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Zhu L, Zhang SQ, Wang YN, Wang JX, Wang CY, Cai L, Wen ZF, Deng L, Cai L. Xylarkarynone A and B: Two Bioactive Eremophilane Sesquiterpenes from Xylaria sp. HHY-2. Chem Biodivers 2024; 21:e202400900. [PMID: 38713316 DOI: 10.1002/cbdv.202400900] [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: 04/09/2024] [Revised: 05/05/2024] [Accepted: 05/06/2024] [Indexed: 05/08/2024]
Abstract
A new compound xylarkarynone A (1), a first reported natural product compound xylarkarynone B (2) and eight known compounds (3-10) were isolated from Xylaria sp. HHY-2. Their structures were elucidated by spectroscopic methods, DP4+ probability analyses and electronic circular dichroism (ECD) calculations. The bioactivities of isolated compounds were assayed. Compound 1 exhibited obvious activity against A549 cells with an IC50 value of 6.12±0.28 μM. Additionally, compound 1 showed moderate antifungal activities against Plectosphaerella cucumerina and Aspergillus niger with minimum inhibitory concentrations (MICs) of both 16 μg/mL, which was at the same grade with positive control nystatin. Most compounds exhibited varying degrees of inhibitory activity against P. cucumerina, indicating that Xylaria sp. has potential as inhibitors against P. cucumerina.
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Affiliation(s)
- Li Zhu
- Key laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Characteristic Plant Extraction Laboratory, Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan, 650091, People's Republic of China
| | - Sheng-Qi Zhang
- Key laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Characteristic Plant Extraction Laboratory, Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan, 650091, People's Republic of China
| | - Yi-Nong Wang
- Key laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Characteristic Plant Extraction Laboratory, Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan, 650091, People's Republic of China
| | - Jia-Xin Wang
- Key laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Characteristic Plant Extraction Laboratory, Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan, 650091, People's Republic of China
| | - Cheng-Yao Wang
- Key laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Characteristic Plant Extraction Laboratory, Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan, 650091, People's Republic of China
| | - Lan Cai
- Key laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Characteristic Plant Extraction Laboratory, Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan, 650091, People's Republic of China
| | - Zhao-Fei Wen
- Key laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Characteristic Plant Extraction Laboratory, Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan, 650091, People's Republic of China
| | - Liang Deng
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, Yunnan, 650091, People's Republic of China
- Yunnan College of Modern Biomedical Industry, Kunming, 650500, People's Republic of China
| | - Le Cai
- Key laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Characteristic Plant Extraction Laboratory, Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan, 650091, People's Republic of China
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Koliye PR, Nouga Bissoue A, Ngoh Misse Mouelle E, Kwanga Nguikwie S, Zambo Owona CV, Simons VE, Akone SH, Mbaze Meva'a L, Kalscheuer R. Xylatolides A and B, new 10-membered macrolides from the endophytic fungus Xylaria sp. Z NATURFORSCH C 2024; 0:znc-2023-0091. [PMID: 38934215 DOI: 10.1515/znc-2023-0091] [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: 06/13/2023] [Accepted: 06/09/2024] [Indexed: 06/28/2024]
Abstract
Chemical investigation of the fungal endophyte Xylaria sp. isolated from leaves of Moringa oleifera, collected in Cameroon, resulted in the previously undescribed 10-membered macrolide, and two known natural products. The structures of the xylatolides A and B were unambiguously identified by their mass spectra and by extensive 1D and 2D NMR spectroscopic analysis, featuring a 10-membered lactone core structure with oxygenated substituents and an unsubstituted 10-alkyl chain presenting seven carbon atoms. Compounds were screened for their cytotoxic potential against the human HepG2 hepatocellular carcinoma cells and HCT-116 cells (human colon carcinoma cell line). Moreover, the isolated compounds were also assayed against a small panel of sensitive strains including the bacterial species Escherichia coli, Staphylococcus aureus, and Mycobacterium tuberculosis as well as against the fungal species Candida albicans. However, no significant activities were found.
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Affiliation(s)
- Pierre Roger Koliye
- Department of Chemistry, Faculty of Sciences, 231173 University of Douala , P.O. Box 24157 Douala, Cameroon
| | - Achille Nouga Bissoue
- Department of Chemistry, Faculty of Sciences, 231173 University of Douala , P.O. Box 24157 Douala, Cameroon
| | - Eitel Ngoh Misse Mouelle
- Department of Chemistry, Faculty of Sciences, 231173 University of Douala , P.O. Box 24157 Douala, Cameroon
| | - Sylvie Kwanga Nguikwie
- Department of Biochemistry, Faculty of Sciences, 231173 University of Douala , P.O. Box 24157 Douala, Cameroon
| | - Claudine Victoire Zambo Owona
- Process Engineering Laboratory, Advanced Teachers' Training College for Technical Education, 231173 University of Douala , P.O. Box 1872 Douala, Cameroon
| | - Viktor Emanuel Simons
- Institute of Pharmaceutical Biology and Biotechnology, Heinrich Heine University, Düsseldorf, Germany
| | - Sergi Herve Akone
- Department of Chemistry, Faculty of Sciences, 231173 University of Douala , P.O. Box 24157 Douala, Cameroon
- Department of Microbial Natural Products (MINS), Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), University of Saarland, D-66123 Saarbrücken, Germany
| | - Luc Mbaze Meva'a
- Department of Chemistry, Faculty of Sciences, 231173 University of Douala , P.O. Box 24157 Douala, Cameroon
| | - Rainer Kalscheuer
- Institute of Pharmaceutical Biology and Biotechnology, Heinrich Heine University, Düsseldorf, Germany
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Liu TH, Xu X, Li LQ, Tan YF, Zhou SQ, Liu S, Long HP, Wang WX, Li J, Liu JK. Two new quinoline alkaloid with neuroprotective activities from Xylaria longipes. Fitoterapia 2024; 175:105930. [PMID: 38554885 DOI: 10.1016/j.fitote.2024.105930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 03/22/2024] [Accepted: 03/25/2024] [Indexed: 04/02/2024]
Abstract
Two new quinoline alkaloids with an α, β-unsaturated amide side chain, xylarinines A and B (1 and 2), were isolated from the ethyl acetate extracts of Xylaria longipes solid fermentation. The structures of these were primarily determined though NMR and HRESIMS data analysis. The absolute configuration of compound 1 was assigned using experimental and calculated ECD data. The neuroprotective effects of compounds 1 and 2 against glutamate-induced damage in PC12 cells were evaluated in vitro bioassay. The results demonstrated that both compounds significantly improved cell viability, inhibited apoptosis, decreased malondialdehyde (MDA) levels, increased superoxide dismutase (SOD) and glutathione (GSH) levels, and reduced intracellular reactive oxygen species (ROS) accumulation. These findings suggested that these mechanisms contribute to the neuroprotective effects of the compounds.
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Affiliation(s)
- Tao-Hai Liu
- Department of Pharmacy, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China
| | - Xia Xu
- Department of General Practice, Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China
| | - Lan-Qing Li
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, PR China
| | - Yu-Fen Tan
- Department of Pharmacy, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China
| | - Si-Qian Zhou
- The First Hospital of Hunan University of Chinese Medicine, Changsha, Hunan 410007, PR China
| | - Shao Liu
- Department of Pharmacy, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China
| | - Hong-Ping Long
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, PR China
| | - Wen-Xuan Wang
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410013, PR China
| | - Jing Li
- Department of Pharmacy, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China.
| | - Ji-Kai Liu
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, PR China.
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Wei SS, Lai JY, Chen C, Zhang YJ, Nong XM, Qiu KD, Duan FF, Zou ZX, Tan HB. Sesquiterpenes and α-pyrones from an endophytic fungus Xylaria curta YSJ-5. PHYTOCHEMISTRY 2024; 220:114011. [PMID: 38367793 DOI: 10.1016/j.phytochem.2024.114011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 01/31/2024] [Accepted: 02/01/2024] [Indexed: 02/19/2024]
Abstract
Chemical investigation of the culture extract of an endophyte Xylaria curta YSJ-5 from Alpinia zerumbet (Pers.) Burtt. et Smith resulted in the isolation of eight previously undescribed compounds including five eremophilane sesquiterpenes xylarcurenes A-E, one norsesquiterpene xylarcurene F, and two α-pyrone derivatives xylarpyrones A-B together with eight known related derivatives. Their chemical structures were extensively established based on the 1D- and 2D-NMR spectroscopic analysis, modified Mosher's method, electronic circular dichroism calculations, single-crystal X-ray diffraction experiments, and the comparison with previous literature data. All these compounds were tested for in vitro cytotoxic, anti-inflammatory, α-glucosidase inhibitory, and antibacterial activities. As a result, 6-pentyl-4-methoxy-pyran-2-one was disclosed to display significant antibacterial activity against Staphylococcus aureus and methicillin-resistant S. aureus with minimal inhibitory concentration value of 6.3 μg/mL.
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Affiliation(s)
- Shan-Shan Wei
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jia-Ying Lai
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chen Chen
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; Xiangya School of Pharmaceutical Sciences, Central South University, Changsha Hunan 410013, China
| | - Yan-Jiang Zhang
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xin-Miao Nong
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
| | - Kai-Di Qiu
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Fang-Fang Duan
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
| | - Zhen-Xing Zou
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha Hunan 410013, China.
| | - Hai-Bo Tan
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; National Engineering Research Center of Navel Orange, Gannan Normal University, Ganzhou 341000, China; Xiangya School of Pharmaceutical Sciences, Central South University, Changsha Hunan 410013, China.
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Angelova G, Stefanova P, Brazkova M, Krastanov A. Molecular and morphological characterization of Xylaria karsticola (Ascomycota) isolated from the fruiting body of Macrolepiota procera (Basidiomycota) from Bulgaria. PLoS One 2023; 18:e0287679. [PMID: 37384635 PMCID: PMC10309620 DOI: 10.1371/journal.pone.0287679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 06/07/2023] [Indexed: 07/01/2023] Open
Abstract
The present study is the first to report Xylaria karsticola isolated from the basidiocarp of Macrolepiota procera (Basidiomycota), from Stara Planina Mountain, Bulgaria and second report for such species found in Europe. The fungal isolate was in vitro cultivated and the morphology was observed. It was primarily determined as a xylariaceous morphotype at the intragenus level, based on the evaluation of colony growth rate, color, and stromatic structure formation and was confirmed by unique conidiophores and conidia. The molecular identification of the isolate was performed by amplification of ITS1-5.8S-ITS2 region and the strain was identified as Xylaria karsticola with 97.57% of confidence. The obtained sequence was deposited in the GenBank database under the accession number MW996752 and in the National Bank of Industrial Microorganisms and Cell Cultures of Bulgaria under accession number NBIMCC 9097. The phylogenetic analysis of the isolate was also conducted by including 26 sequences obtained from different Xylaria isolates. Considering the phylogenetic data, X. karsticola NBIMCC 9097 was grouped along with other X. karsticola isolates, although the DNA sequence of the novel X. karsticola was rather distantly related to the other X. karsticola sequence data. The results were supported by the bootstrap analysis (100%) and indicated the different origin of the examined X. karsticola NBIMCC 9097.
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Affiliation(s)
- Galena Angelova
- Department of Biotechnology, University of Food Technology, Plovdiv, Bulgaria
| | - Petya Stefanova
- Department of Biotechnology, University of Food Technology, Plovdiv, Bulgaria
| | - Mariya Brazkova
- Department of Biotechnology, University of Food Technology, Plovdiv, Bulgaria
| | - Albert Krastanov
- Department of Biotechnology, University of Food Technology, Plovdiv, Bulgaria
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Li J, Tan YF, Zhou SQ, Liu S, Wang WX, Jiang YP, Long HP, Liu JK. Neuroprotective methylsuccinic acid and enoic acid derivatives from the fungus Xylaria longipes. PHYTOCHEMISTRY 2023; 210:113652. [PMID: 36967032 DOI: 10.1016/j.phytochem.2023.113652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 03/19/2023] [Accepted: 03/22/2023] [Indexed: 06/18/2023]
Abstract
Three undescribed methylsuccinic acid derivatives, xylaril acids A-C, and two undescribed enoic acid derivatives, xylaril acids D-E, were isolated from the fungus Xylaria longipes. The structures of the undescribed compounds were deduced by spectroscopic means, including HRESIMS and 1D/2D NMR spectroscopy, as well as ECD calculations. The absolute configuration of xylaril acids A was further determined by single-crystal X-ray diffraction experiments. All the isolated compounds displayed neuroprotective activities against oxygen-glucose deprivation/reperfusion injury in PC12 cells by enhancing cell viability and inhibiting cell apoptosis.
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Affiliation(s)
- Jing Li
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, PR China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, PR China
| | - Yu-Fen Tan
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, PR China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, PR China
| | - Si-Qian Zhou
- The First Hospital of Hunan University of Chinese Medicine, Changsha, Hunan, 410007, PR China
| | - Shao Liu
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, PR China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, PR China
| | - Wen-Xuan Wang
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013, PR China
| | - Yue-Ping Jiang
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, PR China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, PR China.
| | - Hong-Ping Long
- The First Hospital of Hunan University of Chinese Medicine, Changsha, Hunan, 410007, PR China.
| | - Ji-Kai Liu
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan, 430074, PR China.
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Zhang X, Fan Y, Ye K, Pan X, Ma X, Ai H, Shi B, Liu J. Six Unprecedented Cytochalasin Derivatives from the Potato Endophytic Fungus Xylaria curta E10 and Their Cytotoxicity. Pharmaceuticals (Basel) 2023; 16:193. [PMID: 37259342 PMCID: PMC9964435 DOI: 10.3390/ph16020193] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/13/2023] [Accepted: 01/24/2023] [Indexed: 09/22/2023] Open
Abstract
Six previously undescribed cytochalasins, Curtachalasins X1-X6 (1-6), together with six known compounds (7-12) were isolated from the endophytic fungus Xylaria curta E10 harbored in the plant Solanum tuberosum. The structures were elucidated by the interpretation of HRESIMS, UV, and NMR data. The absolute configurations of Curtachalasins X1-X6 were determined by comparison of their experimental and calculated electronic circular dichroism (ECD) spectra. In bioassays, Curtachalasin X1 (1) and X5 (5) showed cytotoxic activity against the MCF-7 cell line with IC50 values of 2.03 μM and 0.85 μM, respectively.
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Affiliation(s)
- Xian Zhang
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, China
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Yinzhong Fan
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, China
| | - Ke Ye
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, China
| | - Xiaoyan Pan
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, China
| | - Xujun Ma
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, China
| | - Honglian Ai
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, China
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Baobao Shi
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, China
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Jikai Liu
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, China
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
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Anti-Methicillin-Resistant S. aureus Activity of Fruiting Body and Mycelial Culture Extracts of Xylaria longipes Nitschke (Ascomycota). Pharm Chem J 2022. [DOI: 10.1007/s11094-022-02733-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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9
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Wang JF, Huang R, Song ZQ, Yang QR, Li XP, Liu SS, Wu SH. Polyhydroxylated sesquiterpenes and ergostane glycosides produced by the endophytic fungus Xylaria sp. from Azadirachta indica. PHYTOCHEMISTRY 2022; 199:113188. [PMID: 35421432 DOI: 10.1016/j.phytochem.2022.113188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 04/02/2022] [Accepted: 04/03/2022] [Indexed: 06/14/2023]
Abstract
The investigation of the metabolites from the endophytic fungus Xylaria sp. YM 311647 in solid fermentation resulted in the isolation of six undescribed compounds, namely xylarioxides A-F, respectively. These included one eremophilane sesquiterpene, three guaiane sesquiterpene glycosides, and two ergostane glycosides. The structures of the compounds were determined by extensive analyses of spectroscopic data, including 1D and 2D NMR, as well as HRESIMS data. The stereochemistry of xylarioxide A was confirmed by X-ray crystallographic analysis. All of the isolated compounds were assayed for their antifungal activities against seven phytopathogenic fungi and two human pathogenic fungi. Among them, xylarioxides A, E and F showed potent activities against the tested phytopathogens. Particularly, xylarioxide E exhibited the highest activity against Gibberella saubinetii, Curvularia lunata, and Colletotrichum gloeosporioides with MIC values of 4, 4, and 8 μg/mL, respectively, which were comparable to the positive control of nystatin. Interestingly, guaiane sesquiterpene glycosides have been rarely reported from fungal sources. Additionally, xylarioxide E represented an unusual naturally occurring 3,4-seco-steroidal glycoside with a seven-membered lactone in ring A.
