - Sybille Duret
- Univ. Bordeaux, INRAE, Biologie du Fruit et Pathologie, UMR 1332, Villenave d’Ornon, France
| | - Marie-Pierre Dubrana
- Univ. Bordeaux, INRAE, Biologie du Fruit et Pathologie, UMR 1332, Villenave d’Ornon, France
| | | | - Sylvie Malembic-Maher
- Univ. Bordeaux, INRAE, Biologie du Fruit et Pathologie, UMR 1332, Villenave d’Ornon, France
| | - Xavier Foissac
- Univ. Bordeaux, INRAE, Biologie du Fruit et Pathologie, UMR 1332, Villenave d’Ornon, France
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22
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Kim H, Masuta C. VIGS as a strategy to reverse aphid wing induction by Y-satellite RNA of cucumber mosaic virus. FEBS Open Bio 2023; 13:2005-2019. [PMID: 37596957 PMCID: PMC10626274 DOI: 10.1002/2211-5463.13697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 08/02/2023] [Accepted: 08/17/2023] [Indexed: 08/21/2023] Open
Abstract
Y-satellite RNA (Y-sat) of cucumber mosaic virus upregulates the expression of the aphid ABCG4 gene, which promotes aphid wing formation. We used ABCG4 virus-induced gene silencing (VIGS) to prevent the wing-induction mechanism of Y-sat and thus inhibited aphid wing formation. Of the aphids on plants with VIGS of ABCG4, only about 30% had wings, and 60-70% of the winged aphids were small and likely impaired in flying ability. In addition, we showed that double-stranded RNAs (dsRNAs) and small RNAs were transferred from the plant to the aphid to adequately silence aphid genes. Supplying ABCG4 dsRNA by VIGS to aphids is thus a potential strategy to inhibit aphid wing formation.
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Affiliation(s)
- Hangil Kim
- Research Faculty of Agriculture, Hokkaido University, Sapporo, Japan
| | - Chikara Masuta
- Research Faculty of Agriculture, Hokkaido University, Sapporo, Japan
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23
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Yu C, Li J, Zhang Z, Zong M, Qin C, Mo Z, Sun D, Yang D, Zeng Q, Wang J, Ma K, Li J, Wan H, He S. Metal-Organic Framework-Based Insecticide and dsRNA Codelivery System for Insecticide Resistance Management. ACS APPLIED MATERIALS & INTERFACES 2023; 15:48495-48505. [PMID: 37787656 DOI: 10.1021/acsami.3c09074] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
Targeted silencing of resistance-associated genes by specific double-stranded RNA (dsRNA) is an attractive strategy for overcoming insecticide resistance in insect pests. However, silencing target genes of insect pests by feeding on dsRNA transported via plants remains challenging. Herein, a codelivery system of insecticide and dsRNA is designed by encapsulating imidacloprid and dsNlCYP6ER1 within zeolitic imidazolate framework-8 (ZIF-8) nanoparticles to improve the susceptibility of Nilaparvata lugens (Stål) to imidacloprid. With an average particle size of 195 nm and a positive surface charge, the derived imidacloprid/dsNlCYP6ER1@ZIF-8 demonstrates good monodispersity. Survival curve results showed that the survival rates of N. lugens treated with imidacloprid and imidacloprid@ZIF-8 were 82 and 62%, respectively, whereas, in the imidacloprid/dsNlCYP6ER1@ZIF-8 treatment group, the survival rate of N. lugens is only 8%. Pot experiments demonstrate that the survival rate in the imidacloprid/dsNlCYP6ER1@ZIF-8 treatment group was much lower than that in the imidacloprid treatment group, decreasing from 54 to 24%. The identification of NlCYP6ER1 expression and the fluorescence tracking of ZIF-8 demonstrate that ZIF-8 can codeliver dsRNA and insecticide to insects via rice. Safety evaluation results showed that the dsNlCYP6ER1@ZIF-8 nanoparticle had desirable biocompatibility and biosafety to silkworm. This dsRNA and insecticide codelivery system may be extended to additional insecticides with potential resistance problems in the future, greatly enhancing the development of pest resistance management.
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Affiliation(s)
- Chang Yu
- The Center of Crop Nanobiotechnology, College of Plant Science and Technology, Huazhong Agricultural University, No. 1 Shizishan Street, Wuhan 430074, China
| | - Jiaqing Li
- The Center of Crop Nanobiotechnology, College of Plant Science and Technology, Huazhong Agricultural University, No. 1 Shizishan Street, Wuhan 430074, China
| | - Zhaoyang Zhang
- The Center of Crop Nanobiotechnology, College of Plant Science and Technology, Huazhong Agricultural University, No. 1 Shizishan Street, Wuhan 430074, China
| | - Mao Zong
- The Center of Crop Nanobiotechnology, College of Plant Science and Technology, Huazhong Agricultural University, No. 1 Shizishan Street, Wuhan 430074, China
| | - Chuwei Qin
- The Center of Crop Nanobiotechnology, College of Plant Science and Technology, Huazhong Agricultural University, No. 1 Shizishan Street, Wuhan 430074, China
| | - Ziyao Mo
- The Center of Crop Nanobiotechnology, College of Plant Science and Technology, Huazhong Agricultural University, No. 1 Shizishan Street, Wuhan 430074, China
| | - Dan Sun
- The Center of Crop Nanobiotechnology, College of Plant Science and Technology, Huazhong Agricultural University, No. 1 Shizishan Street, Wuhan 430074, China
| | - Disi Yang
- The Center of Crop Nanobiotechnology, College of Plant Science and Technology, Huazhong Agricultural University, No. 1 Shizishan Street, Wuhan 430074, China
| | - Qinghong Zeng
- The Center of Crop Nanobiotechnology, College of Plant Science and Technology, Huazhong Agricultural University, No. 1 Shizishan Street, Wuhan 430074, China
| | - Jiayin Wang
- The Center of Crop Nanobiotechnology, College of Plant Science and Technology, Huazhong Agricultural University, No. 1 Shizishan Street, Wuhan 430074, China
| | - Kangsheng Ma
- The Center of Crop Nanobiotechnology, College of Plant Science and Technology, Huazhong Agricultural University, No. 1 Shizishan Street, Wuhan 430074, China
| | - Jianhong Li
- The Center of Crop Nanobiotechnology, College of Plant Science and Technology, Huazhong Agricultural University, No. 1 Shizishan Street, Wuhan 430074, China
| | - Hu Wan
- The Center of Crop Nanobiotechnology, College of Plant Science and Technology, Huazhong Agricultural University, No. 1 Shizishan Street, Wuhan 430074, China
| | - Shun He
- The Center of Crop Nanobiotechnology, College of Plant Science and Technology, Huazhong Agricultural University, No. 1 Shizishan Street, Wuhan 430074, China
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24
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Cheng AP, Kwon S, Adeshara T, Göhre V, Feldbrügge M, Weiberg A. Extracellular RNAs released by plant-associated fungi: from fundamental mechanisms to biotechnological applications. Appl Microbiol Biotechnol 2023; 107:5935-5945. [PMID: 37572124 PMCID: PMC10485130 DOI: 10.1007/s00253-023-12718-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/15/2023] [Accepted: 07/19/2023] [Indexed: 08/14/2023]
Abstract
Extracellular RNAs are an emerging research topic in fungal-plant interactions. Fungal plant pathogens and symbionts release small RNAs that enter host cells to manipulate plant physiology and immunity. This communication via extracellular RNAs between fungi and plants is bidirectional. On the one hand, plants release RNAs encapsulated inside extracellular vesicles as a defense response as well as for intercellular and inter-organismal communication. On the other hand, recent reports suggest that also full-length mRNAs are transported within fungal EVs into plants, and these fungal mRNAs might get translated inside host cells. In this review article, we summarize the current views and fundamental concepts of extracellular RNAs released by plant-associated fungi, and we discuss new strategies to apply extracellular RNAs in crop protection against fungal pathogens. KEY POINTS: • Extracellular RNAs are an emerging topic in plant-fungal communication. • Fungi utilize RNAs to manipulate host plants for colonization. • Extracellular RNAs can be engineered to protect plants against fungal pathogens.
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Affiliation(s)
- An-Po Cheng
- Faculty of Biology, Ludwig-Maximilians Universität München (LMU), 82152, Martinsried, Germany
| | - Seomun Kwon
- Institute for Microbiology, Heinrich Heine Universität Düsseldorf, 40225, Düsseldorf, Germany
| | - Trusha Adeshara
- Institute for Microbiology, Heinrich Heine Universität Düsseldorf, 40225, Düsseldorf, Germany
| | - Vera Göhre
- Institute for Microbiology, Heinrich Heine Universität Düsseldorf, 40225, Düsseldorf, Germany
| | - Michael Feldbrügge
- Institute for Microbiology, Heinrich Heine Universität Düsseldorf, 40225, Düsseldorf, Germany
| | - Arne Weiberg
- Faculty of Biology, Ludwig-Maximilians Universität München (LMU), 82152, Martinsried, Germany.
