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Liu M, Ge R, Song L, Chen Y, Yan S, Bu C. The chitinase genes TuCht4 and TuCht10 are indispensable for molting and survival of Tetranychus urticae. INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY 2024; 171:104150. [PMID: 38871132 DOI: 10.1016/j.ibmb.2024.104150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 05/16/2024] [Accepted: 06/10/2024] [Indexed: 06/15/2024]
Abstract
Insect chitinases (Chts) play a crucial role in the molting process, enabling continuous growth through sequential developmental stages. Based on their high homology to insect Chts, TuCht1 (group II), TuCht4 (group I) and TuCht10 (group IV) were identified, and their roles during molting process were investigated. TuCht1 was mainly expressed in the deutonymphal stage, while TuCht4 was mainly expressed in the nymphal stage and the highest expression level of TuCht10 was observed in the larvae. Feeding RNAi assays have shown that group I TuCht4 and group Ⅳ TuCht10 are involved in mite molting. Suppression of TuCht4 or TuCht10 resulted in high mortality, molting abnormalities and the absence of distinct electron dense layers of chitinous horizontal laminae in the cuticle, as demonstrated by scanning electron microscopy and transmission electron microscopy. The nanocarrier mediated RNAi had significantly higher RNAi efficiency and caused higher mortality. The results of the present study suggest that chitinase genes TuCht4 and TuCht10 are potential targets for dietary RNAi, and demonstrates a nanocarrier-mediated delivery system to enhance the bioactivity of dsRNA, providing a potential technology for green pest management.
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Affiliation(s)
- Ming Liu
- Key Laboratory of Northern Urban Agriculture of Ministry of Agriculture and Rural Affairs, College of Bioscience and Resource Environment, Beijing University of Agriculture, Beijing, 102206, China
| | - Rongchumu Ge
- Key Laboratory of Northern Urban Agriculture of Ministry of Agriculture and Rural Affairs, College of Bioscience and Resource Environment, Beijing University of Agriculture, Beijing, 102206, China
| | - Lihong Song
- Key Laboratory of Northern Urban Agriculture of Ministry of Agriculture and Rural Affairs, College of Bioscience and Resource Environment, Beijing University of Agriculture, Beijing, 102206, China
| | - Yan Chen
- Key Laboratory of Northern Urban Agriculture of Ministry of Agriculture and Rural Affairs, College of Bioscience and Resource Environment, Beijing University of Agriculture, Beijing, 102206, China
| | - Shuo Yan
- Department of Plant Biosecurity and MOA Key Laboratory of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, Beijing, 100193, China.
| | - Chunya Bu
- Key Laboratory of Northern Urban Agriculture of Ministry of Agriculture and Rural Affairs, College of Bioscience and Resource Environment, Beijing University of Agriculture, Beijing, 102206, China.
