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Yadav SK, Kumar N, Sankar M. Oxidovanadium(IV) Porphyrin-Imidazole Complex-Catalyzed One-Pot, Three-Component Green Synthesis of Biologically Active Pyrano[2,3- d]pyrimidine and 4 H-Chromene Heterocycles. Inorg Chem 2025. [PMID: 40354361 DOI: 10.1021/acs.inorgchem.4c04871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2025]
Abstract
A β-functionalized porphyrin ligand {H2TPP(Phen)}, has been synthesized and subsequently employed as a dibasic tetradentate ligand in synthesizing its vanadyl complex 2-(1H-imidazo[4,5-f][1,10]phenanthroline-2-yl)-5,10,15,20-tetraphenylporphyrinatooxido-vanadium(IV)[VIVOTPP(Phen)] (1). Comprehensive characterization of the ligand {H2TPP(Phen)} and its vanadyl(IV) complex (1) was achieved through various analytical and spectroscopic techniques, including NMR, ultraviolet-visible (UV-vis), EPR, and MALDI-TOF mass spectrometry and elemental analysis. Electrochemical studies indicated that the free base porphyrin {H2TPP(Phen)} tends to four successive reduction peaks and two oxidation peaks observed in cyclic voltammetry. In contrast, the metalated complex [VIVOTPP(Phen)] displayed two successive reversible reductions and two oxidation peaks. The synthesized vanadyl(IV)-porphyrin complex (1) was further employed as an efficient and reusable catalyst in an environmentally friendly, one-pot, three-component synthesis of biologically and clinically relevant pyrano[2,3-d]pyrimidine (Ca-Ch, Da-Dg) and 4H-chromene (Ga-Gj, Ha-Hj) heterocycles. Based on the current literature regarding one-pot, multicomponent reactions, two distinct and plausible mechanistic pathways are postulated for these transformations. A detailed mechanistic investigation, including the isolation of intermediates and stepwise reaction analysis, revealed that the type of 1,3-dicarbonyl compound used is pivotal in determining the operative mechanistic pathway in these reactions. The current catalytic protocol developed for the synthesis of pyrano[2,3-d]pyrimidine and 4H-chromene heterocycles presents several advantages over existing methodologies, including the use of an eco-friendly solvent (ethanol), high product yields (up to 97%), shorter reaction time scale (30 min), high turnover frequency (TOF) values (up to 14.7 min-1), and excellent catalyst reusability over five catalytic cycles.
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Affiliation(s)
- Sumit Kumar Yadav
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee 247667, India
| | - Naveen Kumar
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee 247667, India
- Department of Chemistry, Maharaj Singh College, Saharanpur 247001, India
| | - Muniappan Sankar
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee 247667, India
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2
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Wu W, An J, Lan W, Chen H, Fei Q, Xu S, Yin R, Yang LL, Yang S. Design, synthesis, molecular docking and antimicrobial evaluation of benzoylurea derivatives containing difluoromethyl (trifluoromethyl) pyrimidine. PEST MANAGEMENT SCIENCE 2025; 81:1804-1816. [PMID: 39673224 DOI: 10.1002/ps.8593] [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: 09/25/2024] [Revised: 11/18/2024] [Accepted: 11/20/2024] [Indexed: 12/16/2024]
Abstract
BACKGROUND The reduction in agricultural product quality and yield caused by fungal and bacterial plant diseases has led to considerable economic losses in global crop production and poses a threat to human health. The primary method of control remains the use of chemical agents. In an effort to develop novel and highly effective antimicrobial agents, a series of benzoylurea derivatives incorporating a difluoromethyl (trifluoromethyl) pyrimidine structure were designed and synthesized. RESULTS In this study, we designed and synthesized a series of novel benzoylurea derivatives containing difluoromethyl (trifluoromethyl) pyrimidine fragments. Several of the synthesized compounds exhibited notable antifungal activity in vitro against PS, CBC, BBC and TBC. Their efficacy surpassed that of the positive controls HM and Pyr. Notably, 6s demonstrated an EC50 value of 4.10 μg mL-1, significantly lower than the 31.25 μg mL-1 for Pyr. In antibacterial assays, 6s also showed an 87.49% inhibition rate against Xoc. Moreover, in vivo tests against CBC revealed a protective efficacy of 59.39% at a concentration of 25 μg mL-1. Molecular docking simulations further supported its strong activity. To explore the mechanism of action of 6s on CBC, we conducted scanning electron microscopy, succinate dehydrogenase enzyme assays, and measurements of dry weight, membrane permeability, cellular contents, and ROS. CONCLUSION This study underscores the potential of benzoylurea derivatives containing difluoromethyl (trifluoromethyl) pyrimidine fragments as lead compounds for the management of CBC. The results offer important insights and pave the way for the development of novel fungicides, contributing to improved crop protection strategies in agriculture. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Wenneng Wu
- Food Science and Engineering Institute, College of Materials Science and Engineering, Guizhou Engineering Research Center for Characteristic Flavor Perception and Quality Control of Drug-Food Homologous Resources, Guiyang University, Guiyang, P. R. China
| | - Jiansong An
- Food Science and Engineering Institute, College of Materials Science and Engineering, Guizhou Engineering Research Center for Characteristic Flavor Perception and Quality Control of Drug-Food Homologous Resources, Guiyang University, Guiyang, P. R. China
| | - Wenjun Lan
- Food Science and Engineering Institute, College of Materials Science and Engineering, Guizhou Engineering Research Center for Characteristic Flavor Perception and Quality Control of Drug-Food Homologous Resources, Guiyang University, Guiyang, P. R. China
| | - Haijiang Chen
- Food Science and Engineering Institute, College of Materials Science and Engineering, Guizhou Engineering Research Center for Characteristic Flavor Perception and Quality Control of Drug-Food Homologous Resources, Guiyang University, Guiyang, P. R. China
| | - Qiang Fei
- Food Science and Engineering Institute, College of Materials Science and Engineering, Guizhou Engineering Research Center for Characteristic Flavor Perception and Quality Control of Drug-Food Homologous Resources, Guiyang University, Guiyang, P. R. China
| | - Su Xu
- Food Science and Engineering Institute, College of Materials Science and Engineering, Guizhou Engineering Research Center for Characteristic Flavor Perception and Quality Control of Drug-Food Homologous Resources, Guiyang University, Guiyang, P. R. China
| | - Rongxiu Yin
- Tea Research Institute, Guizhou Provincial Academy of Agricultural Sciences, Guiyang, China
| | - Lin-Lin Yang
- Food Science and Engineering Institute, College of Materials Science and Engineering, Guizhou Engineering Research Center for Characteristic Flavor Perception and Quality Control of Drug-Food Homologous Resources, Guiyang University, Guiyang, P. R. China
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, China
| | - Song Yang
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, China
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Bai S, Zhang M, Li M, Tang S, Wan S, Wang F, Wei X, Chen L, Feng S, Wu R. Design, Synthesis, Antibacterial Activity, and Mechanism of Action of Coumarin Derivatives Containing Benzylamine. Chem Biodivers 2025:e202402034. [PMID: 40133748 DOI: 10.1002/cbdv.202402034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2024] [Revised: 02/19/2025] [Accepted: 03/25/2025] [Indexed: 03/27/2025]
Abstract
A series of novel coumarin derivatives were synthesized by successfully combining the coumarin backbone with benzylamine groups using active splicing technology and chemical synthesis. These derivatives demonstrated excellent antibacterial activity in vitro, with compound A5 being particularly prominent. Through three-dimensional quantitative structure-activity relationships (3D-QSAR) analysis, it was found that the introduction of an electron-donating group at the R1 position and a larger group at the R2 position could enhance the antibacterial activity, and the action mechanism of compound A5 was studied. The experimental results showed that A5 could increase the permeability of the bacterial membrane, thus disrupting the Xoo membrane and effectively inhibiting bacterial growth. This finding not only reveals the antibacterial mechanism of A5, but also provides an important scientific basis for the development of new antibacterial agents.