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25
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Wu Z, Luo D, Zhang S, Zhang C, Zhang Y, Chen M, Li X. A systematic review of southern rice black-streaked dwarf virus in the age of omics. PEST MANAGEMENT SCIENCE 2023; 79:3397-3407. [PMID: 37291065 DOI: 10.1002/ps.7605] [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: 01/08/2023] [Revised: 05/22/2023] [Accepted: 06/09/2023] [Indexed: 06/10/2023]
Abstract
Southern rice black-streaked dwarf virus (SRBSDV) is one of the most damaging rice viruses. The virus decreases rice quality and yield, and poses a serious threat to food security. From this perspective, this review performed a survey of published studies in recent years to understand the current status of SRBSDV and white-backed planthopper (WBPH, Sogatella furcifera) transmission processes in rice. Recent studies have shown that the interactions between viral virulence proteins and rice susceptibility factors shape the transmission of SRBSDV. Moreover, the transmission of SRBSDV is influenced by the interactions between viral virulence proteins and S. furcifera susceptibility factors. This review focused on the molecular mechanisms of key genes or proteins associated with SRBSDV infection in rice via the S. furcifera vector, and the host defense response mechanisms against viral infection. A sustainable control strategy using RNAi was summarized to address this pest. Finally, we also present a model for screening anti-SRBSDV inhibitors using viral proteins as targets. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Zilin Wu
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Dan Luo
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Shanqi Zhang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Chun Zhang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Yong Zhang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Moxian Chen
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Xiangyang Li
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
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26
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Rakesh V, Kalia VK, Ghosh A. Diversity of transgenes in sustainable management of insect pests. Transgenic Res 2023; 32:351-381. [PMID: 37573273 DOI: 10.1007/s11248-023-00362-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 07/28/2023] [Indexed: 08/14/2023]
Abstract
Insecticidal transgenes, when incorporated and expressed in plants, confer resistance against insects by producing several products having insecticidal properties. Protease inhibitors, lectins, amylase inhibitors, and chitinase genes are associated with the natural defenses developed by plants to counter insect attacks. Several toxin genes are also derived from spiders and scorpions for protection against insects. Bacillus thuringiensis Berliner is a microbial source of insecticidal toxins. Several methods have facilitated the large-scale production of transgenic plants. Bt-derived cry, cyt, vip, and sip genes, plant-derived genes such as lectins, protease inhibitors, and alpha-amylase inhibitors, insect cell wall-degrading enzymes like chitinase and some proteins like arcelins, plant defensins, and ribosome-inactivating proteins have been successfully utilized to impart resistance to insects. Besides, transgenic plants expressing double-stranded RNA have been developed with enhanced resistance. However, the long-term effects of transgenes on insect resistance, the environment, and human health must be thoroughly investigated before they are made available for commercial planting. In this chapter, the present status, prospects, and future scope of transgenes for insect pest management have been summarized and discussed.
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Affiliation(s)
- V Rakesh
- Division of Entomology, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India
- Insect Vector Laboratory, Advanced Centre for Plant Virology, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India
| | - Vinay K Kalia
- Division of Entomology, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India
| | - Amalendu Ghosh
- Insect Vector Laboratory, Advanced Centre for Plant Virology, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India.
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27
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McRae AG, Taneja J, Yee K, Shi X, Haridas S, LaButti K, Singan V, Grigoriev IV, Wildermuth MC. Spray-induced gene silencing to identify powdery mildew gene targets and processes for powdery mildew control. MOLECULAR PLANT PATHOLOGY 2023; 24:1168-1183. [PMID: 37340595 PMCID: PMC10423327 DOI: 10.1111/mpp.13361] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 05/09/2023] [Accepted: 05/11/2023] [Indexed: 06/22/2023]
Abstract
Spray-induced gene silencing (SIGS) is an emerging tool for crop pest protection. It utilizes exogenously applied double-stranded RNA to specifically reduce pest target gene expression using endogenous RNA interference machinery. In this study, SIGS methods were developed and optimized for powdery mildew fungi, which are widespread obligate biotrophic fungi that infect agricultural crops, using the known azole-fungicide target cytochrome P450 51 (CYP51) in the Golovinomyces orontii-Arabidopsis thaliana pathosystem. Additional screening resulted in the identification of conserved gene targets and processes important to powdery mildew proliferation: apoptosis-antagonizing transcription factor in essential cellular metabolism and stress response; lipid catabolism genes lipase a, lipase 1, and acetyl-CoA oxidase in energy production; and genes involved in manipulation of the plant host via abscisic acid metabolism (9-cis-epoxycarotenoid dioxygenase, xanthoxin dehydrogenase, and a putative abscisic acid G-protein coupled receptor) and secretion of the effector protein, effector candidate 2. Powdery mildew is the dominant disease impacting grapes and extensive powdery mildew resistance to applied fungicides has been reported. We therefore developed SIGS for the Erysiphe necator-Vitis vinifera system and tested six successful targets identified using the G. orontii-A. thaliana system. For all targets tested, a similar reduction in powdery mildew disease was observed between systems. This indicates screening of broadly conserved targets in the G. orontii-A. thaliana pathosystem identifies targets and processes for the successful control of other powdery mildew fungi. The efficacy of SIGS on powdery mildew fungi makes SIGS an exciting prospect for commercial powdery mildew control.
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Affiliation(s)
- Amanda G. McRae
- Department of Plant and Microbial BiologyUniversity of CaliforniaBerkeleyCaliforniaUSA
| | - Jyoti Taneja
- Department of Plant and Microbial BiologyUniversity of CaliforniaBerkeleyCaliforniaUSA
| | - Kathleen Yee
- Department of Plant and Microbial BiologyUniversity of CaliforniaBerkeleyCaliforniaUSA
| | - Xinyi Shi
- Department of Plant and Microbial BiologyUniversity of CaliforniaBerkeleyCaliforniaUSA
| | - Sajeet Haridas
- US Department of Energy Joint Genome InstituteLawrence Berkeley National LaboratoryBerkeleyCaliforniaUSA
| | - Kurt LaButti
- US Department of Energy Joint Genome InstituteLawrence Berkeley National LaboratoryBerkeleyCaliforniaUSA
| | - Vasanth Singan
- US Department of Energy Joint Genome InstituteLawrence Berkeley National LaboratoryBerkeleyCaliforniaUSA
| | - Igor V. Grigoriev
- Department of Plant and Microbial BiologyUniversity of CaliforniaBerkeleyCaliforniaUSA
- US Department of Energy Joint Genome InstituteLawrence Berkeley National LaboratoryBerkeleyCaliforniaUSA
| | - Mary C. Wildermuth
- Department of Plant and Microbial BiologyUniversity of CaliforniaBerkeleyCaliforniaUSA
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28
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Mann CWG, Sawyer A, Gardiner DM, Mitter N, Carroll BJ, Eamens AL. RNA-Based Control of Fungal Pathogens in Plants. Int J Mol Sci 2023; 24:12391. [PMID: 37569766 PMCID: PMC10418863 DOI: 10.3390/ijms241512391] [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: 06/28/2023] [Revised: 08/01/2023] [Accepted: 08/01/2023] [Indexed: 08/13/2023] Open
Abstract
Our duty to conserve global natural ecosystems is increasingly in conflict with our need to feed an expanding population. The use of conventional pesticides not only damages the environment and vulnerable biodiversity but can also still fail to prevent crop losses of 20-40% due to pests and pathogens. There is a growing call for more ecologically sustainable pathogen control measures. RNA-based biopesticides offer an eco-friendly alternative to the use of conventional fungicides for crop protection. The genetic modification (GM) of crops remains controversial in many countries, though expression of transgenes inducing pathogen-specific RNA interference (RNAi) has been proven effective against many agronomically important fungal pathogens. The topical application of pathogen-specific RNAi-inducing sprays is a more responsive, GM-free approach to conventional RNAi transgene-based crop protection. The specific targeting of essential pathogen genes, the development of RNAi-nanoparticle carrier spray formulations, and the possible structural modifications to the RNA molecules themselves are crucial to the success of this novel technology. Here, we outline the current understanding of gene silencing pathways in plants and fungi and summarize the pioneering and recent work exploring RNA-based biopesticides for crop protection against fungal pathogens, with a focus on spray-induced gene silencing (SIGS). Further, we discuss factors that could affect the success of RNA-based control strategies, including RNA uptake, stability, amplification, and movement within and between the plant host and pathogen, as well as the cost and design of RNA pesticides.
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Affiliation(s)
- Christopher W. G. Mann
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia; (C.W.G.M.); (A.S.); (B.J.C.)
| | - Anne Sawyer
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia; (C.W.G.M.); (A.S.); (B.J.C.)
- Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St. Lucia, QLD 4072, Australia; (D.M.G.); (N.M.)
| | - Donald M. Gardiner
- Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St. Lucia, QLD 4072, Australia; (D.M.G.); (N.M.)
| | - Neena Mitter
- Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St. Lucia, QLD 4072, Australia; (D.M.G.); (N.M.)
| | - Bernard J. Carroll
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia; (C.W.G.M.); (A.S.); (B.J.C.)
| | - Andrew L. Eamens
- School of Health, University of the Sunshine Coast, Maroochydore, QLD 4558, Australia
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29
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Shelby EA, McKinney EC, Cunningham CB, Simmons AM, Moore AJ, Moore PJ. The role of Dnmt1 in oocyte development. JOURNAL OF INSECT PHYSIOLOGY 2023; 147:104507. [PMID: 37011857 DOI: 10.1016/j.jinsphys.2023.104507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 03/28/2023] [Accepted: 03/31/2023] [Indexed: 06/02/2023]
Abstract
The whitefly Bemisia tabaci is a globally important crop pest that is difficult to manage through current commercially available methods. While RNA interference (RNAi) is a promising strategy for managing this pest, effective target genes remain unclear. We suggest DNA methyltransferase 1 (Dnmt1) as a potential target gene due to its effect on fecundity in females in other taxa of insects. We investigated the role of Dnmt1 in B. tabaci using RNAi and immunohistochemistry to confirm its potential conserved function in insect reproduction, which will define its usefulness as a target gene. Using RNAi to downregulate Dnmt1 in female B. tabaci, we show that Dnmt1 indeed has a conserved role in reproduction, as knockdown interfered with oocyte development. Females in which Dnmt1 was knocked down had greatly reduced fecundity and fertility; this supports Dnmt1 as a suitable target gene for RNAi-mediated pest management of B. tabaci.
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Affiliation(s)
- Emily A Shelby
- Department of Entomology, University of Georgia, 120 Cedar Street, Athens, GA 30602, United States
| | - Elizabeth C McKinney
- Department of Entomology, University of Georgia, 120 Cedar Street, Athens, GA 30602, United States
| | - Christopher B Cunningham
- Department of Entomology, University of Georgia, 120 Cedar Street, Athens, GA 30602, United States
| | - Alvin M Simmons
- U.S. Department of Agriculture, Agricultural Research Service, U.S. Vegetable Laboratory, Charleston, SC 29414, United States
| | - Allen J Moore
- Department of Entomology, University of Georgia, 120 Cedar Street, Athens, GA 30602, United States
| | - Patricia J Moore
- Department of Entomology, University of Georgia, 120 Cedar Street, Athens, GA 30602, United States.
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30
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Padilla-Roji I, Ruiz-Jiménez L, Bakhat N, Vielba-Fernández A, Pérez-García A, Fernández-Ortuño D. RNAi Technology: A New Path for the Research and Management of Obligate Biotrophic Phytopathogenic Fungi. Int J Mol Sci 2023; 24:ijms24109082. [PMID: 37240427 DOI: 10.3390/ijms24109082] [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: 04/05/2023] [Revised: 05/05/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023] Open
Abstract
Powdery mildew and rust fungi are major agricultural problems affecting many economically important crops and causing significant yield losses. These fungi are obligate biotrophic parasites that are completely dependent on their hosts for growth and reproduction. Biotrophy in these fungi is determined by the presence of haustoria, specialized fungal cells that are responsible for nutrient uptake and molecular dialogue with the host, a fact that undoubtedly complicates their study under laboratory conditions, especially in terms of genetic manipulation. RNA interference (RNAi) is the biological process of suppressing the expression of a target gene through double-stranded RNA that induces mRNA degradation. RNAi technology has revolutionized the study of these obligate biotrophic fungi by enabling the analysis of gene function in these fungal. More importantly, RNAi technology has opened new perspectives for the management of powdery mildew and rust diseases, first through the stable expression of RNAi constructs in transgenic plants and, more recently, through the non-transgenic approach called spray-induced gene silencing (SIGS). In this review, the impact of RNAi technology on the research and management of powdery mildew and rust fungi will be addressed.
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Affiliation(s)
- Isabel Padilla-Roji
- Departamento de Microbiología, Facultad de Ciencias, Universidad de Málaga, 29071 Málaga, Spain
- Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora", Universidad de Málaga, Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), 29071 Málaga, Spain
| | - Laura Ruiz-Jiménez
- Departamento de Microbiología, Facultad de Ciencias, Universidad de Málaga, 29071 Málaga, Spain
- Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora", Universidad de Málaga, Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), 29071 Málaga, Spain
| | - Nisrine Bakhat
- Departamento de Microbiología, Facultad de Ciencias, Universidad de Málaga, 29071 Málaga, Spain
- Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora", Universidad de Málaga, Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), 29071 Málaga, Spain
| | - Alejandra Vielba-Fernández
- Departamento de Microbiología, Facultad de Ciencias, Universidad de Málaga, 29071 Málaga, Spain
- Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora", Universidad de Málaga, Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), 29071 Málaga, Spain
| | - Alejandro Pérez-García
- Departamento de Microbiología, Facultad de Ciencias, Universidad de Málaga, 29071 Málaga, Spain
- Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora", Universidad de Málaga, Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), 29071 Málaga, Spain
| | - Dolores Fernández-Ortuño
- Departamento de Microbiología, Facultad de Ciencias, Universidad de Málaga, 29071 Málaga, Spain
- Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora", Universidad de Málaga, Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), 29071 Málaga, Spain
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Liu L, Wang DH, Zhao CC, Yan FM, Lei CL, Su LJ, Zhang YC, Huang QY, Tang QB. Transcriptomics Reveals the Killing Mechanism by Which Entomopathogenic Fungi Manipulate the RNA Expression Profiles of Termites and Provides Inspiration for Green Pest Management. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:7152-7162. [PMID: 37104842 DOI: 10.1021/acs.jafc.3c00743] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
As chemical pesticides have caused serious environmental pollution, fungus-based biological control has become a developing alternative to chemical control. Here, we aimed to determine the molecular mechanism underlying how Metarhizium anisopliae facilitated invasive infection. We found that the fungus increased its virulence by downregulating glutathione S-transferase (GST) and superoxide dismutase (SOD) throughout termite bodies. Among 13 fungus-induced microRNAs throughout termite bodies, miR-7885-5p and miR-252b upregulation significantly downregulated several mRNAs in response to toxic substances to increase the fungal virulence [e.g., phosphoenolpyruvate carboxykinase (GTP) and heat shock protein homologue SSE1]. In addition, nanodelivered small interfering RNA of GST and SOD and miR-7885-5p and miR-252b mimics increased the virulence of the fungus. These findings provide new insights into the killing mechanism of entomopathogens and their utilization of the host miRNA machinery to reduce host defenses, laying the groundwork to enhance virulence of biocontrol agents for green pest management.
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Affiliation(s)
- Long Liu
- Henan International Laboratory for Green Pest Control; Henan Engineering Laboratory of Pest Biological Control; College of Plant Protection, Henan Agricultural University, Zhengzhou 450002, China
| | - Dong-Huai Wang
- Henan International Laboratory for Green Pest Control; Henan Engineering Laboratory of Pest Biological Control; College of Plant Protection, Henan Agricultural University, Zhengzhou 450002, China
| | - Chen-Chen Zhao
- Henan International Laboratory for Green Pest Control; Henan Engineering Laboratory of Pest Biological Control; College of Plant Protection, Henan Agricultural University, Zhengzhou 450002, China
| | - Feng-Ming Yan
- Henan International Laboratory for Green Pest Control; Henan Engineering Laboratory of Pest Biological Control; College of Plant Protection, Henan Agricultural University, Zhengzhou 450002, China
| | - Chao-Liang Lei
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Li-Juan Su
- Henan International Laboratory for Green Pest Control; Henan Engineering Laboratory of Pest Biological Control; College of Plant Protection, Henan Agricultural University, Zhengzhou 450002, China
| | - Yuan-Chen Zhang
- Taihang Mountain Forest Pests Observation and Research Station of Henan Province, Anyang 456582, China
| | - Qiu-Ying Huang
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Qing-Bo Tang
- Henan International Laboratory for Green Pest Control; Henan Engineering Laboratory of Pest Biological Control; College of Plant Protection, Henan Agricultural University, Zhengzhou 450002, China
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Li JQ, Zhu R, Yao WC, Yu HP, Huang JR, Wang Z, Sun XY, Yuan DH, Sun YY, Emam SS, Dewer Y, Zhu XY, Zhang YN. Chemosensory Protein 2 of Male Athetis lepigone Is Involved in the Perception of Sex Pheromones and Maize Volatiles. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:6277-6287. [PMID: 37068196 DOI: 10.1021/acs.jafc.3c00565] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
In moths, the interactions between chemosensory proteins (CSPs) and sex pheromones have yet to be comprehensively investigated. Here, we examined the function of AlepCSP2 in male Athetis lepigone based on protein expression, molecular docking, site-directed mutagenesis, fluorescence competitive binding analyses, and RNA interference (RNAi) experiments. We found that AlepCSP2 showed strong binding affinity for two sex pheromones and five maize volatiles and that binding was optimal under neutral conditions. Furthermore, we identified six amino acids as being key residues involved in the interaction between AlepCSP2 and multiple ligands. Further RNAi showed that siCSP2 males displayed consistently lower electroantennography responses to two sex pheromones and three maize volatiles at different dosages tested, and the mating rate also decreased significantly by 37.50%. These findings will contribute to characterizing the binding mechanisms of moth CSPs to sex pheromones and host volatiles and also identify unique targets for developing novel pest behavior disruptors.