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2
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Liang Q, Hou C, Tan Y, Wei N, Sun S, Zhang S, Feng J. Construction and biological effects of a redox-enzyme dual-responsive lufenuron nano-controlled release formulation. PEST MANAGEMENT SCIENCE 2024; 80:1314-1324. [PMID: 37903714 DOI: 10.1002/ps.7862] [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: 08/27/2023] [Revised: 10/19/2023] [Accepted: 10/31/2023] [Indexed: 11/01/2023]
Abstract
BACKGROUND Pesticide formulations based on nanotechnology can effectively improve the efficiency of pesticide utilization and reduce pesticide residues in the environment. In this study, mesoporous silica nanoparticles containing disulfide bonds were synthesized by the sol-gel method, carboxylated and adsorbed with lufenuron, and grafted with cellulose to obtain a lufenuron-loaded nano-controlled release formulation (Luf@MSNs-ss-cellulose). RESULTS The structure and properties of Luf@MSNs-ss-cellulose were characterized. The results showed that Luf@MSNs-ss-cellulose exhibits a regular spherical shape with 12.41% pesticide loading. The highest cumulative release rate (73.46%) of this pesticide-loaded nanoparticle was observed at 7 days in the environment of glutathione and cellulase, which shows redox-enzyme dual-responsive performance. As a result of cellulose grafting, Luf@MSNs-ss-cellulose had a small contact angle and high adhesion work on corn leaves, indicating good wetting and adhesion properties. After 14 days of spraying with 20 mg L-1 formulations in the long-term control efficacy experiment, the mortality of Luf@MSNs-ss-cellulose against Ostrinia furnacalis larvae (56.67%) was significantly higher than that of commercial Luf@EW (36.67%). Luf@MSNs-ss-cellulose is safer for earthworms and L02 cells. CONCLUSION The nano-controlled release formulation obtained in this study achieved intelligent pesticide delivery in time and space under the environmental stimulation of glutathione and cellulase, providing an effective method for the development of novel pesticide delivery systems. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Qianwei Liang
- College of Plant Protection, Yangzhou University, Yangzhou, China
| | - Chaoqun Hou
- College of Plant Protection, Yangzhou University, Yangzhou, China
| | - Yifei Tan
- College of Plant Protection, Yangzhou University, Yangzhou, China
| | - Nuo Wei
- College of Plant Protection, Yangzhou University, Yangzhou, China
| | - Shaoyang Sun
- College of Plant Protection, Yangzhou University, Yangzhou, China
| | - Shengfu Zhang
- College of Plant Protection, Yangzhou University, Yangzhou, China
| | - Jianguo Feng
- College of Plant Protection, Yangzhou University, Yangzhou, China
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3
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Zhang W, Sun C, Lang H, Wang J, Li X, Guo J, Zhang Z, Zheng H. Toll receptor ligand Spätzle 4 responses to the highly pathogenic Enterococcus faecalis from Varroa mites in honeybees. PLoS Pathog 2023; 19:e1011897. [PMID: 38150483 PMCID: PMC10775982 DOI: 10.1371/journal.ppat.1011897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 01/09/2024] [Accepted: 12/12/2023] [Indexed: 12/29/2023] Open
Abstract
Honeybees play a major role in crop pollination, which supports the agricultural economy and international food supply. The colony health of honeybees is threatened by the parasitic mite Varroa destructor, which inflicts physical injury on the hosts and serves as the vector for variable viruses. Recently, it shows that V. destructor may also transmit bacteria through the feeding wound, yet it remains unclear whether the invading bacteria can exhibit pathogenicity to the honeybees. Here, we incidentally isolate Enterococcus faecalis, one of the most abundant bacteria in Varroa mites, from dead bees during our routine generation of microbiota-free bees in the lab. In vivo tests show that E. faecalis is only pathogenic in Apis mellifera but not in Apis cerana. The expression of antimicrobial peptide genes is elevated following infection in A. cerana. The gene-based molecular evolution analysis identifies positive selection of genes encoding Späetzle 4 (Spz4) in A. cerana, a signaling protein in the Toll pathway. The amino acid sites under positive selection are related to structural changes in Spz4 protein, suggesting improvement of immunity in A. cerana. The knock-down of Spz4 in A. cerana significantly reduces the survival rates under E. faecalis challenge and the expression of antimicrobial peptide genes. Our results indicate that bacteria associated with Varroa mites are pathogenic to adult bees, and the positively selected gene Spz4 in A. cerana is crucial in response to this mite-related pathogen.
