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Chen S, Yang Z, Sun W, Tian K, Sun P, Wu J. TMV-CP based rational design and discovery of α-Amide phosphate derivatives as anti plant viral agents. Bioorg Chem 2024; 147:107415. [PMID: 38701597 DOI: 10.1016/j.bioorg.2024.107415] [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: 12/20/2023] [Revised: 04/17/2024] [Accepted: 04/28/2024] [Indexed: 05/05/2024]
Abstract
The tobacco mosaic virus coat protein (TMV-CP) is indispensable for the virus's replication, movement and transmission, as well as for the host plant's immune system to recognize it. It constitutes the outermost layer of the virus particle, and serves as an essential component of the virus structure. TMV-CP is essential for initiating and extending viral assembly, playing a crucial role in the self-assembly process of Tobacco Mosaic Virus (TMV). This research employed TMV-CP as a primary target for virtual screening, from which a library of 43,417 compounds was sourced and SH-05 was chosen as the lead compound. Consequently, a series of α-amide phosphate derivatives were designed and synthesized, exhibiting remarkable anti-TMV efficacy. The synthesized compounds were found to be beneficial in treating TMV, with compound 3g displaying a slightly better curative effect than Ningnanmycin (NNM) (EC50 = 304.54 µg/mL) at an EC50 of 291.9 µg/mL. Additionally, 3g exhibited comparable inactivation activity (EC50 = 63.2 µg/mL) to NNM (EC50 = 67.5 µg/mL) and similar protective activity (EC50 = 228.9 µg/mL) to NNM (EC50 = 219.7 µg/mL). Microscale thermal analysis revealed that the binding of 3g (Kd = 4.5 ± 1.9 µM) to TMV-CP showed the same level with NNM (Kd = 5.5 ± 2.6 µM). Results from transmission electron microscopy indicated that 3g could disrupt the structure of TMV virus particles. The toxicity prediction indicated that 3g was low toxicity. Molecular docking showed that 3g interacted with TMV-CP through hydrogen bond, attractive charge interaction and π-Cation interaction. This research provided a novel α-amide phosphate structure target TMV-CP, which may help the discovery of new anti-TMV agents in the future.
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Affiliation(s)
- Shunhong Chen
- State Key Laboratory of Green Pesticide; Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Zhaokai Yang
- State Key Laboratory of Green Pesticide; Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Wei Sun
- State Key Laboratory of Green Pesticide; Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Kuan Tian
- State Key Laboratory of Green Pesticide; Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Ping Sun
- State Key Laboratory of Green Pesticide; Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Jian Wu
- State Key Laboratory of Green Pesticide; Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China.
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Wei C, Zhao C, Li J, Li C, Song B, Song R. Innovative Arylimidazole-Fused Phytovirucides via Carbene-Catalyzed [3+4] Cycloaddition: Locking Viral Cell-To-Cell Movement by Out-Competing Virus Capsid-Host Interactions. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2309343. [PMID: 38477505 PMCID: PMC11109656 DOI: 10.1002/advs.202309343] [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: 12/01/2023] [Revised: 02/22/2024] [Indexed: 03/14/2024]
Abstract
The control of potato virus Y (PVY) induced crop failure is a challengeable issue in agricultural chemistry. Although many anti-PVY agents are designed to focus on the functionally important coat protein (CP) of virus, how these drugs act on CP to inactivate viral pathogenicity, remains largely unknown. Herein, a PVY CP inhibitor -3j (S) is disclosed, which is accessed by developing unusually efficient (up to 99% yield) and chemo-selective (> 99:1 er in most cases) carbene-catalyzed [3+4] cycloaddition reactions. Compound -3j bears a unique arylimidazole-fused diazepine skeleton and shows chirality-preferred performance against PVY. In addition, -3j (S) as a mediator allows ARG191 (R191) of CP to be identified as a key amino acid site responsible for intercellular movement of virions. R191 is further demonstrated to be critical for the interaction between PVY CP and the plant functional protein NtCPIP, enabling virions to cross plasmodesmata. This key step can be significantly inhibited through bonding with the -3j (S) to further impair pathogenic behaviors involving systemic infection and particle assembly. The study reveals the in-depth mechanism of action of antiviral agents targeting PVY CP, and contributes to new drug structures and synthetic strategies for PVY management.
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Affiliation(s)
- Chunle Wei
- National Key Laboratory of Green PesticideKey Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of EducationCenter for R&D of Fine Chemicals of Guizhou UniversityGuiyang550025China
| | - Chunni Zhao
- National Key Laboratory of Green PesticideKey Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of EducationCenter for R&D of Fine Chemicals of Guizhou UniversityGuiyang550025China
| | - Jiao Li
- National Key Laboratory of Green PesticideKey Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of EducationCenter for R&D of Fine Chemicals of Guizhou UniversityGuiyang550025China
| | - Chunyi Li
- National Key Laboratory of Green PesticideKey Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of EducationCenter for R&D of Fine Chemicals of Guizhou UniversityGuiyang550025China
| | - Baoan Song
- National Key Laboratory of Green PesticideKey Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of EducationCenter for R&D of Fine Chemicals of Guizhou UniversityGuiyang550025China
| | - Runjiang Song
- National Key Laboratory of Green PesticideKey Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of EducationCenter for R&D of Fine Chemicals of Guizhou UniversityGuiyang550025China
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Zhao G, Zhang W, Fu X, Xie X, Bai S, Li X. Synthesis and Screening of Chemical Agents Targeting Viral Protein Genome-Linked Protein of Telosma Mosaic Virus. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:13645-13653. [PMID: 37676131 DOI: 10.1021/acs.jafc.3c02823] [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: 09/08/2023]
Abstract
The viral protein genome-linked protein (VPg) of telosma mosaic virus (TeMV) plays an important role in viral reproduction. In this study, the expression conditions of TeMV VPg were explored. A series of novel benzenesulfonamide derivatives were synthesized. The binding sites of the target compounds and TeMV VPg were studied by molecular docking, and the interaction was verified by microscale thermophoresis. The study revealed that the optimal expression conditions for TeMV VPg were in Escherichia coli Rosetta with IPTG concentration of 0.8 mM and induction temperature of 25 °C. Compounds A4, A6, A9, A16, and A17 exhibited excellent binding affinity to TeMV VPg, with Kd values of 0.23, 0.034, 0.19, 0.086, and 0.22 μM, respectively. LYS 121 is the key amino acid site. Compounds A9 inhibited the expression of TeMV VPg in Nicotiana benthamiana. The results suggested that TeMV VPg is a potential antiviral target to screen anti-TeMV compounds.
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Affiliation(s)
- Guili Zhao
- School of Chemical Engineering, Guizhou Institute of Technology, Guiyang 550025, China
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China
| | - Wenjuan Zhang
- School of Chemical Engineering, Guizhou Institute of Technology, Guiyang 550025, China
| | - Xiaodong Fu
- Key Laboratory of Agricultural Microbiology, College of Agriculture, Guizhou University, Guiyang 550025, China
| | - Xin Xie
- Key Laboratory of Agricultural Microbiology, College of Agriculture, Guizhou University, Guiyang 550025, China
| | - Song Bai
- School of Chemical Engineering, Guizhou Institute of Technology, Guiyang 550025, China
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China
- Guizhou Industry Polytechnic College, Guiyang 550008, China
| | - Xiangyang Li
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China
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Luo W, Wang K, Luo J, Liu Y, Tong J, Qi M, Jiang Y, Wang Y, Ma Z, Feng J, Lei B, Yan H. Limonene anti-TMV activity and its mode of action. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2023; 194:105512. [PMID: 37532363 DOI: 10.1016/j.pestbp.2023.105512] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 06/23/2023] [Accepted: 06/27/2023] [Indexed: 08/04/2023]
Abstract
The main component of orange peel essential oil is limonene. Limonene is a natural active monoterpene with multiple functions, such as antibacterial, antiseptic and antitumor activity, and has important development value in agriculture. This study found that limonene exhibited excellent anti-tobacco mosaic virus (TMV) bioactivity, with results showing that its protection activity, inactivation activity, and curative activity at 800 μg/mL were 84.93%, 59.28%, and 58.89%, respectively-significantly higher than those of chito-oligosaccharides. A direct effect of limonene on TMV particles was not observed, but limonene triggered the hypersensitive response (HR) in tobacco. Further determination of the induction activity of limonene against TMV demonstrated that it displayed good induction activity at 800 μg/mL, with a value of 60.59%. The results of physiological and biochemical experiments showed that at different treatment days, 800 μg/mL limonene induced the enhancement of defense enzymes activity in tobacco, including of SOD, CAT, POD, and PAL, which respectively increased by 3.2, 4.67, 4.12, and 2.33 times compared with the control (POD and SOD activities reached highest on the seventh day, and PAL and CAT activities reached highest on the fifth day). Limonene also enhanced the relative expression levels of pathogenesis related (PR) genes, including NPR1, PR1, and PR5, which were upregulated 3.84-fold, 1.86-fold and 1.71-fold, respectively. Limonene induced the accumulation of salicylic acid (SA), and increased the relative expression levels of genes related to SA biosynthesis (PAL) and reactive oxygen species (ROS) burst (RBOHB), which respectively increased by 2.76 times and 4.23 times higher than the control. Systemic acquired resistance (SAR) is an important plant immune defense against pathogen infection. The observed accumulation of SA, the enhancement of defense enzymes activity and the high-level expression of defense-related genes suggested that limonene may induce resistance to TMV in tobacco by activating SAR mediated by the SA signaling pathway. Furthermore, the experimental results demonstrated that the expression level of the chlorophyll biosynthesis gene POR1 was increased 1.72-fold compared to the control in tobacco treated with 800 μg/mL limonene, indicating that limonene treatment may increase chlorophyll content in tobacco. The results of pot experiment showed that 800 μg/mL limonene induced plant resistance against Sclerotinia sclerotiorum (33.33%), Phytophthora capsici (54.55%), Botrytis cinerea (50.00%). The bioassay results indicated that limonene provided broad-spectrum and long-lasting resistance to pathogen infection. Therefore, limonene has good development and utilization value, and is expected to be developed into a new botanical-derived anti-virus agent and plant immunity activator in addition to insecticides and fungicides.