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Affiliation(s)
- Song Bai
- Guizhou Industry Polytechnic College, Guiyang, China
- 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
| | - Miaohe Zhang
- School of Chemical Engineering, Guizhou Institute of Technology, Guiyang, China
| | - Miao Li
- Guizhou Industry Polytechnic College, Guiyang, China
- 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
| | - Shouyin Tang
- Guizhou Industry Polytechnic College, Guiyang, China
- 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
| | - Suran Wan
- Guizhou Industry Polytechnic College, Guiyang, China
- 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
| | - Fang Wang
- Guizhou Industry Polytechnic College, Guiyang, China
- 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
| | - Xian Wei
- School of Chemical Engineering, Guizhou Institute of Technology, Guiyang, China
| | - Lijun Chen
- Guizhou Industry Polytechnic College, Guiyang, China
- 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
| | - Shuang Feng
- School of Chemical Engineering, Guizhou Institute of Technology, Guiyang, China
| | - Rong Wu
- Guizhou Industry Polytechnic College, Guiyang, China
- 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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Yang J, Liu K, Chen Y, Ye H, Hao G, Du F, Wang P. A supramolecular bactericidal material for preventing and treating plant-associated biofilms. Nat Commun 2025; 16:2627. [PMID: 40097425 PMCID: PMC11914267 DOI: 10.1038/s41467-025-57839-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2024] [Accepted: 03/05/2025] [Indexed: 03/19/2025] Open
Abstract
Treating bacterial biofilms on plants poses challenges due to biofilm induced resistance and poor agent adhesion on plant leaves. Here, we report on a host-guest self-assembled material which is biocompatible, has a lamellar supramolecular structure for leaf retention and prevents and treats bacterial biofilms. Phosphate/isopropanolamine-modified ferrocene forms a host-guest complex with β-CD which assembles into a lamella structure. The agent shows control efficacy against bacterial blight, bacterial leaf streak, and citrus canker in testing.
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Affiliation(s)
- Jinghan Yang
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for Research and Development of Fine Chemicals of Guizhou University, Guiyang, China
| | - Kongjun Liu
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for Research and Development of Fine Chemicals of Guizhou University, Guiyang, China
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, China
| | - Yazhen Chen
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for Research and Development of Fine Chemicals of Guizhou University, Guiyang, China
| | - Haojie Ye
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for Research and Development of Fine Chemicals of Guizhou University, Guiyang, China
| | - Gefei Hao
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for Research and Development of Fine Chemicals of Guizhou University, Guiyang, China
| | - Fengpei Du
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, China.
| | - Peiyi Wang
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for Research and Development of Fine Chemicals of Guizhou University, Guiyang, China.
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Zala M, Vora JJ, Khedkar VM, Almalki AH, Tivari S, Jatvada R. Development of Novel Sulfonamide-Based Pyrazole-Clubbed Pyrazoline Derivatives: Synthesis, Biological Evaluation, and Molecular Docking Study. ACS OMEGA 2025; 10:7120-7130. [PMID: 40028071 PMCID: PMC11866009 DOI: 10.1021/acsomega.4c10198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2024] [Revised: 01/18/2025] [Accepted: 01/24/2025] [Indexed: 03/05/2025]
Abstract
To overcome the multidrug-resistant tuberculosis (MDR-TB) problem, we reported the synthesis of novel sulfonamide-based pyrazole-clubbed pyrazoline derivatives (9a-p) by reaction of 1-(7-chloroquinolin-4-yl)-3-(thiophene/furan-2-yl)-1H-pyrazole-4-carbaldehyde chalcone derivatives (8a-p) and 4-hydrazinylbenzenesulfonamide (2) in the presence of a catalytic amount of Conc. HCl and ethanol are used as a solvent. Newly synthesized compounds were tested against the Mycobacterium tuberculosis H37Rv strain, wherein compounds 9g, 9h, 9i, 9j, 9m, and 9n were found to be the most potent. The structures of the newly synthesized analogues were determined by different spectroscopic techniques like ESI-MS, FT-IR, NMR, and UV methods. Additionally, molecular docking studies of the active site of mycobacterial InhA resulted in well-aggregated elucidations for these compounds with a binding strength in the range of -9.714 to -8.647. Compound 4-(1'-(7-chloroquinolin-4-yl)-5-(4-fluorophenyl)-3'-(thiophen-2-yl)-3,4-dihydro-1'H,2H-[3,4'-bipyrazol]-2-yl)benzenesulfonamide (9g) shows excellent antitubercular activity against M. tuberculosis H37Rv, achieving an MIC of 10.2 μg/mL and 99% inhibition with a docking score of -9.714 and a Glide energy of -64.183 kcal/mol. In silico ADMET predictions indicated the drug-likeness of synthesized novel molecules.