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Affiliation(s)
- Wenhao Zhang
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, China
| | - Cheng Sun
- College of Life Sciences, Capital Normal University, Beijing, China
| | - Haoyu Lang
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Jieni Wang
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Xinyu Li
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, China
| | - Jun Guo
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Zijing Zhang
- Hebei Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology, Hebei Collaborative Innovation Center for Eco-Environment, College of Life Sciences, Hebei Normal University, Shijiazhuang, China
| | - Hao Zheng
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, China
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
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4
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Liu Y, Wei Y, Yin M, Shen J, Du X, Yan S, Dong M. Star Polymer-Based Nanodelivery System for Pesticides: Enhanced Broad-Spectrum Toxicity and Selective Toxicity. ACS OMEGA 2023; 8:41595-41602. [PMID: 37970005 PMCID: PMC10633828 DOI: 10.1021/acsomega.3c05722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 09/08/2023] [Accepted: 10/12/2023] [Indexed: 11/17/2023]
Abstract
The application of nanotechnology in agriculture can break through many traditional problems of synthetic pesticides, especially for increasing bioactivity and reducing application amount. However, the safety and selective toxicity of nanocarrier-loaded pesticides should be clarified toward natural predators. In this context, an efficient spirotetramat nanodelivery system was successfully constructed based on a star polymer (SPc). Spirotetramat could complex with SPc through hydrogen bonding and van der Waals forces spontaneously. The self-assembly of the spirotetramat/SPc complex decreased the particle size of spirotetramat from 1292 to 710 nm. After the complexation with SPc, the lethal concentration 50 (LC50) values of spirotratemat decreased from 252.064 to 108.871 and 332.079 to 189.257 mg/L toward target pest Frankliniella occidentalis and nontarget predator Orius sauteri with the synergic ratios of 2.315 and 1.755, respectively. The possible reason might be due to the enhancement of the broad-spectrum toxicity of SPc-loaded pesticides. Importantly, the selective toxicity ratio (STR) of spirotetramat increased from 1.32 to 1.73 with the help of SPc, indicating the higher selectivity of the spirotratemat/SPc complex toward predators. Meanwhile, the safety coefficient (SC) of spirotratemat was not significantly changed after complexation with SPc, and the spirotratemat/SPc complex belonged to the medium risk pesticide. Overall, the assembly with SPc could not only improve the control efficacy of spirotetramat but also increase its selectivity as well as alleviate its negative effects on predators. The current study is beneficial for understanding the enhancement of broad-spectrum toxicity and the selective toxicity of nanocarrier-loaded pesticides.
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Affiliation(s)
- Yuanrui Liu
- Department
of Plant Biosecurity and MARA Key Laboratory of Surveillance and Management
for Plant Quarantine Pests, College of Plant Protection, China Agricultural University, Beijing 100193, China
| | - Ying Wei
- Department
of Plant Biosecurity and MARA Key Laboratory of Surveillance and Management
for Plant Quarantine Pests, College of Plant Protection, China Agricultural University, Beijing 100193, China
| | - Meizhen Yin
- State
Key Laboratory of Chemical Resource Engineering, Beijing Lab of Biomedical
Materials, Beijing University of Chemical
Technology, Beijing 100029, China
| | - Jie Shen
- Department
of Plant Biosecurity and MARA Key Laboratory of Surveillance and Management
for Plant Quarantine Pests, College of Plant Protection, China Agricultural University, Beijing 100193, China
| | - Xiangge Du
- Department
of Plant Biosecurity and MARA Key Laboratory of Surveillance and Management
for Plant Quarantine Pests, College of Plant Protection, China Agricultural University, Beijing 100193, China
| | - Shuo Yan
- Department
of Plant Biosecurity and MARA Key Laboratory of Surveillance and Management
for Plant Quarantine Pests, College of Plant Protection, China Agricultural University, Beijing 100193, China
| | - Min Dong
- Department
of Plant Biosecurity and MARA Key Laboratory of Surveillance and Management
for Plant Quarantine Pests, College of Plant Protection, China Agricultural University, Beijing 100193, China
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Lang H, Wang H, Wang H, Zhong Z, Xie X, Zhang W, Guo J, Meng L, Hu X, Zhang X, Zheng H. Engineered symbiotic bacteria interfering Nosema redox system inhibit microsporidia parasitism in honeybees. Nat Commun 2023; 14:2778. [PMID: 37210527 DOI: 10.1038/s41467-023-38498-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 05/05/2023] [Indexed: 05/22/2023] Open