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Affiliation(s)
- Jun-Fei Wang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan Institute of Microbiology, School of Life Sciences, Yunnan University, Kunming, 650091, China
| | - Rong Huang
- School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China
| | - Zhi-Qiang Song
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan Institute of Microbiology, School of Life Sciences, Yunnan University, Kunming, 650091, China
| | - Qing-Rong Yang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan Institute of Microbiology, School of Life Sciences, Yunnan University, Kunming, 650091, China
| | - Xin-Peng Li
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan Institute of Microbiology, School of Life Sciences, Yunnan University, Kunming, 650091, China
| | - Si-Si Liu
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan Institute of Microbiology, School of Life Sciences, Yunnan University, Kunming, 650091, China
| | - Shao-Hua Wu
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan Institute of Microbiology, School of Life Sciences, Yunnan University, Kunming, 650091, China.
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Song J, Xu K, Liu C, Wang T, Luan X, Zhu L, Chu Z, Fu X, Chang W, Wang X, Lou H. Bioactive specialised metabolites from the endophytic fungus Xylaria sp. of Cudrania tricuspidata. PHYTOCHEMISTRY 2022; 196:113079. [PMID: 34995881 DOI: 10.1016/j.phytochem.2021.113079] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 12/28/2021] [Accepted: 12/29/2021] [Indexed: 06/14/2023]
Abstract
Fourteen undescribed compounds, including five 2,5-diarylcyclopentenones xylariaones A1-B2, seven α-pyrone derivatives xylaripyones A-G, one γ-pyrone derivative xylaripyone H, one diketopiperazine cyclo-(L-Leu-N-ethyl-L-Glu), and two known diketopiperazines, were isolated from cultures of the endophytic fungus Xylaria sp., which was separated from Cudrania tricuspidata Bureau ex Lavallée. Their structures were determined by analysing extensive spectroscopic data (HRESIMS and NMR) and electronic circular dichroism (ECD) calculations. Furthermore, these compounds were evaluated for potential antiproliferative activity against the human tumour cell lines PC3 and A549, and the results showed that xylaripyone D exhibited moderate inhibitory activity against the proliferation of PC3 cell lines with an IC50 value of 14.75 μM. Meanwhile, xylariaone A3 and xylaripyone F displayed weak inhibitory effects on NO production in RAW 264.7 murine macrophages with IC50 values of 49.76 and 69.68 μM, respectively.
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Affiliation(s)
- Jintong Song
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan, 250012, PR China
| | - Ke Xu
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan, 250012, PR China; The Second Hospital of Shandong University, No. 247 Bei-Yuan Street, Jinan, 250033, PR China
| | - Chunyu Liu
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan, 250012, PR China
| | - Tian Wang
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan, 250012, PR China
| | - Xiaoyi Luan
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan, 250012, PR China
| | - Lihua Zhu
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan, 250012, PR China
| | - Zhaojun Chu
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan, 250012, PR China
| | - Xiaojie Fu
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan, 250012, PR China
| | - Wenqiang Chang
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan, 250012, PR China
| | - Xiaoning Wang
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan, 250012, PR China
| | - Hongxiang Lou
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan, 250012, PR China.
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11
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Bioactive PKS-NRPS Alkaloids from the Plant-Derived Endophytic Fungus Xylaria arbuscula. Molecules 2021; 27:molecules27010136. [PMID: 35011368 PMCID: PMC8746755 DOI: 10.3390/molecules27010136] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 12/15/2021] [Accepted: 12/15/2021] [Indexed: 11/25/2022] Open
Abstract
A novel hybrid PKS–NRPS alkaloid, xylarialoid A (1), containing a 13-membered macrocyclic moiety and [5,5,6] fused tricarbocyclic rings, together with ten known cytochalasins (2–11), was isolated from a plant-derived endophytic fungus, Xylaria arbuscula. The chemical structures of all compounds were elucidated using 1D and 2D NMR, HR ESIMS spectroscopic analyses, and electronic circular dichroism (ECD) calculation. Compounds 1–3 and 10 exhibited significant antitumor activities against A549 and Hep G2 cell lines, with IC50 values of 3.6–19.6 μM. In addition, compound 1 showed potent anti-inflammatory activity against LPS-induced nitric oxide (NO) production in macrophage RAW 264.7 cells (IC50, 6.6 μM).
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12
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Charria-Girón E, Espinosa MC, Zapata-Montoya A, Méndez MJ, Caicedo JP, Dávalos AF, Ferro BE, Vasco-Palacios AM, Caicedo NH. Evaluation of the Antibacterial Activity of Crude Extracts Obtained From Cultivation of Native Endophytic Fungi Belonging to a Tropical Montane Rainforest in Colombia. Front Microbiol 2021; 12:716523. [PMID: 34603244 PMCID: PMC8485978 DOI: 10.3389/fmicb.2021.716523] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 08/09/2021] [Indexed: 01/08/2023] Open
Abstract
Bioactive secondary metabolite production from endophytic fungi has gained a recurring research focus in recent decades as these microorganisms represent an unexplored biological niche for their diverse biotechnological potential. Despite this focus, studies involving tropical endophytes remain scarce, particularly those isolated from medicinal plants of these ecosystems. In addition, the state of the art of the pharmaceutical industry has experienced stagnation in the past 30years, which has pushed pathogenic infections to get one step ahead, resulting in the development of resistance to existing treatments. Here, five fungal endophytes were isolated from the medicinal plant Otoba gracilipes (Myristicaceae), which corresponded to the genera Xylaria and Diaporthe, and screened to demonstrate the promissory potential of these microorganisms for producing bioactive secondary metabolites with broad-spectrum antibacterial activities. Thus, the evaluation of crude organic extracts obtained from the mycelia and exhaust medium allowed the elucidation of Xylaria sp. and Diaporthe endophytica potential toward providing crude extracellular extracts with promising bioactivities against reference strains of Escherichia coli (ATCC 25922) and Staphylococcus aureus (ATCC 25923), according to the determined half-maximum inhibitory concentration (IC50) with values down to 3.91 and 10.50mg/ml against each pathogen, respectively. Follow-up studies provided insights into the polarity nature of bioactive compounds in the crude extracts through bioactivity guided fractionation using a polymeric resin absorbent alternative extraction procedure. In addition, evaluation of the co-culturing methods demonstrated how this strategy can enhance endophytes biosynthetic capacity and improve their antibacterial potential with a 10-fold decrease in the IC50 values against both pathogens compared to the obtained values in the preliminary evaluations of Xylaria sp. and D. endophytica crude extracts. These results support the potential of Colombian native biodiversity to provide new approaches concerning the global emergence of antibiotics resistance and future production of undiscovered compounds different from the currently used antibiotics classes and simultaneously call for the value of preserving native habitats due to their promising ecosystemic applications in the biotechnological and pharmaceutical industries.
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Affiliation(s)
- Esteban Charria-Girón
- Departamento de Ingeniería Bioquímica, Facultad de Ingeniería, Universidad Icesi, Cali, Colombia
| | - María C Espinosa
- Departamento de Ingeniería Bioquímica, Facultad de Ingeniería, Universidad Icesi, Cali, Colombia
| | - Andrea Zapata-Montoya
- Departamento de Ingeniería Bioquímica, Facultad de Ingeniería, Universidad Icesi, Cali, Colombia
| | - María J Méndez
- Departamento de Ingeniería Bioquímica, Facultad de Ingeniería, Universidad Icesi, Cali, Colombia
| | - Juan P Caicedo
- Departamento de Ingeniería Bioquímica, Facultad de Ingeniería, Universidad Icesi, Cali, Colombia
| | - Andrés F Dávalos
- Departamento de Ciencias Biológicas, Facultad de Ciencias Naturales, Universidad Icesi, Cali, Colombia
| | - Beatriz E Ferro
- Departamento de Salud Pública y Medicina Comunitaria, Facultad de Ciencias de la Salud, Universidad Icesi, Cali, Colombia
| | - Aida M Vasco-Palacios
- Grupo de Microbiología Ambiental - BioMicro, Escuela de Microbiología, Universidad de Antioquia (UdeA), Medellín, Colombia.,Asociación Colombiana de Micología (ASCOLMIC), Medellin, Colombia
| | - Nelson H Caicedo
- Departamento de Ingeniería Bioquímica, Facultad de Ingeniería, Universidad Icesi, Cali, Colombia.,Centro BioInc, Universidad Icesi, Cali, Colombia
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13
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Antioxidant Activity and Cytotoxicity against Cancer Cell Lines of the Extracts from Novel Xylaria Species Associated with Termite Nests and LC-MS Analysis. Antioxidants (Basel) 2021; 10:antiox10101557. [PMID: 34679692 PMCID: PMC8533195 DOI: 10.3390/antiox10101557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 09/20/2021] [Accepted: 09/28/2021] [Indexed: 11/17/2022] Open
Abstract
Xylaria species associated with termite nests or soil have been considered rare species in nature and the few which have been reported upon have been found to act as a rich source of bioactive metabolites. This study evaluated 10 ethyl acetate extracts of five new Xylaria species associated with termite nests or soil for their antioxidant activity, and cytotoxicity against different cancer and normal cell lines. DPPH and ABTS radical scavenging activities of the extracts demonstrated strong capacity with low IC50 values. The highest observed activities belonged to X. vinacea SWUF18-2.3 having IC50 values of 0.194 ± 0.031 mg/mL for DPPH assay and 0.020 ± 0.004 mg/mL for ABTS assay. Total phenolic content ranged from 0.826 ± 0.123 to 3.629 ± 0.381 g GAE/g crude extract which correlated with antioxidant activities. The high total phenolic content could contribute to the high antioxidant activities. Cytotoxicity was recorded against A549, HepG2, HeLa and PNT2 and resulted in broad spectrum to specific activity depending on the cell lines. The highest activities were observed with X. subintraflava SWUF16-11.1 which resulted in 11.15 ± 0.32 to 13.17 ± 2.37% cell viability at a concentration of 100 µg/mL. Moreover, LC-MS fingerprints indicated over 61 peaks from all isolates. There were 18 identified and 43 unidentified compounds compared to mass databases. The identified compounds were from various groups of diterpenoids, diterpenes, cytochalasin, flavones, flavonoids, polyphenols, steroids and derivatives, triterpenoids and tropones. These results indicate that Xylaria spp. has abundant secondary metabolites that could be further explored for their therapeutic properties.
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14
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Jeong MH, Kim JA, Kang S, Choi ED, Kim Y, Lee Y, Jeon MJ, Yu NH, Park AR, Kim JC, Kim S, Park SY. Optimization of Agrobacterium tumefaciens-Mediated Transformation of Xylaria grammica EL000614, an Endolichenic Fungus Producing Grammicin. MYCOBIOLOGY 2021; 49:491-497. [PMID: 34803437 PMCID: PMC8583754 DOI: 10.1080/12298093.2021.1961431] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 07/06/2021] [Accepted: 07/21/2021] [Indexed: 06/13/2023]
Abstract
An endolichenic fungus Xylaria grammica EL000614 produces grammicin, a potent nematicidal pyrone derivative that can serve as a new control option for root-knot nematodes. We optimized an Agrobacterium tumefaciens-mediated transformation (ATMT) protocol for X. grammica to support genetic studies. Transformants were successfully generated after co-cultivation of homogenized young mycelia of X. grammica with A. tumefaciens strain AGL-1 carrying a binary vector that contains the bacterial hygromycin B phosphotransferase (hph) gene and the eGFP gene in T-DNA. The resulting transformants were mitotically stable, and PCR analysis showed the integratin of both genes in the genome of transformants. Expression of eGFP was confirmed via fluorescence microscopy. Southern analysis showed that 131 (78.9%) out of 166 transformants contained a single T-DNA insertion. Crucial factors for producing predominantly single T-DNA transformants include 48 h of co-cultivation, pre-treatment of A. tumefaciens cells with acetosyringone before co-cultivation, and using freshly prepared mycelia. The established ATMT protocol offers an efficient tool for random insertional mutagenesis and gene transfer in studying the biology and ecology of X. grammica.
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Affiliation(s)
- Min-Hye Jeong
- Department of Plant Medicine, Sunchon National University, Suncheon, Korea
| | - Jung A. Kim
- Microorganism Resources Division, National Institute of Biological Resources, Incheon, Korea
| | - Seogchan Kang
- Department of Plant Pathology & Environmental Microbiology, The Pennsylvania State University, University Park, PA, USA
| | - Eu Ddeum Choi
- Department of Plant Medicine, Sunchon National University, Suncheon, Korea
| | - Youngmin Kim
- Department of Plant Medicine, Sunchon National University, Suncheon, Korea
| | - Yerim Lee
- Department of Plant Medicine, Sunchon National University, Suncheon, Korea
| | - Mi Jin Jeon
- Microorganism Resources Division, National Institute of Biological Resources, Incheon, Korea
| | - Nan Hee Yu
- Department of Agricultural Chemistry, Institute of Environmentally Friendly Agriculture, Chonnam National University, Gwangju, Korea
| | - Ae Ran Park
- Department of Agricultural Chemistry, Institute of Environmentally Friendly Agriculture, Chonnam National University, Gwangju, Korea
| | - Jin-Cheol Kim
- Department of Agricultural Chemistry, Institute of Environmentally Friendly Agriculture, Chonnam National University, Gwangju, Korea
| | - Soonok Kim
- Microorganism Resources Division, National Institute of Biological Resources, Incheon, Korea
| | - Sook-Young Park
- Department of Plant Medicine, Sunchon National University, Suncheon, Korea
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15
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Kuhnert E, Navarro-Muñoz J, Becker K, Stadler M, Collemare J, Cox R. Secondary metabolite biosynthetic diversity in the fungal family Hypoxylaceae and Xylaria hypoxylon. Stud Mycol 2021; 99:100118. [PMID: 34527085 PMCID: PMC8403587 DOI: 10.1016/j.simyco.2021.100118] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
To date little is known about the genetic background that drives the production and diversification of secondary metabolites in the Hypoxylaceae. With the recent availability of high-quality genome sequences for 13 representative species and one relative (Xylaria hypoxylon) we attempted to survey the diversity of biosynthetic pathways in these organisms to investigate their true potential as secondary metabolite producers. Manual search strategies based on the accumulated knowledge on biosynthesis in fungi enabled us to identify 783 biosynthetic pathways across 14 studied species, the majority of which were arranged in biosynthetic gene clusters (BGC). The similarity of BGCs was analysed with the BiG-SCAPE engine which organised the BGCs into 375 gene cluster families (GCF). Only ten GCFs were conserved across all of these fungi indicating that speciation is accompanied by changes in secondary metabolism. From the known compounds produced by the family members some can be directly correlated with identified BGCs which is highlighted herein by the azaphilone, dihydroxynaphthalene, tropolone, cytochalasan, terrequinone, terphenyl and brasilane pathways giving insights into the evolution and diversification of those compound classes. Vice versa, products of various BGCs can be predicted through homology analysis with known pathways from other fungi as shown for the identified ergot alkaloid, trigazaphilone, curvupallide, viridicatumtoxin and swainsonine BGCs. However, the majority of BGCs had no obvious links to known products from the Hypoxylaceae or other well-studied biosynthetic pathways from fungi. These findings highlight that the number of known compounds strongly underrepresents the biosynthetic potential in these fungi and that a tremendous number of unidentified secondary metabolites is still hidden. Moreover, with increasing numbers of genomes for further Hypoxylaceae species becoming available, the likelihood of revealing new biosynthetic pathways that encode new, potentially useful compounds will significantly improve. Reaching a better understanding of the biology of these producers, and further development of genetic methods for their manipulation, will be crucial to access their treasures.