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Affiliation(s)
- Mayursinh Zala
- Department
of Chemistry, Faculty of Science, Gujarat
University, Ahmedabad 380009, India
| | - Jwalant J. Vora
- Department
of Chemistry, Faculty of Science, Gujarat
University, Ahmedabad 380009, India
| | - Vijay M. Khedkar
- Department
of Pharmaceutical Chemistry, School of Pharmacy, Vishwakarma University, Pune, Maharshtra 424001, India
| | - Atiah H. Almalki
- Department
of Pharmaceutical Chemistry, College of Pharmacy, Taif University, Taif 21944, Saudi Arabia
| | - Sunil Tivari
- Department
of Chemistry, School of Pharmacy, Marwadi
University, Rajkot, Gujarat 360003, India
| | - Rupal Jatvada
- Department
of Biotechnology, School of Science, Silver
Oak University, Ahmedabad 382481, India
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6
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Cheng X, Song Y, Gong J, Wang F, Wang D, Chang X, Lv X. Design, Synthesis, and Antifungal Evaluation of Novel Pyrazole-5-sulfonamide Derivatives for Plant Protection. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:22045-22053. [PMID: 39321320 DOI: 10.1021/acs.jafc.4c05050] [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: 09/27/2024]
Abstract
To develop further novel environmentally friendly antifungal agents with high efficacy, a series of pyrazole-5-sulfonamide derivatives were designed and synthesized by using the active molecules synthesized in previous works as lead compounds. Their antifungal activities were evaluated in vitro against ten highly destructive plant pathogenic fungi. The bioassay results indicated that more than half of the target compounds displayed potent antifungal activities (inhibition rate ≥85%) against Valsa mali and Sclerotinia sclerotiorum at 20 mg/L. Among them, compound C22 exhibited significant broad-spectrum antifungal activities against V. mali, S. sclerotiorum, Rhizoctonia solani, Botrytis cinerea, and Trichoderma viride, with EC50 values of 0.45, 0.49, 3.06, 0.57, and 1.43 mg/L, respectively. Moreover, compounds C21 and C22 exhibited remarkable protective effects on apple Valsa canker similar to tebuconazole (89.5%) at 50 mg/L. Preliminary antifungal mechanism investigations demonstrated that compound C22 may have inhibited V. mali mycelial growth by inducing oxidative damage to the mycelium and compromising the integrity of the cell membrane. Meanwhile, compounds C21 and C22 exhibited no obvious toxicity to worker bees (Apis mellifera ligustica). Taken together, these pyrazole-5-sulfonamide derivatives, particularly compound C22, possess huge potential to be developed as novel environmentally friendly fungicides with high efficacy.
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Affiliation(s)
- Xiang Cheng
- College of Materials and Chemistry and School of Plant Protection, Anhui Agricultural University, Hefei 230036, China
| | - Yaping Song
- College of Materials and Chemistry and School of Plant Protection, Anhui Agricultural University, Hefei 230036, China
| | - Jiexiu Gong
- College of Materials and Chemistry and School of Plant Protection, Anhui Agricultural University, Hefei 230036, China
| | - Fanglei Wang
- College of Materials and Chemistry and School of Plant Protection, Anhui Agricultural University, Hefei 230036, China
| | - Dandan Wang
- College of Materials and Chemistry and School of Plant Protection, Anhui Agricultural University, Hefei 230036, China
| | - Xihao Chang
- College of Materials and Chemistry and School of Plant Protection, Anhui Agricultural University, Hefei 230036, China
| | - Xianhai Lv
- College of Materials and Chemistry and School of Plant Protection, Anhui Agricultural University, Hefei 230036, China
- Joint Research Center for Food Nutrition and Health of IHM, Hefei 230051, China
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An L, Yang L, Yan T, Yi M, Liu S, Li H, Bao X. Synthesis and agricultural antimicrobial evaluation of new quinazoline derivatives containing both a piperazine linker and the N-acetyl moiety. PEST MANAGEMENT SCIENCE 2024; 80:5307-5321. [PMID: 38899477 DOI: 10.1002/ps.8256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 05/23/2024] [Accepted: 06/05/2024] [Indexed: 06/21/2024]
Abstract
BACKGROUND To discover more efficient agricultural antimicrobial agents, a series of new quinazoline derivatives containing both a piperazine linker and the N-acetyl moiety were prepared and assessed for their antibacterial and antifungal activities. RESULTS All the target compounds were characterized by 1H and 13C NMR as well as high-resolution mass spectrometry (HRMS), and the chemical structure of the most potent compound E19 incorporating a 4-trifluoromethoxy substituent was clearly confirmed via single crystal X-ray diffraction measurements. The bioassay results indicated that some compounds possessed notable inhibitory effects in vitro against the bacterium Xanthomonas oryzae pv. oryzicola (Xoc). For example, compound E19 had an EC50 (effective concentration for 50% activity) value of 7.1 μg/mL towards this pathogen, approximately 15- and 10-fold more effective than the commercial bactericides thiodiazole copper and bismerthiazol (EC50 = 110.2 and 72.4 μg/mL, respectively). Subsequently, the mechanistic studies showed that compound E19 likely exerted its antibacterial efficacies by altering the cell morphology, increasing the permeability of bacterial cytoplasmic membrane, suppressing the production of bacterial extracellular polysaccharides and the extracellular enzyme activities (amylase and cellulase), and blocking the swimming motility of Xoc. Moreover, the proteomic analysis revealed that compound E19 could reduce the bacterial flagellar biosynthesis and decrease the flagellar motility by down-regulating the expression of the related differential proteins. CONCLUSION Compound E19 exhibited good potential for further development as a bactericide candidate for control of Xoc. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Lian An
- State Key Laboratory of Green Pesticides, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Centre for Research and Development of Fine Chemicals, Guizhou University, Guiyang, People's Republic of China
| | - Lan Yang
- College of Pharmacy, Guizhou University, Guiyang, People's Republic of China
| | - Taisen Yan
- State Key Laboratory of Green Pesticides, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Centre for Research and Development of Fine Chemicals, Guizhou University, Guiyang, People's Republic of China
| | - Mingyan Yi
- State Key Laboratory of Green Pesticides, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Centre for Research and Development of Fine Chemicals, Guizhou University, Guiyang, People's Republic of China
| | - Songsong Liu
- State Key Laboratory of Green Pesticides, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Centre for Research and Development of Fine Chemicals, Guizhou University, Guiyang, People's Republic of China
| | - Hong Li
- State Key Laboratory of Green Pesticides, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Centre for Research and Development of Fine Chemicals, Guizhou University, Guiyang, People's Republic of China
| | - Xiaoping Bao
- State Key Laboratory of Green Pesticides, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Centre for Research and Development of Fine Chemicals, Guizhou University, Guiyang, People's Republic of China
