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Wang Y, Yu Y, Hou YP, Mao XW, Liu ZL, Cui J, Wang B, Xu S, Qian YY, Jiang YQ, Wei M, Song PP. Crucial Role of the Ca 2+/CN Signaling Pathway in the Antifungal Activity of Seselin against Botrytis cinerea. J Agric Food Chem 2023. [PMID: 37313981 DOI: 10.1021/acs.jafc.3c01474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Botrytis cinerea causes gray mold in many fruit and vegetable crops. We previously found that Seselin (SL) displayed antifungal activity against B. cinerea (EC50 = 6.1 μg·mL-1), and this study investigated the effects of Ca2+ and the Ca2+/CN signaling pathway on its antifungal activity against B. cinerea. The results indicated that exogenous Ca2+, Cyclosporine A, and Verapamil reduced the sensitivity of SL against B. cinerea; SL significantly reduced the intracellular Ca2+ concentration in the hyphae; the sensitivity of strains ΔbcCCH1 and ΔbcMID1 to SL were significantly increased; and the expressions of CCH1, MID1, CNA, PMC1, and PMR1 genes of the Ca2+/CN signaling pathway were significantly downregulated by SL treatment. Hence, SL is a potential compound for developing fungicides against B. cinerea. SL dramatically reduces intracellular Ca2+ concentration and disturbs Ca2+ homeostasis, leading to cell death. The Ca2+/CN signaling pathway plays an important role in the antifungal activity of SL against B. cinerea.
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Affiliation(s)
- Yu Wang
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, Jiangsu, China
| | - Yao Yu
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, Jiangsu, China
| | - Yi-Ping Hou
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China
| | - Xue-Wei Mao
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China
| | - Zong-Liang Liu
- Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Yantai 264005, Shandong, China
| | - Jian Cui
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, Jiangsu, China
| | - Bi Wang
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, Jiangsu, China
| | - Shu Xu
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, Jiangsu, China
| | - Yi-Yun Qian
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, Jiangsu, China
| | - Yan-Qin Jiang
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, Jiangsu, China
| | - Min Wei
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, Jiangsu, China
| | - Ping-Ping Song
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, Jiangsu, China
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Somu C, Karuppiah H, Sundaram J. Antiviral activity of seselin from Aegle marmelos against nuclear polyhedrosis virus infection in the larvae of silkworm, Bombyx mori. J Ethnopharmacol 2019; 245:112155. [PMID: 31449858 DOI: 10.1016/j.jep.2019.112155] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 06/19/2019] [Accepted: 08/10/2019] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Traditional Indian medicine has utilized Aeglemarmelos (L.) Corr. commonly called as bael in several indigenous systems against various diseases. Bioactive components isolated from various plant parts of A. marmelos were used in ethno-medicine. More precisely they are known for its antiviral property against various human and animal viruses. AIM OF THE STUDY The study was conducted to investigate the antiviral activity of A.marmelos against Bombyx mori nucleopolyhedrovirus (BmNPV). MATERIALS AND METHODS Among the various crude extracts tested, hexane extracts of leaves of A. marmelos with promising anti-BmNPV activity was subjected to bioactivity guided fractionation based on column chromatography. Out of 40 fractions obtained from the fractionation, fractions showing similar TLC profiles were pooled into 14 fractions. A fraction with potential activity was used to purify a molecule with anti-BmNPV activity. This molecule was characterized through structural and functional analyses. RESULTS The functionally and structurally characterized molecule in the fraction with prospective anti-BmNPV activity revealed a single crystal compound 'seselin' (8, 8-dimethyl pyrido oxazine-2-one). CONCLUSION It is therefore understood that this seselin compound could be used as a natural medicine for the management of NPV infection in the silkworm larvae under commercial conditions after suitable field evaluations.
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Affiliation(s)
- Chitra Somu
- Department of Zoology, University of Madras, Guindy Campus, Chennai, 600025, India
| | - Hilda Karuppiah
- Department of Zoology, University of Madras, Guindy Campus, Chennai, 600025, India
| | - Janarthanan Sundaram
- Department of Zoology, University of Madras, Guindy Campus, Chennai, 600025, India.
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Mukandiwa L, Ahmed A, Eloff JN, Naidoo V. Isolation of seselin from Clausena anisata (Rutaceae) leaves and its effects on the feeding and development of Lucilia cuprina larvae may explain its use in ethnoveterinary medicine. J Ethnopharmacol 2013; 150:886-891. [PMID: 24095830 DOI: 10.1016/j.jep.2013.09.037] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2013] [Revised: 09/11/2013] [Accepted: 09/13/2013] [Indexed: 06/02/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The leaves of Clausena anisata are used traditionally to expel maggots from wounds of animals in Zimbabwe. We have previously proved in the laboratory that the plant certainly affects the behaviour and growth of blowfly larvae. The objective of this study was to isolate and identify the active compounds responsible for this activity. MATERIALS AND METHODS The acetone extract of Clausena anisata leaf powder was separated by solvent-solvent partition into five fractions. The n-hexane fraction was the most active in the larvicidal assay and therefore subjected to open column chromatography on silica gel. RESULTS The isolated compound was identified by nuclear magnetic resonance (NMR) and mass spectroscopy (MS) as the pyranocoumarin, seselin, chemically known as 2',2'-dimethylpyranocoumarin. It inhibited feed intake in the first and second instars of blowfly larvae at the minimum concentration tested of 1 ppm resulting in significant lower mass pupae (13.5±0.5 mg and 22.4±0.4 mg for the first and second instar larvae respectively) compared to the solvent control group (26.19±0.8 mg) (p<0.05). CONCLUSIONS This is the first report of the isolation of seselin from the leaves of Clausena anisata and the first report of the compound having an effect against blowfly larvae.
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Affiliation(s)
- L Mukandiwa
- Phytomedicine Programme, Department of Paraclinical Sciences, Faculty of Veterinary Science, University of Pretoria, P. Bag X04, Onderstepoort 0110, South Africa.
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