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Affiliation(s)
- Wei Luo
- College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China; Provincial Center for Bio-Pesticide Engineering, Yangling, Shaanxi 712100, China
| | - Kaiyue Wang
- College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China; Provincial Center for Bio-Pesticide Engineering, Yangling, Shaanxi 712100, China
| | - Jingyi Luo
- College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China; Provincial Center for Bio-Pesticide Engineering, Yangling, Shaanxi 712100, China
| | - Yingchen Liu
- College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China; Provincial Center for Bio-Pesticide Engineering, Yangling, Shaanxi 712100, China
| | - Jiawen Tong
- College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China; Provincial Center for Bio-Pesticide Engineering, Yangling, Shaanxi 712100, China
| | - Mengting Qi
- College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China; Provincial Center for Bio-Pesticide Engineering, Yangling, Shaanxi 712100, China
| | - Yue Jiang
- College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China; Provincial Center for Bio-Pesticide Engineering, Yangling, Shaanxi 712100, China
| | - Yong Wang
- College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China; Provincial Center for Bio-Pesticide Engineering, Yangling, Shaanxi 712100, China
| | - Zhiqing Ma
- College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China; Provincial Center for Bio-Pesticide Engineering, Yangling, Shaanxi 712100, China
| | - Juntao Feng
- College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China; Provincial Center for Bio-Pesticide Engineering, Yangling, Shaanxi 712100, China
| | - Bin Lei
- Institute of Nuclear Technology and Biotechnology, Xinjiang Academy of Agricultural Sciences, Key Laboratory of Crop Ecophysiology and Fanning System in Desert Oasis Region, Ministry of Agricultural and Rural Affairs, Urumqi 830091, China
| | - He Yan
- College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China; Provincial Center for Bio-Pesticide Engineering, Yangling, Shaanxi 712100, China.
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Wang C, Ma G, Zhang S, Zhao K, Li X. Study on the binding of ningnanmycin to the helicase of Tobamovirus virus. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2023; 194:105494. [PMID: 37532353 DOI: 10.1016/j.pestbp.2023.105494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 06/04/2023] [Accepted: 06/07/2023] [Indexed: 08/04/2023]
Abstract
The Tobamovirus helicase plays an important role in virus proliferation and host interaction. They can also be targets for antiviral drugs. Tobacco mosaic virus (TMV) is well controlled by ningnanmycin (NNM), but whether it acts on other virus helicases of Tobamovirus virus is not clear. In this study, we expressed and purified several Tobamovirus virus helicase proteins and analyzed the three-dimensional structures of several Tobamovirus virus helicases. In addition, the binding of Tobamovirus helicase to NNM was also studied. The docking study reveals the interaction between NNM and Tobamovirus virus helicase. Microscale Thermophoresis (MST) experiments have shown that NNM binds to Tobamovirus helicase with a dissociation constant of 4.64-12.63 μM. Therefore, these data are of great significance for the design and synthesis of new effective anti-plant virus drugs.
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Affiliation(s)
- Chen Wang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China
| | - Guangming Ma
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China
| | - Shanqi Zhang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China
| | - Kunhong Zhao
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China
| | - Xiangyang Li
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China.
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Zhu HX, Hu LF, Hu HY, Zhou F, Wu LL, Wang SW, Rozhkova T, Li CW. Identification of a Novel Streptomyces sp. Strain HU2014 Showing Growth Promotion and Biocontrol Effect Against Rhizoctonia spp. in Wheat. PLANT DISEASE 2023; 107:1139-1150. [PMID: 36190299 DOI: 10.1094/pdis-06-22-1493-re] [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: 06/16/2023]
Abstract
Wheat sharp eyespot is a serious disease caused by the phytopathogens Rhizoctonia cerealis and R. solani. Some species in the genus Streptomyces have been identified as potential biocontrol agents against phytopathogens. In this investigation, the physiological, biochemical, phylogenetic, and genomic characteristics of strain HU2014 indicate that it is a novel Streptomyces sp. most closely related to Streptomyces albireticuli. Strain HU2014 exhibited strong antifungal activity against R. cerealis G11 and R. solani YL-3. Ultraperformance liquid chromatography-mass spectrometry on the four extracts from the extracellular filtrate of strain HU2014 identified 10 chemical constituents in the Natural Products Atlas with high match levels (more than 90%). In an antifungal efficiency test on wheat sharp eyespot, two extracts significantly reduced the lesion areas on bean leaves infected by R. solani YL-3. The drenching of wheat in pots with spore suspension of strain HU2014 demonstrated a control efficiency of 65.1% against R. cerealis G11 (compared with 66.9% when treated by a 30% hymexazol aqueous solution). Additionally, in vitro and pot experiments demonstrated that strain HU2014 can produce indoleacetic acid, siderophores, extracellular enzymes, and solubilized phosphate, and it can promote plant growth. We conclude that strain HU2014 could be a valuable microbial resource for growth promotion of wheat and biological control of wheat sharp eyespot.
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Affiliation(s)
- Hong-Xia Zhu
- College of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang, China
- Henan Engineering Research of Crop Genome Editing, Xinxiang, China
- Henan International Joint Laboratory of Plant Genetic Improvement and Soil Remediation, Xinxiang, China
- Sumy National Agrarian University, Sumy, Ukraine
| | - Lin-Feng Hu
- College of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang, China
| | - Hai-Yan Hu
- Henan Engineering Research of Crop Genome Editing, Xinxiang, China
- Henan International Joint Laboratory of Plant Genetic Improvement and Soil Remediation, Xinxiang, China
| | - Feng Zhou
- Henan Engineering Research of Crop Genome Editing, Xinxiang, China
- Henan International Joint Laboratory of Plant Genetic Improvement and Soil Remediation, Xinxiang, China
| | - Liu-Liu Wu
- Henan Engineering Research of Crop Genome Editing, Xinxiang, China
- Henan International Joint Laboratory of Plant Genetic Improvement and Soil Remediation, Xinxiang, China
- Sumy National Agrarian University, Sumy, Ukraine
| | - Shi-Wen Wang
- College of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang, China
| | | | - Cheng-Wei Li
- Henan University of Technology, Zhengzhou, China
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Wang C, Yan Y, Huang M, Ma G, Wang L, Xie X, Xue W, Li X. Myricetin Derivative LP11 Targets Cucumber Mosaic Virus 2b Protein to Achieve In Vivo Antiviral Activity in Plants. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:15360-15370. [PMID: 36448924 DOI: 10.1021/acs.jafc.2c05536] [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: 06/17/2023]
Abstract
Cucumber mosaic virus (CMV) 2b protein plays a key role in the process of CMV infecting plants and symptom formation and is a potential molecular target for the control of this important plant virus. The exploitation of antiviral compounds is one of the strategies with the highest input: output ratio in plant protection. In this study, the CMV 2b recombinant protein was cloned, purified, and identified as the target protein by mass spectrometry. Subsequently, we carried out preliminary functional screening of the LP series of myricetin derivatives designed and synthesized in our laboratory and commercial antiviral compounds by microscale thermophoresis (MST), which showed that LP compounds LP4, LP11, LP13, and LP20 interacted well with CMV 2b, with dissociation constant (Kd) values of 1.39, 0.88, 1.52, and 1.77 μM, respectively. Among the commercially available antiviral compounds, ningnanmycin (NNM) was the most active, with a Kd value of 4.09 μM. Then, the strongest binding force to CMV 2b was identified to be from LP11 by isothermal titration calorimetry (ITC) experiments, with a Kd of 1.19 μM. Among the commercial compounds, NNM had the strongest binding force with CMV 2b, with a Kd of 4.62 μM. Through the screening of commercial compounds and LP series compounds by MST and ITC, LP11, NNM (positive control), LP16 (negative control), and the blank control group were selected to test the in vivo impact of LP11 on CMV. Specifically, the screened compounds were sprayed onto CMV-inoculated Nicotiana benthamiana plants to determine their impact on the regulation of CMV pathogenic gene expression, symptoms, and virus titer. The results showed that LP11 had a strong ability to inhibit CMV infection of tobacco at the transcriptional and translational levels. By mutating the CMV 2b protein, the 15th amino acid leucine and the 18th amino acid methionine at the N-terminal region were shown to be potential sites for binding to compound LP11. This finding provided a theoretical basis for screening and developing anti-CMV agents.