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Yang X, Jiang S, Zhang M, Li T, Jin Z, Wu X, Chi YR. Discovery of novel piperidine-containing thymol derivatives as potent antifungal agents for crop protection. PEST MANAGEMENT SCIENCE 2024; 80:4906-4914. [PMID: 38817109 DOI: 10.1002/ps.8203] [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: 04/15/2024] [Revised: 05/13/2024] [Accepted: 05/15/2024] [Indexed: 06/01/2024]
Abstract
BACKGROUND Plant fungal diseases pose a significant threat to crop production. The extensive use of chemical pesticides has led to growing environmental safety risks and pesticide resistance of various plant pathogens. Therefore, it is an urgent task to explore novel eco-friendly fungicidal agents with high efficacy to combat fungal infection. RESULTS In this study, we rationally designed a series of novel thymol derivatives by incorporation of the sulfonamide moiety and evaluated their biological activities against plant pathogenic fungi. The bioassay results underscored the remarkable in vitro antifungal activity of compounds 5m and 5t against Phytophthora capsici (P. capsici), with EC50 values of 8.420 and 8.414 μg/mL, respectively. Their efficacies were superior to that of widely used commercial fungicides azoxystrobin (AZO, 20.649 μg/mL) and cabendazim (CAB, 251.625 μg/mL). Furthermore, compound 5v exhibited excellent in vitro antifungal activity against Sclerotinia sclerotiorum (S. sclerotiorum), with an EC50 value of 12.829 μg/mL, significantly outperforming AZO (63.629 μg/mL). In vivo bioassays demonstrated the impactful activity of compound 5v against S. sclerotiorum, achieving over 98% curative and protective efficacies at the concentration of 200 μg/mL. Further mechanistic investigations unveiled that compound 5v induced mycelial shrinkage and collapse in S. sclerotiorum, resulting in organelle damage and the accumulation of antioxidant enzyme activity. CONCLUSION The significant antifungal efficacy of the prepared thymol derivatives shall encourage further exploration of compound 5v as a promising candidate to develop novel fungicides for crop protection. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Xiaoqun Yang
- State Key Laboratory of Green Pesticide; Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, China
| | - Shichun Jiang
- State Key Laboratory of Green Pesticide; Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, China
| | - Meng Zhang
- State Key Laboratory of Green Pesticide; Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, China
| | - Tingting Li
- State Key Laboratory of Green Pesticide; Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, China
| | - Zhichao Jin
- State Key Laboratory of Green Pesticide; Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, China
| | - Xingxing Wu
- State Key Laboratory of Green Pesticide; Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, China
| | - Yonggui Robin Chi
- State Key Laboratory of Green Pesticide; Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, China
- School of Chemistry, Chemical Engineering, and Biotechnology, Nanyang Technological University, Singapore, Singapore
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9
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Zheng Y, Zhang R, Chen M, Zhou Q, Wu Y, Xue W. Design, Synthesis, and Antibacterial Evaluation of Novel Isoindolin-1-ones Derivatives Containing Piperidine Fragments. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:12434-12444. [PMID: 38775141 DOI: 10.1021/acs.jafc.3c09928] [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: 06/06/2024]
Abstract
A series of novel isoindoline-1-one derivatives containing piperidine moiety were designed and synthesized using natural compounds as raw materials, and their biological activities were tested for three bacterial and three fungal pathogens. These derivatives exhibited good against phytopathogenic bacteria activities against Pseudomonas syringae pv actinidiae (Psa) and Xanthomonas axonopodis pv.citri (Xac). Some compounds exhibited excellent antibacterial activities against Xanthomonas oryzae pv oryzae (Xoo). The dose of Y8 against Xoo (the maximum half lethal effective concentration (EC50) = 21.3 μg/mL) was better than that of the thiediazole copper dose (EC50 = 53.3 μg/mL). Excitingly, further studies have shown that the molecular docking of Y8 with 2FBW indicates that it can fully locate the interior of the binding pocket through hydrogen bonding and hydrophobic interactions, thereby enhancing its anti-Xoo activity. Scanning electron microscopy (SEM) studies revealed that Y8 induced the Xoo cell membrane collapse. Moreover, the proteomic results also indicate that Y8 may be a multifunctional candidate as it affects the formation of bacterial Xoo biofilms, thereby exerting antibacterial effects.
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Affiliation(s)
- Yuguo Zheng
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemical of Guizhou University, Huaxi District Guiyang 550025, China
- The Key Laboratory of Chemical Synthesis and Environmental Pollution Control-Remediation Technology of Guizhou Province, Xingyi Normal University for Nationalities, Xingyi 562400, China
| | - Renfeng Zhang
- The Key Laboratory of Chemical Synthesis and Environmental Pollution Control-Remediation Technology of Guizhou Province, Xingyi Normal University for Nationalities, Xingyi 562400, China
| | - Mei Chen
- The Key Laboratory of Chemical Synthesis and Environmental Pollution Control-Remediation Technology of Guizhou Province, Xingyi Normal University for Nationalities, Xingyi 562400, China
| | - Qing Zhou
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemical of Guizhou University, Huaxi District Guiyang 550025, China
| | - Yongjun Wu
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemical of Guizhou University, Huaxi District Guiyang 550025, China
| | - Wei Xue
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemical of Guizhou University, Huaxi District Guiyang 550025, China
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10
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Li L, Zhou Q, Li L, Ran T, Wang W, Liu C, Chen J, Sun T, Chen Y, Feng X, Zhang F, Xu S. Structural insight into subunit F of respiratory chain complex I from Xanthomonas oryzae pv. oryzae inhibition by parthenolide. PEST MANAGEMENT SCIENCE 2024; 80:2679-2688. [PMID: 38284296 DOI: 10.1002/ps.7974] [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: 12/12/2023] [Revised: 01/10/2024] [Accepted: 01/13/2024] [Indexed: 01/30/2024]
Abstract
BACKGROUND Bacterial leaf blight caused by Xanthomonas oryzae pv. oryzae (Xoo) is one of the most serious diseases of rice, and there is a lack of bactericides for controlling this disease. We previously found parthenolide (PTL) is a potential lead for developing bactericides against Xoo, and subunit F of respiratory chain complex I (NuoF) is an important target protein of PTL. However, the binding modes of PTL with NuoF need further elucidation. RESULTS In this study, we obtained the crystal structure of Xoo NuoEF (complex of subunit E and F of respiratory chain complex I) with a resolution of 2.36 Å, which is the first report on the protein structure of NuoEF in plant-pathogenic bacteria. The possible binding sites of PTL with NuoF (Cys105 and Cys187) were predicted with molecular docking and mutated into alanine using a base mismatch method. The mutated proteins were expressed in Escherichia coli and purified with affinity chromatography. The binding abilities of PTL with mutated proteins were investigated via pull-down assay and BIAcore analysis, which revealed that double mutation of Cys105 and Cys187 in NuoF severely affected the binding ability of PTL with NuoF. In addition, the binding modes were further simulated with combined quantum mechanical/molecular mechanical calculations, and the results indicated that PTL may have a stronger binding with Cys105 than Cys187. CONCLUSION NuoEF protein structure of Xoo was resolved, and Cys105 and Cys187 in NuoF are important binding sites of PTL. This study further clarified the action mechanism of PTL against Xoo, and will promote the innovation of bactericides targeting Xoo complex I. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Lei Li