Abstract
Nosema ceranae is an intracellular parasite invading the midgut of honeybees, which causes serious nosemosis implicated in honeybee colony losses worldwide. The core gut microbiota is involved in protecting against parasitism, and the genetically engineering of the native gut symbionts provides a novel and efficient way to fight pathogens. Here, using laboratory-generated bees mono-associated with gut members, we find that Snodgrassella alvi inhibit microsporidia proliferation, potentially via the stimulation of host oxidant-mediated immune response. Accordingly, N. ceranae employs the thioredoxin and glutathione systems to defend against oxidative stress and maintain a balanced redox equilibrium, which is essential for the infection process. We knock down the gene expression using nanoparticle-mediated RNA interference, which targets the γ-glutamyl-cysteine synthetase and thioredoxin reductase genes of microsporidia. It significantly reduces the spore load, confirming the importance of the antioxidant mechanism for the intracellular invasion of the N. ceranae parasite. Finally, we genetically modify the symbiotic S. alvi to deliver dsRNA corresponding to the genes involved in the redox system of the microsporidia. The engineered S. alvi induces RNA interference and represses parasite gene expression, thereby inhibits the parasitism significantly. Specifically, N. ceranae is most suppressed by the recombinant strain corresponding to the glutathione synthetase or by a mixture of bacteria expressing variable dsRNA. Our findings extend our previous understanding of the protection of gut symbionts against N. ceranae and provide a symbiont-mediated RNAi system for inhibiting microsporidia infection in honeybees.
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Affiliation(s)
- Haoyu Lang
- College of Food Science and Nutritional Engineering, China Agricultural University, 100083, Beijing, China
| | - Hao Wang
- College of Food Science and Nutritional Engineering, China Agricultural University, 100083, Beijing, China
| | - Haoqing Wang
- College of Food Science and Nutritional Engineering, China Agricultural University, 100083, Beijing, China
| | - Zhaopeng Zhong
- College of Food Science and Nutritional Engineering, China Agricultural University, 100083, Beijing, China
| | - Xianbing Xie
- Department of Laboratory Animal Science, Nanchang University, 330006, Nanchang, China
| | - Wenhao Zhang
- Faculty of Agriculture and Food, Kunming University of Science and Technology, 650031, Kunming, China
| | - Jun Guo
- Faculty of Life Science and Technology, Kunming University of Science and Technology, 650031, Kunming, China
| | - Liang Meng
- BGI-Qingdao, BGI-Shenzhen, 266555, Qingdao, China
| | - Xiaosong Hu
- College of Food Science and Nutritional Engineering, China Agricultural University, 100083, Beijing, China
| | - Xue Zhang
- College of Plant Protection, China Agricultural University, 100083, Beijing, China
| | - Hao Zheng
- College of Food Science and Nutritional Engineering, China Agricultural University, 100083, Beijing, China.
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Su X, Yan S, Zhao W, Liu H, Jiang Q, Wei Y, Guo H, Yin M, Shen J, Cheng H. Self-assembled thiophanate-methyl/star polycation complex prevents plant cell-wall penetration and fungal carbon utilization during cotton infection by Verticillium dahliae. Int J Biol Macromol 2023; 239:124354. [PMID: 37028625 DOI: 10.1016/j.ijbiomac.2023.124354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 03/23/2023] [Accepted: 04/03/2023] [Indexed: 04/08/2023]
Abstract
No effective fungicides are available for the management of Verticillium dahliae, which causes vascular wilt disease. In this study, a star polycation (SPc)-based nanodelivery system was used for the first time to develop a thiophanate-methyl (TM) nanoagent for the management of V. dahliae. SPc spontaneously assembled with TM through hydrogen bonding and Van der Waals forces to decrease the particle size of TM from 834 to 86 nm. Compared to TM alone, the SPc-loaded TM further reduced the colony diameter of V. dahliae to 1.12 and 0.64 cm, and the spore number to 1.13 × 108 and 0.72 × 108 cfu/mL at the concentrations of 3.77 and 4.71 mg/L, respectively. The TM nanoagents disturbed the expression of various crucial genes in V. dahliae, and contributed to preventing plant cell-wall degradation and carbon utilization by V. dahliae, which mainly impaired the infective interaction between pathogens and plants. TM nanoagents remarkably decreased the plant disease index and the fungal biomass in the root compared to TM alone, and its control efficacy was the best (61.20 %) among the various formulations tested in the field. Furthermore, SPc showed negligible acute toxicity toward cotton seeds. To the best of our knowledge, this study is the first to design a self-assembled nanofungicide that efficiently inhibits V. dahliae growth and protects cotton from the destructive Verticillium wilt.
