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Serrano R, González-Menéndez V, Tormo JR, Genilloud O. Development and Validation of a HTS Platform for the Discovery of New Antifungal Agents against Four Relevant Fungal Phytopathogens. J Fungi (Basel) 2023; 9:883. [PMID: 37754991 PMCID: PMC10532314 DOI: 10.3390/jof9090883] [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: 07/28/2023] [Revised: 08/22/2023] [Accepted: 08/25/2023] [Indexed: 09/28/2023] Open
Abstract
Fungal phytopathogens are the major agents responsible for causing severe damage to and losses in agricultural crops worldwide. Botrytis cinerea, Colletotrichum acutatum, Fusarium proliferatum, and Magnaporthe grisea are included in the top ten fungal phytopathogens that impose important plant diseases on a broad range of crops. Microbial natural products can be an attractive alternative for the biological control of phytopathogens. The objective of this work was to develop and validate a High-throughput Screening (HTS) platform to evaluate the antifungal potential of chemicals and natural products against these four important plant pathogens. Several experiments were performed to establish the optimal assay conditions that provide the best reproducibility and robustness. For this purpose, we have evaluated two media formulations (SDB and RPMI-1640), several inoculum concentrations (1 × 106, 5 × 105 and 5 × 106 conidia/mL), the germination curves for each strain, each strain's tolerance to dimethyl sulfoxide (DMSO), and the Dose Response Curves (DRC) of the antifungal control (Amphotericin B). The assays were performed in 96-well plate format, where absorbance at 620 nm was measured before and after incubation to evaluate growth inhibition, and fluorescence intensity at 570 nm excitation and 615 nm emission was monitored after resazurin addition for cell viability evaluation. Quality control parameters (RZ' Factors and Signal to Background (S/B) ratios) were determined for each assay batch. The assay conditions were finally validated by titrating 40 known relevant antifungal agents and testing 2400 microbial natural product extracts from the MEDINA Library through both HTS agar-based and HTS microdilution-based set-ups on the four phytopathogens.
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Affiliation(s)
- Rachel Serrano
- Fundación MEDINA, Av. Conocimiento 34, Health Sciences Technology Park, 18016 Granada, Spain; (J.R.T.); (O.G.)
| | - Víctor González-Menéndez
- Fundación MEDINA, Av. Conocimiento 34, Health Sciences Technology Park, 18016 Granada, Spain; (J.R.T.); (O.G.)
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2
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Benzothioate Glycoside from a terrestrial Streptomyces sp. TBRC 11511 from Thailand. J Antibiot (Tokyo) 2022; 75:583-588. [DOI: 10.1038/s41429-022-00554-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 08/01/2022] [Accepted: 08/02/2022] [Indexed: 11/08/2022]
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3
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Zang Z, Yang W, Cui H, Cai R, Li C, Zou G, Wang B, She Z. Two Antimicrobial Heterodimeric Tetrahydroxanthones with a 7,7'-Linkage from Mangrove Endophytic Fungus Aspergillus flavus QQYZ. Molecules 2022; 27:molecules27092691. [PMID: 35566042 PMCID: PMC9103106 DOI: 10.3390/molecules27092691] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 04/15/2022] [Accepted: 04/15/2022] [Indexed: 11/25/2022] Open
Abstract
Mangrove endophytic fungi represent significant and sustainable sources of novel metabolites with unique structures and excellent biological activities, attracting extensive chemical investigations. In this research, two novel heterodimeric tetrahydroxanthones, aflaxanthones A (1) and B (2), dimerized via an unprecedented 7,7′-linkage, a sp3-sp3 dimeric manner, were isolated from the mangrove endophytic fungus Aspergillus flavus QQYZ. Their structures were elucidated through high resolution electrospray ionization mass spectroscopy (HRESIMS) and nuclear magnetic resonance (NMR) spectroscopy, the absolute configurations of them were determined by a single-crystal X-ray diffraction combined with calculated electronic circular dichroism (ECD) spectra and a 1D potential energy scan. These compounds were evaluated for antifungal activities in vitro and exhibited broad-spectrum and potential antifungal activities against several pathogenic fungi with minimum inhibitory concentration (MIC) values in the range of 3.13–50 μM. They also performed moderate antibacterial activities against several bacteria with MIC values in the range of 12.5–25 μM. This research enriched the resources of lead compounds and templates for marine-derived antimicrobial drugs.