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Affiliation(s)
- Jian-Qiao Li
- College of Life Sciences, Huaibei Normal University, Huaibei 235000, China
| | - Rui Zhu
- College of Life Sciences, Huaibei Normal University, Huaibei 235000, China
| | - Wei-Chen Yao
- College of Life Sciences, Huaibei Normal University, Huaibei 235000, China
| | - Hui-Ping Yu
- College of Life Sciences, Huaibei Normal University, Huaibei 235000, China
| | - Jian-Rong Huang
- Henan Key Laboratory of Crop Pest Control, MOA's Regional Key Lab of Crop IPM in Southern Part of Northern China, Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
| | - Zhen Wang
- College of Life Sciences, Huaibei Normal University, Huaibei 235000, China
| | - Xin-Yue Sun
- College of Life Sciences, Huaibei Normal University, Huaibei 235000, China
| | - Di-Hua Yuan
- College of Life Sciences, Huaibei Normal University, Huaibei 235000, China
| | - Yuan-Yuan Sun
- College of Life Sciences, Huaibei Normal University, Huaibei 235000, China
| | - Sekina S Emam
- Phytotoxicity Research Department, Central Agricultural Pesticide Laboratory, Agricultural Research Center, 7 Nadi El-Seid Street, Dokki, Giza 12618, Egypt
| | - Youssef Dewer
- Phytotoxicity Research Department, Central Agricultural Pesticide Laboratory, Agricultural Research Center, 7 Nadi El-Seid Street, Dokki, Giza 12618, Egypt
| | - Xiu-Yun Zhu
- College of Life Sciences, Huaibei Normal University, Huaibei 235000, China
| | - Ya-Nan Zhang
- College of Life Sciences, Huaibei Normal University, Huaibei 235000, China
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Ye Z, Lu R, Li C, Yang D, Zeng Z, Lin W, Cheng J, Yang Z, Wang L, Gao Y, Huang S, Zhang X, Li S. Haplotype-resolved and chromosome-level genome assembly of Colorado potato beetle. J Genet Genomics 2023:S1673-8527(23)00092-9. [PMID: 37080287 DOI: 10.1016/j.jgg.2023.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 03/16/2023] [Accepted: 04/06/2023] [Indexed: 04/22/2023]
Affiliation(s)
- Ziqi Ye
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Synthetic Biology, Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Chinese Academy of Agricultural Sciences, Shenzhen, Guangdong 518000, China
| | - Ruirui Lu
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Synthetic Biology, Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Chinese Academy of Agricultural Sciences, Shenzhen, Guangdong 518000, China
| | - Chao Li
- Key Laboratory of Prevention and Control of Invasive Alien Species in Agriculture & Forestry of the North-western Desert Oasis, Ministry of Agriculture and Rural Affairs, College of Agronomy, Xinjiang Agricultural University, Urumqi, Xinjiang Uygur Autonomous Region 830052, China
| | - Doudou Yang
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Synthetic Biology, Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Chinese Academy of Agricultural Sciences, Shenzhen, Guangdong 518000, China
| | - Zhuozhen Zeng
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Synthetic Biology, Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Chinese Academy of Agricultural Sciences, Shenzhen, Guangdong 518000, China; School of Life Sciences, Henan University, Kaifeng 475004, China; Shenzhen Research Institute of Henan University, Shenzhen, Guangdong 518000, China
| | - Weichao Lin
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Synthetic Biology, Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Chinese Academy of Agricultural Sciences, Shenzhen, Guangdong 518000, China
| | - Jie Cheng
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Synthetic Biology, Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Chinese Academy of Agricultural Sciences, Shenzhen, Guangdong 518000, China
| | - Zhongmin Yang
- College of Horticulture, Xinjiang Agricultural University, Urumuqi, Xinjiang Uygur Autonomous Region 830052, China
| | - Li Wang
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Synthetic Biology, Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Chinese Academy of Agricultural Sciences, Shenzhen, Guangdong 518000, China
| | - Yulin Gao
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Sanwen Huang
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Synthetic Biology, Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Chinese Academy of Agricultural Sciences, Shenzhen, Guangdong 518000, China; Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan 571101, China
| | - Xingtan Zhang
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Synthetic Biology, Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Chinese Academy of Agricultural Sciences, Shenzhen, Guangdong 518000, China.
| | - Suhua Li
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Synthetic Biology, Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Chinese Academy of Agricultural Sciences, Shenzhen, Guangdong 518000, China.
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Maurastoni M, Han J, Whitfield AE, Rotenberg D. A call to arms: novel strategies for thrips and tospovirus control. CURRENT OPINION IN INSECT SCIENCE 2023; 57:101033. [PMID: 37030512 DOI: 10.1016/j.cois.2023.101033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Accepted: 04/04/2023] [Indexed: 05/08/2023]
Abstract
Thrips and the tospoviruses they transmit are some of the most significant threats to food and ornamental crop production globally. Control of the insect and virus is challenging and new strategies are needed. Characterizing the thrips-virus interactome provides new targets for disrupting the transmission cycle. Viral and insect determinants of vector competence are being defined, including the viral attachment protein and its structure as well as thrips proteins that interact with and respond to tospovirus infection. Additional thrips control strategies such as RNA interference need further refinement and field-applicable delivery systems, but they show promise for the knockdown of essential genes for thrips survival and virus transmission. The identification of a toxin that acts to deter thrips oviposition on cotton also presents new opportunities for control of this important pest.
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Affiliation(s)
- Marlonni Maurastoni
- Department of Entomology and Plant Pathology, North Carolina State University, Raleigh, NC 27695, USA
| | - Jinlong Han
- Department of Agricultural Biology, Colorado State University, Fort Collins, CO 80523, USA
| | - Anna E Whitfield
- Department of Entomology and Plant Pathology, North Carolina State University, Raleigh, NC 27695, USA
| | - Dorith Rotenberg
- Department of Entomology and Plant Pathology, North Carolina State University, Raleigh, NC 27695, USA.
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Feng H, Chen W, Hussain S, Shakir S, Tzin V, Adegbayi F, Ugine T, Fei Z, Jander G. Horizontally transferred genes as RNA interference targets for aphid and whitefly control. PLANT BIOTECHNOLOGY JOURNAL 2023; 21:754-768. [PMID: 36577653 PMCID: PMC10037149 DOI: 10.1111/pbi.13992] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 12/14/2022] [Accepted: 12/22/2022] [Indexed: 06/01/2023]
Abstract
RNA interference (RNAi)-based technologies are starting to be commercialized as a new approach for agricultural pest control. Horizontally transferred genes (HTGs), which have been transferred into insect genomes from viruses, bacteria, fungi or plants, are attractive targets for RNAi-mediated pest control. HTGs are often unique to a specific insect family or even genus, making it unlikely that RNAi constructs targeting such genes will have negative effects on ladybugs, lacewings and other beneficial predatory insect species. In this study, we sequenced the genome of a red, tobacco-adapted isolate of Myzus persicae (green peach aphid) and bioinformatically identified 30 HTGs. We then used plant-mediated virus-induced gene silencing (VIGS) to show that several HTGs of bacterial and plant origin are important for aphid growth and/or survival. Silencing the expression of fungal-origin HTGs did not affect aphid survivorship but decreased aphid reproduction. Importantly, although there was uptake of plant-expressed RNA by Coccinella septempunctata (seven-spotted ladybugs) via the aphids that they consumed, we did not observe negative effects on ladybugs from aphid-targeted VIGS constructs. To demonstrate that this approach is more broadly applicable, we also targeted five Bemisia tabaci (whitefly) HTGs using VIGS and demonstrated that knockdown of some of these genes affected whitefly survival. As functional HTGs have been identified in the genomes of numerous pest species, we propose that these HTGs should be explored further as efficient and safe targets for control of insect pests using plant-mediated RNA interference.