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Affiliation(s)
- E. Kuhnert
- Centre of Biomolecular Drug Research (BMWZ), Institute for Organic Chemistry, Leibniz University Hannover, Schneiderberg 38, 30167, Hannover, Germany
| | - J.C. Navarro-Muñoz
- Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, 3584 CT, Utrecht, The Netherlands
| | - K. Becker
- Centre of Biomolecular Drug Research (BMWZ), Institute for Organic Chemistry, Leibniz University Hannover, Schneiderberg 38, 30167, Hannover, Germany
- Department Microbial Drugs, Helmholtz Centre for Infection Research (HZI), German Centre for Infection Research (DZIF), partner site Hannover-Braunschweig, Inhoffenstrasse 7, 38124, Braunschweig, Germany
| | - M. Stadler
- Department Microbial Drugs, Helmholtz Centre for Infection Research (HZI), German Centre for Infection Research (DZIF), partner site Hannover-Braunschweig, Inhoffenstrasse 7, 38124, Braunschweig, Germany
| | - J. Collemare
- Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, 3584 CT, Utrecht, The Netherlands
| | - R.J. Cox
- Centre of Biomolecular Drug Research (BMWZ), Institute for Organic Chemistry, Leibniz University Hannover, Schneiderberg 38, 30167, Hannover, Germany
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16
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Li J, Li LQ, Tan GS, Liu S, Wang WX, Liu JK. Longipone A, a unique tricyclic polyketide from the fungus Xylaria longipes. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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17
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Schalk F, Fricke J, Um S, Conlon BH, Maus H, Jäger N, Heinzel T, Schirmeister T, Poulsen M, Beemelmanns C. GNPS-guided discovery of xylacremolide C and D, evaluation of their putative biosynthetic origin and bioactivity studies of xylacremolide A and B. RSC Adv 2021; 11:18748-18756. [PMID: 34046176 PMCID: PMC8142242 DOI: 10.1039/d1ra00997d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 05/10/2021] [Indexed: 01/26/2023] Open
Abstract
Targeted HRMS2-GNPS-based metabolomic analysis of Pseudoxylaria sp. X187, a fungal antagonist of the fungus-growing termite symbiosis, resulted in the identification of two lipopeptidic congeners of xylacremolides, named xylacremolide C and D, which are built from d-phenylalanine, l-proline and an acetyl-CoA starter unit elongated by four malonyl-CoA derived ketide units. The putative xya gene cluster was identified from a draft genome generated by Illumina and PacBio sequencing and RNAseq studies. Biological activities of xylacremolide A and B were evaluated and revealed weak histone deacetylase inhibitory (HDACi) and antifungal activities, as well as moderate protease inhibition activity across a panel of nine human, viral and bacterial proteases.
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Affiliation(s)
- Felix Schalk
- Chemical Biology of Microbe-Host Interactions, Leibniz Institute for Natural Product Research and Infection Biology, Hans Knöll Institute (HKI) Beutenbergstraße 11a 07745 Jena Germany
| | - Janis Fricke
- Chemical Biology of Microbe-Host Interactions, Leibniz Institute for Natural Product Research and Infection Biology, Hans Knöll Institute (HKI) Beutenbergstraße 11a 07745 Jena Germany
| | - Soohyun Um
- Chemical Biology of Microbe-Host Interactions, Leibniz Institute for Natural Product Research and Infection Biology, Hans Knöll Institute (HKI) Beutenbergstraße 11a 07745 Jena Germany
| | - Benjamin H Conlon
- Section for Ecology and Evolution, Department of Biology, University of Copenhagen Universitetsparken 15 2100 Copenhagen East Denmark
| | - Hannah Maus
- Institute of Pharmaceutical and Biomedical Sciences, Johannes Gutenberg University Mainz Staudingerweg 5 55128 Mainz Germany
| | - Nils Jäger
- Institute of Biochemistry and Biophysics at Center for Molecular Biomedicine (CMB), Department of Biochemistry, Friedrich Schiller University Jena Hans-Knöll-Straße 2 07745 Jena Germany
| | - Thorsten Heinzel
- Institute of Biochemistry and Biophysics at Center for Molecular Biomedicine (CMB), Department of Biochemistry, Friedrich Schiller University Jena Hans-Knöll-Straße 2 07745 Jena Germany
| | - Tanja Schirmeister
- Institute of Pharmaceutical and Biomedical Sciences, Johannes Gutenberg University Mainz Staudingerweg 5 55128 Mainz Germany
| | - Michael Poulsen
- Section for Ecology and Evolution, Department of Biology, University of Copenhagen Universitetsparken 15 2100 Copenhagen East Denmark
| | - Christine Beemelmanns
- Chemical Biology of Microbe-Host Interactions, Leibniz Institute for Natural Product Research and Infection Biology, Hans Knöll Institute (HKI) Beutenbergstraße 11a 07745 Jena Germany
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18
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Zhou P, Zheng M, Li XN, Wei M, Zhang M, Li Q, Zang Y, Sun W, Wang J, Zhu H, Chen C, Zhang Y. Hypoxylonoids A-G: Isopimarane diterpene glycosides from Xylaria hypoxylon. PHYTOCHEMISTRY 2021; 182:112613. [PMID: 33316595 DOI: 10.1016/j.phytochem.2020.112613] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 11/30/2020] [Accepted: 12/02/2020] [Indexed: 06/12/2023]
Abstract
Seven undescribed isopimarane diterpene glycosides hypoxylonoids A-G, along with five known analogues were obtained from the fungus Xylaria hypoxylon. The structures and absolute configurations of hypoxylonoids A-G were confirmed by extensive spectroscopic and single-crystal X-ray diffraction analyses. Among these compounds, the γ-lactone moiety formed between C-19 and C-6 of hypoxylonoid A; the 1,2-methyl shift of Me-18 of hypoxylonoids B and E; and the decarboxylation of C-19 of hypoxylonoid E, make them outstanding from the isopimarane family. Single crystal X-ray diffraction analyses of hypoxylonoids A, C, F, and 15-hydroxy-16-α-D-mannopyranosyloxyisopimar-7-en-19-oic acid was performed to determine their absolute structural configuration.
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Affiliation(s)
- Peng Zhou
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei Province, China
| | - Meijia Zheng
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei Province, China
| | - Xiao-Nian Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650204, Yunnan Province, China
| | - Mengsha Wei
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei Province, China
| | - Mi Zhang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei Province, China
| | - Qin Li
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei Province, China
| | - Yi Zang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei Province, China
| | - Weiguang Sun
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei Province, China
| | - Jianping Wang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei Province, China
| | - Hucheng Zhu
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei Province, China
| | - Chunmei Chen
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei Province, China.
| | - Yonghui Zhang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei Province, China.
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Ma KL, Dong SH, Li HY, Wei WJ, Tu YQ, Gao K. Cytochalasins from Xylaria sp. CFL5, an Endophytic Fungus of Cephalotaxus fortunei. NATURAL PRODUCTS AND BIOPROSPECTING 2021; 11:87-98. [PMID: 33146865 PMCID: PMC7933320 DOI: 10.1007/s13659-020-00279-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 10/26/2020] [Indexed: 06/11/2023]
Abstract
Three previously undescribed cytochalasins, named xylariasins A‒C (1‒3), together with six known ones (4‒9) were isolated from Xylaria sp. CFL5, an endophytic fungus of Cephalotaxus fortunei. The chemical structures of all new compounds were elucidated on the basis of extensive spectroscopic data analyses and electronic circular dichroism calculation, as well as optical rotation calculation. Biological activities of compounds 1, 4‒9 were evaluated, including cytotoxic, LAG3/MHC II binding inhibition and LAG3/FGL1 binding inhibition activities. Compounds 6 and 9 possessed cytotoxicity against AGS cells at 5 μM, with inhibition rates of 94% and 64%, respectively. In addition, all tested isolates, except compound 6, exhibited obvious inhibitory activity against the interaction of both LAG3/MHC II and LAG3/FGL1. Compounds 1, 5, 7, and 8 inhibited LAG3/MHC II with IC50 values ranging from 2.37 to 4.74 μM. Meanwhile, the IC50 values of compounds 1, 7, and 8 against LAG3/FGL1 were 11.78, 4.39, and 7.45 μM, respectively.
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Affiliation(s)
- Kai-Liang Ma
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, People's Republic of China
| | - Shi-Hui Dong
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, People's Republic of China
| | - Hang-Ying Li
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, People's Republic of China
| | - Wen-Jun Wei
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, People's Republic of China
| | - Yong-Qiang Tu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, People's Republic of China
| | - Kun Gao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, People's Republic of China.
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20
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Becker K, Stadler M. Recent progress in biodiversity research on the Xylariales and their secondary metabolism. J Antibiot (Tokyo) 2021; 74:1-23. [PMID: 33097836 PMCID: PMC7732752 DOI: 10.1038/s41429-020-00376-0] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 09/16/2020] [Accepted: 09/19/2020] [Indexed: 12/18/2022]
Abstract
The families Xylariaceae and Hypoxylaceae (Xylariales, Ascomycota) represent one of the most prolific lineages of secondary metabolite producers. Like many other fungal taxa, they exhibit their highest diversity in the tropics. The stromata as well as the mycelial cultures of these fungi (the latter of which are frequently being isolated as endophytes of seed plants) have given rise to the discovery of many unprecedented secondary metabolites. Some of those served as lead compounds for development of pharmaceuticals and agrochemicals. Recently, the endophytic Xylariales have also come in the focus of biological control, since some of their species show strong antagonistic effects against fungal and other pathogens. New compounds, including volatiles as well as nonvolatiles, are steadily being discovered from these ascomycetes, and polythetic taxonomy now allows for elucidation of the life cycle of the endophytes for the first time. Moreover, recently high-quality genome sequences of some strains have become available, which facilitates phylogenomic studies as well as the elucidation of the biosynthetic gene clusters (BGC) as a starting point for synthetic biotechnology approaches. In this review, we summarize recent findings, focusing on the publications of the past 3 years.
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Affiliation(s)
- Kevin Becker
- Department Microbial Drugs, Helmholtz Centre for Infection Research GmbH, Inhoffenstraße 7, 38124, Braunschweig, Germany
- German Centre for Infection Research Association (DZIF), partner site Hannover-Braunschweig, Inhoffenstraße 7, 38124, Braunschweig, Germany
| | - Marc Stadler
- Department Microbial Drugs, Helmholtz Centre for Infection Research GmbH, Inhoffenstraße 7, 38124, Braunschweig, Germany.
- German Centre for Infection Research Association (DZIF), partner site Hannover-Braunschweig, Inhoffenstraße 7, 38124, Braunschweig, Germany.
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Boonmee S, Wanasinghe DN, Calabon MS, Huanraluek N, Chandrasiri SKU, Jones GEB, Rossi W, Leonardi M, Singh SK, Rana S, Singh PN, Maurya DK, Lagashetti AC, Choudhary D, Dai YC, Zhao CL, Mu YH, Yuan HS, He SH, Phookamsak R, Jiang HB, Martín MP, Dueñas M, Telleria MT, Kałucka IL, Jagodziński AM, Liimatainen K, Pereira DS, Phillips AJL, Suwannarach N, Kumla J, Khuna S, Lumyong S, Potter TB, Shivas RG, Sparks AH, Vaghefi N, Abdel-Wahab MA, Abdel-Aziz FA, Li GJ, Lin WF, Singh U, Bhatt RP, Lee HB, Nguyen TTT, Kirk PM, Dutta AK, Acharya K, Sarma VV, Niranjan M, Rajeshkumar KC, Ashtekar N, Lad S, Wijayawardene NN, Bhat DJ, Xu RJ, Wijesinghe SN, Shen HW, Luo ZL, Zhang JY, Sysouphanthong P, Thongklang N, Bao DF, Aluthmuhandiram JVS, Abdollahzadeh J, Javadi A, Dovana F, Usman M, Khalid AN, Dissanayake AJ, Telagathoti A, Probst M, Peintner U, Garrido-Benavent I, Bóna L, Merényi Z, Boros L, Zoltán B, Stielow JB, Jiang N, Tian CM, Shams E, Dehghanizadeh F, Pordel A, Javan-Nikkhah M, Denchev TT, Denchev CM, Kemler M, Begerow D, Deng CY, Harrower E, Bozorov T, Kholmuradova T, Gafforov Y, Abdurazakov A, Xu JC, Mortimer PE, Ren GC, Jeewon R, Maharachchikumbura SSN, Phukhamsakda C, Mapook A, Hyde KD. Fungal diversity notes 1387-1511: taxonomic and phylogenetic contributions on genera and species of fungal taxa. FUNGAL DIVERS 2021; 111:1-335. [PMID: 34899100 PMCID: PMC8648402 DOI: 10.1007/s13225-021-00489-3] [Citation(s) in RCA: 64] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Accepted: 08/10/2021] [Indexed: 01/01/2023]
Abstract
This article is the 13th contribution in the Fungal Diversity Notes series, wherein 125 taxa from four phyla, ten classes, 31 orders, 69 families, 92 genera and three genera incertae sedis are treated, demonstrating worldwide and geographic distribution. Fungal taxa described and illustrated in the present study include three new genera, 69 new species, one new combination, one reference specimen and 51 new records on new hosts and new geographical distributions. Three new genera, Cylindrotorula (Torulaceae), Scolecoleotia (Leotiales genus incertae sedis) and Xenovaginatispora (Lindomycetaceae) are introduced based on distinct phylogenetic lineages and unique morphologies. Newly described species are Aspergillus lannaensis, Cercophora dulciaquae, Cladophialophora aquatica, Coprinellus punjabensis, Cortinarius alutarius, C. mammillatus, C. quercoflocculosus, Coryneum fagi, Cruentomycena uttarakhandina, Cryptocoryneum rosae, Cyathus uniperidiolus, Cylindrotorula indica, Diaporthe chamaeropicola, Didymella azollae, Diplodia alanphillipsii, Dothiora coronicola, Efibula rodriguezarmasiae, Erysiphe salicicola, Fusarium queenslandicum, Geastrum gorgonicum, G. hansagiense, Helicosporium sexualis, Helminthosporium chiangraiensis, Hongkongmyces kokensis, Hydrophilomyces hydraenae, Hygrocybe boertmannii, Hyphoderma australosetigerum, Hyphodontia yunnanensis, Khaleijomyces umikazeana, Laboulbenia divisa, Laboulbenia triarthronis, Laccaria populina, Lactarius pallidozonarius, Lepidosphaeria strobelii, Longipedicellata megafusiformis, Lophiotrema lincangensis, Marasmius benghalensis, M. jinfoshanensis, M. subtropicus, Mariannaea camelliae, Melanographium smilaxii, Microbotryum polycnemoides, Mimeomyces digitatus, Minutisphaera thailandensis, Mortierella solitaria, Mucor harpali, Nigrograna jinghongensis, Odontia huanrenensis, O. parvispina, Paraconiothyrium ajrekarii, Parafuscosporella niloticus, Phaeocytostroma yomensis, Phaeoisaria synnematicus, Phanerochaete hainanensis, Pleopunctum thailandicum, Pleurotheciella dimorphospora, Pseudochaetosphaeronema chiangraiense, Pseudodactylaria albicolonia, Rhexoacrodictys nigrospora, Russula paravioleipes, Scolecoleotia eriocamporesi, Seriascoma honghense, Synandromyces makranczyi, Thyridaria aureobrunnea, Torula lancangjiangensis, Tubeufia longihelicospora, Wicklowia fusiformispora, Xenovaginatispora phichaiensis and Xylaria apiospora. One new combination, Pseudobactrodesmium stilboideus is proposed. A reference specimen of Comoclathris permunda is designated. New host or distribution records are provided for Acrocalymma fici, Aliquandostipite khaoyaiensis, Camarosporidiella laburni, Canalisporium caribense, Chaetoscutula juniperi, Chlorophyllum demangei, C. globosum, C. hortense, Cladophialophora abundans, Dendryphion hydei, Diaporthe foeniculina, D. pseudophoenicicola, D. pyracanthae, Dictyosporium pandanicola, Dyfrolomyces distoseptatus, Ernakulamia tanakae, Eutypa flavovirens, E. lata, Favolus septatus, Fusarium atrovinosum, F. clavum, Helicosporium luteosporum, Hermatomyces nabanheensis, Hermatomyces sphaericoides, Longipedicellata aquatica, Lophiostoma caudata, L. clematidis-vitalbae, Lophiotrema hydei, L. neoarundinaria, Marasmiellus palmivorus, Megacapitula villosa, Micropsalliota globocystis, M. gracilis, Montagnula thailandica, Neohelicosporium irregulare, N. parisporum, Paradictyoarthrinium diffractum, Phaeoisaria aquatica, Poaceascoma taiwanense, Saproamanita manicata, Spegazzinia camelliae, Submersispora variabilis, Thyronectria caudata, T. mackenziei, Tubeufia chiangmaiensis, T. roseohelicospora, Vaginatispora nypae, Wicklowia submersa, Xanthagaricus necopinatus and Xylaria haemorrhoidalis. The data presented herein are based on morphological examination of fresh specimens, coupled with analysis of phylogenetic sequence data to better integrate taxa into appropriate taxonomic ranks and infer their evolutionary relationships.