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Affiliation(s)
- Xiaofeng Su
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China; Western Agricultural Research Center, Chinese Academy of Agricultural Sciences, Changji 831100, PR China
| | - Shuo Yan
- Department of Plant Biosecurity and MARA Key Laboratory of Surveillance and Management for Plant Quarantine Pests, College of Plant Protection, China Agricultural University, Beijing 100193, PR China.
| | - Weisong Zhao
- Institute of Plant Protection, Hebei Academy of Agriculture and Forestry Sciences, Baoding 071000, PR China
| | - Haiyang Liu
- Institute of Plant Protection, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, PR China
| | - Qinhong Jiang
- Department of Plant Biosecurity and MARA Key Laboratory of Surveillance and Management for Plant Quarantine Pests, College of Plant Protection, China Agricultural University, Beijing 100193, PR China
| | - Ying Wei
- Department of Plant Biosecurity and MARA Key Laboratory of Surveillance and Management for Plant Quarantine Pests, College of Plant Protection, China Agricultural University, Beijing 100193, PR China
| | - Huiming Guo
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China; Western Agricultural Research Center, Chinese Academy of Agricultural Sciences, Changji 831100, PR China
| | - Meizhen Yin
- State Key Laboratory of Chemical Resource Engineering, Beijing Lab of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Jie Shen
- Department of Plant Biosecurity and MARA Key Laboratory of Surveillance and Management for Plant Quarantine Pests, College of Plant Protection, China Agricultural University, Beijing 100193, PR China.
| | - Hongmei Cheng
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China; Western Agricultural Research Center, Chinese Academy of Agricultural Sciences, Changji 831100, PR China.
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7
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Nie D, Li J, Xie Q, Ai L, Zhu C, Wu Y, Gui Q, Zhang L, Tan W. Nanoparticles: A Potential and Effective Method to Control Insect-Borne Diseases. Bioinorg Chem Appl 2023; 2023:5898160. [PMID: 37213220 PMCID: PMC10195175 DOI: 10.1155/2023/5898160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 04/19/2023] [Accepted: 05/03/2023] [Indexed: 05/23/2023] Open
Abstract
Insects act as vectors to carry a wide range of bacteria and viruses that can cause multiple vector-borne diseases in humans. Diseases such as dengue fever, epidemic encephalitis B, and epidemic typhus, which pose serious risks to humans, can be transmitted by insects. Due to the absence of effective vaccines for most arbovirus, insect control was the main strategy for vector-borne diseases control. However, the rise of drug resistance in the vectors brings a great challenge to the prevention and control of vector-borne diseases. Therefore, finding an eco-friendly method for vector control is essential to combat vector-borne diseases. Nanomaterials with the ability to resist insects and deliver drugs offer new opportunities to increase agent efficacy compared with traditional agents, and the application of nanoagents has expanded the field of vector-borne disease control. Up to now, the reviews of nanomaterials mainly focus on biomedicines, and the control of insect-borne diseases has always been a neglected field. In this study, we analyzed 425 works of the literature about different nanoparticles applied on vectors in PubMed around keywords, such as"nanoparticles against insect," "NPs against insect," and "metal nanoparticles against insect." Through these articles, we focus on the application and development of nanoparticles (NPs) for vector control, discussing the lethal mechanism of NPs to vectors, which can explore the prospect of applying nanotechnology in the prevention and control of vectors.
