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Xu ZL, Li BC, Huang LL, Lv LX, Luo Y, Xu WF, Yang RY. Two new cytochalasins from the endophytic fungus Xylaria sp. GDGJ-77B. Nat Prod Res 2024; 38:1503-1509. [PMID: 36469678 DOI: 10.1080/14786419.2022.2153362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 11/17/2022] [Accepted: 11/26/2022] [Indexed: 12/12/2022]
Abstract
Two new open-chain cytochalasins, xylarchalasins A and B (1 and 2), together with six known analogues (3-8), were isolated from the endophytic fungus Xylaria sp. GDGJ-77B from the Chinese medicinal plant Sophora tonkinensis. Their structures were elucidated on the basis of comprehensive spectroscopic analysis. Compound 2 displayed moderate antibacterial activities against Bacillus subtilis and Escherichia coli with MIC values of 25 and 12.5 μg/mL, respectively.
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Affiliation(s)
- Zhao-Long Xu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Collaborative Innovation Center for Guangxi Ethnic Medicine, Guangxi Normal University, Guilin, P. R. China
- Guangxi Research Institute of Chemical Industry Co., Ltd., Nanning, P. R. China
| | - Ben-Chao Li
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Collaborative Innovation Center for Guangxi Ethnic Medicine, Guangxi Normal University, Guilin, P. R. China
| | - Li-Li Huang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Collaborative Innovation Center for Guangxi Ethnic Medicine, Guangxi Normal University, Guilin, P. R. China
| | - Liu-Xia Lv
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Collaborative Innovation Center for Guangxi Ethnic Medicine, Guangxi Normal University, Guilin, P. R. China
| | - Yan Luo
- Life Sciences Institute, Guangxi Medical University, Nanning, P. R. China
| | - Wei-Feng Xu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Collaborative Innovation Center for Guangxi Ethnic Medicine, Guangxi Normal University, Guilin, P. R. China
| | - Rui-Yun Yang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry and Pharmaceutical Sciences, Collaborative Innovation Center for Guangxi Ethnic Medicine, Guangxi Normal University, Guilin, P. R. China
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2
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Zhang Y, Jin Y, Yan W, Gu P, Zeng Z, Li Z, Zhang G, Wei M, Xue Y. New Pyranone Derivatives and Sesquiterpenoid Isolated from the Endophytic Fungus Xylaria sp. Z184. Molecules 2024; 29:1728. [PMID: 38675548 PMCID: PMC11051921 DOI: 10.3390/molecules29081728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 04/03/2024] [Accepted: 04/05/2024] [Indexed: 04/28/2024] Open
Abstract
The fungus Xylaria sp. Z184, harvested from the leaves of Fallopia convolvulus (L.) Á. Löve, has been isolated for the first time. Chemical investigation on the methanol extract of the culture broth of the titles strain led to the discovery of three new pyranone derivatives, called fallopiaxylaresters A-C (1-3), and a new bisabolane-type sesquiterpenoid, named fallopiaxylarol A (4), along with the first complete set of spectroscopic data for the previously reported pestalotiopyrone M (5). Known pyranone derivatives (6-11), sesquiterpenoids (12-14), isocoumarin derivatives (15-17), and an aromatic allenic ether (18) were also co-isolated in this study. All new structures were elucidated by the interpretation of HRESIMS, 1D, 2D NMR spectroscopy, and quantum chemical computation approach. The in vitro antimicrobial, anti-inflammatory, and α-glucosidase-inhibitory activities of the selected compounds and the crude extract were evaluated. The extract was shown to inhibit nitric oxide (NO) production induced by lipopolysaccharide (LPS) in murine RAW264.7 macrophage cells, with an inhibition rate of 77.28 ± 0.82% at a concentration of 50 μg/mL. The compounds 5, 7, and 8 displayed weak antibacterial activity against Staphylococcus areus subsp. aureus at a concentration of 100 μM.
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Affiliation(s)
- Yan Zhang
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China; (Y.Z.); (Y.J.); (W.Y.); (P.G.); (Z.Z.)
| | - Yang Jin
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China; (Y.Z.); (Y.J.); (W.Y.); (P.G.); (Z.Z.)
| | - Wensi Yan
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China; (Y.Z.); (Y.J.); (W.Y.); (P.G.); (Z.Z.)
| | - Peishan Gu
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China; (Y.Z.); (Y.J.); (W.Y.); (P.G.); (Z.Z.)
| | - Ziqian Zeng
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China; (Y.Z.); (Y.J.); (W.Y.); (P.G.); (Z.Z.)
| | - Ziying Li
- School of Pharmacy, Binzhou Medical University, Yantai 264003, China; (Z.L.); (G.Z.)
| | - Guangtao Zhang
- School of Pharmacy, Binzhou Medical University, Yantai 264003, China; (Z.L.); (G.Z.)
| | - Mi Wei
- School of Agriculture, Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China;
| | - Yongbo Xue
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China; (Y.Z.); (Y.J.); (W.Y.); (P.G.); (Z.Z.)