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Affiliation(s)
- Saranyaphat Boonmee
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100 Thailand
- School of Science, Mae Fah Luang University, Chiang Rai, 57100 Thailand
| | - Dhanushka N. Wanasinghe
- CAS Key Laboratory for Plant Biodiversity and Biogeography of East Asia (KLPB), Kunming Institute of Botany, Chinese Academy of Science, Kunming, 650201 Yunnan People’s Republic of China
- CIFOR-ICRAF China Program, World Agroforestry (ICRAF), Kunming, 650201 Yunnan People’s Republic of China
- Honghe Center for Mountain Futures, Kunming Institute of Botany, Honghe County, Kunming, 654400 Yunnan People’s Republic of China
| | - Mark S. Calabon
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100 Thailand
- School of Science, Mae Fah Luang University, Chiang Rai, 57100 Thailand
| | - Naruemon Huanraluek
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100 Thailand
| | - Sajini K. U. Chandrasiri
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100 Thailand
- School of Science, Mae Fah Luang University, Chiang Rai, 57100 Thailand
| | - Gareth E. B. Jones
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451 Saudi Arabia
| | - Walter Rossi
- Section Environmental Sciences, Department MeSVA, University of L’Aquila, 67100 Coppito, AQ Italy
| | - Marco Leonardi
- Section Environmental Sciences, Department MeSVA, University of L’Aquila, 67100 Coppito, AQ Italy
| | - Sanjay K. Singh
- National Fungal Culture Collection of India (NFCCI), Biodiversity and Palaeobiology Group, MACS Agharkar Research Institute, G.G. Agarkar Road, Pune, 411 004 India
| | - Shiwali Rana
- National Fungal Culture Collection of India (NFCCI), Biodiversity and Palaeobiology Group, MACS Agharkar Research Institute, G.G. Agarkar Road, Pune, 411 004 India
| | - Paras N. Singh
- National Fungal Culture Collection of India (NFCCI), Biodiversity and Palaeobiology Group, MACS Agharkar Research Institute, G.G. Agarkar Road, Pune, 411 004 India
| | - Deepak K. Maurya
- National Fungal Culture Collection of India (NFCCI), Biodiversity and Palaeobiology Group, MACS Agharkar Research Institute, G.G. Agarkar Road, Pune, 411 004 India
| | - Ajay C. Lagashetti
- National Fungal Culture Collection of India (NFCCI), Biodiversity and Palaeobiology Group, MACS Agharkar Research Institute, G.G. Agarkar Road, Pune, 411 004 India
| | - Deepika Choudhary
- National Fungal Culture Collection of India (NFCCI), Biodiversity and Palaeobiology Group, MACS Agharkar Research Institute, G.G. Agarkar Road, Pune, 411 004 India
| | - Yu-Cheng Dai
- Institute of Microbiology, School of Ecology and Nature Conservation, Beijing Forestry University, Beijing, 100083 People’s Republic of China
| | - Chang-Lin Zhao
- College of Biodiversity Conservation, Southwest Forestry University, Kunming, 650224 People’s Republic of China
| | - Yan-Hong Mu
- CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110164 People’s Republic of China
- University of the Chinese Academy of Sciences, Beijing, 100049 People’s Republic of China
| | - Hai-Sheng Yuan
- CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110164 People’s Republic of China
| | - Shuang-Hui He
- Institute of Microbiology, School of Ecology and Nature Conservation, Beijing Forestry University, Beijing, 100083 People’s Republic of China
| | - Rungtiwa Phookamsak
- CAS Key Laboratory for Plant Biodiversity and Biogeography of East Asia (KLPB), Kunming Institute of Botany, Chinese Academy of Science, Kunming, 650201 Yunnan People’s Republic of China
- CIFOR-ICRAF China Program, World Agroforestry (ICRAF), Kunming, 650201 Yunnan People’s Republic of China
- Honghe Center for Mountain Futures, Kunming Institute of Botany, Honghe County, Kunming, 654400 Yunnan People’s Republic of China
- Centre for Mountain Futures (CMF), Kunming Institute of Botany, Kunming, 650201 Yunnan People’s Republic of China
| | - Hong-Bo Jiang
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100 Thailand
- School of Science, Mae Fah Luang University, Chiang Rai, 57100 Thailand
- CAS Key Laboratory for Plant Biodiversity and Biogeography of East Asia (KLPB), Kunming Institute of Botany, Chinese Academy of Science, Kunming, 650201 Yunnan People’s Republic of China
| | - María P. Martín
- Department of Mycology, Real Jardín Botánico-CSIC, Plaza de Murillo 2, 28014 Madrid, Spain
| | - Margarita Dueñas
- Department of Mycology, Real Jardín Botánico-CSIC, Plaza de Murillo 2, 28014 Madrid, Spain
| | - M. Teresa Telleria
- Department of Mycology, Real Jardín Botánico-CSIC, Plaza de Murillo 2, 28014 Madrid, Spain
| | - Izabela L. Kałucka
- Department of Algology and Mycology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Łódź, Poland
| | | | - Kare Liimatainen
- Jodrell Laboratory, Royal Botanic Gardens, Kew, Richmond, TW9 3DS Surrey UK
| | - Diana S. Pereira
- Faculdade de Ciências, Biosystems and Integrative Sciences Institute (BioISI), Universidade de Lisboa, Campo Grande, 1749-016 Lisbon, Portugal
| | - Alan J. L. Phillips
- Faculdade de Ciências, Biosystems and Integrative Sciences Institute (BioISI), Universidade de Lisboa, Campo Grande, 1749-016 Lisbon, Portugal
| | - Nakarin Suwannarach
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, 50200 Thailand
- Research Center of Microbial Diversity and Sustainable Utilization, Faculty of Science, Chiang Mai University, Chiang Mai, 50200 Thailand
| | - Jaturong Kumla
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, 50200 Thailand
- Research Center of Microbial Diversity and Sustainable Utilization, Faculty of Science, Chiang Mai University, Chiang Mai, 50200 Thailand
| | - Surapong Khuna
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, 50200 Thailand
- Research Center of Microbial Diversity and Sustainable Utilization, Faculty of Science, Chiang Mai University, Chiang Mai, 50200 Thailand
| | - Saisamorn Lumyong
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, 50200 Thailand
- Research Center of Microbial Diversity and Sustainable Utilization, Faculty of Science, Chiang Mai University, Chiang Mai, 50200 Thailand
- Academy of Science, The Royal Society of Thailand, 10300 Bangkok, Thailand
| | - Tarynn B. Potter
- Centre for Crop Health, University of Southern Queensland, Toowoomba, QLD 4350 Australia
| | - Roger G. Shivas
- Centre for Crop Health, University of Southern Queensland, Toowoomba, QLD 4350 Australia
- Department of Agriculture and Fisheries, Dutton Park, QLD 4102 Australia
| | - Adam H. Sparks
- Centre for Crop Health, University of Southern Queensland, Toowoomba, QLD 4350 Australia
- Department of Primary Industries and Regional Development, Bentley Delivery Centre, Locked Bag 4, Bentley, WA 6983 Australia
| | - Niloofar Vaghefi
- Centre for Crop Health, University of Southern Queensland, Toowoomba, QLD 4350 Australia
| | - Mohamed A. Abdel-Wahab
- Department of Botany and Microbiology, Faculty of Science, Sohag University, Sohag, 82524 Egypt
| | - Faten A. Abdel-Aziz
- Department of Botany and Microbiology, Faculty of Science, Sohag University, Sohag, 82524 Egypt
| | - Guo-Jie Li
- Key Laboratory of Vegetable Germplasm Innovation and Utilization of Hebei, Collaborative Innovation Center of Vegetable, College of Horticulture, Hebei Agricultural University, No 2596 South Lekai Rd, Lianchi District, Baoding, 071001 Hebei China
| | - Wen-Fei Lin
- Institute of Edible and Medicinal Fungi, College of Life Science, Zhejiang University, 866 Yuhangtang Rd, Xihu District, Hangzhou, 310058 Zhejiang China
| | - Upendra Singh
- Department of Botany & Microbiology, HNB Garhwal University, Uttarakhand 246174 Srinagar, Garhwal, India
| | - Rajendra P. Bhatt
- Department of Botany & Microbiology, HNB Garhwal University, Uttarakhand 246174 Srinagar, Garhwal, India
| | - Hyang Burm Lee
- Environmental Microbiology Lab, Department of Agricultural Biological Chemistry, College of Agriculture & Life Sciences, Chonnam National University, Gwangju, 61186 Korea
| | - Thuong T. T. Nguyen
- Environmental Microbiology Lab, Department of Agricultural Biological Chemistry, College of Agriculture & Life Sciences, Chonnam National University, Gwangju, 61186 Korea
| | - Paul M. Kirk
- Biodiversity Informatics and Spatial Analysis, Royal Botanic Gardens Kew, Richmond, TW9 3DS Surrey UK
| | - Arun Kumar Dutta
- Department of Botany, West Bengal State University, North-24-Parganas, Barasat, West Bengal PIN- 700126 India
- Molecular and Applied Mycology and Plant Pathology Laboratory, Department of Botany, University of Calcutta, 35, Ballygunge Circular Road, Kolkata, West Bengal 700019 India
| | - Krishnendu Acharya
- Molecular and Applied Mycology and Plant Pathology Laboratory, Department of Botany, University of Calcutta, 35, Ballygunge Circular Road, Kolkata, West Bengal 700019 India
| | - V. Venkateswara Sarma
- Fungal Biotechnology Laboratory, Department of Biotechnology, Pondicherry University, Kalapet, Puducherry, 605014 India
| | - M. Niranjan
- Fungal Biotechnology Laboratory, Department of Biotechnology, Pondicherry University, Kalapet, Puducherry, 605014 India
- Department of Botany, Rajiv Gandhi University, Rono Hills, Doimukh, Itanagar, Arunachal Pradesh 791112 India
| | - Kunhiraman C. Rajeshkumar
- National Fungal Culture Collection of India (NFCCI), Biodiversity and Palaeobiology Group, MACS Agharkar Research Institute, G.G. Agarkar Road, Pune, 411 004 India
| | - Nikhil Ashtekar
- National Fungal Culture Collection of India (NFCCI), Biodiversity and Palaeobiology Group, MACS Agharkar Research Institute, G.G. Agarkar Road, Pune, 411 004 India
| | - Sneha Lad
- National Fungal Culture Collection of India (NFCCI), Biodiversity and Palaeobiology Group, MACS Agharkar Research Institute, G.G. Agarkar Road, Pune, 411 004 India
| | - Nalin N. Wijayawardene
- Center for Yunnan Plateau Biological Resources Protection and Utilization, College of Biological Resource and Food Engineering, Qujing Normal University, Qujing, 655011 Yunnan People’s Republic of China
| | - Darbe J. Bhat
- Azad Housing Society, No. 128/1-J, Goa Velha, Curca, Goa India
| | - Rong-Ju Xu
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100 Thailand
- School of Science, Mae Fah Luang University, Chiang Rai, 57100 Thailand
- CAS Key Laboratory for Plant Biodiversity and Biogeography of East Asia (KLPB), Kunming Institute of Botany, Chinese Academy of Science, Kunming, 650201 Yunnan People’s Republic of China
| | - Subodini N. Wijesinghe
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100 Thailand
- School of Science, Mae Fah Luang University, Chiang Rai, 57100 Thailand
| | - Hong-Wei Shen
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100 Thailand
- School of Science, Mae Fah Luang University, Chiang Rai, 57100 Thailand
- College of Agriculture and Biological Sciences, Dali University, Dali, 671003 People’s Republic of China
| | - Zong-Long Luo
- College of Agriculture and Biological Sciences, Dali University, Dali, 671003 People’s Republic of China
| | - Jing-Yi Zhang
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100 Thailand
- School of Science, Mae Fah Luang University, Chiang Rai, 57100 Thailand
- School of Food and Pharmaceutical Engineering, Guizhou Institute of Technology, Guiyang, 550003 People’s Republic of China
| | - Phongeun Sysouphanthong
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100 Thailand
- School of Science, Mae Fah Luang University, Chiang Rai, 57100 Thailand
- Biotechnology and Ecology Institute, Ministry of Agriculture and Forestry, P.O. Box: 811, Vientiane Capital, Lao People’s Democratic Republic
| | - Naritsada Thongklang
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100 Thailand
- School of Science, Mae Fah Luang University, Chiang Rai, 57100 Thailand
| | - Dan-Feng Bao
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100 Thailand
- College of Agriculture and Biological Sciences, Dali University, Dali, 671003 People’s Republic of China
- Department of Entomology and Plant Pathology, Faculty of Agriculture, Chiang Mai University, Chiang Mai, 50200 Thailand
| | - Janith V. S. Aluthmuhandiram
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100 Thailand
- School of Science, Mae Fah Luang University, Chiang Rai, 57100 Thailand
- Beijing Key Laboratory of Environment Friendly Management On Fruit Diseases and Pests in North China, Institute of Plant and Environment Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097 People’s Republic of China
| | - Jafar Abdollahzadeh
- Department of Plant Protection, Agriculture Faculty, University of Kurdistan, P.O. Box 416, Sanandaj, Iran
| | - Alireza Javadi
- Department of Botany, Iranian Research Institute of Plant Protection, P.O. Box 1454, 19395 Tehran, Iran
| | | | - Muhammad Usman
- Fungal Biology and Systematics Research Laboratory, Department of Botany, University of the Punjab, Quaid-e-Azam Campus, Lahore, 54590 Pakistan
| | - Abdul Nasir Khalid
- Fungal Biology and Systematics Research Laboratory, Department of Botany, University of the Punjab, Quaid-e-Azam Campus, Lahore, 54590 Pakistan
| | - Asha J. Dissanayake
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, 611731 People’s Republic of China
| | - Anusha Telagathoti
- Institute of Microbiology, University of Innsbruck, Technikerstrasse 25, 6020 Innsbruck, Austria
| | - Maraike Probst
- Institute of Microbiology, University of Innsbruck, Technikerstrasse 25, 6020 Innsbruck, Austria
| | - Ursula Peintner
- Institute of Microbiology, University of Innsbruck, Technikerstrasse 25, 6020 Innsbruck, Austria
| | - Isaac Garrido-Benavent
- Department of Botany and Geology (Fac. CC. Biológicas) & Institut Cavanilles de Biodiversitat I Biologia Evolutiva (ICBIBE), Universitat de València, C/ Dr. Moliner 50, Burjassot, 46100 València, Spain
| | - Lilla Bóna
- Department of Plant Physiology and Molecular Plant Biology, Eötvös Loránd University, Budapest, 1117 Hungary
| | - Zsolt Merényi
- Institute of Biochemistry, Synthetic and Systems Biology Unit, Biological Research Centre, Szeged, 6726 Hungary
| | | | - Bratek Zoltán
- Department of Plant Physiology and Molecular Plant Biology, Eötvös Loránd University, Budapest, 1117 Hungary
| | - J. Benjamin Stielow
- Centre of Expertise in Mycology of Radboud University Medical Centre/Canisius Wilhelmina Hospital, Nijmegen, The Netherlands
- Thermo Fisher Diagnostics, Specialty Diagnostics Group, Landsmeer, The Netherlands
| | - Ning Jiang
- The Key Laboratory for Silviculture and Conservation of the Ministry of Education, Beijing Forestry University, Beijing, 100083 People’s Republic of China
| | - Cheng-Ming Tian
- The Key Laboratory for Silviculture and Conservation of the Ministry of Education, Beijing Forestry University, Beijing, 100083 People’s Republic of China
| | - Esmaeil Shams