- College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing, China
| | - Qian Zhou
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Jiangsu Province Engineering Research Center of Eco-cultivation and High-value Utilization of Chinese Medicinal Materials, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Linwei Li
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Jiangsu Province Engineering Research Center of Eco-cultivation and High-value Utilization of Chinese Medicinal Materials, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Tingting Ran
- Department of Microbiology, College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Weiwu Wang
- Department of Microbiology, College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Chenyang Liu
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Jiangsu Province Engineering Research Center of Eco-cultivation and High-value Utilization of Chinese Medicinal Materials, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Jin Chen
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Jiangsu Province Engineering Research Center of Eco-cultivation and High-value Utilization of Chinese Medicinal Materials, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Tiemin Sun
- Key Laboratory of Structure-based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, China
| | - Yu Chen
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Jiangsu Province Engineering Research Center of Eco-cultivation and High-value Utilization of Chinese Medicinal Materials, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Xu Feng
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Jiangsu Province Engineering Research Center of Eco-cultivation and High-value Utilization of Chinese Medicinal Materials, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Feng Zhang
- College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing, China
| | - Shu Xu
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Jiangsu Province Engineering Research Center of Eco-cultivation and High-value Utilization of Chinese Medicinal Materials, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
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11
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An J, Pan N, Liu C, Chen H, Fei Q, Gan X, Wu W. Synthesis, biological evaluation, and molecular docking of novel ferulic acid derivatives containing a 1,3,4-oxadiazole thioether and trifluoromethyl pyrimidine skeleton. RSC Adv 2024; 14:16218-16227. [PMID: 38769972 PMCID: PMC11103566 DOI: 10.1039/d4ra01765j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Accepted: 04/24/2024] [Indexed: 05/22/2024] Open
Abstract
In this study, 24 novel ferulic acid derivatives containing 1,3,4-oxadiazole thioether and trifluoromethyl pyrimidine were designed and synthesized. Bioactivity assay showed that some of the target compounds exhibited moderate to good antifungal activity against Botryosphaeria dothidea BD), Phomopsis sp. (PS), Botrytis cinerea (BC), Fusarium spp. (FS), Fusarium graminearum (FG), and Colletotrichum sp. (CS). Especially, compound 6f demonstrated superior antifungal activity against Phomopsis sp., with an EC50 value of 12.64 μg mL-1, outperforming pyrimethanil (35.16 μg mL-1) and hymexazol (27.01 μg mL-1). Meanwhile, compound 6p showed strong antibacterial activity against X. axonopodis pv. citri (XAC) in vitro, with an inhibition ratio of 85.76%, which was higher than thiodiazole copper's 76.59% at 100 μg mL-1. Furthermore, molecular docking simulations elucidated that compound 6f engaged in hydrogen bonding with the succinate dehydrogenase (SDH) enzyme at SER-17, SER-39, ARG-14 and ARG-43 sites, clarifying its mode of action. This study highlights the potential of these novel ferulic acid derivatives as promising agents for controlling fungal and bacterial threats to plant health. To the best of our knowledge, this study represents the first report on the antifungal and antibacterial properties of ferulic acid derivatives containing 1,3,4-oxadiazole thioether and trifluoromethyl pyrimidine skeleton.
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Affiliation(s)
- Jiansong An
- School of Food Science and Engineering, Guiyang University Guiyang 550005 China
| | - Nianjuan Pan
- School of Food Science and Engineering, Guiyang University Guiyang 550005 China
| | - Chunyi Liu
- School of Food Science and Engineering, Guiyang University Guiyang 550005 China
| | - Haijiang Chen
- School of Food Science and Engineering, Guiyang University Guiyang 550005 China
| | - Qiang Fei
- School of Food Science and Engineering, Guiyang University Guiyang 550005 China
| | - Xiuhai Gan
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University Guiyang 550025 China
| | - Wenneng Wu
- School of Food Science and Engineering, Guiyang University Guiyang 550005 China
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12
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Liu YH, Li CK, Nie MY, Wang FL, Ren XL, Jin LH, Zhou X. Sulfonate derivatives bearing an amide unit: design, synthesis and biological activity studies. BMC Chem 2024; 18:46. [PMID: 38449054 PMCID: PMC10919044 DOI: 10.1186/s13065-024-01151-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Accepted: 02/22/2024] [Indexed: 03/08/2024] Open
Abstract
Pest disasters which occurs on crops is a serious problem that not only cause crop yield loss or even crop failure but can also spread a number of plant diseases.Sulfonate derivatives have been widely used in insecticide and fungicide research in recent years. On this basis, a series of sulfonate derivatives bearing an amide unit are synthesized and the biological activities are evaluated. The bioassay results showed that compounds A8, A13, A16, B1, B3, B4, B5, B10, B12 - 20, C3, C5, C9, C10, C14, C15, C17 and C19 showed 100% activity at a concentration of 500 µg/mL against the Plutella xylostella (P. xylostella). Among them, B15 which contains a thiadiazole sulfonate structure still shows 100% activity at 50 µg/mL concentration against P. xylostella and had the lowest median lethal concentration (LC50) (7.61 µg/mL) among the target compounds. Further mechanism studies are conducted on compounds with better insecticidal activity. Molecular docking results shows that B15 formed hydrophobic interactions π-π and hydrogen bonds with the indole ring of Trp532 and the carboxyl group of Asp384, respectively, with similar interaction distances or bond lengths as those of diflubenzuron. Moreover, chitinase inhibition assays are performed to further demonstrate its mode of action. In addition, the anti-bacterial activity of the series of compounds is also tested and the results showed that the series of compounds has moderate biological activity against Xanthomonas oryzae pv. oryzae (Xoo) and Xanthomonas oryzae pv. oryzicola (Xoc), with inhibition rates of 91%, 92% and 92%, 88% at the concentration of 100 µg/mL, respectively. Our study indicates that B15 can be used as a novel insecticide for crop protection.