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Affiliation(s)
- Chen Wang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, PR China
| | - Yunlong Yan
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, PR China
| | - Min Huang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, PR China
| | - Guangming Ma
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, PR China
| | - Li Wang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, PR China
- Department of Plant Pathology, College of Agriculture, Guizhou University, Huaxi District, Guiyang 550025, PR China
| | - Xin Xie
- Department of Plant Pathology, College of Agriculture, Guizhou University, Huaxi District, Guiyang 550025, PR China
| | - Wei Xue
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, PR China
| | - Xiangyang Li
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, PR China
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Zhang C, Wang D, Li W, Zhang B, Abdel-Fattah Ouf GM, Su X, Li J. The coat protein p25 from maize chlorotic mottle virus involved in symptom development and systemic movement of tobacco mosaic virus hybrids. Front Microbiol 2022; 13:951479. [PMID: 35992724 PMCID: PMC9389212 DOI: 10.3389/fmicb.2022.951479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 07/14/2022] [Indexed: 11/13/2022] Open
Abstract
Viral coat protein (CP) has numerous critical functions in plant infection, but little is known about p25, the CP of maize chlorotic mottle virus (MCMV; Machlomovirus), which causes severe yield losses in maize worldwide. Here, we investigated the roles of p25 in pathogenicity and systemic movement, as well as potential interactions with host plants, using a hybrid tobacco mosaic virus (TMV)-based expression system. Highly conserved protein p25 is predicted to contain a membrane-anchored nuclear localization signal (NLS) sequence and an extracellular sequence. In transgenic Nicotiana benthamiana plants containing the movement protein (MP) of TMV (TMV-MP), p25 induced severe symptoms, including dwarf and foliar necrosis, and was detected in inoculated and non-inoculated leaves. After the deletion of NLS from nuclear-located p25, the protein was found throughout the host cell, and plant stunting and starch granule deformity were reduced. Systemic movement and pathogenicity were significantly impaired when the C-terminal regions of p25 were absent. Using virus-induced gene silencing (VIGS), the transcript level of heat shock protein HSP90 was distinctly lower in host plants in association with the absence of leaf necrosis induced by TMV-p25. Our results revealed crucial roles for MCMV p25 in viral pathogenicity, long-distance movement, and interactions with N. benthamiana.
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Affiliation(s)
- Chao Zhang
- State Key Laboratory of North China Crop Improvement and Regulation, College of Life Sciences, Hebei Agricultural University, Baoding, China
| | - Di Wang
- Center for Advanced Measurement Science, National Institute of Metrology, Beijing, China
| | - Weimin Li
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Baolong Zhang
- Excellence and Innovation Center, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Gamal M. Abdel-Fattah Ouf
- Department of Botany and Applied Microbiology, Faculty of Science, Mansoura University, Mansoura, Egypt
| | - Xiaofeng Su
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jun Li
- State Key Laboratory of North China Crop Improvement and Regulation, College of Life Sciences, Hebei Agricultural University, Baoding, China
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Xu F, Guo S, Zhang W, Wang Y, Wei P, Chen S, Wu J. Trifluoromethylpyridine thiourea derivatives: design, synthesis and inhibition of the self-assembly of tobacco mosaic virus particles. PEST MANAGEMENT SCIENCE 2022; 78:1417-1427. [PMID: 34908221 DOI: 10.1002/ps.6758] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 12/04/2021] [Accepted: 12/15/2021] [Indexed: 06/14/2023]
Abstract
BACKGROUND Devastating plant virus diseases leading to bad harvests and lower quality of crops have made feeding the beyond seven billion population a huge challenge. Nevertheless, growing resistance and cross resistance of crop protection agents have made this challenge harder. Therefore, an efficient crop protection agent with novel structure and mode of action showing higher efficiency and eco-friendly is urgently needed. RESULTS The coat protein (CP) of a virus is a potential target for the discovery of new antiviral agents. Antiviral molecules can inhibit infection by obstructing the assembly of virus particles. A series of novel phthalamide-like thiourea derivatives containing trifluoromethylpyridine was designed and synthesized. Most of the compounds exhibited good antiviral activity against tobacco mosaic virus (TMV). Compound 7b showed notable curative, protective and inactivation activities against TMV. Its inactivation half-maximal effective concentration (EC50 ) value (20.5 μg mL-1 ) was better even than commercial ningnanmycin (23.2 μg mL-1 ). Compound 7b also had stronger TMV-CP binding ability than ningnanmycin and destroyed the external shape of TMV particles and hindered the self-assembly of TMV-CP and TMV-RNA. CONCLUSION These phthalamide-like thiourea derivatives especially compound 7b containing trifluoromethylpyridine are potential lead compounds and inhibitors of TMV particle self-assembly. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Fangzhou Xu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Shengxin Guo
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Wei Zhang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Yanyan Wang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Panpan Wei
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Shunhong Chen
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
| | - Jian Wu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, China
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10
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Yan Y, Huang M, Wang L, Xue W, Xie X, Li X. Insights into a rapid screening method for anti-cucumber mosaic virus compounds. J Virol Methods 2022; 301:114402. [PMID: 34871628 DOI: 10.1016/j.jviromet.2021.114402] [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: 07/02/2021] [Revised: 10/09/2021] [Accepted: 12/02/2021] [Indexed: 11/18/2022]
Abstract
Cucumber mosaic virus (CMV) is a detrimental plant virus in agricultural production. Traditionally, the half-leaf method using Nicotiana glutinosa has been used for screening agrochemicals to control CMV. However, this forms a time-consuming experimental bottleneck. In this study, we constructed a rapid screening model for anti-CMV compounds using CMV. In short, purified CMV particles were labeled through amine reactions and then subjected to binding studies with commercial compounds. The relative gene expression levels were then confirmed. Additionally, the rapid screening model results were verified using synthesized compounds. The commercial compounds ningnanmycin, ribavirin, and moroxydine hydrochloride bound to CMV with dissociation constants of 0.012, 2.870, and 0.069 μM, respectively, and they significantly inhibited expression of the gene for the CMV coat protein in CMV-infected tobacco leaves. This rapid screening model was assessed using our synthetic compounds N12, N16, and N18 through binding, which were shown to have dissociation constants 0.008, 0.025, and 70.800 μM, respectively, as well as via gene expression studies. Thus, a rapid method for screening anti-CMV commercial compounds and our synthetic compounds was constructed and confirmed.
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Affiliation(s)
- Yunlong Yan
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, PR China; College of Agriculture, Guizhou University, Guiyang 550025, PR China
| | - Maoxi Huang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, PR China
| | - Li Wang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, PR China; College of Agriculture, Guizhou University, Guiyang 550025, PR China
| | - Wei Xue
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, PR China
| | - Xin Xie
- College of Agriculture, Guizhou University, Guiyang 550025, PR China.
| | - Xiangyang Li
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, PR China.
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11
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Iobbi V, Lanteri AP, Minuto A, Santoro V, Ferrea G, Fossa P, Bisio A. Autoxidation Products of the Methanolic Extract of the Leaves of Combretum micranthum Exert Antiviral Activity against Tomato Brown Rugose Fruit Virus (ToBRFV). Molecules 2022; 27:760. [PMID: 35164024 PMCID: PMC8838289 DOI: 10.3390/molecules27030760] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 01/17/2022] [Accepted: 01/21/2022] [Indexed: 12/24/2022] Open
Abstract
Tomato brown rugose fruit virus (ToBRFV) is a new damaging plant virus of great interest from both an economical and research point of view. ToBRFV is transmitted by contact, remains infective for months, and to-date, no resistant cultivars have been developed. Due to the relevance of this virus, new effective, sustainable, and operator-safe antiviral agents are needed. Thus, 4-hydroxybenzoic acid was identified as the main product of the alkaline autoxidation at high temperature of the methanolic extract of the leaves of C. micranthum, known for antiviral activity. The autoxidized extract and 4-hydroxybenzoic acid were assayed in in vitro experiments, in combination with a mechanical inoculation test of tomato plants. Catechinic acid, a common product of rearrangement of catechins in hot alkaline solution, was also tested. Degradation of the viral particles, evidenced by the absence of detectable ToBRFV RNA and the loss of virus infectivity, as a possible consequence of disassembly of the virus coat protein (CP), were shown. Homology modeling was then applied to prepare the protein model of ToBRFV CP, and its structure was optimized. Molecular docking simulation showed the interactions of the two compounds, with the amino acid residues responsible for CP-CP interactions. Catechinic acid showed the best binding energy value in comparison with ribavirin, an anti-tobamovirus agent.
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Affiliation(s)
- Valeria Iobbi
- Department of Pharmacy, University of Genova, Viale Cembrano 4, 16148 Genova, Italy; (V.I.); (P.F.)
| | - Anna Paola Lanteri
- CeRSAA—Centro di Sperimentazione e Assistenza Agricola, Regione Rollo 98, 17031 Albenga, Italy; (A.P.L.); (A.M.)
| | - Andrea Minuto
- CeRSAA—Centro di Sperimentazione e Assistenza Agricola, Regione Rollo 98, 17031 Albenga, Italy; (A.P.L.); (A.M.)
| | - Valentina Santoro
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Salerno, Italy;
| | - Giuseppe Ferrea
- Azienda Sanitaria Locale 1, Regione Liguria, Via Aurelia 97, Bussana, 18038 Sanremo, Italy;
| | - Paola Fossa
- Department of Pharmacy, University of Genova, Viale Cembrano 4, 16148 Genova, Italy; (V.I.); (P.F.)
| | - Angela Bisio
- Department of Pharmacy, University of Genova, Viale Cembrano 4, 16148 Genova, Italy; (V.I.); (P.F.)