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Affiliation(s)
| | - Wenbo Chen
- Boyce Thompson InstituteIthacaNYUSA
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative BiologyZhejiang UniversityHangzhouChina
| | - Sonia Hussain
- Boyce Thompson InstituteIthacaNYUSA
- Present address:
National Institute for Biotechnology and Genetic Engineering CollegePakistan Institute of Engineering and Applied SciencesFaisalabadPakistan
| | - Sara Shakir
- Boyce Thompson InstituteIthacaNYUSA
- Present address:
Gembloux Agro‐Bio Tech InstituteThe University of LiegeGemblouxBelgium
| | - Vered Tzin
- Boyce Thompson InstituteIthacaNYUSA
- Present address:
Jacob Blaustein Institutes for Desert ResearchBen‐Gurion University of the NegevSede BoqerIsrael
| | - Femi Adegbayi
- Boyce Thompson InstituteIthacaNYUSA
- Present address:
Drexel University College of MedicinePhiladelphiaPAUSA
| | - Todd Ugine
- Department of EntomologyCornell UniversityIthacaNYUSA
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Lyu Z, Xiong M, Mao J, Li W, Jiang G, Zhang W. A dsRNA delivery system based on the rosin-modified polyethylene glycol and chitosan induces gene silencing and mortality in Nilaparvata lugens. PEST MANAGEMENT SCIENCE 2023; 79:1518-1527. [PMID: 36519402 DOI: 10.1002/ps.7322] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 11/12/2022] [Accepted: 12/15/2022] [Indexed: 06/17/2023]
Abstract
BACKGROUND RNA interference (RNAi) technology has been considered as a promising pest control strategy due to its species selectivity. One of the popular RNAs is exogenous double strand RNA (dsRNA). However, dsRNA is easily degraded by nucleases and is difficult to pass through the insect body walls, and these factors restrict the application of RNAi technology in pest management. Here, the brown planthopper (BPH, Nilaparvata lugens), a major hemipteran pest of rice in Asia countries was used as a model insect, and a dsRNA topical delivery system was constructed. RESULTS The carrier part of the delivery system was composed of rosin-modified polyethylene glycol and chitosan, termed ROPE@C. When the N/P ratio was greater than 1:1.25, the dsRNA/ROPE@C complex encouraged full binding of the dsRNA. The gel electrophoresis results showed that ROPE@C improved the stability of dsRNA in the presence of nucleases in gut and lumen contents for at least 6 h and in the temperature range from 4 °C to 37 °C. The dsNlCHSA/ROPE@C/alkyl polyglycoside (APG) nano-formulation directly penetrated the body walls reaching hemocoel within 6 h, and consequently, the relative expression of chitin synthetase A (CHSA) in BPH was reduced by 54.3% and the mortality rate was 65.8%. CONCLUSION We developed an appropriate delivery method for dsRNA application in BPH, which is helpful for a large-scale application of RNAi pesticides. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Zihao Lyu
- School of Agriculture, State Key Laboratory of Biocontrol, Sun Yat-sen University, Shenzhen, China
| | - Mingxin Xiong
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou, China
| | - Jie Mao
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Weixiong Li
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou, China
| | - Gangbiao Jiang
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou, China
| | - Wenqing Zhang
- School of Agriculture, State Key Laboratory of Biocontrol, Sun Yat-sen University, Shenzhen, China
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
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Willow J, Silva AI, Taning CNT, Smagghe G, Veromann E. Towards dsRNA-integrated protection of medical Cannabis crops: considering human safety, recent- and developing RNAi methods, and research inroads. PEST MANAGEMENT SCIENCE 2023; 79:1267-1272. [PMID: 36514999 DOI: 10.1002/ps.7323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 12/06/2022] [Accepted: 12/12/2022] [Indexed: 06/17/2023]
Abstract
Owing to the expanding industry of medical Cannabis, we discuss recent milestones in RNA interference (RNAi)-based crop protection research and development that are transferable to medical Cannabis cultivation. Recent and prospective increases in pest pressure in both indoor and outdoor Cannabis production systems, and the need for effective nonchemical pest control technologies (particularly crucial in the context of cultivating plants for medical purposes), are discussed. We support the idea that developing RNAi tactics towards protection of medical Cannabis could play a major role in maximizing success in this continuously expanding industry. However, there remain critical knowledge gaps, especially with regard to RNA pesticide biosafety from a human toxicological viewpoint, as a result of the medical context of Cannabis product use. Furthermore, efforts are needed to optimize transformation and micropropagation of Cannabis plants, examine cutting edge RNAi techniques for various Cannabis-pest scenarios, and investigate the combined application of RNAi- and biological control tactics in medical Cannabis cultivation. © 2022 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
- Jonathan Willow
- Chair of Plant Health, Estonian University of Life Sciences, Tartu, Estonia
| | - Ana I Silva
- Department of Psychiatry and Neuropsychology, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, Netherlands
- Neuroscience and Mental Health Research Institute, MRC Centre for Neuropsychiatric Genetics and Genomics, Cardiff University, Cardiff, UK
| | - Clauvis Nji Tizi Taning
- Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Guy Smagghe
- Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Eve Veromann
- Chair of Plant Health, Estonian University of Life Sciences, Tartu, Estonia
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He H, Li J, Zhang Z, Yan M, Zhang B, Zhu C, Yan W, Shi B, Wang Y, Zhao C, Yan F. A plant virus enhances odorant-binding protein 5 (OBP5) in the vector whitefly for more actively olfactory orientation to the host plant. PEST MANAGEMENT SCIENCE 2023; 79:1410-1419. [PMID: 36480018 DOI: 10.1002/ps.7313] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 10/12/2022] [Accepted: 12/08/2022] [Indexed: 06/17/2023]
Abstract
BACKGROUND The whitefly Bemisia tabaci (Hemiptera: Aleyrodidae) is a notorious agricultural pest and the effective vector of many plant viruses worldwide. Cucurbit chlorotic yellows virus (CCYV), exclusively transmitted by B. tabaci in a semipersistent manner, is a serious causal agent in cucurbit crops in many countries. Plant viruses can manipulate the behaviors of insect vectors to promote the spread of themselves, but underlying mechanisms are remaining unclear. RESULTS In this study, our observations indicated that B. tabaci, when carrying CCYV, oriented more actively to the host plant cucumber. Transcriptome analysis and quantitative polymerase chain reaction with reverse transcription analysis showed that the odorant-binding protein 5 (OBP5) was upregulated with viral acquisition. Sequence and phylogenetic analysis showed that BtabOBP5 was highly homologous with nine OBPs from other hemipteran insects. In addition, OBP5-silenced whiteflies significantly altered their orientation behavior towards cucumber plants and towards some typical volatile organic compounds released from cucumbers. CONCLUSION This study described a novel mechanism by which the olfactory system of vector insects could be regulated by a semipersistent plant virus, thereby affecting insect olfactory behavior and relationship with host plants. These results provided a basis for developing potential olfaction-based pest management strategies in the future. © 2022 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
- Haifang He
- College of Plant Protection, Henan Agricultural University, Zhengzhou, China
| | - Jingjing Li
- College of Plant Protection, Henan Agricultural University, Zhengzhou, China
| | - Zelong Zhang
- College of Plant Protection, Henan Agricultural University, Zhengzhou, China
| | - Minghui Yan
- College of Plant Protection, Henan Agricultural University, Zhengzhou, China
| | - Beibei Zhang
- College of Plant Protection, Henan Agricultural University, Zhengzhou, China
| | - Chaoqiang Zhu
- College of Plant Protection, Henan Agricultural University, Zhengzhou, China
| | - Weili Yan
- College of Plant Protection, Henan Agricultural University, Zhengzhou, China
| | - Baozheng Shi
- College of Plant Protection, Henan Agricultural University, Zhengzhou, China
| | - Yaxin Wang
- College of Plant Protection, Henan Agricultural University, Zhengzhou, China
| | - Chenchen Zhao
- College of Plant Protection, Henan Agricultural University, Zhengzhou, China
| | - Fengming Yan
- College of Plant Protection, Henan Agricultural University, Zhengzhou, China
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Zhang J, Kothalawala S, Yu C. Engineered silica nanomaterials in pesticide delivery: Challenges and perspectives. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 320:121045. [PMID: 36639042 DOI: 10.1016/j.envpol.2023.121045] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 12/04/2022] [Accepted: 01/06/2023] [Indexed: 06/17/2023]
Abstract
Over the past decade, nanopesticide has been developed rapidly for exploring effective and safe alternatives to conventional pesticides with significant drawbacks and risks. Many nanotechnologies, including pesticide nanoemulsions, polymer-based nanopesticides, and metal/metal oxide nanoparticle-based pesticides have emerged and are extensively reviewed. Engineered silica nanomaterials (ESNs) have also shown promising potential as carriers in nanopesticides for modern agriculture. However, there are limited reviews specifically on ESN-based nanopesticides. Herein, we provide a comprehensive review on the recent progress of ESN-based nanopesticide technologies. An introduction of synthetic technology, formation mechanism, and surface engineering technology is firstly presented. Then, the advantages of ESN-based pesticide formulation and their structure-function-relationship are illustrated in detail. Finally, our perspectives on challenges and future research in ESN-based nanopesticide development are discussed.
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Affiliation(s)
- Jun Zhang
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Queensland, 4072, Australia
| | - Sukitha Kothalawala
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Queensland, 4072, Australia
| | - Chengzhong Yu
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Queensland, 4072, Australia.
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40
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Bi F, Yu D, Wei Z, Wei H, Ren H, Wang Y, Ren D, Hua Z, Huang B, Yang G. Core-Shell Polymeric Nanostructures with Intracellular ATP-Fueled dsRNA Delivery toward Genetic Control of Insect Pests. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:2762-2772. [PMID: 36745409 DOI: 10.1021/acs.jafc.2c05737] [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: 06/18/2023]
Abstract
Transgenic RNA interference (RNAi) represents a burgeoning and promising alternative avenue to manage plant diseases and insect pests in plants. Nonviral nanostructured dsRNA carriers have been demonstrated to possess great potential to facilitate the application of RNAi. However, it remains a critical challenge to achieve the targeted and effective release of dsRNA into the pest cells, limiting the efficiency of the biological control of pests and diseases in practical applications. In this study, we designed and constructed a new type of core-shell polymeric nanostructure (CSPN) with controllable structure, eco-friendliness, and good biocompatibility, on which dsRNA can be efficiently loaded. Once loaded into CSPNs, the dsRNA can be effectively prevented from nonsense degradation by enzymes before entering cells, and it shows targeted and image-guided release triggered by intracellular ATP, which significantly increases the efficiency of gene transfection. Significantly, the in vivo study of the typical lepidoptera silkworm after oral feeding demonstrates the potential of dsCHT10 in CSPNs for a much better knockdown efficiency than that of naked dsCHT10. This innovation enables the nanotechnology developed for the disease microenvironment-triggered release of therapeutic genes for application in sustainable crop protection.