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Affiliation(s)
- You-Hua Liu
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, 550025, China
| | - Chang-Kun Li
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, 550025, China
| | - Mao-Yu Nie
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, 550025, China
| | - Fa-Li Wang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, 550025, China
| | - Xiao-Li Ren
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, 550025, China
| | - Lin-Hong Jin
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, 550025, China
| | - Xia Zhou
- National Key Laboratory of Green Pesticide, 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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13
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Zhou H, Li QX, Zeng L, Cao C, Zhang T, Zhou Y, He H. Uracil hydrazones: design, synthesis, antimicrobial activities, and putative mode of action. PEST MANAGEMENT SCIENCE 2024; 80:414-425. [PMID: 37708309 DOI: 10.1002/ps.7771] [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: 07/07/2023] [Revised: 08/16/2023] [Accepted: 09/14/2023] [Indexed: 09/16/2023]
Abstract
BACKGROUND Crop diseases caused by plant pathogenic fungi and bacteria have led to substantial losses in global food production. Chemical pesticides have been widely used as a primary means to mitigate these issues. Nevertheless, the persistent and excessive use of pesticides has resulted in the emergence of microbial resistance. Moreover, the improper application and excessive utilization of pesticides can contribute to environmental pollution and the persistence of pesticide residues. Consequently, the development of novel and highly effective bactericides and fungicides to combat plant pathogens holds immense practical importance. RESULTS A series of uracil hydrazones IV-B was deliberately designed and evaluated for their antimicrobial efficacy. The results of bioassays indicated that most IV-B exhibited >80% inhibition against the fungal species Monilia fructigena and Sclerotium rolfsii, as well as the bacterial species Clavibacter michiganensis subsp. michiganensis, Xanthomonas oryzae pv. oryzae, and Ralstonia solanacearum, at 50 μg/mL in vitro. In vivo, IV-B20 showed 89.9% of curative and 71.8% of protective activities against C. michiganensis subsp. michiganensis at 100 μg/mL superior to thiodiazole copper and copper hydroxide. IV-B20 also showed excellent protective activity against M. fructigena (96.3% at 200 μg/mL) and S. rolfsii (80.4% at 1000 μg/mL), which were greater than chlorothalonil and equivalent to thifluzamide. Mechanistic studies revealed that IV-B20 induced oxidative damage in pathogenic bacteria and promoted the leakage of cellular contents. CONCLUSION This study suggests that IV-B20 with uracil hydrazone skeleton has great potential as an antimicrobial candidate. These findings lay a foundation for practical application in agriculture. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Huan Zhou
- Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, China
| | - Qing X Li
- Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, Honolulu, HI, USA
| | - Lei Zeng
- Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, China
| | - Congwang Cao
- Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, China
| | - Tuotuo Zhang
- Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, China
| | - Yuan Zhou
- Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, China
| | - Hongwu He
- Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, China
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14
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Pan N, Wang H, An J, Liu C, Chen H, Fei Q, Li P, Wu W. Discovery of Novel Compounds for Combating Rising Severity of Plant Diseases Caused by Fungi and Viruses. ACS OMEGA 2024; 9:1424-1435. [PMID: 38222640 PMCID: PMC10785787 DOI: 10.1021/acsomega.3c07820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 12/13/2023] [Accepted: 12/15/2023] [Indexed: 01/16/2024]
Abstract
In recent years, the severity of plant diseases caused by plant pathogenic fungi and viruses has been on the rise. However, there is a limited availability of pesticide chemicals in the market for effectively controlling both fungal and viral infections. To solve this problem, a series of novel pyrimidine derivatives containing a 1,3,4-oxadiazole thioether fragment were synthesized. Among them, compound 6s exhibited remarkable in vivo protection activity against tobacco mosaic virus, demonstrating the superior 50% effective concentration (EC50) value of 0.42 μM, outperforming ningnanmycin (0.60 μM). Meanwhile, compound 6s exhibited remarkable antifungal activity against Botrytis cinerea Pers. in postharvest blueberry in vitro, with an EC50 value of 0.011 μM, surpassing the inhibition rate of Pyrimethanil (0.262 μM). Additionally, compound 6s also demonstrated remarkable curative and protection activities against blueberry fruit gray mold in vivo, with control efficiencies of 54.2 and 60.4% at 200 μg/mL concentration, respectively, which were comparable to those of Pyrimethanil (49.3 and 63.9%, respectively). Scanning electron microscopy showed that the compound 6s-treated hyphae of B. cinerea Pers. in postharvest blueberry became abnormally collapsed and shriveled. Furthermore, the molecular docking simulation demonstrated that compound 6s formed hydrogen bonds with SER-17, ARG-43, and SER-39 of succinate dehydrogenase (SDH), providing a possible explanation for the mechanism of action between the target compounds and SDH. This study represents the first report on the antiviral and antifungal activities of novel pyrimidine derivatives containing a 1,3,4-oxadiazole thioether fragment.
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Affiliation(s)
- Nianjuan Pan
- School
of Food Science and Engineering, Guiyang
University, Guiyang 550005, China
| | - Hui Wang
- School
of Food Science and Engineering, Guiyang
University, Guiyang 550005, China
| | - Jiansong An
- School
of Food Science and Engineering, Guiyang
University, Guiyang 550005, China
| | - Chunyi Liu
- School
of Food Science and Engineering, Guiyang
University, Guiyang 550005, China
| | - Haijiang Chen
- School
of Food Science and Engineering, Guiyang
University, Guiyang 550005, China
| | - Qiang Fei
- School
of Food Science and Engineering, Guiyang
University, Guiyang 550005, China
| | - Pei Li
- Qiandongnan
Engineering and Technology Research Center for Comprehensive Utilization
of National Medicine, Kaili University, Kaili 556011, China
| | - Wenneng Wu
- School
of Food Science and Engineering, Guiyang
University, Guiyang 550005, China
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15
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Zhang M, Feng S, Chen S, Zhou Y, Gong C, Xue W. Synthesis, antibacterial and antifungal activity of myricetin derivatives containing piperidine and amide fragments. PEST MANAGEMENT SCIENCE 2023; 79:4795-4808. [PMID: 37477984 DOI: 10.1002/ps.7675] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 07/06/2023] [Accepted: 07/18/2023] [Indexed: 07/23/2023]
Abstract