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3
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Poma-Angamarca RA, Rojas JR, Sánchez-Rodríguez A, Ruiz-González MX. Diversity of Leaf Fungal Endophytes from Two Coffea arabica Varieties and Antagonism towards Coffee Leaf Rust. Plants (Basel) 2024; 13:814. [PMID: 38592839 DOI: 10.3390/plants13060814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 02/29/2024] [Accepted: 03/06/2024] [Indexed: 04/11/2024]
Abstract
Coffee has immense value as a worldwide-appreciated commodity. However, its production faces the effects of climate change and the spread of severe diseases such as coffee leaf rust (CLR). The exploration of fungal endophytes associated with Coffea sp. has already found the existence of nearly 600 fungal species, but their role in the plants remains practically unknown. We have researched the diversity of leaf fungal endophytes in two Coffea arabica varieties: one susceptible and one resistant to CLR. Then, we conducted cross-infection essays with four common endophyte species (three Colletotrichum sp. and Xylaria sp. 1) and Hemileia vastatrix (CLR) in leaf discs, to investigate the interaction of the endophytes on CLR colonisation success and severity of infection. Two Colletotrichum sp., when inoculated 72 h before H. vastatrix, prevented the colonisation of the leaf disc by the latter. Moreover, the presence of endophytes prior to the arrival of H. vastatrix ameliorated the severity of CLR. Our work highlights both the importance of characterising the hidden biodiversity of endophytes and investigating their potential roles in the plant-endophyte interaction.
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Affiliation(s)
- Ruth A Poma-Angamarca
- Departamento de Ciencias Biológicas y Agropecuarias, Universidad Técnica Particular de Loja, San Cayetano Alto s/n, Loja 1101608, Ecuador
| | - Jacqueline R Rojas
- Departamento de Ciencias Biológicas y Agropecuarias, Universidad Técnica Particular de Loja, San Cayetano Alto s/n, Loja 1101608, Ecuador
| | - Aminael Sánchez-Rodríguez
- Departamento de Ciencias Biológicas y Agropecuarias, Universidad Técnica Particular de Loja, San Cayetano Alto s/n, Loja 1101608, Ecuador
| | - Mario X Ruiz-González
- Departamento de Ciencias Biológicas y Agropecuarias, Universidad Técnica Particular de Loja, San Cayetano Alto s/n, Loja 1101608, Ecuador
- SENESCYT is the Secretaría de Educación Superior, Ciencia, Tecnología e Innovación from the Government of Ecuador, Proyecto Prometeo SENESCYT, Universidad Técnica Particular de Loja, San Cayetano Alto s/n, Loja 1101608, Ecuador
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Marinho AMDR, de Oliveira CMSC, Silva-Silva JV, de Jesus SCA, Siqueira JES, de Oliveira LC, Auzier JF, Soares LN, Pinheiro MLB, Silva SC, Medeiros LS, Costa EV, Marinho PSB. Antimicrobial Activity and Molecular Docking Studies of the Biotransformation of Diterpene Acanthoic Acid Using the Fungus Xylaria sp. Antibiotics (Basel) 2023; 12:1331. [PMID: 37627751 PMCID: PMC10451833 DOI: 10.3390/antibiotics12081331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 08/04/2023] [Accepted: 08/11/2023] [Indexed: 08/27/2023] Open
Abstract
Biotransformations are reactions mediated by microorganisms, such as fungi. These bioreactions have high chemo- and stereoselectivity on organic substrates and can be applied in the search for new bioactive compounds. In this study, acanthoic acid (AA) was biotransformed using the fungus Xylaria sp., giving the novel compound 3β,7β-dihydroxyacanthoic acid (S1). Both the AA and the product S1 were tested against Gram-positive and Gram-negative bacteria. To identify and validate possible biological targets as enzymes or proteins involved in the activity observed in vitro, we used the molecular docking method. Hydroxylation at the C-3 and C-7 positions of the biotransformation product enhanced its activity against Escherichia coli as well as its binding affinity and interactions with superoxide dismutase 1 (SOD1; PDB ID 4A7G). Based on our results, the SOD1 enzyme was suggested to be a possible target for the antioxidant activity of product S1.