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Affiliation(s)
- Feihu Bi
- Biomass Molecular Engineering Center and Department of Materials Science and Engineering, Anhui Agricultural University, Hefei 230036, Anhui, China
| | - Deshui Yu
- Anhui Provincial Key Laboratory of Microbial Pest Control, Anhui Agricultural University, Hefei 230036, Anhui, China
| | - Zengming Wei
- Biomass Molecular Engineering Center and Department of Materials Science and Engineering, Anhui Agricultural University, Hefei 230036, Anhui, China
| | - Hanchen Wei
- Biomass Molecular Engineering Center and Department of Materials Science and Engineering, Anhui Agricultural University, Hefei 230036, Anhui, China
| | - Hui Ren
- Biomass Molecular Engineering Center and Department of Materials Science and Engineering, Anhui Agricultural University, Hefei 230036, Anhui, China
| | - Yulong Wang
- Anhui Provincial Key Laboratory of Microbial Pest Control, Anhui Agricultural University, Hefei 230036, Anhui, China
| | - Dalong Ren
- Anhui Province Key Laboratory of Local Livestock and Poultry Genetic Resource Conservation and Bio-breeding, Anhui Agricultural University, Hefei 230036, Anhui, China
| | - Zan Hua
- Biomass Molecular Engineering Center and Department of Materials Science and Engineering, Anhui Agricultural University, Hefei 230036, Anhui, China
| | - Bo Huang
- Anhui Provincial Key Laboratory of Microbial Pest Control, Anhui Agricultural University, Hefei 230036, Anhui, China
| | - Guang Yang
- Biomass Molecular Engineering Center and Department of Materials Science and Engineering, Anhui Agricultural University, Hefei 230036, Anhui, China
- Anhui Provincial Key Laboratory of Microbial Pest Control, Anhui Agricultural University, Hefei 230036, Anhui, China
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Moulick D, Bhutia KL, Sarkar S, Roy A, Mishra UN, Pramanick B, Maitra S, Shankar T, Hazra S, Skalicky M, Brestic M, Barek V, Hossain A. The intertwining of Zn-finger motifs and abiotic stress tolerance in plants: Current status and future prospects. FRONTIERS IN PLANT SCIENCE 2023; 13:1083960. [PMID: 36684752 PMCID: PMC9846276 DOI: 10.3389/fpls.2022.1083960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Accepted: 11/22/2022] [Indexed: 06/17/2023]
Abstract
Environmental stresses such as drought, high salinity, and low temperature can adversely modulate the field crop's ability by altering the morphological, physiological, and biochemical processes of the plants. It is estimated that about 50% + of the productivity of several crops is limited due to various types of abiotic stresses either presence alone or in combination (s). However, there are two ways plants can survive against these abiotic stresses; a) through management practices and b) through adaptive mechanisms to tolerate plants. These adaptive mechanisms of tolerant plants are mostly linked to their signalling transduction pathway, triggering the action of plant transcription factors and controlling the expression of various stress-regulated genes. In recent times, several studies found that Zn-finger motifs have a significant function during abiotic stress response in plants. In the first report, a wide range of Zn-binding motifs has been recognized and termed Zn-fingers. Since the zinc finger motifs regulate the function of stress-responsive genes. The Zn-finger was first reported as a repeated Zn-binding motif, comprising conserved cysteine (Cys) and histidine (His) ligands, in Xenopus laevis oocytes as a transcription factor (TF) IIIA (or TFIIIA). In the proteins where Zn2+ is mainly attached to amino acid residues and thus espousing a tetrahedral coordination geometry. The physical nature of Zn-proteins, defining the attraction of Zn-proteins for Zn2+, is crucial for having an in-depth knowledge of how a Zn2+ facilitates their characteristic function and how proteins control its mobility (intra and intercellular) as well as cellular availability. The current review summarized the concept, importance and mechanisms of Zn-finger motifs during abiotic stress response in plants.
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Affiliation(s)
- Debojyoti Moulick
- Department of Environmental Science, University of Kalyani, Nadia, West Bengal, India
| | - Karma Landup Bhutia
- Department of Agricultural Biotechnology & Molecular Breeding, College of Basic Science and Humanities, Dr. Rajendra Prasad Central Agricultural University, Samastipur, India
| | - Sukamal Sarkar
- School of Agriculture and Rural Development, Faculty Centre for Integrated Rural Development and Management (IRDM), Ramakrishna Mission Vivekananda Educational and Research Institute, Ramakrishna Mission Ashrama, Narendrapur, Kolkata, India
| | - Anirban Roy
- School of Agriculture and Rural Development, Faculty Centre for Integrated Rural Development and Management (IRDM), Ramakrishna Mission Vivekananda Educational and Research Institute, Ramakrishna Mission Ashrama, Narendrapur, Kolkata, India
| | - Udit Nandan Mishra
- Department of Crop Physiology and Biochemistry, Sri University, Cuttack, Odisha, India
| | - Biswajit Pramanick
- Department of Agronomy, Dr. Rajendra Prasad Central Agricultural University, PUSA, Samastipur, Bihar, India
- Department of Agronomy and Horticulture, University of Nebraska Lincoln, Scottsbluff, NE, United States
| | - Sagar Maitra
- Department of Agronomy and Agroforestry, Centurion University of Technology and Management, Paralakhemundi, Odisha, India
| | - Tanmoy Shankar
- Department of Agronomy and Agroforestry, Centurion University of Technology and Management, Paralakhemundi, Odisha, India
| | - Swati Hazra
- School of Agricultural Sciences, Sharda University, Greater Noida, Uttar Pradesh, India
| | - Milan Skalicky
- Department of Botany and Plant Physiology, Faculty of Agrobiology, Food, and Natural Resources, Czech University of Life Sciences Prague, Prague, Czechia
| | - Marian Brestic
- Department of Botany and Plant Physiology, Faculty of Agrobiology, Food, and Natural Resources, Czech University of Life Sciences Prague, Prague, Czechia
- Institute of Plant and Environmental Sciences, Slovak University of Agriculture, Nitra, Slovakia
| | - Viliam Barek
- Department of Water Resources and Environmental Engineering, Faculty of Horticulture and Landscape Engineering, Slovak University of Agriculture, Nitra, Slovakia
| | - Akbar Hossain
- Division of Agronomy, Bangladesh Wheat and Maize Research Institute, Dinajpur, Bangladesh
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Vasquez DDN, Pinheiro DH, Teixeira LA, Moreira-Pinto CE, Macedo LLP, Salles-Filho ALO, Silva MCM, Lourenço-Tessutti IT, Morgante CV, Silva LP, Grossi-de-Sa MF. Simultaneous silencing of juvenile hormone metabolism genes through RNAi interrupts metamorphosis in the cotton boll weevil. Front Mol Biosci 2023; 10:1073721. [PMID: 36950526 PMCID: PMC10025338 DOI: 10.3389/fmolb.2023.1073721] [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: 10/18/2022] [Accepted: 02/14/2023] [Indexed: 03/08/2023] Open
Abstract
The cotton boll weevil (CBW) (Anthonomus grandis) is one of the major insect pests of cotton in Brazil. Currently, CBW control is mainly achieved by insecticide application, which is costly and insufficient to ensure effective crop protection. RNA interference (RNAi) has been used in gene function analysis and the development of insect control methods. However, some insect species respond poorly to RNAi, limiting the widespread application of this approach. Therefore, nanoparticles have been explored as an option to increase RNAi efficiency in recalcitrant insects. Herein, we investigated the potential of chitosan-tripolyphosphate (CS-TPP) and polyethylenimine (PEI) nanoparticles as a dsRNA carrier system to improve RNAi efficiency in the CBW. Different formulations of the nanoparticles with dsRNAs targeting genes associated with juvenile hormone metabolism, such as juvenile hormone diol kinase (JHDK), juvenile hormone epoxide hydrolase (JHEH), and methyl farnesoate hydrolase (MFE), were tested. The formulations were delivered to CBW larvae through injection (0.05-2 µg), and the expression of the target genes was evaluated using RT-qPCR. PEI nanoparticles increased targeted gene silencing compared with naked dsRNAs (up to 80%), whereas CS-TPP-dsRNA nanoparticles decreased gene silencing (0%-20%) or led to the same level of gene silencing as the naked dsRNAs (up to 50%). We next evaluated the effects of targeting a single gene or simultaneously targeting two genes via the injection of naked dsRNAs or dsRNAs complexed with PEI (500 ng) on CBW survival and phenotypes. Overall, the gene expression analysis showed that the treatments with PEI targeting either a single gene or multiple genes induced greater gene silencing than naked dsRNA (∼60%). In addition, the injection of dsJHEH/JHDK, either naked or complexed with PEI, significantly affected CBW survival (18% for PEI nanoparticles and 47% for naked dsRNA) and metamorphosis. Phenotypic alterations, such as uncompleted pupation or malformed pupae, suggested that JHEH and JHDK are involved in developmental regulation. Moreover, CBW larvae treated with dsJHEH/JHDK + PEI (1,000 ng/g) exhibited significantly lower survival rate (55%) than those that were fed the same combination of naked dsRNAs (30%). Our findings demonstrated that PEI nanoparticles can be used as an effective tool for evaluating the biological role of target genes in the CBW as they increase the RNAi response.