BACKGROUND Continuous use of synthetic bactericides and fungicides is causing pathogens to develop resistance, resulting in increased use of pesticides and affecting food security. The green pesticides derived from natural products could reduce or avoid 'pesticide hazards' caused by synthetic pesticides as a result of their unique mechanism of action. Therefore, it is of great significance to create green pesticides with novel structures. RESULTS Herein, 30 novel myricetin derivatives containing piperidine and amide fragments were designed and synthesized using active group splicing. Among them, compound Z30 had excellent inhibitory effect against Xanthomonas oryzae pv. Oryzae (Xoo) with the half effective concentration (EC50 ) of 2.7 μg mL-1 . Compound Z26 not only exhibited better antibacterial activity against Xaxonopodis pv. Citri (Xac) with EC50 of 3.9 μg mL-1 , but also displayed higher antifungal activity against Rhizoctonia solani (Rs) with EC50 of 8.3 μg mL-1 . In vivo experiments proved that Z30 against bacterial blight of rice and Z26 against rice blast exhibits significant protective and curative effect. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) showed that Z26 and Z30 could change the integrity of cell wall and membrane of pathogen Xoo, Xac and Rs, resulting in cytoplasmic leakage and eventually death. Enzymatic assay, molecular docking and molecular dynamics simulations (MDs) indicated that Z26 could be used as a potential succinate dehydrogenase inhibitor (SDHI). CONCLUSION Z26 and Z30 significantly reduced the pathogenicity of the pathogens, which provided a new idea and direction for the development of green pesticides. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Miaohe Zhang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals, Guizhou University, Guiyang, P.R. China
- School of Chemical Engineering, Guizhou Institute of Technology, Guiyang, P.R. China
| | - Shuang Feng
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals, Guizhou University, Guiyang, P.R. China
- School of Chemical Engineering, Guizhou Institute of Technology, Guiyang, P.R. China
| | - Shuai Chen
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals, Guizhou University, Guiyang, P.R. China
| | - Yuanxiang Zhou
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals, Guizhou University, Guiyang, P.R. China
| | - Chenyu Gong
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals, Guizhou University, Guiyang, P.R. China
| | - Wei Xue
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals, Guizhou University, Guiyang, P.R. China
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16
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Li T, Lv M, Wen H, Xu H. Discovery of 3-Formyl- N-(un)Substituted Benzylindole Pyrimidines as an Acaricidal Agent and Their Mechanism of Action. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023. [PMID: 37910844 DOI: 10.1021/acs.jafc.3c06409] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
To discover the pronounced acaricide candidate, herein, a series of 3-formyl-N-(un)substituted benzylindole pyrimidines were prepared by structural modification of indoles at the N-1 and C-3 positions via the successive Vilsmeier-Haack-Arnold (VHA), aldol condensation, and cyclization reactions. The steric structures of nine compounds were undoubtedly confirmed by X-ray single-crystallography. Against Tetranychus cinnabarinus Boisduval, compounds V-15, V-31, V-34, V-42, V-44, and V-60 exhibited promising acaricidal activity with LC50 values of 0.299-0.481 mg/mL. In particular, compound V-34 displayed 4.2 times the acaricidal activity of its precursor 6-methylindole. Scanning electron microscopy (SEM) imaging revealed that the construction of the cuticle layer of V-34-treated T. cinnabarinus was seriously destroyed. Furthermore, RNA-Seq analysis indicated that compound V-34 could regulate the homeostasis metabolism of T. cinnabarinus through arachidonic acid and linoleic acid metabolism and lysosome pathways. These results suggested that compound V-34 can be further studied as a lead acaricidal agent.
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Affiliation(s)
- Tianze Li
- College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Min Lv
- College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Houpeng Wen
- College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Hui Xu
- College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
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17
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An J, Lan W, Fei Q, Li P, Wu W. Synthesis, Antifungal, and Antibacterial Activities of Novel Benzoylurea Derivatives Containing a Pyrimidine Moiety. Molecules 2023; 28:6498. [PMID: 37764273 PMCID: PMC10535663 DOI: 10.3390/molecules28186498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 09/02/2023] [Accepted: 09/06/2023] [Indexed: 09/29/2023] Open
Abstract
To explore more efficient and less toxic antibacterial and antifungal pesticides, we utilized 2,6-difluorobenzamide as a starting material and ultimately synthesized 23 novel benzoylurea derivatives containing a pyrimidine moiety. Their structures were characterized and confirmed by 1H NMR, 13C NMR, 19F NMR, and HRMS. The bioassay results demonstrated that some of the title compounds exhibited moderate to good in vitro antifungal activities against Botrytis cinerea in cucumber, Botrytis cinerea in tobacco, Botrytis cinerea in blueberry, Phomopsis sp., and Rhizoctonia solani. Notably, compounds 4j and 4l displayed EC50 values of 6.72 and 5.21 μg/mL against Rhizoctonia solani, respectively, which were comparable to that of hymexazol (6.11 μg/mL). Meanwhile, at 200 and 100 concentrations, the target compounds 4a-4w exhibited lower in vitro antibacterial activities against Xanthomonas oryzae pv. oryzicola and Xanthomonas citri subsp. citri, respectively, compared to those of thiodiazole copper. Furthermore, the molecular docking simulation demonstrated that compound 4l formed hydrogen bonds with SER-17 and SER-39 of succinate dehydrogenase (SDH), providing a possible explanation for the mechanism of action between the target compounds and SDH. This study represents the first report on the antifungal and antibacterial activities of novel benzoylurea derivatives containing a pyrimidine moiety.
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Affiliation(s)
- Jiansong An
- School of Food Science and Engineering, Guiyang University, Guiyang 550005, China; (J.A.); (W.L.); (Q.F.)
| | - Wenjun Lan
- School of Food Science and Engineering, Guiyang University, Guiyang 550005, China; (J.A.); (W.L.); (Q.F.)
| | - Qiang Fei
- School of Food Science and Engineering, Guiyang University, Guiyang 550005, China; (J.A.); (W.L.); (Q.F.)
| | - Pei Li
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550004, China
- Natural Products Research Center of Guizhou Province, Guiyang 550000, China
- Qiandongnan Engineering and Technology Research Center for Comprehensive Utilization of National Medicine, Kaili University, Kaili 556011, China
| | - Wenneng Wu
- School of Food Science and Engineering, Guiyang University, Guiyang 550005, China; (J.A.); (W.L.); (Q.F.)