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Affiliation(s)
- Danyue Nie
- Nanjing Bioengineering (Gene) Technology Center for Medicines, Nanjing 210002, China
| | - Jiaqiao Li
- Nanjing Bioengineering (Gene) Technology Center for Medicines, Nanjing 210002, China
- Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Qinghua Xie
- Nanjing Bioengineering (Gene) Technology Center for Medicines, Nanjing 210002, China
- Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Lele Ai
- Nanjing Bioengineering (Gene) Technology Center for Medicines, Nanjing 210002, China
| | - Changqiang Zhu
- Nanjing Bioengineering (Gene) Technology Center for Medicines, Nanjing 210002, China
| | - Yifan Wu
- Nanjing Bioengineering (Gene) Technology Center for Medicines, Nanjing 210002, China
| | - Qiyuan Gui
- Nanjing Bioengineering (Gene) Technology Center for Medicines, Nanjing 210002, China
| | - Lingling Zhang
- Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Weilong Tan
- Nanjing Bioengineering (Gene) Technology Center for Medicines, Nanjing 210002, China
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8
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Yan S, Li N, Guo Y, Chen Y, Ji C, Yin M, Shen J, Zhang J. Chronic exposure to the star polycation (SPc) nanocarrier in the larval stage adversely impairs life history traits in Drosophila melanogaster. J Nanobiotechnology 2022; 20:515. [PMID: 36482441 PMCID: PMC9730587 DOI: 10.1186/s12951-022-01705-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 11/11/2022] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Nanomaterials are widely used as pesticide adjuvants to increase pesticide efficiency and minimize environmental pollution. But it is increasingly recognized that nanocarrier is a double-edged sword, as nanoparticles are emerging as new environmental pollutants. This study aimed to determine the biotoxicity of a widely applied star polycation (SPc) nanocarrier using Drosophila melanogaster, the fruit fly, as an in vivo model. RESULTS The lethal concentration 50 (LC50) value of SPc was identified as 2.14 g/L toward third-instar larvae and 26.33 g/L for adults. Chronic exposure to a sub lethal concentration of SPc (1 g/L) in the larval stage showed long-lasting adverse effects on key life history traits. Exposure to SPc at larval stage adversely impacted the lifespan, fertility, climbing ability as well as stresses resistance of emerged adults. RNA-sequencing analysis found that SPc resulted in aberrant expression of genes involved in metabolism, innate immunity, stress response and hormone production in the larvae. Orally administrated SPc nanoparticles were mainly accumulated in intestine cells, while systemic responses were observed. CONCLUSIONS These findings indicate that SPc nanoparticles are hazardous to fruit flies at multiple levels, which could help us to develop guidelines for further large-scale application.