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Affiliation(s)
- Daniel D. N. Vasquez
- Embrapa Genetic Resources and Biotechnology, Brasília, Brazil
- Catholic University of Brasília, Brasília, Brazil
| | | | - Lays A. Teixeira
- Embrapa Genetic Resources and Biotechnology, Brasília, Brazil
- Catholic University of Brasília, Brasília, Brazil
- Embrapa Café, Brasília, Brazil
| | | | - Leonardo L. P. Macedo
- Embrapa Genetic Resources and Biotechnology, Brasília, Brazil
- National Institute of Science and Technology (INCT PlantStress Biotech), Embrapa, Brasília, Brazil
| | - Alvaro L. O. Salles-Filho
- Embrapa Genetic Resources and Biotechnology, Brasília, Brazil
- Federal University of Paraná, Curitiba, Brazil
| | - Maria C. M. Silva
- Embrapa Genetic Resources and Biotechnology, Brasília, Brazil
- National Institute of Science and Technology (INCT PlantStress Biotech), Embrapa, Brasília, Brazil
| | - Isabela T. Lourenço-Tessutti
- Embrapa Genetic Resources and Biotechnology, Brasília, Brazil
- National Institute of Science and Technology (INCT PlantStress Biotech), Embrapa, Brasília, Brazil
| | - Carolina V. Morgante
- Embrapa Genetic Resources and Biotechnology, Brasília, Brazil
- National Institute of Science and Technology (INCT PlantStress Biotech), Embrapa, Brasília, Brazil
- Embrapa SemiArid, Petrolina, Brazil
| | | | - Maria F. Grossi-de-Sa
- Embrapa Genetic Resources and Biotechnology, Brasília, Brazil
- Catholic University of Brasília, Brasília, Brazil
- National Institute of Science and Technology (INCT PlantStress Biotech), Embrapa, Brasília, Brazil
- *Correspondence: Maria F. Grossi-de-Sa,
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He L, Huang Y, Tang X. RNAi-based pest control: Production, application and the fate of dsRNA. Front Bioeng Biotechnol 2022; 10:1080576. [PMID: 36524052 PMCID: PMC9744970 DOI: 10.3389/fbioe.2022.1080576] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 11/17/2022] [Indexed: 10/21/2023] Open
Abstract
The limitations of conventional pesticides have raised the demand for innovative and sustainable solutions for plant protection. RNA Interference (RNAi) triggered by dsRNA has evolved as a promising strategy to control insects in a species-specific manner. In this context, we review the methods for mass production of dsRNA, the approaches of exogenous application of dsRNA in the field, and the fate of dsRNA after application. Additionally, we describe the opportunities and challenges of using nanoparticles as dsRNA carriers to control insects. Furthermore, we provide future directions to improve pest management efficiency by utilizing the synergistic effects of multiple target genes. Meanwhile, the establishment of a standardized framework for assessment and regulatory consensus is critical to the commercialization of RNA pesticides.
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Affiliation(s)
- Li He
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
- Key Laboratory of Urban Agriculture, Ministry of Agriculture and Rural Affairs, Shanghai, China
- Shanghai Yangtze River Delta Eco-Environmental Change and Management Observation and Research Station, Ministry of Science and Technology, Ministry of Education, Shanghai, China
| | - Yanna Huang
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
- Key Laboratory of Urban Agriculture, Ministry of Agriculture and Rural Affairs, Shanghai, China
- Shanghai Yangtze River Delta Eco-Environmental Change and Management Observation and Research Station, Ministry of Science and Technology, Ministry of Education, Shanghai, China
| | - Xueming Tang
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
- Key Laboratory of Urban Agriculture, Ministry of Agriculture and Rural Affairs, Shanghai, China
- Shanghai Yangtze River Delta Eco-Environmental Change and Management Observation and Research Station, Ministry of Science and Technology, Ministry of Education, Shanghai, China
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Niño-Sánchez J, Sambasivam PT, Sawyer A, Hamby R, Chen A, Czislowski E, Li P, Manzie N, Gardiner DM, Ford R, Xu ZP, Mitter N, Jin H. BioClay™ prolongs RNA interference-mediated crop protection against Botrytis cinerea. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2022; 64:2187-2198. [PMID: 36040241 PMCID: PMC10464624 DOI: 10.1111/jipb.13353] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 08/26/2022] [Indexed: 06/15/2023]
Abstract
One of the most promising tools for the control of fungal plant diseases is spray-induced gene silencing (SIGS). In SIGS, small interfering RNA (siRNA) or double-stranded RNA (dsRNA) targeting essential or virulence-related pathogen genes are exogenously applied to plants and postharvest products to trigger RNA interference (RNAi) of the targeted genes, inhibiting fungal growth and disease. However, SIGS is limited by the unstable nature of RNA under environmental conditions. The use of layered double hydroxide or clay particles as carriers to deliver biologically active dsRNA, a formulation termed BioClay™, can enhance RNA durability on plants, prolonging its activity against pathogens. Here, we demonstrate that dsRNA delivered as BioClay can prolong protection against Botrytis cinerea, a major plant fungal pathogen, on tomato leaves and fruit and on mature chickpea plants. BioClay increased the protection window from 1 to 3 weeks on tomato leaves and from 5 to 10 days on tomato fruits, when compared with naked dsRNA. In flowering chickpea plants, BioClay provided prolonged protection for up to 4 weeks, covering the critical period of poding, whereas naked dsRNA provided limited protection. This research represents a major step forward for the adoption of SIGS as an eco-friendly alternative to traditional fungicides.
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Affiliation(s)
- Jonatan Niño-Sánchez
- Department of Microbiology & Plant Pathology, Center for Plant Cell Biology, Institute for Integrative Genome Biology, University of California, RiversideCalifornia, 92521, USA
- Department of Plant Production and Forest Resources, University of Valladolid, Palencia 34004, Spain
- iuFOR- Sustainable Forest Management Research Institute, University of Valladolid–INIA, Palencia 34004, Spain
| | - Prabhakaran T. Sambasivam
- Centre for Planetary Health and Food Security, Griffith University, Nathan, Queensland, 4111, Australia
| | - Anne Sawyer
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Queensland, 4072, Australia
- Queensland Alliance for Agriculture and Food Innovation, Centre for Horticultural Science, The University of Queensland, St Lucia, Queensland, 4072, Australia
| | - Rachael Hamby
- Department of Microbiology & Plant Pathology, Center for Plant Cell Biology, Institute for Integrative Genome Biology, University of California, RiversideCalifornia, 92521, USA
| | - Angela Chen
- Department of Microbiology & Plant Pathology, Center for Plant Cell Biology, Institute for Integrative Genome Biology, University of California, RiversideCalifornia, 92521, USA
| | - Elizabeth Czislowski
- Queensland Alliance for Agriculture and Food Innovation, Centre for Horticultural Science, The University of Queensland, St Lucia, Queensland, 4072, Australia
- School of Agriculture and Food Sciences, The University of Queensland, St Lucia, Queensland, 4072, Australia
| | - Peng Li
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, Queensland, 4072, Australia
| | - Narelle Manzie
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Queensland, 4072, Australia
| | - Donald M. Gardiner
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Queensland, 4072, Australia
| | - Rebecca Ford
- Queensland Alliance for Agriculture and Food Innovation, Centre for Horticultural Science, The University of Queensland, St Lucia, Queensland, 4072, Australia
| | - Zhi Ping Xu
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, Queensland, 4072, Australia
| | - 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 & Plant Pathology, Center for Plant Cell Biology, Institute for Integrative Genome Biology, University of California, RiversideCalifornia, 92521, USA
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45
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Mahmood MA, Awan MJA, Mansoor S. BioClay: next-generation crop protection strategy. TRENDS IN PLANT SCIENCE 2022; 27:1090-1092. [PMID: 35981953 DOI: 10.1016/j.tplants.2022.08.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 08/01/2022] [Accepted: 08/04/2022] [Indexed: 06/15/2023]
Abstract
Whitefly and the viruses they transmit pose a serious threat to crops globally. Recently, Jain et al. showed that BioClay-mediated double-stranded RNA (dsRNA) spray provides an eco-friendly approach to controlling whitefly. This 'transgene-free next-generation' insect-specific crop protection strategy may help to reduce the use of chemical pesticides for controlling whitefly.
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Affiliation(s)
- Muhammad Arslan Mahmood
- Agricultural Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE), College of Pakistan Institute of Engineering and Applied Sciences, Jhang Road, Faisalabad, Pakistan
| | - Muhammad Jawad Akbar Awan
- Agricultural Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE), College of Pakistan Institute of Engineering and Applied Sciences, Jhang Road, Faisalabad, Pakistan
| | - Shahid Mansoor
- Agricultural Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE), College of Pakistan Institute of Engineering and Applied Sciences, Jhang Road, Faisalabad, Pakistan.