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18
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Li PJ, Yan Y, Wu N, Yang YH, An L, Tian GM, Bao XP. Design, synthesis, crystal structure, and antimicrobial activities of new quinazoline derivatives containing both the sulfonate ester and piperidinylamide moieties. PEST MANAGEMENT SCIENCE 2023. [PMID: 36924250 DOI: 10.1002/ps.7459] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 03/06/2023] [Accepted: 03/16/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND To discover more efficient antimicrobial agents in agriculture, a series of new quinazoline derivatives bearing both sulfonate ester and piperidine-4-carboxamide moieties were synthesized and assessed for their antimicrobial effects. RESULTS All of the target compounds were fully characterized by proton (1 H) nuclear magnetic resonance (NMR), carbon-13 (13 C) NMR, and high-resolution mass spectroscopy (HRMS), and compound III-6 containing a 3-bromophenyl substituent was clearly confirmed via single-crystal X-ray diffraction analysis. The bioassay results indicated that some compounds displayed noticeable inhibitory effects in vitro against Xanthomonas oryzae pv. oryzicola (Xoc). Further measurements of median effective concentration (EC50 ) values showed that compound III-17 bearing a 4-methoxyphenyl group had the best anti-Xoc efficacy (EC50 = 12.4 μg mL-1 ), far better than the commercialized bismerthiazol (77.5 μg mL-1 ). Moreover, this compound also demonstrated good protection and curative activities in vivo against rice bacterial leaf streak caused by Xoc. CONCLUSION Compound III-17 had a good potential for further development as a new bactericide for controlling Xoc. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Pei-Jia Li
- National Key Laboratory of Green Pesticides, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for Research and Development of Fine Chemicals, Guizhou University, Guiyang, People's Republic of China
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, People's Republic of China
| | - Ya Yan
- National Key Laboratory of Green Pesticides, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for Research and Development of Fine Chemicals, Guizhou University, Guiyang, People's Republic of China
| | - Nan Wu
- National Key Laboratory of Green Pesticides, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for Research and Development of Fine Chemicals, Guizhou University, Guiyang, People's Republic of China
| | - Ye-Hui Yang
- National Key Laboratory of Green Pesticides, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for Research and Development of Fine Chemicals, Guizhou University, Guiyang, People's Republic of China
| | - Lian An
- National Key Laboratory of Green Pesticides, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for Research and Development of Fine Chemicals, Guizhou University, Guiyang, People's Republic of China
| | - Guang-Min Tian
- National Key Laboratory of Green Pesticides, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for Research and Development of Fine Chemicals, Guizhou University, Guiyang, People's Republic of China
| | - Xiao-Ping Bao
- National Key Laboratory of Green Pesticides, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for Research and Development of Fine Chemicals, Guizhou University, Guiyang, People's Republic of China
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Design, Synthesis and Bioactivity of Novel Pyrimidine Sulfonate Esters Containing Thioether Moiety. Int J Mol Sci 2023; 24:ijms24054691. [PMID: 36902121 PMCID: PMC10003536 DOI: 10.3390/ijms24054691] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 02/14/2023] [Accepted: 02/16/2023] [Indexed: 03/04/2023] Open
Abstract
Pesticides play an important role in crop disease and pest control. However, their irrational use leads to the emergence of drug resistance. Therefore, it is necessary to search for new pesticide-lead compounds with new structures. We designed and synthesized 33 novel pyrimidine derivatives containing sulfonate groups and evaluated their antibacterial and insecticidal activities. Results: Most of the synthesized compounds showed good antibacterial activity against Xanthomonas oryzae pv. Oryzae (Xoo), Xanthomonas axonopodis pv. Citri (Xac), Pseudomonas syringae pv. actinidiae (Psa) and Ralstonia solanacearum (Rs), and certain insecticidal activity. A5, A31 and A33 showed strong antibacterial activity against Xoo, with EC50 values of 4.24, 6.77 and 9.35 μg/mL, respectively. Compounds A1, A3, A5 and A33 showed remarkable activity against Xac (EC50 was 79.02, 82.28, 70.80 and 44.11 μg/mL, respectively). In addition, A5 could significantly improve the defense enzyme (superoxide dismutase, peroxidase, phenylalanine ammonia-lyase and catalase) activity of plants against pathogens and thus improve the disease resistance of plants. Moreover, a few compounds also showed good insecticidal activity against Plutella xylostella and Myzus persicae. The results of this study provide insight into the development of new broad-spectrum pesticides.
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Zhu JJ, Guo T, Zhang ZW, Qian H, Tian P, Yu KY, Wu WJ, Zhang JW. Design, Synthesis, Insecticidal Activities and Molecular Docking of Sulfonamide Derivatives Containing Propargyloxy or Pyridine Groups. Chem Biodivers 2023; 20:e202201020. [PMID: 36536172 DOI: 10.1002/cbdv.202201020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 12/18/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022]
Abstract
The discovery of new highly active molecules from natural products is a common method to create new pesticides. Celangulin V targeting Mythimna separate (M. separate) midgut V-ATPase H subunit, has received considerable attention for its excellent insecticidal activity and unique mechanism of action. Therefore, combined with our preliminary work, thirty-seven sulfonamide derivatives bearing propargyloxy or pyridine groups were systematically synthesized to search for insecticidal candidate compounds with low cost and high efficiency on the H subunit of V-ATPase. Bioactive results showed that compounds A2-A4 and A6-A7 exhibited a better bioactivity with median effective concentration (LC50 ) values (2.78, 3.11, 3.34, 3.54 and 2.48 mg/mL, respectively) against third-instar larvae of M. separate than Celangulin V (LC50 =18.1 mg/mL). Additionally, molecular docking experiments indicated that these molecules may act on the H subunit of V-ATPase. Based on the above results, these compounds provide new ideas for the discovery of insecticides.
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Affiliation(s)
- Jian-Jun Zhu
- College of Chemistry & Pharmacy, Northwest A&F University, Xian Yang Shi, Yangling, 712100, China
| | - Tao Guo
- College of Chemistry & Pharmacy, Northwest A&F University, Xian Yang Shi, Yangling, 712100, China
| | - Zi-Wei Zhang
- College of Chemistry & Pharmacy, Northwest A&F University, Xian Yang Shi, Yangling, 712100, China
| | - Hao Qian
- College of Chemistry & Pharmacy, Northwest A&F University, Xian Yang Shi, Yangling, 712100, China
| | - Peng Tian
- College of Chemistry & Pharmacy, Northwest A&F University, Xian Yang Shi, Yangling, 712100, China
| | - Ke-Yin Yu
- College of Chemistry & Pharmacy, Northwest A&F University, Xian Yang Shi, Yangling, 712100, China
| | - Wen-Jun Wu
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Yangling, 712100, China
| | - Ji-Wen Zhang
- College of Chemistry & Pharmacy, Northwest A&F University, Xian Yang Shi, Yangling, 712100, China.,Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Yangling, 712100, China
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Huang Y, Li H, Zhao G, Bai Q, Huang M, Luo D, Li X. Ethylicin Inhibition of Xanthomonas oryzae pv. oryzicola In Vitro and In Vivo. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:1405-1416. [PMID: 36644843 DOI: 10.1021/acs.jafc.2c07327] [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
Infestation of rice with the bacterium Xanthomonas oryzae pv. oryzicola (Xoc) causes the serious disease bacterial leaf streak (BLS). We studied the effect of ethylicin, a broad-spectrum bactericide, on Xoc both in vivo and in vitro. Ethylicin increases the defensive enzyme activities and defensive genes expression of rice. Ethylicin also significantly inhibited Xoc activity in vitro compared with other commercial bactericides. The half-maximal effective concentration (EC50) of ethylicin was 2.12 μg/mL. It has been shown that ethylicin can inhibit Xoc quorum sensing through the production of extracellular polysaccharides and enzymes, which disrupt the Xoc cell membrane. We used proteomic analysis to identify two oxidative phosphorylation pathway proteins (ACU12_RS13405 and ACU12_RS13355) which affected the virulence of Xoc and validated them using quantitative real-time polymerase chain reaction (qRT-PCR). The results indicate that ethylicin can increase the defense responses of rice and control Xoc proliferation.
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Affiliation(s)
- Yajiao 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, Guiyang550025, China
| | - Hongde 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, Guiyang550025, China
| | - Guili Zhao
- College of Chemical Engineering, Guizhou Institute of Technology, Guiyang550003, China
| | - Qian Bai
- 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, Guiyang550025, 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, Guiyang550025, China
| | - Dan Luo
- 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, Guiyang550025, 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, Guiyang550025, China
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