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12
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Zhou S, Huang G, Chen G. Synthesis and anti-tumor activity of marine alkaloids. Bioorg Med Chem Lett 2021; 41:128009. [DOI: 10.1016/j.bmcl.2021.128009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 03/20/2021] [Accepted: 03/28/2021] [Indexed: 12/16/2022]
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13
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Zhang J, He F, Chen J, Wang Y, Yang Y, Hu D, Song B. Purine Nucleoside Derivatives Containing a Sulfa Ethylamine Moiety: Design, Synthesis, Antiviral Activity, and Mechanism. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:5575-5582. [PMID: 33988985 DOI: 10.1021/acs.jafc.0c06612] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
To find efficient and broad-spectrum viral agents, a series of purine nucleoside derivatives containing sulfa ethylamine moieties was designed and synthesized, and their antiviral activities against tobacco mosaic virus (TMV), cucumber mosaic virus (CMV), and potato virus Y (PVY) were evaluated. Some target compounds displayed good antiviral activities. Among them, compound 3 showed excellent protective activity against CMV and PVY with 50% effective concentration values (EC50) of 137 and 209 μg/mL, respectively, which were better than that of the control agent ningnanmycin (508 and 431 μg/mL). Moreover, the EC50 value of compound 3 for the inactivating activity against TMV was 48 μg/mL, which was better than that of ningnanmycin (88 μg/mL). In addition, compound 3 not only destroyed the structure of the TMV virus but also had a good interaction with the coat protein of the TMV virus. Therefore, compound 3 may further destroy the structure of the virus by binding to the coat protein of the TMV virus, thereby weakening the infectivity of the virus.
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Affiliation(s)
- Jian Zhang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, P. R. China
| | - Fangcheng He
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, P. R. China
| | - Jixiang Chen
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, P. R. China
| | - Yanju Wang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, P. R. China
| | - Yuyuan Yang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, P. R. China
| | - Deyu Hu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, P. R. China
| | - Baoan Song
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, P. R. China
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14
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Liu H, Zhao X, Yu M, Meng L, Zhou T, Shan Y, Liu X, Xia Z, An M, Wu Y. Transcriptomic and Functional Analyses Indicate Novel Anti-viral Mode of Actions on Tobacco Mosaic Virus of a Microbial Natural Product ε-Poly-l-lysine. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:2076-2086. [PMID: 33586965 DOI: 10.1021/acs.jafc.0c07357] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Novel anti-viral natural product ε-poly-l-lysine (ε-PL) produced by Streptomyces is a homopolymer of l-lysine, of which the underlying molecular mode of action remains to be further elucidated. In this study, ε-PL induced significant fragmentation of tobacco mosaic virus (TMV) virions and delayed the systemic infection of TMV-GFP as well as wild-type TMV in plants. ε-PL treatment also markedly inhibited RNA accumulation of TMV in tobacco BY-2 protoplasts. The results of RNA-seq indicated that the agent induced significantly differential expression of genes that are associated with defense response, stress response, autophagy, and ubiquitination. Among them, 15 critical differential expressed genes were selected for real-time quantitative PCR validation. We further demonstrated that ε-PL can induce host defense responses by assessing the activity of several defense-related enzymes in plants. Our results provided valuable insights into molecular anti-viral mode of action for ε-PL, which is expected to be applied as a novel microbial natural product against plant virus diseases.
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Affiliation(s)
- He Liu
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, Liaoning, China
| | - Xiuxiang Zhao
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, Liaoning, China
| | - Miao Yu
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, Liaoning, China
| | - Lingxue Meng
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, Liaoning, China
| | - Tao Zhou
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, Liaoning, China
| | - Yuhang Shan
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, Liaoning, China
| | - Xiaoying Liu
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, Liaoning, China
| | - Zihao Xia
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, Liaoning, China
| | - Mengnan An
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, Liaoning, China
| | - Yuanhua Wu
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, Liaoning, China
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15
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Adeel M, Farooq T, White JC, Hao Y, He Z, Rui Y. Carbon-based nanomaterials suppress tobacco mosaic virus (TMV) infection and induce resistance in Nicotiana benthamiana. JOURNAL OF HAZARDOUS MATERIALS 2021; 404:124167. [PMID: 33049632 DOI: 10.1016/j.jhazmat.2020.124167] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 09/22/2020] [Accepted: 09/29/2020] [Indexed: 06/11/2023]
Abstract
Although nanomaterials (NMs) may inhibit viral pathogens, the mechanisms governing plant-virus-nanomaterial interactions remain unknown. Nicotiana benthamiana plants were treated with nanoscale titanium dioxide (TiO2) and silver (Ag), C60 fullerenes, and carbon nanotubes (CNTs) at 100, 200 and 500 mg L-1 for a 21-day foliar exposure before inoculation with GFP-tagged tobacco mosaic virus (TMV). Plants treated with CNTs and C60 (200 mg L-1) exhibited normal phenotype and viral symptomology was not evident at 5 days post-infection. TiO2 and Ag failed to suppress viral infection. RT-qPCR analysis revealed that viral coat protein transcript abundance and GFP mRNA expression were reduced 74-81% upon CNTs and C60 treatment. TEM revealed that the chloroplast ultrastructure in carbon NM-treated plants was unaffected by TMV infection. Fluorescence measurement of CNTs and C60 (200 mg L-1) treated plants indicated photosynthesis equivalent to healthy controls. CNTs and C60 induced upregulation of the defense-related phytohormones abscisic acid and salicylic acid by 33-52%; the transcription of genes responsible for phytohormone biosynthesis was elevated by 94-104% in treated plants. Our findings demonstrate the protective role of carbon-based NMs, with suppression of TMV symptoms via hindered physical movement and viral replication. Given the lack of viral phytopathogen treatment options, this work represents a novel area of nano-enabled agriculture.
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Affiliation(s)
- Muhammad Adeel
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation and College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, PR China
| | - Tahir Farooq
- Plant Protection Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, PR China; Guangdong Provincial Key Laboratory of High Technology for Plant Protection, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, PR China
| | - Jason C White
- Department of Analytical Chemistry, The Connecticut Agricultural Experiment Station, New Haven, CT 06504, United States.
| | - Yi Hao
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation and College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, PR China
| | - Zifu He
- Plant Protection Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, PR China; Guangdong Provincial Key Laboratory of High Technology for Plant Protection, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, PR China
| | - Yukui Rui
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation and College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, PR China.
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16
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Zhou X, Ye Y, Liu S, Shao W, Liu L, Yang S, Wu Z. Design, synthesis and anti-TMV activity of novel α-aminophosphonate derivatives containing a chalcone moiety that induce resistance against plant disease and target the TMV coat protein. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2021; 172:104749. [PMID: 33518042 DOI: 10.1016/j.pestbp.2020.104749] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 11/08/2020] [Accepted: 11/11/2020] [Indexed: 05/24/2023]
Abstract
Plant viral diseases, known as "plant cancer", with high contagiosity can substantially reduce crop quality and yield. To identify potential anti-tobacco mosaic virus (TMV) agents with different mechanisms, a series of novel α-aminophosphonate derivatives containing a chalcone moiety were designed and synthesized. Bioassay results revealed that some target compounds exhibited improved curative activity against TMV in vivo, and the EC50 value of compound B3 was 356.7 mg L-1. The activities of the defensive enzymes POD and CAT from tobacco leaves treated with B3 and B17 showed that these target compounds could improve the photosynthetic ability of the leaves and activate plant host resistance against TMV infection. The binding constant between B3 and TMV Coat Protein (CP) (2.51 × 108 M-1), calculated by the fluorescence titration experiment and docking results, revealed that B3 has a strong interaction with TMV CP. Further docking analysis revealed that B3 was embedded between two layers of the TMV CP, which was consistent with the 2:1 binding mode of TMV CP and B3 determined by the binding affinity experiment. The TEM morphological study of TMV treated with B3 and B17 indicated that this series of target compounds may trigger the disassembly of TMV by interacting directly with TMV CP. This study provides new insight for the discovery of antiviral compounds with two different mechanisms of action.
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Affiliation(s)
- Xiang Zhou
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R & D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Yiqiang Ye
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R & D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Shasha Liu
- Guizhou University Medical college, Guiyang 550025, China
| | - Wubin Shao
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R & D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Liwei Liu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R & D of Fine Chemicals of Guizhou University, Guiyang 550025, China
| | - Song Yang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R & D of Fine Chemicals of Guizhou University, Guiyang 550025, China.
| | - Zhibing Wu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R & D of Fine Chemicals of Guizhou University, Guiyang 550025, China.