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Affiliation(s)
- Zhenming Zang
- School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China; (Z.Z.); (W.Y.); (G.Z.)
| | - Wencong Yang
- School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China; (Z.Z.); (W.Y.); (G.Z.)
| | - Hui Cui
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China;
| | - Runlin Cai
- College of Science, Shantou University, Shantou 515063, China;
| | - Chunyuan Li
- College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China;
| | - Ge Zou
- School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China; (Z.Z.); (W.Y.); (G.Z.)
| | - Bo Wang
- School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China; (Z.Z.); (W.Y.); (G.Z.)
- Correspondence: (B.W.); (Z.S.); Tel.: +86-20-84113356 (Z.S.)
| | - Zhigang She
- School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China; (Z.Z.); (W.Y.); (G.Z.)
- Correspondence: (B.W.); (Z.S.); Tel.: +86-20-84113356 (Z.S.)
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Cao HY, Yi C, Sun SF, Li Y, Liu YB. Anti-inflammatory Dimeric Tetrahydroxanthones from an Endophytic Muyocopron laterale. JOURNAL OF NATURAL PRODUCTS 2022; 85:148-161. [PMID: 35029398 DOI: 10.1021/acs.jnatprod.1c00878] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Twelve new dimeric tetrahydroxanthones, muyocoxanthones A-L (1-12), were isolated from the endophytic fungus, Muyocopron laterale. Their structures were characterized on the basis of the interpretation of NMR and HRESIMS data. The absolute configurations of 1-10 and 12 were unambiguously determined by ECD spectrum data and single-crystal X-ray diffraction analysis. Compounds 2, 6, and 11 showed inhibitory activity against the LPS-induced production of nitric oxide (NO) in RAW 264.7 cells with IC50 values of 5.2, 1.3, and 5.1 μM, respectively.
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Affiliation(s)
- Hai-Yan Cao
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Cheng Yi
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Sen-Feng Sun
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Yong Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Yun-Bao Liu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
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5
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Antifungal Secondary Metabolites Against Blast Fungus Magnaporthe oryzae. Fungal Biol 2022. [DOI: 10.1007/978-3-031-04805-0_2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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6
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Wu X, Chen Y, Li C, Zhang X, Tan X, Lv L, Liu Y, Zhang D. GroEL protein from the potential biocontrol agent Rhodopseudomonas palustris enhances resistance to rice blast disease. PEST MANAGEMENT SCIENCE 2021; 77:5445-5453. [PMID: 34331498 DOI: 10.1002/ps.6584] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 07/24/2021] [Accepted: 07/31/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND GroEL, which is a chaperone, plays a key role in maintaining protein homeostasis and, among other functions, serves to prevent protein misfolding and aggregation. In addition, the GroEL protein also has a significant effect on enhancing plant resistance and inhibiting plant diseases. However, the function of the GroEL protein in the inhibition of rice blast remains unknown. RESULTS Field experiment results show that photosynthetic bacteria PSB-06 have a good control effect on Magnaporthe oryzae. PSB-06 also can promote rice growth and enhance stress resistance. A GroEL protein which was separated and purified from photosynthetic bacteria had a significant antagonistic effect on appressorial formation and pathogenicity of Magnaporthe oryzae, meanwhile transcriptional analysis demonstrated that the GroEL protein could improve the expression of defense gene of rice. CONCLUSION Our results show that the photosynthetic bacteria Rhodopseudomonas palustris significantly controls rice blast disease. Its action involves an extracellular GroEL protein, which inhibits appressoria formation, antagonizes the pathogenicity of Magnaporthe oryzae and promotes a host defense response. The research results provide evidence of the potential of this photosynthetic bacterium as a biocontrol agent at least for rice blast control. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Xiyang Wu
- State Key Laboratory of Hybrid Rice and Institute of Plant Protection, Hunan Academy of Agricultural Sciences, Changsha, China