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Affiliation(s)
- Shuo Yan
- grid.22935.3f0000 0004 0530 8290Department of Plant Biosecurity and MARA Key Laboratory of Surveillance and Management for Plant Quarantine Pests, College of Plant Protection, China Agricultural University, Beijing, 100193 China
| | - Na Li
- grid.22935.3f0000 0004 0530 8290Department of Plant Biosecurity and MARA Key Laboratory of Surveillance and Management for Plant Quarantine Pests, College of Plant Protection, China Agricultural University, Beijing, 100193 China
| | - Yuankang Guo
- grid.22935.3f0000 0004 0530 8290Department of Plant Biosecurity and MARA Key Laboratory of Surveillance and Management for Plant Quarantine Pests, College of Plant Protection, China Agricultural University, Beijing, 100193 China
| | - Yao Chen
- grid.22935.3f0000 0004 0530 8290Department of Plant Biosecurity and MARA Key Laboratory of Surveillance and Management for Plant Quarantine Pests, College of Plant Protection, China Agricultural University, Beijing, 100193 China
| | - Chendong Ji
- grid.48166.3d0000 0000 9931 8406State Key Lab of Chemical Resource Engineering, Beijing Lab of Biomedical Materials, Beijing University of Chemical Technology, Beijing, China
| | - Meizhen Yin
- grid.48166.3d0000 0000 9931 8406State Key Lab of Chemical Resource Engineering, Beijing Lab of Biomedical Materials, Beijing University of Chemical Technology, Beijing, China
| | - Jie Shen
- grid.22935.3f0000 0004 0530 8290Department of Plant Biosecurity and MARA Key Laboratory of Surveillance and Management for Plant Quarantine Pests, College of Plant Protection, China Agricultural University, Beijing, 100193 China
| | - Junzheng Zhang
- grid.22935.3f0000 0004 0530 8290Department of Plant Biosecurity and MARA Key Laboratory of Surveillance and Management for Plant Quarantine Pests, College of Plant Protection, China Agricultural University, Beijing, 100193 China
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9
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Wang Z, Li M, Kong Z, Wang E, Zhang B, Lv J, Xu X. Star Polycation Mediated dsRNA Improves the Efficiency of RNA Interference in Phytoseiulus persimilis. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12213809. [PMID: 36364584 PMCID: PMC9656875 DOI: 10.3390/nano12213809] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 10/19/2022] [Accepted: 10/25/2022] [Indexed: 05/24/2023]
Abstract
RNA interference (RNAi) is one of the most widely used techniques to study gene functions. There is still a lack of RNAi techniques that can be applied in Phytoseiidae conveniently and efficiently. Star Polycation is a new nanomaterial commonly used as a carrier of dsRNA in RNAi. Five genes of P. persimilis (PpATPb, PpATPd, PpRpL11, PpRpS2, and Pptra-2) were selected to verify whether SPc promotes the delivery of dsRNA into P. persimilis through soaking. When each of the five genes were interfered using SPc-mediated dsRNA, the total number of success offspring produced per female in six days decreased by ca. 92%, 92%, 91%, 96%, and 64%. When PpATPb, PpATPd, PpRpL11, or PpRpS2 was interfered, both the fecundity and egg hatching rate decreased. In contrast, when Pptra-2 was interfered, reduction in the reproductive capability was mainly the result of the decreased egg hatching rate. Correspondingly, when the target gene was interfered, P. persimilis expression of PpRpL11 reduced by 63.95%, while that of the other four genes reduced by at least 80%. Our studies showed that nanomaterials, such as SPc, have the potential to be used in RNA interference of phytoseiid mites.
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Affiliation(s)
- Zhenhui Wang
- Lab of Predatory Mites, Institute of Plant Protection, Chinese Academy of Agricultural Sciences (IPPCAAS), No. 2 Yuanmingyuan West Road, Haidian District, Beijing 100193, China
| | - Mingxia Li
- Lab of Predatory Mites, Institute of Plant Protection, Chinese Academy of Agricultural Sciences (IPPCAAS), No. 2 Yuanmingyuan West Road, Haidian District, Beijing 100193, China
| | - Ziyi Kong
- Lab of Predatory Mites, Institute of Plant Protection, Chinese Academy of Agricultural Sciences (IPPCAAS), No. 2 Yuanmingyuan West Road, Haidian District, Beijing 100193, China
| | - Endong Wang
- Lab of Predatory Mites, Institute of Plant Protection, Chinese Academy of Agricultural Sciences (IPPCAAS), No. 2 Yuanmingyuan West Road, Haidian District, Beijing 100193, China