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17
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Chanda B, Shamimuzzaman M, Gilliard A, Ling KS. Effectiveness of disinfectants against the spread of tobamoviruses: Tomato brown rugose fruit virus and Cucumber green mottle mosaic virus. Virol J 2021; 18:7. [PMID: 33407624 PMCID: PMC7787650 DOI: 10.1186/s12985-020-01479-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 12/21/2020] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Tobamoviruses, including tomato brown rugose fruit virus (ToBRFV) on tomato and pepper, and cucumber green mottle mosaic virus (CGMMV) on cucumber and watermelon, have caused many disease outbreaks around the world in recent years. With seed-borne, mechanical transmission and resistant breaking traits, tobamoviruses pose serious threat to vegetable production worldwide. With the absence of a commercial resistant cultivar, growers are encouraged to take preventative measures to manage those highly contagious viral diseases. However, there is no information available on which disinfectants are effective to deactivate the virus infectivity on contaminated hands, tools and equipment for these emerging tobamoviruses. The purpose of this study was to evaluate a collection of 16 chemical disinfectants for their effectiveness against mechanical transmission of two emerging tobamoviruses, ToBRFV and CGMMV. METHODS Bioassay was used to evaluate the efficacy of each disinfectant based on virus infectivity remaining in a prepared virus inoculum after three short exposure times (10 s, 30 s and 60 s) to the disinfectant and inoculated mechanically on three respective test plants (ToBRFV on tomato and CGMMV on watermelon). Percent infection of plants was measured through symptom observation on the test plants and the presence of the virus was confirmed through an enzyme-linked immunosorbent assay with appropriate antibodies. Statistical analysis was performed using one-way ANOVA based on data collected from three independent experiments. RESULTS Through comparative analysis of percent infection of test plants, a similar trend of efficacy among 16 disinfectants was observed between the two pathosystems. Four common disinfectants with broad spectrum activities against two different tobamoviruses were identified. Those effective disinfectants with 90-100% efficacy against both tobamoviruses were 0.5% Lactoferrin, 2% Virocid, and 10% Clorox, plus 2% Virkon against CGMMV and 3% Virkon against ToBRFV. In addition, SP2700 generated a significant effect against CGMMV, but poorly against ToBRFV. CONCLUSION Identification of common disinfectants against ToBRFV and CGMMV, two emerging tobamoviruses in two different pathosystems suggest their potential broader effects against other tobamoviruses or even other viruses.
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Affiliation(s)
- Bidisha Chanda
- United States Department of Agriculture - Agricultural Research Service, U.S. Vegetable Laboratory, Charleston, SC, 29414, USA
| | - Md Shamimuzzaman
- United States Department of Agriculture - Agricultural Research Service, U.S. Vegetable Laboratory, Charleston, SC, 29414, USA
- USDA-Agricultural Research Service, Edward T. Schafer Agricultural Research Center, Fargo, ND, 58102-2765, USA
| | - Andrea Gilliard
- United States Department of Agriculture - Agricultural Research Service, U.S. Vegetable Laboratory, Charleston, SC, 29414, USA
| | - Kai-Shu Ling
- United States Department of Agriculture - Agricultural Research Service, U.S. Vegetable Laboratory, Charleston, SC, 29414, USA.
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18
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Tan QW, Ni JC, Shi JT, Zhu JX, Chen QJ. Two Novel Quassinoid Glycosides with Antiviral Activity from the Samara of Ailanthus altissima. Molecules 2020; 25:E5679. [PMID: 33276431 PMCID: PMC7730543 DOI: 10.3390/molecules25235679] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 11/28/2020] [Accepted: 11/30/2020] [Indexed: 02/06/2023] Open
Abstract
Phytochemistry investigations on Ailanthus altissima (Mill.) Swingle, a Simaroubaceae plant that is recognized as a traditional herbal medicine, have afforded various natural products, among which C20 quassinoid is the most attractive for their significant and diverse pharmacological and biological activities. Our continuous study has led to the isolation of two novel quassinoid glycosides, named chuglycosides J and K, together with fourteen known lignans from the samara of A. altissima. The new structures were elucidated based on comprehensive spectra data analysis. All of the compounds were evaluated for their anti-tobacco mosaic virus activity, among which chuglycosides J and K exhibited inhibitory effects against the virus multiplication with half maximal inhibitory concentration (IC50) values of 56.21 ± 1.86 and 137.74 ± 3.57 μM, respectively.
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Affiliation(s)
- Qing-Wei Tan
- Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (J.-T.S.); (J.-X.Z.)
| | - Jian-Cheng Ni
- The Engineering Technology Research Center of Characteristic Medicinal Plants of Fujian, Ningde Normal University, Ningde 352100, China;
| | - Jian-Ting Shi
- Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (J.-T.S.); (J.-X.Z.)
| | - Jian-Xuan Zhu
- Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (J.-T.S.); (J.-X.Z.)
| | - Qi-Jian Chen
- Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (J.-T.S.); (J.-X.Z.)
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19
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Cai L, Zhang W, Jia H, Feng H, Wei X, Chen H, Wang D, Xue Y, Sun X. Plant-derived compounds: A potential source of drugs against Tobacco mosaic virus. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2020; 169:104589. [PMID: 32828361 DOI: 10.1016/j.pestbp.2020.104589] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 03/16/2020] [Accepted: 04/17/2020] [Indexed: 06/11/2023]
Abstract
Tobacco mosaic virus (TMV) is an important plant virus that led to significant losses in the crops worldwide. In this study, the antiviral activities of Ursolic Acid (UA) and 4-methoxycoumarin against TMV and their underlying mechanisms were initially investigated for the first time. The results demonstrated that the antiviral effects of UA and 4-methoxycoumarin were as effective as those of the commercial agent lentinan, in either the protective effect, inactivation effect or curative effect. In addition, both plant-derived compounds could induce the resistance responses of tobacco plants against TMV, showing increased antioxidant enzyme activities (SOD and POD) and H2O2 accumulation in tobacco leaves after treatment with UA or 4-methoxycoumarin, along with highly expressed regulatory and defence genes in the salicylic acid signaling pathway. Meanwhile, electrolyte leakage and malondialdehyde experiments indicated that these effects did not result in phytotoxicity or damage to the leaf plasma membrane of tobacco plants. Collectively, the results demonstrate that UA and 4-methoxycoumarin have potential as eco-friendly and safe strategies to control TMV in the future.
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Affiliation(s)
- Lin Cai
- College of Plant Protection, Southwest University, Chongqing 400715, China
| | - Wang Zhang
- College of Plant Protection, Southwest University, Chongqing 400715, China
| | - Huanyu Jia
- College of Plant Protection, Southwest University, Chongqing 400715, China
| | - Hui Feng
- College of Plant Protection, Southwest University, Chongqing 400715, China
| | - Xuefeng Wei
- College of Plant Protection, Southwest University, Chongqing 400715, China
| | - Haitao Chen
- Chongqing Tobacco Science Research Institute, Chongqing 400715, China
| | - Daibin Wang
- Chongqing Tobacco Science Research Institute, Chongqing 400715, China.
| | - Yang Xue
- Citrus Research Institute, Southwest University, Chongqing 400712, China; School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China.
| | - Xianchao Sun
- College of Plant Protection, Southwest University, Chongqing 400715, China.
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20
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Li X, Yang X, Zheng X, Bai M, Hu D. Review on Structures of Pesticide Targets. Int J Mol Sci 2020; 21:E7144. [PMID: 32998191 PMCID: PMC7582455 DOI: 10.3390/ijms21197144] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 09/23/2020] [Accepted: 09/25/2020] [Indexed: 12/12/2022] Open
Abstract
Molecular targets play important roles in agrochemical discovery. Numerous pesticides target the key proteins in pathogens, insect, or plants. Investigating ligand-binding pockets and/or active sites in the proteins' structures is usually the first step in designing new green pesticides. Thus, molecular target structures are extremely important for the discovery and development of such pesticides. In this manuscript, we present a review of the molecular target structures, including those of antiviral, fungicidal, bactericidal, insecticidal, herbicidal, and plant growth-regulator targets, currently used in agrochemical research. The data will be helpful in pesticide design and the discovery of new green pesticides.
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Affiliation(s)
- Xiangyang Li
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China;
| | - Xueqing Yang
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China;
| | - Xiaodong Zheng
- College of Horticulture, Qingdao Agricultural University, Qingdao 266109, China;
| | - Miao Bai
- College of Horticulture, Hunan Agricultural University, Changsha 410128, China;
| | - Deyu Hu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China;
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Yang Y, Zhang J, Li X, He F, Wu R, Hu D, Song B. Discovery of Dithioacetal Derivatives Containing Sulfonamide Moiety of Novel Antiviral Agents by TMV Coat Protein as a Potential Target. ACS OMEGA 2020; 5:22596-22602. [PMID: 32923819 PMCID: PMC7482297 DOI: 10.1021/acsomega.0c03306] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 08/12/2020] [Indexed: 05/15/2023]
Abstract
Tobacco mosaic virus coat protein (TMV CP) plays an important role in viral replication, translation, and intracellular and intercellular movements. Thus, TMV CP could be regarded as a potential target for antiviral agents. In this study, in order to find out whether dithioacetal derivatives act on the CP target, a series of dithioacetal derivatives containing sulfonamide moiety was first designed and synthesized. Bioassay results demonstrated that Y14, Y18, and Y21 exhibited excellent activities against TMV, with half-maximal effective concentrations (EC50) of the curative, protective, and inactivate activities being 183.0 ± 3.2, 252.3 ± 2.6, and 63.8 ± 1.2 μg/mL, 270.6 ± 3.7, 249.7 ± 3.5, and 57.7 ± 1.4 μg/mL, and 329.5 ± 1.5, 269.2 ± 3.7, and 48.1 ± 2.0 μg/mL for Y14, Y18, and Y21, respectively, which were higher than those for the control agents ningnanmycin (331.0 ± 2.8, 271.0 ± 2.8, and 77.4 ± 1.3 μg/mL, respectively) and d2 (471.5 ± 1.4, 447.2 ± 2.1, and 91.7 ± 1.8 μg/mL, respectively). Transmission electron microscopy showed that the particle morphology of TMV was destroyed by Y21, and microscale thermophoresis (MST) showed that Y21 bonded to CP with a dissociation constant (K d) of 9.7 ± 1.7 μM. Then, molecular docking and MST further illustrated that Y21 had a weak binding affinity with the TMV mutant protein (K d = 561.3 ± 83.2 μM). Thus, we deduced that the dithioacetal derivative Y21 may inhibit TMV activity by binding TMV CP. This work provides some new insights for the design and optimization of novel anti-TMV agents.