- Long Ping Branch, Graduate School of Hunan University, Changsha, China
| | - Yue Chen
- State Key Laboratory of Hybrid Rice and Institute of Plant Protection, Hunan Academy of Agricultural Sciences, Changsha, China
- Long Ping Branch, Graduate School of Hunan University, Changsha, China
| | - Chenggang Li
- State Key Laboratory of Hybrid Rice and Institute of Plant Protection, Hunan Academy of Agricultural Sciences, Changsha, China
| | - Xin Zhang
- State Key Laboratory of Hybrid Rice and Institute of Plant Protection, Hunan Academy of Agricultural Sciences, Changsha, China
| | - Xinqiu Tan
- State Key Laboratory of Hybrid Rice and Institute of Plant Protection, Hunan Academy of Agricultural Sciences, Changsha, China
- Long Ping Branch, Graduate School of Hunan University, Changsha, China
| | - Liang Lv
- Key Laboratory of Integrated Pest Management on Crops in Central China, Ministry of Agriculture, and Hubei Province Key Laboratory for Crop Diseases, Insect Pests and Weeds Control, Institute of Plant Protection & Soil Science, Hubei Academy of Agricultural Sciences, Wuhan, China
| | - Yong Liu
- State Key Laboratory of Hybrid Rice and Institute of Plant Protection, Hunan Academy of Agricultural Sciences, Changsha, China
- Long Ping Branch, Graduate School of Hunan University, Changsha, China
| | - Deyong Zhang
- State Key Laboratory of Hybrid Rice and Institute of Plant Protection, Hunan Academy of Agricultural Sciences, Changsha, China
- Long Ping Branch, Graduate School of Hunan University, Changsha, China
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7
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Lv XJ, Ding F, Wei YJ, Tan RX. Antiosteoporotic Tetrahydroxanthone Dimers from
Aspergillus brunneoviolaceus
FB
‐2 Residing in Human Gut. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Xiao Jing Lv
- State Key Laboratory Cultivation Base for TCM Quality and Efficacy, Nanjing University of Chinese Medicine Nanjing Jiangsu 210023 China
| | - Fei Ding
- State Key Laboratory Cultivation Base for TCM Quality and Efficacy, Nanjing University of Chinese Medicine Nanjing Jiangsu 210023 China
| | - Ying Jie Wei
- State Key Laboratory Cultivation Base for TCM Quality and Efficacy, Nanjing University of Chinese Medicine Nanjing Jiangsu 210023 China
| | - Ren Xiang Tan
- State Key Laboratory Cultivation Base for TCM Quality and Efficacy, Nanjing University of Chinese Medicine Nanjing Jiangsu 210023 China
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University Nanjing Jiangsu 210023 China
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Chakraborty M, Mahmud NU, Ullah C, Rahman M, Islam T. Biological and biorational management of blast diseases in cereals caused by Magnaporthe oryzae. Crit Rev Biotechnol 2021; 41:994-1022. [PMID: 34006149 DOI: 10.1080/07388551.2021.1898325] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Blast diseases, caused by the fungal pathogen Magnaporthe oryzae, are among the most destructive diseases that occur on at least 50 species of grasses, including cultivated cereals wheat, and rice. Although fungicidal control of blast diseases has widely been researched, development of resistance of the pathogen against commercially available products makes this approach unreliable. Novel approaches such as the application of biopesticides against the blast fungus are needed for sustainable management of this economically important disease. Antagonistic microorganisms, such as fungi and probiotic bacteria from diverse taxonomic genera were found to suppress blast fungi both in vitro and in vivo. Various classes of secondary metabolites, such as alkaloids, phenolics, and terpenoids of plant and microbial origin significantly inhibit fungal growth and may also be effective in managing blast diseases. Common modes of action of microbial biocontrol agents include: antibiosis, production of lytic enzymes, induction of systemic resistance in host plant, and competition for nutrients or space. However, the precise mechanism of biocontrol of the blast fungus by antagonistic microorganisms and/or their bioactive secondary metabolites is not well understood. Commercial formulations of biocontrol agents and bioactive natural products could be cost-effective and sustainable but their availability at this time is extremely limited. This review updates our knowledge on the infection pathway of the wheat blast fungus, catalogs naturally occurring biocontrol agents that may be effective against blast diseases, and discusses their role in sustainable management of the disease.