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Zhang H, Chen J, Gao J, Zhang Q, Liu X, Han Z. New insights into transmission pathways and possible off-target effects of insecticidal dsRNA released by treated plants. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2022; 188:105281. [PMID: 36464336 DOI: 10.1016/j.pestbp.2022.105281] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 09/29/2022] [Accepted: 11/02/2022] [Indexed: 06/17/2023]
Abstract
RNAi has shown great potential in controlling pests and pathogens, and dsRNA-based pesticides have been used in different ways. Due to off-target effects, the transmission pathways and possible impacts of dsRNA on non-target organisms after release should be researched. Here, we tested pathways of dsRNA transmission through the rice-hopper-spider food chain and their efficiency for triggering RNAi. The results revealed five new pathways by which plants transfer dsRNA into the environment through the food chain. We found that ingestion of the tissues or guttation droplets of treated plant could trigger both targeted and off-target RNAi both in consumers and predators. Ingestion of consumer hoppers could also result in localized RNAi in the midguts of the predator spiders. Trace amounts of dsRNA were detected in plant root excretions and in hopper honeydew. Cutting the root tips dramatically increased the levels of dsRNA in root excretions. Host shifting experiments proved that hoppers could transfer a trace amount of dsRNA via vomit. With specially designed dsRNAs, we showed that dsRNA sharing matching sequences of 29 bp or 32 bp in length with non-target genes could trigger off-target RNAi, but that dsRNA sharing 13 bp matching sequences could not. We conclude that field-released pesticidal dsRNA could be transmitted via the hydrophilic transport system in plants, and that this may pose a safety risk to non-target animal consumers that are closely related to target pests. Rational use of pesticidal dsRNAs should involve careful consideration of dsRNA design to manage the biosafety risk.
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Affiliation(s)
- Hainan Zhang
- The Key Laboratory of Monitoring and Management of Plant Diseases and Insects/Department of Entomology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
| | - Jiasheng Chen
- The Key Laboratory of Monitoring and Management of Plant Diseases and Insects/Department of Entomology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; School of Plant Protection, Anhui Agricultural University, Hefei 230036, China
| | - Jing Gao
- The Key Laboratory of Monitoring and Management of Plant Diseases and Insects/Department of Entomology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
| | - Qi Zhang
- The Key Laboratory of Monitoring and Management of Plant Diseases and Insects/Department of Entomology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
| | - Xiaolong Liu
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan 430062, China
| | - Zhaojun Han
- The Key Laboratory of Monitoring and Management of Plant Diseases and Insects/Department of Entomology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China.
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47
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Mondal M, Carver M, Brown JK. Characteristics of environmental RNAi in potato psyllid, Bactericera cockerelli (Sulc) (Hemiptera: Psylloidea: Triozidae). Front Physiol 2022; 13:931951. [PMID: 36330211 PMCID: PMC9623324 DOI: 10.3389/fphys.2022.931951] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 09/20/2022] [Indexed: 11/23/2022] Open
Abstract
RNA interference (RNAi) has potential to become a major tool for integrated management of insect pests of agricultural crops based on sequence-specificity and low doses of rapidly biodegradable dsRNA. Deploying ‘environmental RNAi’ for control of insect vectors of plant pathogens is of increasing interest for combatting emerging plant diseases. Hemipteran insect vectors, including psyllids, are vascular feeders, making their development difficult to control specifically by targeting with pesticidal chemistries. Psyllids transmit “Candidatus Liberibacter solanacearum” the causal organism of potato zebra chip and tomato vein greening diseases, transmitted, respectively, by the potato or tomato psyllid (PoP). Until now, the optimal effective concentration(s) of double-stranded RNA (dsRNA) required for significant gene knockdown and RNAi persistence in PoP have not been determined. The objective of this study was to optimize RNAi in young PoP adults and 3rd instars for screening by oral delivery of dsRNAs. The minimal effective dsRNA concentrations required for robust knockdown and persistence were evaluated by delivering seven concentrations spanning 0.1 ng/μL to 500 ng/μL over post ingestion-access periods (IAP) ranging from 48 h to 12 days. The PoP gene candidates evaluated as targets were vacuolar ATPase subunit A, clathrin heavy chain, and non-fermenting protein 7, which were evaluated for knockdown by qPCR amplification. The minimum and/or the second most effective dsRNA concentration resulting in effective levels of gene knockdown was 100 ng/μL for all three targets. Higher concentrations did not yield further knockdown, indicating potential RISC saturation at the higher doses. Gene silencing post-IAP of 100 ng/μL dsRNA persisted for 3–5 days in adults and nymphs, with the PoP 3rd instar, followed by teneral and mature adults, respectively, exhibiting the most robust RNAi-response.
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Affiliation(s)
- Mosharrof Mondal
- School of Plant Sciences, The University of Arizona, Tucson, AZ, United States
- RNAissance Ag LLC, St. Louis, MO, United States
| | - Megan Carver
- School of Plant Sciences, The University of Arizona, Tucson, AZ, United States
| | - Judith K. Brown
- School of Plant Sciences, The University of Arizona, Tucson, AZ, United States
- *Correspondence: Judith K. Brown,
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Hough J, Howard JD, Brown S, Portwood DE, Kilby PM, Dickman MJ. Strategies for the production of dsRNA biocontrols as alternatives to chemical pesticides. Front Bioeng Biotechnol 2022; 10:980592. [PMID: 36299286 PMCID: PMC9588923 DOI: 10.3389/fbioe.2022.980592] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 08/23/2022] [Indexed: 01/09/2023] Open
Abstract
Current crop pest control strategies rely on insecticidal and fungicidal sprays, plant genetic resistance, transgenes and agricultural practices. However, many insects, plant viruses, and fungi have no current means of control or have developed resistance against traditional pesticides. dsRNA is emerging as a novel sustainable method of plant protection as an alternative to traditional chemical pesticides. The successful commercialisation of dsRNA based biocontrols for effective pest management strategies requires the economical production of large quantities of dsRNA combined with suitable delivery methods to ensure RNAi efficacy against the target pest. A number of methods exist for the production and delivery of dsRNA based biocontrols and here we review alternative methods currently employed and emerging new approaches for their production. Additionally, we highlight potential challenges that will need to be addressed prior to widespread adoption of dsRNA biocontrols as novel sustainable alternatives to traditional chemical pesticides.
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Affiliation(s)
- James Hough
- Department of Chemical and Biological Engineering, University of Sheffield, Sheffield, United Kingtom
| | - John D Howard
- Department of Chemical and Biological Engineering, University of Sheffield, Sheffield, United Kingtom
| | - Stephen Brown
- Sheffield RNAi Screening Facility, School of Biosciences, University of Sheffield, Sheffield, United Kingtom
| | - David E Portwood
- Syngenta, Jealott's Hill International Research Centre, Bracknell, United Kingdom
| | - Peter M Kilby
- Syngenta, Jealott's Hill International Research Centre, Bracknell, United Kingdom
| | - Mark J Dickman
- Department of Chemical and Biological Engineering, University of Sheffield, Sheffield, United Kingtom
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Bocos-Asenjo IT, Niño-Sánchez J, Ginésy M, Diez JJ. New Insights on the Integrated Management of Plant Diseases by RNA Strategies: Mycoviruses and RNA Interference. Int J Mol Sci 2022; 23:9236. [PMID: 36012499 PMCID: PMC9409477 DOI: 10.3390/ijms23169236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 08/09/2022] [Accepted: 08/15/2022] [Indexed: 11/25/2022] Open
Abstract
RNA-based strategies for plant disease management offer an attractive alternative to agrochemicals that negatively impact human and ecosystem health and lead to pathogen resistance. There has been recent interest in using mycoviruses for fungal disease control after it was discovered that some cause hypovirulence in fungal pathogens, which refers to a decline in the ability of a pathogen to cause disease. Cryphonectria parasitica, the causal agent of chestnut blight, has set an ideal model of management through the release of hypovirulent strains. However, mycovirus-based management of plant diseases is still restricted by limited approaches to search for viruses causing hypovirulence and the lack of protocols allowing effective and systemic virus infection in pathogens. RNA interference (RNAi), the eukaryotic cell system that recognizes RNA sequences and specifically degrades them, represents a promising. RNA-based disease management method. The natural occurrence of cross-kingdom RNAi provides a basis for host-induced gene silencing, while the ability of most pathogens to uptake exogenous small RNAs enables the use of spray-induced gene silencing techniques. This review describes the mechanisms behind and the potential of two RNA-based strategies, mycoviruses and RNAi, for plant disease management. Successful applications are discussed, as well as the research gaps and limitations that remain to be addressed.
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Affiliation(s)
- Irene Teresa Bocos-Asenjo
- Department of Plant Production and Forest Resources, University of Valladolid, 34004 Palencia, Spain
- iuFOR-Sustainable Forest Management Research Institute, University of Valladolid-INIA, 34004 Palencia, Spain
| | - Jonatan Niño-Sánchez
- Department of Plant Production and Forest Resources, University of Valladolid, 34004 Palencia, Spain
- iuFOR-Sustainable Forest Management Research Institute, University of Valladolid-INIA, 34004 Palencia, Spain
| | - Mireille Ginésy
- Department of Plant Production and Forest Resources, University of Valladolid, 34004 Palencia, Spain
- iuFOR-Sustainable Forest Management Research Institute, University of Valladolid-INIA, 34004 Palencia, Spain
| | - Julio Javier Diez
- Department of Plant Production and Forest Resources, University of Valladolid, 34004 Palencia, Spain
- iuFOR-Sustainable Forest Management Research Institute, University of Valladolid-INIA, 34004 Palencia, Spain
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