- Department of Plant Protection, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
| | - Farzaneh Dehghanizadeh
- Department of Agricultural Biotechnology, College of Agriculture Engineering, Isfahan University of Technology, Isfahan, Iran
| | - Adel Pordel
- Plant Protection Research Department, Baluchestan Agricultural and Natural Resources Research and Education Center, AREEO, Iranshahr, Iran
| | - Mohammad Javan-Nikkhah
- Department of Plant Protection, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
| | - Teodor T. Denchev
- Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, 2 Gagarin St., 1113 Sofia, Bulgaria
| | - Cvetomir M. Denchev
- Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, 2 Gagarin St., 1113 Sofia, Bulgaria
| | - Martin Kemler
- Evolution der Pflanzen und Pilze, Ruhr-Universität Bochum, ND 03, Universitätsstraße 150, 44801 Bochum, Germany
| | - Dominik Begerow
- Evolution der Pflanzen und Pilze, Ruhr-Universität Bochum, ND 03, Universitätsstraße 150, 44801 Bochum, Germany
| | - Chun-Ying Deng
- Guizhou Institute of Biology, Guizhou Academy of Sciences, Shanxi Road No. 1, Yunyan district, 550001 Guiyang, People’s Republic of China
| | | | - Tohir Bozorov
- Institute of Genetics and Plant Experimental Biology, Academy of Sciences of Republic of Uzbekistan, Yukori-Yuz, Kubray Ds, Tashkent, Uzbekistan 111226
| | - Tutigul Kholmuradova
- Laboratory of Mycology, Institute of Botany, Academy of Sciences of Republic of Uzbekistan, 32 Durmon Yuli Street, Tashkent, Uzbekistan 100125
| | - Yusufjon Gafforov
- Laboratory of Mycology, Institute of Botany, Academy of Sciences of Republic of Uzbekistan, 32 Durmon Yuli Street, Tashkent, Uzbekistan 100125
| | - Aziz Abdurazakov
- Laboratory of Mycology, Institute of Botany, Academy of Sciences of Republic of Uzbekistan, 32 Durmon Yuli Street, Tashkent, Uzbekistan 100125
- Department of Ecology and Botany, Faculty of Natural Sciences, Andijan State University, 12 University Street, Andijan, Uzbekistan 170100
| | - Jian-Chu Xu
- CAS Key Laboratory for Plant Biodiversity and Biogeography of East Asia (KLPB), Kunming Institute of Botany, Chinese Academy of Science, Kunming, 650201 Yunnan People’s Republic of China
- CIFOR-ICRAF China Program, World Agroforestry (ICRAF), Kunming, 650201 Yunnan People’s Republic of China
- Honghe Center for Mountain Futures, Kunming Institute of Botany, Honghe County, Kunming, 654400 Yunnan People’s Republic of China
- Centre for Mountain Futures (CMF), Kunming Institute of Botany, Kunming, 650201 Yunnan People’s Republic of China
| | - Peter E. Mortimer
- CAS Key Laboratory for Plant Biodiversity and Biogeography of East Asia (KLPB), Kunming Institute of Botany, Chinese Academy of Science, Kunming, 650201 Yunnan People’s Republic of China
- CIFOR-ICRAF China Program, World Agroforestry (ICRAF), Kunming, 650201 Yunnan People’s Republic of China
| | - Guang-Cong Ren
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100 Thailand
- School of Science, Mae Fah Luang University, Chiang Rai, 57100 Thailand
| | - Rajesh Jeewon
- Department of Health Sciences, Faculty of Medicine and Health Sciences, University of Mauritius, Réduit, Republic of Mauritius
| | - Sajeewa S. N. Maharachchikumbura
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, 611731 People’s Republic of China
| | - Chayanard Phukhamsakda
- Engineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun, 130118 China
| | - Ausana Mapook
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100 Thailand
| | - Kevin D. Hyde
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100 Thailand
- CAS Key Laboratory for Plant Biodiversity and Biogeography of East Asia (KLPB), Kunming Institute of Botany, Chinese Academy of Science, Kunming, 650201 Yunnan People’s Republic of China
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, 50200 Thailand
- Research Center of Microbial Diversity and Sustainable Utilization, Faculty of Science, Chiang Mai University, Chiang Mai, 50200 Thailand
- Innovative Institute of Plant Health, Zhongkai University of Agriculture and Engineering, Haizhu District, Guangzhou, 510225 People’s Republic of China
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Somboon P, Soontorngun N. An actin depolymerizing agent 19,20-epoxycytochalasin Q of Xylaria sp. BCC 1067 enhanced antifungal action of azole drugs through ROS-mediated cell death in yeast. Microbiol Res 2020; 243:126646. [PMID: 33227681 DOI: 10.1016/j.micres.2020.126646] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 10/30/2020] [Accepted: 11/06/2020] [Indexed: 01/21/2023]
Abstract
Multidrug resistance is a highly conserved phenomenon among all living organisms and a major veritable public health problem worldwide. Repetitive uses of antibiotics lead to antimicrobial drug resistance. Here, 19,20-epoxycytochalasin Q (ECQ) was isolated from endophytic fungus Xylaria sp. BCC 1067 and, its chemical structure was determined via chromatographic and spectral methods. ECQ displayed an antifungal activity with low MIC50 of 410 and 55 mg/l in the model yeast Saccharomyces cerevisiae wild-type and ScΔpdr5 strains, respectively. ECQ was a new inducer and potential substrate of key multi-drug efflux pumps S. cerevisiae ScPdr5 and Candida albicans CaCdr1. ECQ targeted actin filament, disrupting actin dynamics of yeast cells. ECQ also sensitized the ScΔsrv2 mutant, lacking suppressor of RasVal19. Overexpression of ScPDR5 or CaCDR1 genes prevented aggregation of actin and alleviated antifungal effect of ECQ. Additionally, ECQ induced high accumulation of reactive oxygen species, caused plasma membrane leakage and decreased yeast cell survival. Importantly, a discovery of ECQ implied a cellular connection between multi-drug resistance and actin stability, an important determinant of transporter mediated-drug resistance mechanism. Combination of ECQ and antifungal azoles displayed promising drug synergy against S. cerevisiae strains expressing multi-drug transporters, thereby providing potential solution for antifungal therapy and chemotherapeutic application.
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Affiliation(s)
- Pichayada Somboon
- Division of Biochemical Technology, School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkok, Thailand
| | - Nitnipa Soontorngun
- Division of Biochemical Technology, School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkok, Thailand.
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Schalk F, Um S, Guo H, Kreuzenbeck NB, Görls H, de Beer ZW, Beemelmanns C. Targeted Discovery of Tetrapeptides and Cyclic Polyketide-Peptide Hybrids from a Fungal Antagonist of Farming Termites. Chembiochem 2020; 21:2991-2996. [PMID: 32470183 PMCID: PMC7689812 DOI: 10.1002/cbic.202000331] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Indexed: 02/06/2023]
Abstract
Herein, we report the targeted isolation and characterization of four linear nonribosomally synthesized tetrapeptides (pseudoxylaramide A-D) and two cyclic nonribosomal peptide synthetase-polyketide synthase-derived natural products (xylacremolide A and B) from the termite-associated stowaway fungus Pseudoxylaria sp. X187. The fungal strain was prioritized for further metabolic analysis based on its taxonomical position and morphological and bioassay data. Metabolic data were dereplicated based on high-resolution tandem mass spectrometry data and global molecular networking analysis. The structure of all six new natural products was elucidated based on a combination of 1D and 2D NMR analysis, Marfey's analysis and X-ray crystallography.
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Affiliation(s)
- Felix Schalk
- Chemical Biology of Microbe - Host Interactions, Institution Leibniz Institute for Natural Product Research and Infection Biology, Hans Knöll Institute (HKI), Beutenbergstrasse 11a, 07745, Jena, Germany
| | - Soohyun Um
- Chemical Biology of Microbe - Host Interactions, Institution Leibniz Institute for Natural Product Research and Infection Biology, Hans Knöll Institute (HKI), Beutenbergstrasse 11a, 07745, Jena, Germany
| | - Huijuan Guo
- Chemical Biology of Microbe - Host Interactions, Institution Leibniz Institute for Natural Product Research and Infection Biology, Hans Knöll Institute (HKI), Beutenbergstrasse 11a, 07745, Jena, Germany
| | - Nina B Kreuzenbeck
- Chemical Biology of Microbe - Host Interactions, Institution Leibniz Institute for Natural Product Research and Infection Biology, Hans Knöll Institute (HKI), Beutenbergstrasse 11a, 07745, Jena, Germany
| | - Helmar Görls
- Institute for Inorganic and Analytical Chemistry, Friedrich-Schiller-University, Lessingstrasse 8, 07743, Jena, Germany
| | - Z Wilhelm de Beer
- Department of Biochemistry, Genetics and Microbiology, Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria Hatfield, 0002, Pretoria, South Africa
| | - Christine Beemelmanns
- Chemical Biology of Microbe - Host Interactions, Institution Leibniz Institute for Natural Product Research and Infection Biology, Hans Knöll Institute (HKI), Beutenbergstrasse 11a, 07745, Jena, Germany
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24
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Lee SR, Kreuzenbeck NB, Jang M, Oh T, Ko SK, Ahn JS, Beemelmanns C, Kim KH. Xyloneside A: A New Glycosylated Incisterol Derivative from Xylaria sp. FB. Chembiochem 2020; 21:2253-2258. [PMID: 32212411 DOI: 10.1002/cbic.202000065] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 03/25/2020] [Indexed: 12/16/2022]
Abstract
Xylaria species are prolific natural product producers. Here, we report the characterization of a new glycosylated incisterol derivative, called xyloneside A (1) and two known lignans (2 and 3) from the ascomycetous Xylaria sp. FB. The structure of xyloneside A (1) was determined by 1D and 2D NMR spectroscopy, high-resolution electrospray ionization mass spectrometry and electronic circular dichroism measurements. Xyloneside A is composed of a 1,2,3,4,5,10,19-heptanorergosterane skeleton and a β-D-mannopyranose moiety. This is the first report of an incisterol derivative from an Ascomycete. The biological effects of the isolated metabolites on cytotoxicity, autophagy, cell-migration, and angiogenesis were evaluated.
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Affiliation(s)
- Seoung Rak Lee
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419 (Republic of, Korea
| | - Nina B Kreuzenbeck
- Leibniz Institute for Natural Product Research and Infection Biology e.V, Hans-Knöll-Institute (HKI), Beutenbergstrasse 11a, 07745, Jena, Germany
| | - Mina Jang
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju, 28116 (Republic of, Korea.,Department of Biomolecular Science, KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon, 34141 (Republic of, Korea
| | - Taehoon Oh
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju, 28116 (Republic of, Korea.,College of Pharmacy, Chungbuk National University, Cheongju, Chungbuk, 28160 (Republic of, Korea
| | - Sung-Kyun Ko
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju, 28116 (Republic of, Korea
| | - Jong Seog Ahn
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju, 28116 (Republic of, Korea.,Department of Biomolecular Science, KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon, 34141 (Republic of, Korea
| | - Christine Beemelmanns
- Leibniz Institute for Natural Product Research and Infection Biology e.V, Hans-Knöll-Institute (HKI), Beutenbergstrasse 11a, 07745, Jena, Germany
| | - Ki Hyun Kim
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419 (Republic of, Korea
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25
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Rakshith D, Gurudatt DM, Yashavantha Rao H, Chandra Mohana N, Nuthan B, Ramesha K, Satish S. Bioactivity-guided isolation of antimicrobial metabolite from Xylaria sp. Process Biochem 2020. [DOI: 10.1016/j.procbio.2020.01.028] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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26
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Tang GH, Lu N, Li W, Wu M, Chen YY, Zhang HY, He SY. Mannosylxylarinolide, a new 3,4- seco-ergostane-type steroidal saponin featuring a β-d-mannose from the endophytic fungus Xylaria sp. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2020; 22:397-403. [PMID: 30693785 DOI: 10.1080/10286020.2018.1563075] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 12/12/2018] [Accepted: 12/13/2018] [Indexed: 06/09/2023]
Abstract
Mannosylxylarinolide (1), a new 3,4-seco-ergostane-type steroidal saponin featuring a β-d-mannose moiety, was isolated from the culture of the endophytic fungus Xylaria sp. that had been isolated from an ornamental plant of Hoya sp. The gross structure was determined by spectroscopic data, and the absolute configuration of the new 3,4-seco-ergostane-type steroidal saponin (1) was determined by X-ray diffraction analysis.
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Affiliation(s)
- Gui-Hua Tang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Na Lu
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
- Hua Yi Ecological Landscape Architecture Co. Ltd., Hefei 230088, China
| | - Wei Li
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Min Wu
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
- Guangzhou Science and Technology Information Consulting Co. Ltd., Guangzhou 510530, China
| | - Yun-Yun Chen
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Hai-Ying Zhang
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
- Guangdong Polytechnic of Science and Trade, Guangzhou 510430, China
| | - Shao-Yun He
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
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Nakashima KI, Tomida J, Hirai T, Kawamura Y, Inoue M. Paraconiothins A-J: Sesquiterpenoids from the Endophytic Fungus Paraconiothyrium brasiliense ECN258. JOURNAL OF NATURAL PRODUCTS 2019; 82:3347-3356. [PMID: 31815465 DOI: 10.1021/acs.jnatprod.9b00638] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Paraconiothins A-J (1-10), 10 new sesquiterpenoids, as well as five known sesquiterpenoids, were isolated from the cultures of the endophytic fungus Paraconiothyrium brasiliense ECN-258. The structures of the sesquiterpenoids were elucidated by extensive spectroscopic analysis. Furthermore, the absolute structures of 7 and 8 were determined by comparing their experimental and computed electronic circular dichroism data. Paraconiothins A-G (1-7) were eremophilane sesquiterpenoids, while paraconiothins H-J (8-10) had new or rare carbon frameworks that are possibly biosynthesized by a pathway involving the rearrangement of eremophilane sesquiterpenoids. Paraconiothins C (3) and I (9) exhibited an inhibitory effect on the liver X receptor α at a concentration of 50 μM.