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Affiliation(s)
- Moutoshi Chakraborty
- Institute of Biotechnology and Genetic Engineering, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh
| | - Nur Uddin Mahmud
- Institute of Biotechnology and Genetic Engineering, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh
| | - Chhana Ullah
- Department of Biochemistry, Max Planck Institute for Chemical Ecology, Jena, Germany
| | - Mahfuzur Rahman
- WVU Extension Service, West Virginia University, Morgantown, WV, USA
| | - Tofazzal Islam
- Institute of Biotechnology and Genetic Engineering, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh
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9
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Sadorn K, Saepua S, Boonyuen N, Choowong W, Rachtawee P, Pittayakhajonwut P. Bioactive Dimeric Tetrahydroxanthones with 2,2'- and 4,4'-Axial Linkages from the Entomopathogenic Fungus Aschersonia confluens. JOURNAL OF NATURAL PRODUCTS 2021; 84:1149-1162. [PMID: 33852304 DOI: 10.1021/acs.jnatprod.0c01212] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Thirteen tetrahydroxanthone dimers, atrop-ascherxanthone A (1), ascherxanthones C-G (2-6), and confluxanthones A-G (7-13), were isolated from the entomopathogenic fungus Aschersonia confluens BCC53152. The chemical structures were determined based on analysis of NMR spectroscopic and mass spectrometric data. The absolute configurations of compounds 1 and 7 were confirmed by single-crystal X-ray diffraction experiments, while the configurations of other compounds were assigned based upon evidence from NOESY and NOEDIFF experiments, modified Mosher's method, and ECD spectroscopic data together with biogenetic considerations. Compounds 1, 3-5, 7-11, and 13 showed antimalarial activity against Plasmodium falciparum (K1, multidrug-resistant strain) (IC50 0.6-6.1 μM), antitubercular activity against Mycobacterium tuberculosis H37Ra (MIC 6.3-25.0 μg/mL), and cytotoxicity against NCI-H187 (IC50 0.5-3.5 μM) and Vero (IC50 0.9-6.1 μM) cells. All tested compounds except for compound 9 exhibited cytotoxicity against KB cells (IC50 1.3-9.7 μM).
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Affiliation(s)
- Karoon Sadorn
- Integrated Applied Chemistry Research Unit, Faculty of Science, King Mongkut's Institute of Technology Ladkrabang, Chalongkrung Road, Ladkrabang, Bangkok 10520, Thailand
- Department of Chemistry, Faculty of Science, King Mongkut's Institute of Technology Ladkrabang, Chalongkrung Road, Ladkrabang, Bangkok 10520, Thailand
| | - Siriporn Saepua
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Thailand Science Park, Phaholyothin Road, Khlong Luang, Pathum Thani 12120, Thailand
| | - Nattawut Boonyuen
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Thailand Science Park, Phaholyothin Road, Khlong Luang, Pathum Thani 12120, Thailand
- National Biobank of Thailand (NBT), National Science and Technology Development Agency (NSTDA), Thailand Science Park, Phaholyothin Road, Khlong Luang, Pathum Thani 12120, Thailand
| | - Wilunda Choowong
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Thailand Science Park, Phaholyothin Road, Khlong Luang, Pathum Thani 12120, Thailand
| | - Pranee Rachtawee
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Thailand Science Park, Phaholyothin Road, Khlong Luang, Pathum Thani 12120, Thailand
| | - Pattama Pittayakhajonwut
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Thailand Science Park, Phaholyothin Road, Khlong Luang, Pathum Thani 12120, Thailand
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Bunyapaiboonsri T, Yoiprommarat S, Suntivich R, Preedanon S, Komwijit S, Teerawatananond T, Sakayaroj J. A cyclic lipodepsipeptide, a spirolactone, and a chromanone from the marine fungus Verruculina enalia (Kohlm.) Kohlm. & Volkm.-Kohlm. BCC 22226. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131497] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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11
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Sadorn K, Saepua S, Punyain W, Saortep W, Choowong W, Rachtawee P, Pittayakhajonwut P. Chromanones and aryl glucoside analogs from the entomopathogenic fungus Aschersonia confluens BCC53152. Fitoterapia 2020; 144:104606. [DOI: 10.1016/j.fitote.2020.104606] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 05/01/2020] [Accepted: 05/01/2020] [Indexed: 12/23/2022]
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12
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Wang F, Jiang J, Hu S, Hao X, Cai YS, Ye Y, Ma H, Sun W, Cheng L, Huang C, Zhu H, Zhang H, Zhang G, Zhang Y. Nidulaxanthone A, a xanthone dimer with a heptacyclic 6/6/6/6/6/6/6 ring system from Aspergillus sp.-F029. Org Chem Front 2020. [DOI: 10.1039/d0qo00113a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Nidulaxanthone A (1), a xanthone dimer bearing an unprecedented heptacyclic 6/6/6/6/6/6/6 system, together with a new monomeric nidulalin D (2) and four known analogues (3, 4, 5 and 6), were isolated from Aspergillus sp. F029.