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Affiliation(s)
| | | | | | | | | | | | - Baoan Song
- . Phone: 86-851-83622211. Fax: 86-851-83622211
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22
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Zhou S, Huang G. Retracted Article: The synthesis and biological activity of marine alkaloid derivatives and analogues. RSC Adv 2020; 10:31909-31935. [PMID: 35518151 PMCID: PMC9056551 DOI: 10.1039/d0ra05856d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Accepted: 07/29/2020] [Indexed: 12/11/2022] Open
Abstract
The ocean is the origin of life, with a unique ecological environment, which has given birth to a wealth of marine organisms. The ocean is an important source of biological resources and tens of thousands of monomeric compounds have been separated from marine organisms using modern separation technology. Most of these monomeric compounds have some kind of biological activity that has attracted extensive attention from researchers. Marine alkaloids are a kind of compound that can be separated from marine organisms. They have complex and special chemical structures, but at the same time, they can show diversity in biological activities. The biological activities of marine alkaloids mainly manifest in the form of anti-tumor, anti-fungus, anti-viral, anti-malaria, and anti-osteoporosis properties. Many marine alkaloids have good medicinal prospects and can possibly be used as anti-tumor, anti-viral, and anti-fungal clinical drugs or as lead compounds. The limited amounts of marine alkaloids that can be obtained by separation, coupled with the high cytotoxicity and low selectivity of these lead compounds, has restricted the clinical research and industrial development of marine alkaloids. Marine alkaloid derivatives and analogues have been obtained via rational drug design and chemical synthesis, to make up for the shortcomings of marine alkaloids; this has become an urgent subject for research and development. This work systematically reviews the recent developments relating to marine alkaloid derivatives and analogues in the field of medical chemistry over the last 10 years (2010-2019). We divide marine alkaloid derivatives and analogues into five types from the point-of-view of biological activity and elaborated on these activities. We also briefly discuss the optimization process, chemical synthesis, biological activity evaluation, and structure-activity relationship (SAR) of each of these compounds. The abundant SAR data provides reasonable approaches for the design and development of new biologically active marine alkaloid derivatives and analogues.
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Affiliation(s)
- Shiyang Zhou
- Chongqing Key Laboratory of Green Synthesis and Application, Active Carbohydrate Research Institute, College of Chemistry, Chongqing Normal University Chongqing 401331 China
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Hainan Normal University Haikou Hainan 571158 China
| | - Gangliang Huang
- Chongqing Key Laboratory of Green Synthesis and Application, Active Carbohydrate Research Institute, College of Chemistry, Chongqing Normal University Chongqing 401331 China
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Wang D, Huang M, Gao D, Chen K, Xinxie, Xu W, Li X. Screening anti-TMV agents targeting tobacco mosaic virus helicase protein. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2020; 166:104449. [PMID: 32448412 DOI: 10.1016/j.pestbp.2019.07.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 06/29/2019] [Accepted: 07/13/2019] [Indexed: 06/11/2023]
Abstract
Tobacco mosaic virus helicase (TMV-Hel) plays important roles in viral multiplication. TMV-Hel is a potential target of anti-TMV agents. Our previous studies expressed and purified TMV-Hel as target protein for cytosinpeptidemycin. In this study, we preform molecular docking to study the binding sites of commercial antiviral agents with TMV-Hel. Then we verify the interactions between the potential anti-TMV agents and TMV-Hel in vitro using Microscale Thermophoresis experiment and study the inhibiting expression of TMV-Hel with the potential anti-TMV agents in vivo using Western-blot (WB) method. The results showed that ribavirin bound to TMV-Hel with a dissociation constant of 1.55 μM by direct interaction with eight binding sites, which was consistent with the docking studies. Ribavirin inhibited the expression of TMV-Hel in Nicotiana benthamiana. Docking studies combined Microscale Thermophoresis and WB experiment provided a new method to screen anti-TMV agents targeting TMV-Hel.
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Affiliation(s)
- Dongmei Wang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, PR China
| | - Maoxi Huang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, PR China
| | - Di Gao
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, PR China
| | - Kai Chen
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, PR China
| | - Xinxie
- Department of Plant Pathology, College of Agriculture, Guizhou University, Guiyang 550025, PR China
| | - Weiming Xu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, PR China.
| | - Xiangyang Li
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, PR China.
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Wang T, Yang S, Li H, Lu A, Wang Z, Yao Y, Wang Q. Discovery, Structural Optimization, and Mode of Action of Essramycin Alkaloid and Its Derivatives as Anti-Tobacco Mosaic Virus and Anti-Phytopathogenic Fungus Agents. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:471-484. [PMID: 31841334 DOI: 10.1021/acs.jafc.9b06006] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Plant diseases seriously affect crop yield and quality and are difficult to control. Marine natural products (MNPs) have become an important source of drug candidates with new biological mechanisms. Marine natural product essramycin (1) was found to have good anti-tobacco mosaic virus (TMV) and anti-phytopathogenic fungus activities for the first time. A series of essramycin derivatives were designed, synthesized, and evaluated for their bioactivity. Most of these compounds exhibited antiviral effects that are greater than that of the control ribavirin. Compounds 7e and 8f displayed antiviral activities that are greater than that of ningnanmycin (the most widely used antiviral agent at present), thus emerging as novel antiviral lead compounds. As the lead compound, 7e was selected for further antiviral mechanism research. The results indicated that 7e could inhibit virus assembly and promote 20S disk protein aggregation. Fungicidal activity tests against 14 kinds of phytopathogenic fungi revealed that essramycin analogues displayed broad-spectrum fungicidal activities. Compound 5b displayed more than 50% inhibition rate against most of the 14 kinds of phytopathogenic fungi at 50 μg/mL. The current research lays a solid foundation for the application of essramycin alkaloids in crop protection.
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Affiliation(s)
- Tienan Wang
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, School of Chemical Engineering and Technology , Hebei University of Technology , Tianjin 300130 , China
| | - Shan Yang
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, School of Chemical Engineering and Technology , Hebei University of Technology , Tianjin 300130 , China
| | - Hongyan Li
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, School of Chemical Engineering and Technology , Hebei University of Technology , Tianjin 300130 , China
| | - Aidang Lu
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, School of Chemical Engineering and Technology , Hebei University of Technology , Tianjin 300130 , China
| | - Ziwen Wang
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, MOE Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, College of Chemistry , Tianjin Normal University , Tianjin 300387 , China
| | - Yingwu Yao
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, School of Chemical Engineering and Technology , Hebei University of Technology , Tianjin 300130 , China
| | - Qingmin Wang
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Nankai University , Tianjin 300071 , China
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Guo J, Hao Y, Ji X, Wang Z, Liu Y, Ma D, Li Y, Pang H, Ni J, Wang Q. Optimization, Structure-Activity Relationship, and Mode of Action of Nortopsentin Analogues Containing Thiazole and Oxazole Moieties. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:10018-10031. [PMID: 31448918 DOI: 10.1021/acs.jafc.9b04093] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Plant diseases seriously endanger plant health, and it is very difficult to control them. A series of nortopsentin analogues were designed, synthesized, and evaluated for their antiviral activities and fungicidal activities. Most of these compounds displayed higher antiviral activities than ribavirin. Compounds 1d, 1e, and 12a, with excellent antiviral activities, emerged as novel antiviral lead compounds, among which 1e was selected for further antiviral mechanism research. The mechanism research results indicated that these compounds may play an antiviral role by aggregating viral particles to prevent their movement in plants. Further fungicidal activity tests revealed that nortopsentin analogues displayed broad-spectrum fungicidal activities. Compounds 2p and 2f displayed higher antifungal activities against Alternaria solani than the commercial fungicides carbendazim and chlorothalonil. Current research has laid a foundation for the application of nortopsentin analogues in plant protection.