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Affiliation(s)
- Andrey Moacir do Rosario Marinho
- Post-Graduation in Chemistry, Federal University of Pará, Belém 66075-110, PA, Brazil; (S.C.A.d.J.); (J.E.S.S.); (L.C.d.O.); (P.S.B.M.)
| | - Claudia Maria S. C. de Oliveira
- Post-Graduation in Chemistry, Federal University of South and Southeast of Pará, Marabá 68507-590, PA, Brazil; (C.M.S.C.d.O.); (S.C.S.)
| | - João Victor Silva-Silva
- Laboratory of Medicinal and Computational Chemistry, Institute of Physics of São Carlos, University of São Paulo, São Carlos 13418-900, SP, Brazil
| | - Samara C. Anchieta de Jesus
- Post-Graduation in Chemistry, Federal University of Pará, Belém 66075-110, PA, Brazil; (S.C.A.d.J.); (J.E.S.S.); (L.C.d.O.); (P.S.B.M.)
| | - José Edson S. Siqueira
- Post-Graduation in Chemistry, Federal University of Pará, Belém 66075-110, PA, Brazil; (S.C.A.d.J.); (J.E.S.S.); (L.C.d.O.); (P.S.B.M.)
| | - Luana C. de Oliveira
- Post-Graduation in Chemistry, Federal University of Pará, Belém 66075-110, PA, Brazil; (S.C.A.d.J.); (J.E.S.S.); (L.C.d.O.); (P.S.B.M.)
| | - Jéssica Fernandes Auzier
- Post-Graduation in Chemistry, Federal University of Amazonas, Manaus 69077-000, AM, Brazil; (J.F.A.); (L.N.S.); (M.L.B.P.); (E.V.C.)
| | - Liviane N. Soares
- Post-Graduation in Chemistry, Federal University of Amazonas, Manaus 69077-000, AM, Brazil; (J.F.A.); (L.N.S.); (M.L.B.P.); (E.V.C.)
| | - Maria Lúcia Belém Pinheiro
- Post-Graduation in Chemistry, Federal University of Amazonas, Manaus 69077-000, AM, Brazil; (J.F.A.); (L.N.S.); (M.L.B.P.); (E.V.C.)
| | - Sebastião C. Silva
- Post-Graduation in Chemistry, Federal University of South and Southeast of Pará, Marabá 68507-590, PA, Brazil; (C.M.S.C.d.O.); (S.C.S.)
| | - Lívia S. Medeiros
- Post-Graduation in Chemistry, Federal University of São Paulo, Diadema 09920-000, SP, Brazil;
| | - Emmanoel V. Costa
- Post-Graduation in Chemistry, Federal University of Amazonas, Manaus 69077-000, AM, Brazil; (J.F.A.); (L.N.S.); (M.L.B.P.); (E.V.C.)
| | - Patrícia S. Barbosa Marinho
- Post-Graduation in Chemistry, Federal University of Pará, Belém 66075-110, PA, Brazil; (S.C.A.d.J.); (J.E.S.S.); (L.C.d.O.); (P.S.B.M.)
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Ricaño-Rodríguez J, Ricaño-Rodríguez C, Luis-Yong D, Guzmán-López O. [First evidence of nitrilase enzymatic activity of Xylaria sp. and its relationship with the biosynthesis of indole-3-acetic acid]. Rev Argent Microbiol 2023; 55:214-225. [PMID: 37024343 DOI: 10.1016/j.ram.2023.01.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Revised: 11/04/2022] [Accepted: 01/24/2023] [Indexed: 04/07/2023] Open
Abstract
Endophytic fungi inhabit plant tissues internally and asymptomatically, and many of them are involved in the synthesis of bioactive metabolites of antifungal and therapeutic nature, as well as other compounds of biotechnological importance including indole derivatives, among many others. Ecologically, they provide some benefits to plants including protection against phytopathogens and promotion of root growth. In this sense, Xylaria sp. is a cellulose-decomposing fungus with biotechnological potential. It is worth mentioning that indole-3-acetic acid (IAA) also plays an extremely important role in plant-micro-organism interactions, as it is essential for physiology and proper plant morphological development. It is known that nitrile-hydrolytic enzymes (nitrilases) are involved in the synthesis of plant indole compounds; however, relatively little information is available concerning the nature of these enzymes in the fungal kingdom. In view of the above, through a biochemical and molecular-genetic approach, it has been demonstrated for the first time that Xylaria sp. carries out nitrile-hydrolytic enzyme activity using nitrogen and carbon-rich compounds as substrate. The studied strain increased its relative gene expression levels and showed mycelial growth, both in the presence of chemical compounds such as cyanobenzene and KCN. Thus, the results of this work suggest that the micro-organism is capable of degrading complex nitrogenous molecules. On the other hand, through fungal biofertilization, it was observed that Xylaria sp. promotes the development of the root system of Arabidopsis thaliana seedlings, in addition to synthesizing IAA.