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Affiliation(s)
- Ken-Ichi Nakashima
- Laboratory of Medicinal Resources, School of Pharmacy , Aichi Gakuin University , 1-100 Kusumoto-cho, Chikusa-ku, Nagoya , Aichi 464-8650 , Japan
| | - Junko Tomida
- Department of Microbiology, School of Pharmacy , Aichi Gakuin University , 1-100 Kusumoto-cho, Chikusa-ku, Nagoya , Aichi 464-8650 , Japan
| | - Takao Hirai
- Laboratory of Medicinal Resources, School of Pharmacy , Aichi Gakuin University , 1-100 Kusumoto-cho, Chikusa-ku, Nagoya , Aichi 464-8650 , Japan
| | - Yoshiaki Kawamura
- Department of Microbiology, School of Pharmacy , Aichi Gakuin University , 1-100 Kusumoto-cho, Chikusa-ku, Nagoya , Aichi 464-8650 , Japan
| | - Makoto Inoue
- Laboratory of Medicinal Resources, School of Pharmacy , Aichi Gakuin University , 1-100 Kusumoto-cho, Chikusa-ku, Nagoya , Aichi 464-8650 , Japan
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Duan X, Xu F, Qin D, Gao T, Shen W, Zuo S, Yu B, Xu J, Peng Y, Dong J. Diversity and bioactivities of fungal endophytes from Distylium chinense, a rare waterlogging tolerant plant endemic to the Three Gorges Reservoir. BMC Microbiol 2019; 19:278. [PMID: 31822262 PMCID: PMC6902458 DOI: 10.1186/s12866-019-1634-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Accepted: 11/06/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The present study involves diversity and biological activities of the endophytic fungal community from Distylium chinense, a rare waterlogging tolerant plant endemic to the Three Gorges Reservoir. This study has been conducted hypothesizing that the microbial communities in the TGR area would contribute to the host plant tolerating a range of abiotic stress such as summer flooding, infertility, drought, salinity and soil erosion etc., and they may produce new metabolites, which may possess plentiful bioactive property, especially antioxidant activity. Therefore in the current study, the antioxidant, antimicrobial and anticancer activities of 154 endophytes recovered from D. chinense have been investigated. Furthermore, the active metabolites of the most broad-spectrum bioactive strain have also been studied. RESULTS A total of 154 fungal endophytes were isolated from roots and stems. They were categorized into 30 morphotypes based on cultural characteristics and were affiliated with 27 different taxa. Among these, the most abundant fungal orders included Diaporthales (34.4%) and Botryosphaeriales (30.5%), which were predominantly represented by the species Phomopsis sp. (24.7%) and Neofusicoccum parvum (23.4%). Fermentation extracts were evaluated, screening for antioxidant, antimicrobial and anticancer activities. Among the 154 isolates tested, 99 (64.3%) displayed significant antioxidant activity, 153 (99.4%) exhibited inclusive antimicrobial activity against at least one tested microorganism and 27 (17.5%) showed exclusive anticancer activity against one or more cancer cell lines. Specifically, the crude extract of Irpex lacteus DR10-1 exhibited note-worthy bioactivities. Further chemical investigation on DR10-1 strain resulted in the isolation and identification of two known bioactive metabolites, indole-3-carboxylic acid (1) and indole-3-carboxaldehyde (2), indicating their potential roles in plant growth promotion and human medicinal value. CONCLUSION These results indicated that diverse endophytic fungal population inhabits D. chinense. One of the fungal isolate DR10-1 (Irpex lacteus) exhibited significant antioxidant, antimicrobial and anticancer potential. Further, its active secondary metabolites 1 and 2 also showed antioxidant, antimicrobial and anticancer potential.
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Affiliation(s)
- Xiaoxiang Duan
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, School of Life Sciences, Southwest University, Chongqing, 400715 People’s Republic of China
- Laboratory Animal Research Institute of Chongqing Academy of Chinese Materia Medica, Chongqing, 400065 People’s Republic of China
| | - Fangfang Xu
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, School of Life Sciences, Southwest University, Chongqing, 400715 People’s Republic of China
| | - Dan Qin
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, School of Life Sciences, Southwest University, Chongqing, 400715 People’s Republic of China
| | - Tiancong Gao
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, School of Life Sciences, Southwest University, Chongqing, 400715 People’s Republic of China
| | - Weiyun Shen
- First Affiliated Hospital, Huzhou Teachers College, The First People’s Hospital of Huzhou, 158 Guangchanghou Road, Huzhou, 313000 People’s Republic of China
| | - Shihao Zuo
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, School of Life Sciences, Southwest University, Chongqing, 400715 People’s Republic of China
| | - Baohong Yu
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, School of Life Sciences, Southwest University, Chongqing, 400715 People’s Republic of China
| | - Jieru Xu
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, School of Life Sciences, Southwest University, Chongqing, 400715 People’s Republic of China
| | - Yajun Peng
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, School of Life Sciences, Southwest University, Chongqing, 400715 People’s Republic of China
| | - Jinyan Dong
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, School of Life Sciences, Southwest University, Chongqing, 400715 People’s Republic of China
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Draft Genome Sequence of Xylaria hypoxylon DSM 108379, a Ubiquitous Fungus on Hardwood. Microbiol Resour Announc 2019; 8:8/44/e00845-19. [PMID: 31672741 PMCID: PMC6953518 DOI: 10.1128/mra.00845-19] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
The saprotrophic ascomycete Xylaria hypoxylon is a widespread wood-decaying fungus on deciduous trees. Here, we report its draft genome sequence. The genome assembly has a size of 42.8 Mbp and a G+C content of 47.1% and includes 11,038 predicted genes. The saprotrophic ascomycete Xylaria hypoxylon is a widespread wood-decaying fungus on deciduous trees. Here, we report its draft genome sequence. The genome assembly has a size of 42.8 Mbp and a G+C content of 47.1% and includes 11,038 predicted genes.
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30
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Helaly SE, Thongbai B, Stadler M. Diversity of biologically active secondary metabolites from endophytic and saprotrophic fungi of the ascomycete order Xylariales. Nat Prod Rep 2019; 35:992-1014. [PMID: 29774351 DOI: 10.1039/c8np00010g] [Citation(s) in RCA: 127] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Covering: up to December 2017 The diversity of secondary metabolites in the fungal order Xylariales is reviewed with special emphasis on correlations between chemical diversity and biodiversity as inferred from recent taxonomic and phylogenetic studies. The Xylariales are arguably among the predominant fungal endophytes, which are the producer organisms of pharmaceutical lead compounds including the antimycotic sordarins and the antiparasitic nodulisporic acids, as well as the marketed drug, emodepside. Many Xylariales are "macromycetes", which form conspicuous fruiting bodies (stromata), and the metabolite profiles that are predominant in the stromata are often complementary to those encountered in corresponding mycelial cultures of a given species. Secondary metabolite profiles have recently been proven highly informative as additional parameters to support classical morphology and molecular phylogenetic approaches in order to reconstruct evolutionary relationships among these fungi. Even the recent taxonomic rearrangement of the Xylariales has been relying on such approaches, since certain groups of metabolites seem to have significance at the species, genus or family level, respectively, while others are only produced in certain taxa and their production is highly dependent on the culture conditions. The vast metabolic diversity that may be encountered in a single species or strain is illustrated based on examples like Daldinia eschscholtzii, Hypoxylon rickii, and Pestalotiopsis fici. In the future, it appears feasible to increase our knowledge of secondary metabolite diversity by embarking on certain genera that have so far been neglected, as well as by studying the volatile secondary metabolites more intensively. Methods of bioinformatics, phylogenomics and transcriptomics, which have been developed to study other fungi, are readily available for use in such scenarios.
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Affiliation(s)
- Soleiman E Helaly
- Dept Microbial Drugs, Helmholtz Centre for Infection Research, Inhoffenstr. 7, 38124 Braunschweig, Germany.
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Wang WX, Feng T, Li ZH, Li J, Ai HL, Liu JK. Cytochalasins D1 and C1, unique cytochalasans from endophytic fungus Xylaria cf. curta. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.150952] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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32
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Wang WX, Li ZH, He J, Feng T, Li J, Liu JK. Cytotoxic cytochalasans from fungus Xylaria longipes. Fitoterapia 2019; 137:104278. [PMID: 31351910 DOI: 10.1016/j.fitote.2019.104278] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 07/22/2019] [Accepted: 07/24/2019] [Indexed: 11/19/2022]
Abstract
Five new cytochalasans (1-5) were isolated from the rice fermentation of fungus Xylaria longipes, along with seven known compounds cytochalasin P (6), cytochalasin D (7), zygosporin D (8), 7-O-acetylcytochalasin D (9), cytochalasin C (10), 6,7-dihydro-7-oxo-cytochalasin C (11), and 6,7-dihydro-7-oxo-deacetylcytochalasin C (12). Their structures and absolute configurations were determined by extensive experimental spectroscopic methods as well as ECD calculation and GIAO 13C NMR calculation. The cytotoxicity of obtained compounds (1-12) was evaluated against human cancer cell lines HL-60, A549, SMMC-7721, MCF-7, and SW480. Compounds 6-8, 11, and 12 showed cytotoxicity with IC50 value ranging from 4.17-37.18 μM.
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Affiliation(s)
- Wen-Xuan Wang
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, Hubei 430074, PR China; National Demonstration Center for Experimental Ethnopharmacology Education (South-Central University for Nationalities), PR China
| | - Zheng-Hui Li
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, Hubei 430074, PR China; National Demonstration Center for Experimental Ethnopharmacology Education (South-Central University for Nationalities), PR China.
| | - Juan He
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, Hubei 430074, PR China; National Demonstration Center for Experimental Ethnopharmacology Education (South-Central University for Nationalities), PR China
| | - Tao Feng
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, Hubei 430074, PR China; National Demonstration Center for Experimental Ethnopharmacology Education (South-Central University for Nationalities), PR China
| | - Jing Li
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, Hubei 430074, PR China; National Demonstration Center for Experimental Ethnopharmacology Education (South-Central University for Nationalities), PR China.
| | - Ji-Kai Liu
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, Hubei 430074, PR China; National Demonstration Center for Experimental Ethnopharmacology Education (South-Central University for Nationalities), PR China.
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33
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Han WB, Zhai YJ, Gao Y, Zhou HY, Xiao J, Pescitelli G, Gao JM. Cytochalasins and an Abietane-Type Diterpenoid with Allelopathic Activities from the Endophytic Fungus Xylaria Species. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:3643-3650. [PMID: 30875204 DOI: 10.1021/acs.jafc.9b00273] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Bioactivity-guided isolation of the cultures of the endophytic fugus Xylaria sp. XC-16 residing in a deciduous tree Toona sinensis led to the discovery of four new allelochemicals (1-4), including three cytochalasins, epoxycytochalasin Z17 (1), epoxycytochalasin Z8 (2), and epoxyrosellichalasin (3), and an abietane-type diterpenoid, hydroxyldecandrin G (4), along with four known analogues, 10-phenyl-[12]-cytochalasins Z16 (5) and Z17 (6), cytochalasin K (7), and cytochalasin E (8). The structures of these compounds were elucidated by comprehensive spectroscopic methods, and their absolute configurations were determined by electronic circular dichroism (CD) and X-ray diffraction. All of the chemicals were tested for their allelopathic effects on turnip ( Raphanus sativus) and wheat ( Triticum aestivum). Notably, compounds 3, 4, and 7 strongly inhibited wheat shoot elongation, and compounds 5, 7, and 8 inhibited wheat root elongation, showing comparable IC50 values to the positive control glyphosate. Meanwhile, compound 8 was a potential inhibitor on turnip root elongation, with an IC50 value of 1.57 ± 0.21 μM, which was 50-fold more potent than glyphosate. Nevertheless, compounds 5 and 7 stimulated turnip shoot elongation at lower concentrations.
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Affiliation(s)
- Wen-Bo Han
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy , Northwest A&F University , Yangling , Shaanxi 712100 , People's Republic of China
| | - Yi-Jie Zhai
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy , Northwest A&F University , Yangling , Shaanxi 712100 , People's Republic of China
| | - Yuqi Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy , Northwest A&F University , Yangling , Shaanxi 712100 , People's Republic of China
| | - Hui-Yi Zhou
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy , Northwest A&F University , Yangling , Shaanxi 712100 , People's Republic of China
| | - Jian Xiao
- Shaanxi Key Laboratory of Phytochemistry, College of Chemistry and Chemical Engineering , Baoji University of Arts and Sciences , Baoji , Shaanxi 721013 , People's Republic of China
| | - Gennaro Pescitelli
- Dipartimento di Chimica e Chimica Industriale , Università di Pisa , Via Risorgimento 35 , I-56126 Pisa , Italy
| | - Jin-Ming Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry and Pharmacy , Northwest A&F University , Yangling , Shaanxi 712100 , People's Republic of China
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Guo CJ, Wu P, Xue JH, Li HX, Wei XY. Xylarodons A and B, new hexaketides from the endophytic fungus Xylaria sp. SC1440. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2019; 21:343-350. [PMID: 29382217 DOI: 10.1080/10286020.2018.1431218] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Accepted: 01/18/2018] [Indexed: 06/07/2023]
Abstract
Two new hexaketides, xylarodons B (1) and C (2), were isolated from solid cultures of the endophytic fungus Xylaria sp. SC1440. The structures of these compounds were elucidated on the basis of detailed 1D, 2D NMR, and HRESIMS analysis. Their absolute configurations were established by experimental and TDDFT calculated ECD spectra. The isolated compounds were evaluated for cytotoxic and tyrosinase inhibitory activity.
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Affiliation(s)
- Chen-Jia Guo
- a Key Laboratory of Plant Resources Conservation and Sustainable Utilization, Guangdong Provincial Key Laboratory of Applied Botany , South China Botanical Garden, Chinese Academy of Sciences , Guangzhou 510650 , China
| | - Ping Wu
- a Key Laboratory of Plant Resources Conservation and Sustainable Utilization, Guangdong Provincial Key Laboratory of Applied Botany , South China Botanical Garden, Chinese Academy of Sciences , Guangzhou 510650 , China
| | - Jing-Hua Xue
- a Key Laboratory of Plant Resources Conservation and Sustainable Utilization, Guangdong Provincial Key Laboratory of Applied Botany , South China Botanical Garden, Chinese Academy of Sciences , Guangzhou 510650 , China
| | - Han-Xiang Li
- a Key Laboratory of Plant Resources Conservation and Sustainable Utilization, Guangdong Provincial Key Laboratory of Applied Botany , South China Botanical Garden, Chinese Academy of Sciences , Guangzhou 510650 , China
| | - Xiao-Yi Wei
- a Key Laboratory of Plant Resources Conservation and Sustainable Utilization, Guangdong Provincial Key Laboratory of Applied Botany , South China Botanical Garden, Chinese Academy of Sciences , Guangzhou 510650 , China
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Li J, Wang WX, Chen HP, Li ZH, He J, Zheng YS, Sun H, Huang R, Yuan QX, Wang X, Feng T, Liu JK. (±)-Xylaridines A and B, Highly Conjugated Alkaloids from the Fungus Xylaria longipes. Org Lett 2019; 21:1511-1514. [DOI: 10.1021/acs.orglett.9b00312] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jing Li
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, China
| | - Wen-Xuan Wang
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, China
| | - He-Ping Chen
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, China
| | - Zheng-Hui Li
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, China
| | - Juan He
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, China
| | - Yong-Sheng Zheng
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, China
| | - Huan Sun
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, China
| | - Rong Huang
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, China
| | - Qing-Xia Yuan
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, China
| | - Xian Wang
- College of Chemistry & Materials Science, South-Central University for Nationalities, Wuhan 430074, China
| | - Tao Feng
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, China
| | - Ji-Kai Liu
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, China
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Nguyen HT, Kim S, Yu NH, Park AR, Yoon H, Bae CH, Yeo JH, Kim IS, Kim JC. Antimicrobial activities of an oxygenated cyclohexanone derivative isolated from Amphirosellinia nigrospora JS-1675 against various plant pathogenic bacteria and fungi. J Appl Microbiol 2019; 126:894-904. [PMID: 30358043 DOI: 10.1111/jam.14138] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 10/16/2018] [Accepted: 10/16/2018] [Indexed: 01/17/2023]
Abstract
AIMS To evaluate the antimicrobial activities of an active compound isolated from the culture broth of Amphirosellinia nigrospora JS-1675 against various plant pathogenic bacteria and fungi. METHODS AND RESULTS While screening for bioactive secondary metabolites from endophytic fungi, we found that A. nigrospora JS-1675 showed strong in vitro antibacterial activity against Ralstonia solanacearum. One compound (1) was isolated and identified as (4S, 5S, 6S)-5,6-epoxy-4-hydroxy-3-methoxy-5-methyl-cyclohex-2-en-1-one. Growth of most of the tested phytopathogenic bacteria was inhibited by compound 1 and the ethyl acetate (EtOAc) layer except Pseudomonas syringae pv. lachrymans. Compound 1 also inhibited the mycelial growth of several plant pathogenic fungi. Both compound 1 and the EtOAc layer reduced bacterial leaf spot disease in detached peach leaves. They also suppressed the development of bacterial wilt on tomato seedlings quite effectively. CONCLUSIONS Amphirosellinia nigrospora JS-1675 showed antimicrobial activity against plant pathogenic bacteria and fungi by producing compound 1. SIGNIFICANCE AND IMPACT OF THE STUDY This is the first report on the occurrence of compound 1 in A. nigrospora JS-1675 and its efficacy against plant pathogenic bacteria and fungi. Their strong disease control efficacy against tomato bacterial wilt suggests that this fungus can be used as a microbial bactericide.