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13
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Tuong TL, Aree T, Do LT, Nguyen PK, Wonganan P, Chavasiri W. Dimeric tetrahydroxanthones from the lichen Usnea aciculifera. Fitoterapia 2019; 137:104194. [DOI: 10.1016/j.fitote.2019.104194] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 06/02/2019] [Accepted: 06/04/2019] [Indexed: 02/03/2023]
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14
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Yu G, Wu G, Sun Z, Zhang X, Che Q, Gu Q, Zhu T, Li D, Zhang G. Cytotoxic Tetrahydroxanthone Dimers from the Mangrove-Associated Fungus Aspergillus versicolor HDN1009. Mar Drugs 2018; 16:md16090335. [PMID: 30223483 PMCID: PMC6164687 DOI: 10.3390/md16090335] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 09/10/2018] [Accepted: 09/12/2018] [Indexed: 01/04/2023] Open
Abstract
Three new tetrahydroxanthone dimers, 5-epi-asperdichrome (1), versixanthones N (2), and O (3), were isolated from the mangrove-derived fungus Aspergillus versicolor HDN1009. Their structures, including the absolute configurations, were elucidated by NMR, HRMS, and circular dichroism (CD) experiments. Among them, compound 1 was the second example of tetrahydroxanthone dimers, which dimerized by a rare diaryl ether linkage and showed promising antibacterial activities against Vibrio parahemolyticus, Bacillus subtilis, Mycobacterium phlei, and Pseudomonas aeruginosa, with MIC values ranging from 100 μM to 200 μM; whilst compounds 2 and 3 exhibited extensive cytotoxicities against five cancer cell lines (HL-60, K562, H1975, MGC803, and HO-8910), with IC50 values ranging from 1.7 μM to 16.1 μM.
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Affiliation(s)
- Guihong Yu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China.
| | - Guangwei Wu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China.
| | - Zichao Sun
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China.
| | - Xiaomin Zhang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China.
| | - Qian Che
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China.
| | - Qianqun Gu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China.
| | - Tianjiao Zhu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China.
- Laboratory for Marine Drugs and Bioproducts of Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China.
| | - Dehai Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China.
- Laboratory for Marine Drugs and Bioproducts of Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China.
- Open Studio for Druggability Research of Marine Natural Products, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China.
| | - Guojian Zhang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China.
- Laboratory for Marine Drugs and Bioproducts of Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China.
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15
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Pyridone alkaloids from the scale-insect pathogenic fungus Hypocrella discoidea BCC 71382. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2017.12.084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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16
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Xiao Z, Li Y, Gao S. Total Synthesis and Structural Determination of the Dimeric Tetrahydroxanthone Ascherxanthone A. Org Lett 2017; 19:1834-1837. [DOI: 10.1021/acs.orglett.7b00592] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Zheming Xiao
- Shanghai Key Laboratory of
Green Chemistry and Chemical Processes, School of Chemistry and Molecular
Engineering, East China Normal University, 3663N Zhongshan Road, Shanghai 200062, China
| | - Yayue Li
- Shanghai Key Laboratory of
Green Chemistry and Chemical Processes, School of Chemistry and Molecular
Engineering, East China Normal University, 3663N Zhongshan Road, Shanghai 200062, China
| | - Shuanhu Gao
- Shanghai Key Laboratory of
Green Chemistry and Chemical Processes, School of Chemistry and Molecular
Engineering, East China Normal University, 3663N Zhongshan Road, Shanghai 200062, China
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17
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Li TX, Yang MH, Wang Y, Wang XB, Luo J, Luo JG, Kong LY. Unusual dimeric tetrahydroxanthone derivatives from Aspergillus lentulus and the determination of their axial chiralities. Sci Rep 2016; 6:38958. [PMID: 27941865 PMCID: PMC5150534 DOI: 10.1038/srep38958] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Accepted: 10/31/2016] [Indexed: 12/25/2022] Open
Abstract
The research on secondary metabolites of Aspergillus lentulus afforded eight unusual heterodimeric tetrahydroxanthone derivatives, lentulins A-H (2-9), along with the known compound neosartorin (1). Compounds 1-6 exhibited potent antimicrobial activities especially against methicillin-resistant Staphylococci. Their absolute configurations, particularly the axial chiralities, were unambiguously demonstrated by a combination of electronic circular dichroism (ECD), Rh2(OCOCF3)4-induced ECD experiments, modified Mosher methods, and chemical conversions. Interestingly, compounds 1-4 were the first samples of atropisomers within the dimeric tetrahydroxanthone class. Further investigation of the relationships between their axial chiralities and ECD Cotton effects led to the proposal of a specific CD Exciton Chirality rule to determine the axial chiralities in dimeric tetrahydroxanthones and their derivatives.