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Affiliation(s)
- Jincheng Guo
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, MOE Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, College of Chemistry , Tianjin Normal University , Tianjin 300387 , China
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Nankai University , Tianjin 300071 , China
| | - Yanan Hao
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Nankai University , Tianjin 300071 , China
| | - Xiaofei Ji
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Nankai University , Tianjin 300071 , China
| | - Ziwen Wang
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, MOE Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, College of Chemistry , Tianjin Normal University , Tianjin 300387 , China
| | - Yuxiu Liu
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Nankai University , Tianjin 300071 , China
| | - Dejun Ma
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Nankai University , Tianjin 300071 , China
| | - Yongqiang Li
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Nankai University , Tianjin 300071 , China
| | - Huailin Pang
- CAC Nantong Chemical Company, Ltd , Shanghai 226400 , China
| | - Jueping Ni
- CAC Nantong Chemical Company, Ltd , Shanghai 226400 , China
| | - Qingmin Wang
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Nankai University , Tianjin 300071 , China
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An M, Zhou T, Guo Y, Zhao X, Wu Y. Molecular Regulation of Host Defense Responses Mediated by Biological Anti-TMV Agent Ningnanmycin. Viruses 2019; 11:E815. [PMID: 31484426 PMCID: PMC6784071 DOI: 10.3390/v11090815] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 08/30/2019] [Accepted: 08/31/2019] [Indexed: 12/28/2022] Open
Abstract
Ningnanmycin (NNM) belongs to microbial pesticides that display comprehensive antiviral activity against plant viruses. NNM treatment has been shown to efficiently delay or suppress the disease symptoms caused by tobacco mosaic virus (TMV) infection in local-inoculated or systemic-uninoculated tobacco leaves, respectively. However, the underlying molecular mechanism of NNM-mediated antiviral activity remains to be further elucidated. In this study, 414 differentially expressed genes (DEGs), including 383 which were up-regulated and 31 down-regulated, caused by NNM treatment in TMV-infected BY-2 protoplasts, were discovered by RNA-seq. In addition, KEGG analysis indicated significant enrichment of DEGs in the plant-pathogen interaction and MAPK signaling pathway. The up-regulated expression of crucial DEGs, including defense-responsive genes, such as the receptor-like kinase FLS2, RLK1, and the mitogen-activated protein kinase kinase kinase MAPKKK, calcium signaling genes, such as the calcium-binding protein CML19, as well as phytohormone responsive genes, such as the WRKY transcription factors WRKY40 and WRKY70, were confirmed by RT-qPCR. These findings provided valuable insights into the antiviral mechanisms of NNM, which indicated that the agent induces tobacco systemic resistance against TMV via activating multiple plant defense signaling pathways.
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Affiliation(s)
- Mengnan An
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, Liaoning, China
| | - Tao Zhou
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, Liaoning, China
| | - Yi Guo
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, Liaoning, China
| | - Xiuxiang Zhao
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, Liaoning, China.
| | - Yuanhua Wu
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, Liaoning, China.
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An M, Zhao X, Zhou T, Wang G, Xia Z, Wu Y. A Novel Biological Agent Cytosinpeptidemycin Inhibited the Pathogenesis of Tobacco Mosaic Virus by Inducing Host Resistance and Stress Response. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:7738-7747. [PMID: 31199650 DOI: 10.1021/acs.jafc.9b02662] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Cytosinpeptidemycin (CytPM) is a microbial pesticide that displayed broad-spectrum antiviral activity against various plant viruses. However, the molecular mechanism underlying antiviral activity of CytPM is poorly understood. In this study, the results demonstrated that CytPM could effectively delay the systemic infection of tobacco mosaic virus (TMV) in Nicotiana benthamiana and significantly inhibit the viral accumulation in tobacco BY-2 protoplasts. Results of RNA-seq indicated that 210 and 120 differential expressed genes (DEGs) were significantly up- and down-regulated after CytPM treatment in BY-2 protoplasts, respectively. In addition, KEGG analysis indicated that various DEGs were involved in endoplasmic reticulum (ER) protein processing, suggesting a possible correlation between ER homeostasis and virus resistance. RT-qPCR was performed to validate the gene expression of crucial DEGs related with defense, stress responses, signaling transduction, and phytohormone, which were consistent with results of RNA-seq. Our works provided valuable insights into the antiviral mechanism of CytPM that induced host resistance to viral infection.
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Affiliation(s)
- Mengnan An
- College of Plant Protection , Shenyang Agricultural University , Shenyang 110866 , China
| | - Xiuxiang Zhao
- College of Plant Protection , Shenyang Agricultural University , Shenyang 110866 , China
| | - Tao Zhou
- College of Plant Protection , Shenyang Agricultural University , Shenyang 110866 , China
| | - Guanzhong Wang
- College of Plant Protection , Shenyang Agricultural University , Shenyang 110866 , China
| | - Zihao Xia
- College of Plant Protection , Shenyang Agricultural University , Shenyang 110866 , China
| | - Yuanhua Wu
- College of Plant Protection , Shenyang Agricultural University , Shenyang 110866 , China
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Gao D, Wang D, Chen K, Huang M, Xie X, Li X. Activation of biochemical factors in CMV-infected tobacco by ningnanmycin. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2019; 156:116-122. [PMID: 31027570 DOI: 10.1016/j.pestbp.2019.02.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Revised: 01/09/2019] [Accepted: 02/11/2019] [Indexed: 06/09/2023]
Abstract
Cucumber mosaic virus (CMV) is a plant virus with one of the largest host ranges, the widest distribution, and economic importance, and ningnanmycin (NNM) is a commercial antiviral agent. Studies have shown that NNM induces and promotes pathogenesis-related proteins in tobacco mosaic virus-inoculated tobacco. In the present study, the defense enzymes and the biochemical factors of CMV-inoculated tobacco treated with NNM were measured. The biochemical factors of CMV-inoculated tobacco leaves treated with NNM were analyzed. Results showed that the phenylalanine ammonia-lyase, peroxidase, polypheuoloxidase, and superoxide in the CMV-inoculated tobacco leaves treated with NNM were higher than those in non-treated tobacco leaves. Furthermore, NNM activated the oxidation-reduction process, metabolic process, and oxidoreductase activity in the CMV-infected tobacco.
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Affiliation(s)
- Di Gao
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, PR China
| | - Dongmei Wang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, PR China
| | - Kai Chen
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, PR China
| | - Maoxi Huang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, PR China
| | - Xin Xie
- College of Agriculture, Guizhou University, Guiyang 550025, PR China.
| | - Xiangyang Li
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, PR China.
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Chen L, Wang X, Tang X, Xia R, Guo T, Zhang C, Li X, Xue W. Design, synthesis, antiviral bioactivities and interaction mechanisms of penta-1,4-diene-3-one oxime ether derivatives containing a quinazolin-4(3 H)-one scaffold. BMC Chem 2019; 13:34. [PMID: 31384782 PMCID: PMC6661780 DOI: 10.1186/s13065-019-0547-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Accepted: 03/02/2019] [Indexed: 12/23/2022] Open
Abstract
Background penta-1,4-diene-3-one oxime ether and quinazolin-4(3H)-one derivatives possess favorable agricultural activities. Aiming to discover novel molecules with highly-efficient agricultural activities, a series of penta-1,4-diene-3-one oxime ether derivatives containing a quinazolin-4(3H)-one scaffold were synthesized and evaluated for their antiviral activities. Result Antiviral bioassays indicated that some title compounds exhibited significant antiviral activity against tobacco mosaic virus (TMV). In particular, compounds 8c, 8j and 8k possessed appreciable curative activities against TMV in vivo, with half-maximal effective concentration (EC50) values of 138.5, 132.9 and 125.6 μg/mL, respectively, which are better than that of ningnanmycin (207.3 μg/mL). Furthermore, the microscale thermophoresis experiments (MST) on the interaction of compound 8k with TMV coat protein (TMV CP) showed 8k bound to TMV CP with a dissociation constant of 0.97 mmol/L. Docking studies provided further insights into the interaction of 8k with the Arg90 of TMV CP. Conclusions Sixteen penta-1,4-diene-3-one oxime ether derivatives containing a quinazolin-4(3H)-one scaffold were designed, synthesized, and their antiviral activities against TMV were evaluated. Antiviral bioassays indicated that some target compounds exhibited remarkable antiviral activities against TMV. Furthermore, through the MST and docking studies, we can speculate that 8k inhibited the virulence of TMV by binding Arg90 in TMV CP. These results indicated that this kind of penta-1,4-diene-3-one oxime ether derivatives containing a quinazolin-4(3H)-one scaffold could be further studied as potential alternative templates in the search for novel antiviral agents.![]() Electronic supplementary material The online version of this article (10.1186/s13065-019-0547-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Lijuan Chen
- 1State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, 550025 China
| | - Xiaobin Wang
- 1State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, 550025 China.,2College of Sciences, Nanjing Agricultural University, Nanjing, 210095 China
| | - Xu Tang
- 1State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, 550025 China
| | - Rongjiao Xia
- 1State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, 550025 China
| | - Tao Guo
- 1State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, 550025 China
| | - Cheng Zhang
- 1State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, 550025 China
| | - Xiangyang Li
- 1State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, 550025 China
| | - Wei Xue
- 1State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, 550025 China
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30
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Qin Y, Wang J, Wang F, Shen L, Zhou H, Sun H, Hao K, Song L, Zhou Z, Zhang C, Wu Y, Yang J. Purification and Characterization of a Secretory Alkaline Metalloprotease with Highly Potent Antiviral Activity from Serratia marcescens Strain S3. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:3168-3178. [PMID: 30799619 DOI: 10.1021/acs.jafc.8b06909] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
In this study we report a secretory protein that was purified from Serratia marcescens strain S3 isolated from soil from the tobacco rhizosphere. Subsequent mass spectrometry and annotation characterized the protein as secretory alkaline metalloprotease (SAMP). SAMP plays a crucial role in inhibiting Tobacco mosaic virus (TMV). Transmission electron microscopy (TEM), dynamic light scattering (DLS), confocal microscopy, and microscale thermophoresis (MST) were employed to investigate the anti-TMV mechanism of SAMP. Our results demonstrated that SAMP, as a hydrolytic metal protease, combined and hydrolyzed TMV coat proteins to destroy the virus particles. This study is the first to investigate the antiviral effects of a S. marcescens metalloprotease, and our finding suggests that S. marcescens-S3 may be agronomically useful as a disease-controlling factor active against Tobacco mosaic virus.