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Affiliation(s)
- H T Nguyen
- Department of Agricultural Chemistry, Institute of Environmentally Friendly Agriculture, College of Agriculture and Life Sciences, Chonnam National University, Gwangju, Korea
| | - S Kim
- Biological and Genetic Resources Assessment Division, National Institute of Biological Resources, Incheon, Korea
| | - N H Yu
- Department of Agricultural Chemistry, Institute of Environmentally Friendly Agriculture, College of Agriculture and Life Sciences, Chonnam National University, Gwangju, Korea
| | - A R Park
- Department of Agricultural Chemistry, Institute of Environmentally Friendly Agriculture, College of Agriculture and Life Sciences, Chonnam National University, Gwangju, Korea
| | - H Yoon
- Biological and Genetic Resources Assessment Division, National Institute of Biological Resources, Incheon, Korea
| | - C-H Bae
- Biological and Genetic Resources Assessment Division, National Institute of Biological Resources, Incheon, Korea
| | - J H Yeo
- Biological and Genetic Resources Assessment Division, National Institute of Biological Resources, Incheon, Korea
| | - I S Kim
- Department of Agricultural Chemistry, Institute of Environmentally Friendly Agriculture, College of Agriculture and Life Sciences, Chonnam National University, Gwangju, Korea
| | - J-C Kim
- Department of Agricultural Chemistry, Institute of Environmentally Friendly Agriculture, College of Agriculture and Life Sciences, Chonnam National University, Gwangju, Korea
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Guo H, Schmidt A, Stephan P, Raguž L, Braga D, Kaiser M, Dahse HM, Weigel C, Lackner G, Beemelmanns C. Precursor-Directed Diversification of Cyclic Tetrapeptidic Pseudoxylallemycins. Chembiochem 2018; 19:2307-2311. [DOI: 10.1002/cbic.201800503] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Indexed: 01/18/2023]
Affiliation(s)
- Huijuan Guo
- Leibniz Institute for Natural Product Research and Infection Biology; Hans Knöll Institute; Beutenbergstraße 11a 07745 Jena Germany
| | - Alexander Schmidt
- Leibniz Institute for Natural Product Research and Infection Biology; Hans Knöll Institute; Beutenbergstraße 11a 07745 Jena Germany
| | - Philipp Stephan
- Leibniz Institute for Natural Product Research and Infection Biology; Hans Knöll Institute; Beutenbergstraße 11a 07745 Jena Germany
| | - Luka Raguž
- Leibniz Institute for Natural Product Research and Infection Biology; Hans Knöll Institute; Beutenbergstraße 11a 07745 Jena Germany
| | - Daniel Braga
- Leibniz Institute for Natural Product Research and Infection Biology; Hans Knöll Institute; Beutenbergstraße 11a 07745 Jena Germany
- Friedrich-Schiller-Universität Jena; Junior Research Group Synthetic Microbiology at the Hans-Knöll-Institute; Adolf-Reichwein-Strasse 23 07745 Jena Germany
| | - Marcel Kaiser
- Parasite Chemotherapy Unit; Swiss Tropical and Public Health Institute; Socinstrasse 57 4002 Basel Switzerland
- Parasite Chemotherapy; University of Basel; Petersplatz 1 4003 Basel Switzerland
| | - Hans-Martin Dahse
- Leibniz Institute for Natural Product Research and Infection Biology; Hans Knöll Institute; Beutenbergstraße 11a 07745 Jena Germany
| | - Christiane Weigel
- Leibniz Institute for Natural Product Research and Infection Biology; Hans Knöll Institute; Beutenbergstraße 11a 07745 Jena Germany
| | - Gerald Lackner
- Leibniz Institute for Natural Product Research and Infection Biology; Hans Knöll Institute; Beutenbergstraße 11a 07745 Jena Germany
- Friedrich-Schiller-Universität Jena; Junior Research Group Synthetic Microbiology at the Hans-Knöll-Institute; Adolf-Reichwein-Strasse 23 07745 Jena Germany
| | - Christine Beemelmanns
- Leibniz Institute for Natural Product Research and Infection Biology; Hans Knöll Institute; Beutenbergstraße 11a 07745 Jena Germany
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Hongsanan S, Jeewon R, Purahong W, Xie N, Liu JK, Jayawardena RS, Ekanayaka AH, Dissanayake A, Raspé O, Hyde KD, Stadler M, Peršoh D. Can we use environmental DNA as holotypes? FUNGAL DIVERS 2018. [DOI: 10.1007/s13225-018-0404-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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39
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Deshmukh SK, Gupta MK, Prakash V, Saxena S. Endophytic Fungi: A Source of Potential Antifungal Compounds. J Fungi (Basel) 2018; 4:E77. [PMID: 29941838 PMCID: PMC6162562 DOI: 10.3390/jof4030077] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2018] [Revised: 06/13/2018] [Accepted: 06/16/2018] [Indexed: 01/27/2023] Open
Abstract
The emerging and reemerging forms of fungal infections encountered in the course of allogeneic bone marrow transplantations, cancer therapy, and organ transplants have necessitated the discovery of antifungal compounds with enhanced efficacy and better compatibility. A very limited number of antifungal compounds are in practice against the various forms of topical and systemic fungal infections. The trends of new antifungals being introduced into the market have remained insignificant while resistance towards the introduced drug has apparently increased, specifically in patients undergoing long-term treatment. Considering the immense potential of natural microbial products for the isolation and screening of novel antibiotics for different pharmaceutical applications as an alternative source has remained largely unexplored. Endophytes are one such microbial community that resides inside all plants without showing any symptoms with the promise of producing diverse bioactive molecules and novel metabolites which have application in medicine, agriculture, and industrial set ups. This review substantially covers the antifungal compounds, including volatile organic compounds, isolated from fungal endophytes of medicinal plants during 2013⁻2018. Some of the methods for the activation of silent biosynthetic genes are also covered. As such, the compounds described here possess diverse configurations which can be a step towards the development of new antifungal agents directly or precursor molecules after the required modification.
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Affiliation(s)
- Sunil K Deshmukh
- TERI-Deakin Nano Biotechnology Centre, The Energy and Resources Institute (TERI), Darbari Seth Block, IHC Complex, Lodhi Road, New Delhi 110003, India.
| | - Manish K Gupta
- TERI-Deakin Nano Biotechnology Centre, The Energy and Resources Institute (TERI), Darbari Seth Block, IHC Complex, Lodhi Road, New Delhi 110003, India.
| | - Ved Prakash
- Department of Biotechnology, Motilal Nehru National Institute of Technology, Allahabad 211004, India.
| | - Sanjai Saxena
- Department of Biotechnology, Thapar Institute of Engineering & Technology, Deemed to be a University, Patiala, Punjab 147004, India.
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40
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Lin FL, Ho JD, Cheng YW, Chiou GCY, Yen JL, Chang HM, Lee TH, Hsiao G. Theissenolactone C Exhibited Ocular Protection of Endotoxin-Induced Uveitis by Attenuating Ocular Inflammatory Responses and Glial Activation. Front Pharmacol 2018; 9:326. [PMID: 29686615 PMCID: PMC5900795 DOI: 10.3389/fphar.2018.00326] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Accepted: 03/21/2018] [Indexed: 12/11/2022] Open
Abstract
The aim of this study was to investigate the effects of a natural component, theissenolactone C (LC53), on the ocular inflammation of experimental endotoxin-induced uveitis (EIU) and its related mechanisms in microglia. Evaluation of the severity of anterior uveitis indicated that LC53 treatment significantly decreased iridal hyperemia and restored the clinical scores. Additionally, the deficient retina functions of electroretinography were improved by LC53. LC53 significantly reduced levels of tumor necrosis factor (TNF)-α, monocyte chemoattractant protein-1, protein leakage and activation of matrix metalloproteinases in the anterior section during EIU. Moreover, LC53 treatment decreased the oxidative stress as well as neuroinflammatory reactivities of GFAP and Iba-1 in the posterior section. Furthermore, LC53 decreased the phosphorylation of p65, expression of HSP90, Bax, and cleaved-caspase-3 in EIU. According to the microglia studies, LC53 significantly abrogated the productions of TNF-α, PGE2, NO and ROS, as well as inducible NO synthase and cyclooxygenase-2 expression in LPS-stimulated microglial BV2 cells. The microglial activation of IKKβ, p65 phosphorylation and nuclear phosphorylated p65 translocation were strongly attenuated by LC53. On the other hand, LC53 exhibited the inhibitory effects on JNK and ERK MAPKs activation. Our findings indicated that LC53 exerted the ocular-protective effect through its inhibition on neuroinflammation, glial activation, and apoptosis in EIU, suggesting a therapeutic potential with down-regulation of the NF-κB signaling for uveitis and retinal inflammatory diseases.
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Affiliation(s)
- Fan-Li Lin
- Graduate Institute of Medical Sciences and Department of Pharmacology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Jau-Der Ho
- Department of Ophthalmology, Taipei Medical University Hospital, Taipei, Taiwan
| | - Yu-Wen Cheng
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - George C Y Chiou
- Department of Neuroscience and Experimental Therapeutics and Institute of Ocular Pharmacology, College of Medicine, Texas A&M Health Science Center, College Station, TX, United States
| | - Jing-Lun Yen
- Graduate Institute of Medical Sciences and Department of Pharmacology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Hung-Ming Chang
- Department of Anatomy, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Tzong-Huei Lee
- Institute of Fisheries Science, National Taiwan University, Taipei, Taiwan
| | - George Hsiao
- Graduate Institute of Medical Sciences and Department of Pharmacology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Ph.D. Program for the Clinical Drug Discovery from Botanical Herbs, College of Pharmacy, Taipei Medical University, Taipei, Taiwan
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Elias LM, Fortkamp D, Sartori SB, Ferreira MC, Gomes LH, Azevedo JL, Montoya QV, Rodrigues A, Ferreira AG, Lira SP. The potential of compounds isolated from Xylaria spp. as antifungal agents against anthracnose. Braz J Microbiol 2018; 49:840-847. [PMID: 29631892 PMCID: PMC6175768 DOI: 10.1016/j.bjm.2018.03.003] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 02/19/2018] [Accepted: 03/09/2018] [Indexed: 11/30/2022] Open
Abstract
Anthracnose is a crop disease usually caused by fungi in the genus Colletotrichum or Gloeosporium. These are considered one of the main pathogens, causing significant economic losses, such as in peppers and guarana. The current forms of control include the use of resistant cultivars, sanitary pruning and fungicides. However, even with the use of some methods of controlling these cultures, the crops are not free of anthracnose. Additionally, excessive application of fungicides increases the resistance of pathogens to agrochemicals and cause harm to human health and the environment. In order to find natural antifungal agents against guarana anthracnose, endophytic fungi were isolated from Amazon guarana. The compounds piliformic acid and cytochalasin D were isolated by chromatographic techniques from two Xylaria spp., guided by assays with Colletotrichum gloeosporioides. The isolated compounds were identified by spectrometric techniques, as NMR and mass spectrometry. This is the first report that piliformic acid and cytochalasin D have antifungal activity against C. gloeosporioides with MIC 2.92 and 2.46 μmol mL−1 respectively. Captan and difenoconazole were included as positive controls (MIC 16.63 and 0.02 μmol mL−1, respectively). Thus, Xylaria species presented a biotechnological potential and production of different active compounds which might be promising against anthracnose disease.
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Affiliation(s)
- Luciana M Elias
- Universidade de São Paulo, Escola Superior de Agricultura "Luiz de Queiroz", Departamento de Ciências Exatas, Piracicaba, SP, Brazil
| | - Diana Fortkamp
- Universidade de São Paulo, Escola Superior de Agricultura "Luiz de Queiroz", Departamento de Ciências Exatas, Piracicaba, SP, Brazil
| | - Sérgio B Sartori
- Universidade de São Paulo, Escola Superior de Agricultura "Luiz de Queiroz", Departamento de Ciências Exatas, Piracicaba, SP, Brazil
| | - Marília C Ferreira
- Universidade de São Paulo, Escola Superior de Agricultura "Luiz de Queiroz", Departamento de Ciências Exatas, Piracicaba, SP, Brazil
| | - Luiz H Gomes
- Universidade de São Paulo, Escola Superior de Agricultura "Luiz de Queiroz", Departamento de Ciências Exatas, Piracicaba, SP, Brazil
| | - João L Azevedo
- Universidade de São Paulo, Escola Superior de Agricultura "Luiz de Queiroz", Departamento de Genética, Piracicaba, SP, Brazil
| | - Quimi V Montoya
- Universidade Estadual Paulista "Júlio de Mesquita Filho", Instituto de Biociências, Departamento de Bioquímica e Microbiologia, Rio Claro, SP, Brazil
| | - André Rodrigues
- Universidade Estadual Paulista "Júlio de Mesquita Filho", Instituto de Biociências, Departamento de Bioquímica e Microbiologia, Rio Claro, SP, Brazil
| | - Antonio G Ferreira
- Universidade Federal de São Carlos, Departamento de Química, São Carlos, SP, Brazil
| | - Simone P Lira
- Universidade de São Paulo, Escola Superior de Agricultura "Luiz de Queiroz", Departamento de Ciências Exatas, Piracicaba, SP, Brazil.
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42
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Two new secondary metabolites from a fungus of the genus Robillarda. J Antibiot (Tokyo) 2018; 71:432-437. [DOI: 10.1038/s41429-017-0015-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 11/08/2017] [Accepted: 11/17/2017] [Indexed: 11/09/2022]
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43
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Guo C, Wu P, Xue J, Li H, Wei X. Xylaropyrones B and C, new γ-pyrones from the endophytic fungus Xylaria sp. SC1440. Nat Prod Res 2017; 32:1525-1531. [PMID: 29022356 DOI: 10.1080/14786419.2017.1385013] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Two new γ-pyrones, xylaropyrones B (1) and C (2), together with three known compounds, xylaropyrone (3), annularin A (4) and annularin C (5), were isolated from solid cultures of the endophytic fungus Xylaria sp. SC1440. The structures of these compounds were determined mainly by analysis of their NMR spectroscopic data. The relative configurations of 1 and 2 were assigned on the basis of J-based configurational analysis, and the absolute configurations were established by experimental and TDDFT calculated ECD spectra. The isolated compounds were evaluated for cytotoxic and tyrosinase inhibitory activity.