| | - Bo Zhang
- Lab of Predatory Mites, Institute of Plant Protection, Chinese Academy of Agricultural Sciences (IPPCAAS), No. 2 Yuanmingyuan West Road, Haidian District, Beijing 100193, China
| | - Jiale Lv
- Lab of Predatory Mites, Institute of Plant Protection, Chinese Academy of Agricultural Sciences (IPPCAAS), No. 2 Yuanmingyuan West Road, Haidian District, Beijing 100193, China
| | - Xuenong Xu
- Lab of Predatory Mites, Institute of Plant Protection, Chinese Academy of Agricultural Sciences (IPPCAAS), No. 2 Yuanmingyuan West Road, Haidian District, Beijing 100193, China
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10
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Yan S, Hu Q, Wei Y, Jiang Q, Yin M, Dong M, Shen J, Du X. Calcium nutrition nanoagent rescues tomatoes from mosaic virus disease by accelerating calcium transport and activating antiviral immunity. FRONTIERS IN PLANT SCIENCE 2022; 13:1092774. [PMID: 36561462 PMCID: PMC9764000 DOI: 10.3389/fpls.2022.1092774] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 11/24/2022] [Indexed: 05/04/2023]
Abstract
As an essential structural, metabolic and signaling element, calcium shows low remobilization from old to young tissues in plants, restricting the nutrient-use efficiency and control efficacy against mosaic virus disease. Nanotechnology has been applied to prevent/minimize nutrient losses and improve the accessibility of poorly-available nutrients. Herein, the current study applied a star polycation (SPc) to prepare a calcium nutrition nanoagent. The SPc could assemble with calcium glycinate through hydrogen bond and Van der Waals force, forming stable spherical particles with nanoscale size (17.72 nm). Transcriptomic results revealed that the calcium glycinate/SPc complex could activate the expression of many transport-related genes and disease resistance genes in tomatoes, suggesting the enhanced transport and antiviral immunity of SPc-loaded calcium glycinate. Reasonably, the calcium transport was accelerated by 3.17 times into tomato leaves with the help of SPc, and the protective effect of calcium glycinate was remarkably improved to 77.40% and 67.31% toward tomato mosaic virus with the help of SPc after the third and fifth applications. Furthermore, SPc-loaded calcium glycinate could be applied to increase the leaf photosynthetic rate and control the unusual fast growth of tomatoes. The current study is the first success to apply nano-delivery system for enhanced calcium transport and antiviral immunity, which is beneficial for increasing nutrient-use efficiency and shows good prospects for field application.
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Affiliation(s)
- Shuo Yan
- Department of Plant Biosecurity and MARA Key Laboratory of Surveillance and Management for Plant Quarantine Pests, College of Plant Protection, China Agricultural University, Beijing, China
| | - Qian Hu
- Development Center for Science and Technology, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Ying Wei
- Department of Plant Biosecurity and MARA Key Laboratory of Surveillance and Management for Plant Quarantine Pests, College of Plant Protection, China Agricultural University, Beijing, China
| | - Qinhong Jiang
- Department of Plant Biosecurity and MARA Key Laboratory of Surveillance and Management for Plant Quarantine Pests, College of Plant Protection, China Agricultural University, Beijing, China
| | - Meizhen Yin
- State Key Laboratory of Chemical Resource Engineering, Beijing Lab of Biomedical Materials, Beijing University of Chemical Technology, Beijing, China
| | - Min Dong
- Department of Plant Biosecurity and MARA Key Laboratory of Surveillance and Management for Plant Quarantine Pests, College of Plant Protection, China Agricultural University, Beijing, China
| | - Jie Shen
- Department of Plant Biosecurity and MARA Key Laboratory of Surveillance and Management for Plant Quarantine Pests, College of Plant Protection, China Agricultural University, Beijing, China
- *Correspondence: Xiangge Du, ; Jie Shen,
| | - Xiangge Du
- Department of Plant Biosecurity and MARA Key Laboratory of Surveillance and Management for Plant Quarantine Pests, College of Plant Protection, China Agricultural University, Beijing, China
- *Correspondence: Xiangge Du, ; Jie Shen,
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