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Affiliation(s)
- Yuanxia Qin
- College of Plant Protection , Shenyang Agricultural University , Shenyang 110866 , P. R. China
- Key Laboratory of Tobacco Pest Monitoring Controlling & Integrated Management , Tobacco Research Institute of Chinese Academy of Agricultural Sciences , Qingdao 266101 , P. R. China
| | - Jie Wang
- Key Laboratory of Tobacco Pest Monitoring Controlling & Integrated Management , Tobacco Research Institute of Chinese Academy of Agricultural Sciences , Qingdao 266101 , P. R. China
| | - Fenglong Wang
- Key Laboratory of Tobacco Pest Monitoring Controlling & Integrated Management , Tobacco Research Institute of Chinese Academy of Agricultural Sciences , Qingdao 266101 , P. R. China
| | - Lili Shen
- Key Laboratory of Tobacco Pest Monitoring Controlling & Integrated Management , Tobacco Research Institute of Chinese Academy of Agricultural Sciences , Qingdao 266101 , P. R. China
| | - Haixiang Zhou
- Key Laboratory of Tobacco Pest Monitoring Controlling & Integrated Management , Tobacco Research Institute of Chinese Academy of Agricultural Sciences , Qingdao 266101 , P. R. China
| | - Hangjun Sun
- Key Laboratory of Tobacco Pest Monitoring Controlling & Integrated Management , Tobacco Research Institute of Chinese Academy of Agricultural Sciences , Qingdao 266101 , P. R. China
| | - Kaiqiang Hao
- Key Laboratory of Tobacco Pest Monitoring Controlling & Integrated Management , Tobacco Research Institute of Chinese Academy of Agricultural Sciences , Qingdao 266101 , P. R. China
| | - Liyun Song
- College of Plant Protection , Shenyang Agricultural University , Shenyang 110866 , P. R. China
- Key Laboratory of Tobacco Pest Monitoring Controlling & Integrated Management , Tobacco Research Institute of Chinese Academy of Agricultural Sciences , Qingdao 266101 , P. R. China
| | - Zhicheng Zhou
- Hunan Tobacco Science Institute , Changsha 410004 , P. R. China
| | - Chaoqun Zhang
- Jiangxi Institute of Tobacco Leaf Science , Nanchang 330025 , P. R. China
| | - Yuanhua Wu
- College of Plant Protection , Shenyang Agricultural University , Shenyang 110866 , P. R. China
| | - Jinguang Yang
- Key Laboratory of Tobacco Pest Monitoring Controlling & Integrated Management , Tobacco Research Institute of Chinese Academy of Agricultural Sciences , Qingdao 266101 , P. R. China
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31
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Lu A, Wang T, Hui H, Wei X, Cui W, Zhou C, Li H, Wang Z, Guo J, Ma D, Wang Q. Natural Products for Drug Discovery: Discovery of Gramines as Novel Agents against a Plant Virus. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:2148-2156. [PMID: 30730738 DOI: 10.1021/acs.jafc.8b06859] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Plant viral diseases seriously affect crop yield and quality. The natural product gramine (1) and its simple structural analogues 2-35 were synthesized from indoles, amines, and aldehydes in one step. The antiviral effects of these alkaloids were evaluated systematically. Most of these compounds were found to have higher antiviral effects than commercial ribavirin for the first time. Especially compounds 22, 30, and 31 exhibited significantly higher effects than ningnanmycin, thereby emerging as novel antiviral leads for further optimization. The preliminary implementation indicated that these compounds likely inhibit the assembly of tobacco mosaic virus (TMV) by cross-linking TMV capsid protein. Gramine analogues were also found to have broad-spectrum fungicidal effects. Although gramine has been reported to have influence on germination and development of Erysiphe graminis, these compounds displayed no fungicidal effects against Blumeria graminis f. sp. tritici on wheat in our test. Some of these compounds also exhibited certain insecticidal activities.
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Affiliation(s)
- Aidang Lu
- School of Chemical Engineering and Technology, Hebei Collaborative Innovation Center of Modern Marine Chemical Technology , Hebei University of Technology , Tianjin 300130 , China
| | - Tienan Wang
- School of Chemical Engineering and Technology, Hebei Collaborative Innovation Center of Modern Marine Chemical Technology , Hebei University of Technology , Tianjin 300130 , China
| | - Hao Hui
- School of Chemical Engineering and Technology, Hebei Collaborative Innovation Center of Modern Marine Chemical Technology , Hebei University of Technology , Tianjin 300130 , China
| | - Xiaoye Wei
- School of Chemical Engineering and Technology, Hebei Collaborative Innovation Center of Modern Marine Chemical Technology , Hebei University of Technology , Tianjin 300130 , China
| | - Weihao Cui
- School of Chemical Engineering and Technology, Hebei Collaborative Innovation Center of Modern Marine Chemical Technology , Hebei University of Technology , Tianjin 300130 , China
| | - Chunlv Zhou
- School of Chemical Engineering and Technology, Hebei Collaborative Innovation Center of Modern Marine Chemical Technology , Hebei University of Technology , Tianjin 300130 , China
| | - Hongyan Li
- School of Chemical Engineering and Technology, Hebei Collaborative Innovation Center of Modern Marine Chemical Technology , Hebei University of Technology , Tianjin 300130 , China
| | - Ziwen Wang
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, MOE Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, College of Chemistry , Tianjin Normal University , Tianjin 300387 , China
| | - Jincheng Guo
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Nankai University , Tianjin 300071 , China
| | - Dejun Ma
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Nankai University , Tianjin 300071 , China
| | - Qingmin Wang
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Nankai University , Tianjin 300071 , China
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32
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Li X, Chen K, Gao D, Wang D, Huang M, Zhu H, Kang J. Binding studies between cytosinpeptidemycin and the superfamily 1 helicase protein of tobacco mosaic virus. RSC Adv 2018; 8:18952-18958. [PMID: 35539684 PMCID: PMC9080650 DOI: 10.1039/c8ra01466c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Accepted: 05/14/2018] [Indexed: 11/21/2022] Open
Abstract
Tobacco mosaic virus (TMV) helicases play important roles in viral multiplication and interactions with host organisms. They can also be targeted by antiviral agents. Cytosinpeptidemycin has a good control effect against TMV. However, the mechanism of action is unclear. In this study, we expressed and purified TMV superfamily 1 helicase (TMV-Hel) and analyzed its three-dimensional structure. Furthermore, the binding interactions of TMV-Hel and cytosinpeptidemycin were studied. Microscale thermophoresis and isothermal titration calorimetry experiments showed that cytosinpeptidemycin bound to TMV-Hel with a dissociation constant of 0.24–0.44 μM. Docking studies provided further insights into the interaction of cytosinpeptidemycin with the His375 of TMV-Hel. Mutational and Microscale thermophoresis analyses showed that cytosinpeptidemycin bound to a TMV-Hel mutant (H375A) with a dissociation constant of 14.5 μM. Thus, His375 may be the important binding site for cytosinpeptidemycin. The data are important for designing and synthesizing new effective antiphytoviral agents. Tobacco mosaic virus (TMV) helicases play important roles in viral multiplication and interactions with host organisms.![]()
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Affiliation(s)
- Xiangyang Li
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering
- Key Laboratory of Green Pesticide and Agricultural Bioengineering
- Ministry of Education
- Guizhou University
- Guiyang 550025
| | - Kai Chen
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering
- Key Laboratory of Green Pesticide and Agricultural Bioengineering
- Ministry of Education
- Guizhou University
- Guiyang 550025
| | - Di Gao
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering
- Key Laboratory of Green Pesticide and Agricultural Bioengineering
- Ministry of Education
- Guizhou University
- Guiyang 550025
| | - Dongmei Wang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering
- Key Laboratory of Green Pesticide and Agricultural Bioengineering
- Ministry of Education
- Guizhou University
- Guiyang 550025
| | - Maoxi Huang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering
- Key Laboratory of Green Pesticide and Agricultural Bioengineering
- Ministry of Education
- Guizhou University
- Guiyang 550025
| | - Hengmin Zhu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering
- Key Laboratory of Green Pesticide and Agricultural Bioengineering
- Ministry of Education
- Guizhou University
- Guiyang 550025
| | - Jinxin Kang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering
- Key Laboratory of Green Pesticide and Agricultural Bioengineering
- Ministry of Education
- Guizhou University
- Guiyang 550025
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