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Affiliation(s)
- Chenjia Guo
- a Key Laboratory of Plant Resources Conservation and Sustainable Utilization and Guangdong Provincial Key Laboratory of Applied Botany , Chinese Academy of Sciences , Guangzhou , People's Republic of China
| | - Ping Wu
- a Key Laboratory of Plant Resources Conservation and Sustainable Utilization and Guangdong Provincial Key Laboratory of Applied Botany , Chinese Academy of Sciences , Guangzhou , People's Republic of China
| | - Jinghua Xue
- a Key Laboratory of Plant Resources Conservation and Sustainable Utilization and Guangdong Provincial Key Laboratory of Applied Botany , Chinese Academy of Sciences , Guangzhou , People's Republic of China
| | - Hanxiang Li
- a Key Laboratory of Plant Resources Conservation and Sustainable Utilization and Guangdong Provincial Key Laboratory of Applied Botany , Chinese Academy of Sciences , Guangzhou , People's Republic of China
| | - Xiaoyi Wei
- a Key Laboratory of Plant Resources Conservation and Sustainable Utilization and Guangdong Provincial Key Laboratory of Applied Botany , Chinese Academy of Sciences , Guangzhou , People's Republic of China
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44
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Li W, Yang XQ, Yang YB, Zhao LX, Zhou QY, Zhang ZX, Zhou H, Hu M, Ruan BH, Ding ZT. A Novel Steroid Derivative and a New Steroidal Saponin from Endophytic Fungus Xylaria sp. Nat Prod Commun 2017. [DOI: 10.1177/1934578x1701200617] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Two new steroids, (24 R)-22, 23-dihydroxy-ergosta-4,6,8(14)-trien-3-one 23-β-D-glucopyranoside (1), and xylarester (2), together with 16 known compounds were isolated from the extract of endophytic Xylaria sp. solid culture. Their structures were elucidated by spectroscopic methods. Compound 2 has an unprecedent ergosta skeleton with a six-membered lactonic group in A ring. The X-ray single crystal diffraction data of 4,7-dihydroxy-13-tetradeca-2,5,8-trienolide (4) were also reported for the first time. The antibacterial, anti-acetylcholinesterase, nitric oxide inhibition and cytotoxic activities of 1–3 were investigated. Compound 1 showed cytotoxicity to MCF-7 with the ratio of inhibition at 72 % for a concentration at 40 μM.
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Affiliation(s)
- Wei Li
- School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, P. R. China
| | - Xue-Qiong Yang
- School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Ya-Bin Yang
- School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Li-Xing Zhao
- Yunnan Institute of Microbiology, Yunnan University, Kunming 650091, P. R. China
| | - Qing-Yan Zhou
- School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Zhuo-Xi Zhang
- School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Hao Zhou
- School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Ming Hu
- School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Bao-Hui Ruan
- School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Zhong-Tao Ding
- School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
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Fierro-Cruz JE, Jiménez P, Coy-Barrera E. Fungal endophytes isolated from Protium heptaphyllum and Trattinnickia rhoifolia as antagonists of Fusarium oxysporum. Rev Argent Microbiol 2017; 49:255-263. [PMID: 28495036 DOI: 10.1016/j.ram.2016.12.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Revised: 08/04/2016] [Accepted: 12/28/2016] [Indexed: 01/25/2023] Open
Abstract
Control of fungal pathogens is mainly addressed by the use of chemically synthesized fungicides which result in environmental pollution, developing resistance after prolonged use. In this context, endophytes have been recognized as potential biocontrollers, and also as a promising source of antifungal metabolites. Therefore, as part of our research on phytopathogen controllers, 355 fungal endophytes were isolated from Protium heptaphyllum and Trattinnickia rhoifolia (Burseraceae), both ethnobotanically important tree species that produce secondary metabolites of agronomic and industrial interest. Endophytes were tested by in vitro dual culture against Fusarium oxysporum, a phytopathogen of agronomic importance. Five endophytes exerted at least 40% inhibition on F. oxysporum growth. Ethyl acetate (EtOAc) extracts were obtained from the most active antagonistic fungi, after growing them in three different liquid media. The extracts were tested against a conidial suspension of F. oxysporum by direct bioautography. Two extracts derived from fungi identified as Chaetomium globosum, F211_UMNG and Meyerozima sp. F281_UMNG showed inhibition of pathogen growth. Isolate C. globosum, F211_UMNG was selected for a chemical analysis by RP-HPLC-DAD-ESI-MS and antifungal molecules such as cladosporin, chaetoatrosin A and chaetoviridin A were annotated and identified based on their MS data.
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Affiliation(s)
- Juan E Fierro-Cruz
- Universidad Militar Nueva Granada, Km 2 Cajicá - Zipaquirá, Cajicá, Colombia
| | - Pedro Jiménez
- Universidad Militar Nueva Granada, Km 2 Cajicá - Zipaquirá, Cajicá, Colombia
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Somboon P, Poonsawad A, Wattanachaisaereekul S, Jensen LT, Niimi M, Cheevadhanarak S, Soontorngun N. Fungicide Xylaria sp. BCC 1067 extract induces reactive oxygen species and activates multidrug resistance system in Saccharomyces cerevisiae. Future Microbiol 2017; 12:417-440. [PMID: 28361556 DOI: 10.2217/fmb-2016-0151] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
AIM To investigate antifungal potential of Xylaria sp. BIOTEC culture collection (BCC) 1067 extract against the model yeast Saccharomyces cerevisiae. MATERIALS & METHODS Antifungal property of extract, reactive oxygen species levels and cell survival were determined, using selected deletion strains. RESULTS Extract showed promising antifungal effect with minimal inhibitory concentration100 and minimal fungicidal concentration of 500 and 1000 mg/l, respectively. Strong synergy was observed with fractional inhibitory concentration index value of 0.185 for the combination of 60.0 and 0.5 mg/l of extract and ketoconazole, respectively. Extract-induced intracellular reactive oxygen species levels in some oxidant-prone strains and mediated plasma membrane rupture. Antioxidant regulator Yap1, efflux transporter Pdr5 and ascorbate were pivotal to protect S. cerevisiae from extract cytotoxicity. CONCLUSION Xylaria sp. BCC 1067 extract is a potentially valuable source of novel antifungals.
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Affiliation(s)
- Pichayada Somboon
- Division of Biochemical Technology, School of Bioresources & Technology, King Mongkut's University of Technology Thonburi, Bangkok, Thailand
| | - Attaporn Poonsawad
- Division of Biochemical Technology, School of Bioresources & Technology, King Mongkut's University of Technology Thonburi, Bangkok, Thailand
| | - Songsak Wattanachaisaereekul
- Pilot Plant & Development Training Institute (PDTI), King Mongkut's University of Technology Thonburi, Bangkok, Thailand
| | - Laran T Jensen
- Department of Biochemistry, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Masakazu Niimi
- Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Supapon Cheevadhanarak
- Division of Biochemical Technology, School of Bioresources & Technology, King Mongkut's University of Technology Thonburi, Bangkok, Thailand.,Pilot Plant & Development Training Institute (PDTI), King Mongkut's University of Technology Thonburi, Bangkok, Thailand
| | - Nitnipa Soontorngun
- Division of Biochemical Technology, School of Bioresources & Technology, King Mongkut's University of Technology Thonburi, Bangkok, Thailand
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47
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Macías-Rubalcava ML, Sánchez-Fernández RE. Secondary metabolites of endophytic Xylaria species with potential applications in medicine and agriculture. World J Microbiol Biotechnol 2016; 33:15. [PMID: 27896581 DOI: 10.1007/s11274-016-2174-5] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Accepted: 11/06/2016] [Indexed: 12/19/2022]
Abstract
Fungal endophytes are important sources of bioactive secondary metabolites. The genus Xylaria Hill (ex Schrank, 1789, Xylariaceae) comprises various endophytic species associated to both vascular and non vascular plants. The secondary metabolites produced by Xylaria species include a variety of volatile and non-volatile compounds. Examples of the former are sesquiterpenoids, esters, and alcohols, among others; and of the latter we find terpenoids, cytochalasins, mellein, alkaloids, polyketides, and aromatic compounds. Some of these metabolites have shown potential activity as herbicides, fungicides, and insecticides; others possess antibacterial, antimalarial, and antifungal activities, or α-glucosidase inhibitory activity. Thus metabolites from Xylaria are promising compounds for applications in agriculture for plague control as biopesticides, and biocontrol agents; and in medicine, for example as drugs for the treatment of infectious and non-infectious diseases. This review seeks to show the great value of the secondary metabolites of Xylaria, particularly in the agriculture and medicine fields.
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Affiliation(s)
- Martha Lydia Macías-Rubalcava
- Instituto de Química, Departamento de Productos Naturales, Universidad Nacional Autónoma de México (UNAM), Ciudad Universitaria, 4510, Delegación Coyoacán, Mexico, Mexico.
| | - Rosa Elvira Sánchez-Fernández
- Instituto de Química, Departamento de Productos Naturales, Universidad Nacional Autónoma de México (UNAM), Ciudad Universitaria, 4510, Delegación Coyoacán, Mexico, Mexico
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48
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McCloskey S, Noppawan S, Mongkolthanaruk W, Suwannasai N, Senawong T, Prawat U. A new cerebroside and the cytotoxic constituents isolated from Xylaria allantoidea SWUF76. Nat Prod Res 2016; 31:1422-1430. [DOI: 10.1080/14786419.2016.1258559] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Sirirath McCloskey
- Natural Products Research Unit, Faculty of Science, Department of Chemistry, Khon Kaen University, Centre of Excellence for Innovation in Chemistry (PERCH-CIC), Khon Kaen, Thailand
| | - Somchai Noppawan
- Natural Products Research Unit, Faculty of Science, Department of Chemistry, Khon Kaen University, Centre of Excellence for Innovation in Chemistry (PERCH-CIC), Khon Kaen, Thailand
| | - Wiyada Mongkolthanaruk
- Faculty of Science, Department of Microbiology, Khon Kaen University, Khon Kaen, Thailand
| | - Nuttika Suwannasai
- Faculty of Science, Department of Biology, Srinakharinwirot University, Bangkok, Thailand
| | - Thanaset Senawong
- Faculty of Science, Department of Biochemistry, Khon Kaen University, Khon Kaen, Thailand
| | - Uma Prawat
- Faculty of Science and Technology, Department of Chemistry, Phuket Rajabhat University, Phuket, Thailand
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49
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Guo H, Kreuzenbeck NB, Otani S, Garcia-Altares M, Dahse HM, Weigel C, Aanen DK, Hertweck C, Poulsen M, Beemelmanns C. Pseudoxylallemycins A-F, Cyclic Tetrapeptides with Rare Allenyl Modifications Isolated from Pseudoxylaria sp. X802: A Competitor of Fungus-Growing Termite Cultivars. Org Lett 2016; 18:3338-41. [PMID: 27341414 DOI: 10.1021/acs.orglett.6b01437] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Based on fungus-fungus pairing assays and HRMS-based dereplication strategy, six new cyclic tetrapeptides, pseudoxylallemycins A-F (1-6), were isolated from the termite-associated fungus Pseudoxylaria sp. X802. Structures were characterized using NMR spectroscopy, HRMS, and Marfey's reaction. Pseudoxylallemycins B-D (2-4) possess a rare and chemically accessible allene moiety amenable for synthetic modifications, and derivatives A-D showed antimicrobial activity against Gram-negative human-pathogenic Pseudomonas aeruginosa and antiproliferative activity against human umbilical vein endothelial cells and K-562 cell lines.
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Affiliation(s)
- Huijuan Guo
- Leibniz Institute for Natural Product Research and Infection Biology, Hans Knöll Institute , Beutenbergstraße 11a, 07745 Jena, Germany
| | - Nina B Kreuzenbeck
- Leibniz Institute for Natural Product Research and Infection Biology, Hans Knöll Institute , Beutenbergstraße 11a, 07745 Jena, Germany
| | - Saria Otani
- Department of Biology, Section for Ecology and Evolution, Centre for Social Evolution, University of Copenhagen , 2100 Copenhagen East, Denmark
| | - Maria Garcia-Altares
- Leibniz Institute for Natural Product Research and Infection Biology, Hans Knöll Institute , Beutenbergstraße 11a, 07745 Jena, Germany
| | - Hans-Martin Dahse
- Leibniz Institute for Natural Product Research and Infection Biology, Hans Knöll Institute , Beutenbergstraße 11a, 07745 Jena, Germany
| | - Christiane Weigel
- Leibniz Institute for Natural Product Research and Infection Biology, Hans Knöll Institute , Beutenbergstraße 11a, 07745 Jena, Germany
| | - Duur K Aanen
- Laboratory of Genetics, Wageningen University , P.O. Box 309, 6700 AH Wageningen, The Netherlands
| | - Christian Hertweck
- Leibniz Institute for Natural Product Research and Infection Biology, Hans Knöll Institute , Beutenbergstraße 11a, 07745 Jena, Germany
| | - Michael Poulsen
- Department of Biology, Section for Ecology and Evolution, Centre for Social Evolution, University of Copenhagen , 2100 Copenhagen East, Denmark
| | - Christine Beemelmanns
- Leibniz Institute for Natural Product Research and Infection Biology, Hans Knöll Institute , Beutenbergstraße 11a, 07745 Jena, Germany
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50
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García-Méndez MC, Macías-Ruvalcaba NA, Lappe-Oliveras P, Hernández-Ortega S, Macías-Rubalcava ML. Phytotoxic Potential of Secondary Metabolites and Semisynthetic Compounds from Endophytic Fungus Xylaria feejeensis Strain SM3e-1b Isolated from Sapium macrocarpum. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:4255-4263. [PMID: 27159617 DOI: 10.1021/acs.jafc.6b01111] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Bioactivity-directed fractionation of the combined culture medium and mycelium extract of the endophytic fungus Xylaria feejeensis strain SM3e-1b, isolated from Sapium macrocarpum, led to the isolation of three known natural products: (4S,5S,6S)-4-hydroxy-3-methoxy-5-methyl-5,6-epoxycyclohex-2-enone or coriloxine, 1; 2-hydroxy-5-methoxy-3-methylcyclohexa-2,5-diene-1,4-dione, 2; and 2,6-dihydroxy-5-methoxy-3-methylcyclohexa-2,5-diene-1,4-dione or fumiquinone B, 3. This is the first report of compound 3 being isolated from this species. Additionally, four new derivatives of coriloxine were prepared: (4R,5S,6R)-6-chloro-4,5-dihydroxy-3-methoxy-5-methylcyclohex-2-enone, 4; 6-hydroxy-5-methyl-3-(methylamino)cyclohexa-2,5- diene-1,4-dione, 5; (4R,5R,6R)-4,5-dihydroxy-3-methoxy-5-methyl-6-(phenylamino)cyclohex-2-enone, 6; and 2-((4-butylphenyl)amino)-5-methoxy-3-methylcyclohexa-2,5-diene-1,4-dione, 7. X-ray analysis allowed us to unambiguously determine the structures and absolute configuration of semisynthetic derivatives 4, 5, and 6. The phytotoxic activity of the three isolated natural products and the coriloxine derivatives is reported. Germination of the seed, root growth, and oxygen uptake of the seedlings of Trifolium pratense, Medicago sativa, Panicum miliaceum, and Amaranthus hypochondriacus were significantly inhibited by all of the tested compounds. In general, they were more effective inhibiting root elongation than suppressing the germination and seedling oxygen uptake processes as shown by their IC50 values.
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Affiliation(s)
| | - Norma A Macías-Ruvalcaba
- Facultad de Quı́mica, Departamento de Fisicoquı́mica, Universidad Nacional Autónoma de México (UNAM), Ciudad Universitaria , Coyoacán, México, D.F. 04510, México
| | - Patricia Lappe-Oliveras
- Instituto de Biologı́a, Departamento de Botánica, Universidad Nacional Autónoma de México (UNAM), Ciudad Universitaria , Coyoacán, México, D.F. 04510, México
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