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Affiliation(s)
- Tian-Xiao Li
- State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People’s Republic of China
| | - Ming-Hua Yang
- State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People’s Republic of China
| | - Ying Wang
- State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People’s Republic of China
| | - Xiao-Bing Wang
- State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People’s Republic of China
| | - Jun Luo
- State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People’s Republic of China
| | - Jian-Guang Luo
- State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People’s Republic of China
| | - Ling-Yi Kong
- State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People’s Republic of China
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Guo Q, Dong L, Zang X, Gu Z, He X, Yao L, Cao L, Qiu J, Guan X. A new azaphilone from the entomopathogenic fungus Hypocrella sp. Nat Prod Res 2015; 29:2000-6. [DOI: 10.1080/14786419.2015.1023199] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Qingfeng Guo
- Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002 P.R. China
- National Engineering Research Center of Juncao Technology, Fuzhou, Fujian 350002 P.R. China
| | - Lili Dong
- Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002 P.R. China
- National Engineering Research Center of Juncao Technology, Fuzhou, Fujian 350002 P.R. China
| | - Xiangyun Zang
- Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002 P.R. China
- National Engineering Research Center of Juncao Technology, Fuzhou, Fujian 350002 P.R. China
| | - Zijian Gu
- Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002 P.R. China
- National Engineering Research Center of Juncao Technology, Fuzhou, Fujian 350002 P.R. China
| | - Xiaoyun He
- Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002 P.R. China
- National Engineering Research Center of Juncao Technology, Fuzhou, Fujian 350002 P.R. China
| | - Lindan Yao
- Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002 P.R. China
- National Engineering Research Center of Juncao Technology, Fuzhou, Fujian 350002 P.R. China
| | - Liping Cao
- Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002 P.R. China
- National Engineering Research Center of Juncao Technology, Fuzhou, Fujian 350002 P.R. China
| | - Junzhi Qiu
- Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002 P.R. China
- National Engineering Research Center of Juncao Technology, Fuzhou, Fujian 350002 P.R. China
| | - Xiong Guan
- Key Laboratory of Biopesticide and Chemical Biology, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002 P.R. China
- National Engineering Research Center of Juncao Technology, Fuzhou, Fujian 350002 P.R. China
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Wezeman T, Bräse S, Masters KS. Xanthone dimers: a compound family which is both common and privileged. Nat Prod Rep 2015; 32:6-28. [DOI: 10.1039/c4np00050a] [Citation(s) in RCA: 133] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
This Review seeks to systematically describe, for the first time, the widely-occurring and highly biologically-active family of dimeric xanthones from nature, encompassing several aspects of their biosynthesis, occurrence, contrasting structural features and wide variety of bioactivities.