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Affiliation(s)
- Jorge Ricaño-Rodríguez
- Centro de EcoAlfabetización y Diálogo de Saberes, Universidad Veracruzana, Campus USBI, Xalapa, Veracruz, México; Centro de Investigación en Micología Aplicada, Universidad Veracruzana, Xalapa, Veracruz, México.
| | - Celeste Ricaño-Rodríguez
- Centro de Investigación en Micología Aplicada, Universidad Veracruzana, Xalapa, Veracruz, México
| | - Daniela Luis-Yong
- Centro de Investigación en Micología Aplicada, Universidad Veracruzana, Xalapa, Veracruz, México
| | - Oswaldo Guzmán-López
- Facultad de Ciencias Químicas, Universidad Veracruzana, Coatzacoalcos, Veracruz, México
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Gan D, Li C, Shu Y, Wang J, Wang C, Zhu L, Yang Y, Liu J, He B, Cai L, Ding Z. Steroids and dihydroisocoumarin glycosides from Xylaria sp. by the one strain many compounds strategy and their bioactivities. Chin J Nat Med 2023; 21:154-160. [PMID: 36871983 DOI: 10.1016/s1875-5364(23)60394-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Indexed: 03/07/2023]
Abstract
The fungus Xylaria sp. KYJ-15 was isolated from Illigera celebica. Based on the one strain many compounds (OSMAC) strategy, the strain was fermented on potato and rice solid media, respectively. As a result, two novel steroids, xylarsteroids A (1) and B (2), which are the first examples of C28-steroid with an unusual β- and γ-lactone ring, respectively, along with two new dihydroisocoumarin glycosides, xylarglycosides A (3) and B (4), were identified. Their structures were elucidated by spectroscopic methods, X-ray diffraction and electronic circular dichroism (ECD) experiments. All isolated compounds were evaluated for cytotoxicity, DPPH radical scavenging activity, acetylcholinesterase inhibitory and antimicrobial effect. Compound 1 exhibited potent AChE inhibitory activity with an IC50 value of 2.61 ± 0.05 μmol·L-1. The β-lactone ring unit of 1 is critical for its AChE inhibitory activity. The finding was further confirmed through exploring the interaction of 1 with AChE by molecular docking. In addition, both compounds 1 and 2 exhibited obvious antibacterial activity against Bacillus subtilis with a minimum inhibitory concentration (MIC) of 2 μg·mL-1. Compounds 3 and 4 exhibited antibacterial activities against Staphylococcus aureus with MICs of 4 and 2 μg·mL-1, respectively, which also exhibited DPPH radical scavenging activity comparable to the positive control with IC50 values of 9.2 ± 0.03 and 13.3 ± 0.01 μmol·L-1, respectively.
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Affiliation(s)
- Dong Gan
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - Chenzhe Li
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - Yan Shu
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - Jiapeng Wang
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - Chengyao Wang
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - Li Zhu
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - Yujun Yang
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - Jiaqi Liu
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - Bijian He
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - Le Cai
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China.
| | - Zhongtao Ding
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, China; College of Pharmacy, Dali University, Dali 671003, China.
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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8
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Yin GP, Li YJ, Li B, Liu XM, Zhu JJ, Wang ZM, Hu CH. [Secondary metabolites of endophyte fungi Xylaria sp. from Coptis chinensis]. Zhongguo Zhong Yao Za Zhi 2022; 47:2165-2169. [PMID: 35531732 DOI: 10.19540/j.cnki.cjcmm.20220207.201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Two new polyketides, lasobutone A(1) and lasobutone B(2), along with three known compounds, guignardianone C(3), guignardic acid(4), and 4-hydroxy-17R-methylincisterol(5), were isolated from the endophytic fungi Xylaria sp. by silica gel, MCI, and preparative HPLC, which was separated from the Chinese medicinal material Coptis chinensis and cultivated through solid fermentation with rice. Their structures were elucidated on the basis of spectroscopic methods, such as MS, NMR, IR, UV, and ECD. Compounds 2 and 4 showed inhibitory activities against the nitric oxide(NO) production in the LPS-induced macrophage RAW264.7 with IC_(50) values of 58.7 and 42.5 μmol·L~(-1) respectively, while compound 5 exhibited cytotoxic activities against HT-29 with IC_(50) value of 14.3 μmol·L~(-1).