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Affiliation(s)
- Tim Wezeman
- Institute of Organic Chemistry (IOC)
- Karlsruhe Institute of Technology (KIT)
- 76131 Karlsruhe
- Germany
| | - Stefan Bräse
- Institute of Organic Chemistry (IOC)
- Karlsruhe Institute of Technology (KIT)
- 76131 Karlsruhe
- Germany
- Institute of Toxicology and Genetics (ITG)
| | - Kye-Simeon Masters
- Discipline of Nanotechnology and Molecular Sciences
- School of Chemistry
- Physics and Mechanical Engineering
- Faculty of Science and Engineering
- Queensland University of Technology (QUT)
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Kuephadungphan W, Phongpaichit S, Luangsa-ard JJ, Rukachaisirikul V. Antimicrobial activity of invertebrate-pathogenic fungi in the genera Akanthomyces and Gibellula. MYCOSCIENCE 2014. [DOI: 10.1016/j.myc.2013.06.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Chutrakul C, Khaokhajorn P, Auncharoen P, Boonruengprapa T, Mongkolporn O. The potential of a fluorescent-based approach for bioassay of antifungal agents against chili anthracnose disease in Thailand. Biosci Biotechnol Biochem 2013; 77:259-65. [PMID: 23391904 DOI: 10.1271/bbb.120669] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Severe chili anthracnose disease in Thailand is caused by Colletotrichum gloeosporioides and C. capsici. To discover anti-anthracnose substances we developed an efficient dual-fluorescent labeling bioassay based on a microdilution approach. Indicator strains used in the assay were constructed by integrating synthetic green fluorescent protein (sGFP) and Discosoma sp. red fluorescent protein (DsRedExp) genes into the genomes of C. gloeosporioides or C. capsici respectively. Survival of co-spore cultures in the presence of inhibitors was determined by the expression levels of these fluorescent proteins. This developed assay has high potential for utilization in the investigation of selective inhibition activity to either one of the pathogens as well as the broad-range inhibitory effect against both pathogens. The value of using the dual-fluorescent assay is rapid, reliable, and consistent identification of anti-anthracnose agents. Most of all, the assay enables the identification of specific inhibitors under the co-cultivation condition.
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Affiliation(s)
- Chanikul Chutrakul
- National Center for Genetic Engineering and Biotechnology (BIOTEC), Thailand Science Park, Phahon Yothin Read, Klong Nueng, Klong Luang, Pathum Thani, Tahiland.
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Kornsakulkarn J, Saepua S, Srichomthong K, Supothina S, Thongpanchang C. New mycotoxins from the scale insect fungus Aschersonia coffeae Henn. BCC 28712. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.07.059] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Masters KS, Bräse S. Xanthones from fungi, lichens, and bacteria: the natural products and their synthesis. Chem Rev 2012; 112:3717-76. [PMID: 22617028 DOI: 10.1021/cr100446h] [Citation(s) in RCA: 291] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Kye-Simeon Masters
- Institute for Organic Chemistry, Karlsruhe Institute of Technology, Germany.
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Shim SH, Baltrusaitis J, Gloer JB, Wicklow DT. Phomalevones A-C: dimeric and pseudodimeric polyketides from a fungicolous Hawaiian isolate of Phoma sp. (Cucurbitariaceae). JOURNAL OF NATURAL PRODUCTS 2011; 74:395-401. [PMID: 21247198 DOI: 10.1021/np100791b] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Phomalevones A-C (1-3), three new com-pounds with bis-dihydroxanthone and bis-benzophenone systems, were isolated from cultures of a Hawaiian isolate of Phoma sp. (MYC-1734 = NRRL 39060; Cucurbitariaceae). The structures of 1-3 were determined by analysis of NMR and MS data. The absolute configurations of the sp(3) stereocenters in the monomeric unit of 1 were assigned by application of Mosher's method, and overall absolute configurations were proposed on the basis of ECD data using both computational methods and comparisons with literature data for model compounds. All three compounds showed antibacterial activity, and compounds 2 and 3 also exhibited antifungal effects.
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Affiliation(s)
- Sang Hee Shim
- Department of Chemistry, University of Iowa, Iowa City, Iowa 52242, United States
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Isaka M, Yangchum A, Rachtawee P, Komwijit S, Lutthisungneon A. Hopane-type triterpenes and binaphthopyrones from the scale insect pathogenic fungus Aschersonia paraphysata BCC 11964. JOURNAL OF NATURAL PRODUCTS 2010; 73:688-692. [PMID: 20364867 DOI: 10.1021/np1000363] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Two new triterpenes, 17(21)-hopene-6alpha,12beta-diol (1) and 17(21)-hopen-12beta-ol (2), the known 17(21)-hopen-6alpha-ol (zeorinin, 3), and two new biarylic dihydronaphthopyrones, aschernaphthopyrones A (4) and B (5), were isolated from the scale insect pathogenic fungus Aschersonia paraphysata BCC 11964. Hopene 1 and aschernaphthopyrone A (4) exhibited antimalarial activity with IC(50) values of 15 and 7.3 microM, respectively.
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Affiliation(s)
- Masahiko Isaka
- National Center for Genetic Engineering and Biotechnology (BIOTEC), 113 Thailand Science Park, Phaholyothin Road, Klong Luang, Pathumthani 12120, Thailand.
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