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Affiliation(s)
- Guo-Ping Yin
- Engineering Research Center of Coptis Development and Utilization (Ministry of Education), College of Pharmaceutical Sciences, Southwest University Chongqing 400716, China
| | - Ya-Juan Li
- Engineering Research Center of Coptis Development and Utilization (Ministry of Education), College of Pharmaceutical Sciences, Southwest University Chongqing 400716, China
| | - Bo Li
- Engineering Research Center of Coptis Development and Utilization (Ministry of Education), College of Pharmaceutical Sciences, Southwest University Chongqing 400716, China
| | - Xue-Mei Liu
- Engineering Research Center of Coptis Development and Utilization (Ministry of Education), College of Pharmaceutical Sciences, Southwest University Chongqing 400716, China
| | - Jing-Jing Zhu
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences Beijing 100700, China
| | - Zhi-Min Wang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences Beijing 100700, China
| | - Chang-Hua Hu
- Engineering Research Center of Coptis Development and Utilization (Ministry of Education), College of Pharmaceutical Sciences, Southwest University Chongqing 400716, 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] [What about the content of this article? (0)] [Affiliation(s)] [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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10
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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. Nat Prod Bioprospect 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] [What about the content of this article? (0)] [Affiliation(s)] [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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11
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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. J Asian Nat Prod Res 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] [What about the content of this article? (0)] [Affiliation(s)] [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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12
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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. J Agric Food Chem 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] [What about the content of this article? (0)] [Affiliation(s)] [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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13
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Li F, Di L, Liu Y, Xiao Q, Zhang X, Ma F, Yu H. Carbaryl biodegradation by Xylaria sp. BNL1 and its metabolic pathway. Ecotoxicol Environ Saf 2019; 167:331-337. [PMID: 30359899 DOI: 10.1016/j.ecoenv.2018.10.051] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 10/10/2018] [Accepted: 10/12/2018] [Indexed: 06/08/2023]
Abstract
Although ascomycetes occupy a vaster niche in soil than the well-studied basidiomycetes, they have received limited attention in studies related to bioremediation. In this study, the degradation of carbaryl by Xylaria sp. was studied in different culture conditions and its possible metabolic pathway was elucidated. In liquid culture, 99% of the added carbaryl was eliminated when cytochrome P450 (CYP450) was active, which was similar to the degradation rate of Pleurotus ostreatus, a fungus with strong bioremediation ability. Mn2+ is beneficial to the degradation of carbaryl. Compared to the 72.17% degradation rate in sterile soil, 59.0% carbaryl was eliminated in non-sterile soil, which suggested that Xylaria sp. BNL1 can resist microorganismal infection. Furthermore, the intracellular fractions containing laccase, CYP450, and carbaryl esterase efficiently degraded carbaryl. The presence of carbaryl metabolites suggested that Xylaria sp. BNL1 initiated its attack on carbaryl via carbaryl esterase to release α-naphthol, which was further degraded to 1,4-naphthoquinone and benzoic acid by CYP450 and laccase. Thus, our study highlights the potential of using Xylaria sp. for bioremediation.
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Affiliation(s)
- Fei Li
- Key Laboratory of Molecular Biophysics of MOE, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Lin Di
- Key Laboratory of Molecular Biophysics of MOE, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Yuxin Liu
- Key Laboratory of Molecular Biophysics of MOE, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Qiuyun Xiao
- Key Laboratory of Molecular Biophysics of MOE, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Xiaoyu Zhang
- Key Laboratory of Molecular Biophysics of MOE, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Fuying Ma
- Key Laboratory of Molecular Biophysics of MOE, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China.
| | - Hongbo Yu
- Key Laboratory of Molecular Biophysics of MOE, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China.
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Chen R, Tang JW, Li XR, Liu M, Ding WP, Zhou YF, Wang WG, Du X, Sun HD, Puno PT. Secondary Metabolites from the Endophytic Fungus Xylaria sp. hg1009. Nat Prod Bioprospect 2018; 8:121-129. [PMID: 29556983 PMCID: PMC5913051 DOI: 10.1007/s13659-018-0158-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Accepted: 03/12/2018] [Indexed: 06/08/2023]
Abstract
A detailed chemical investigation of the secondary metabolites produced by the endophytic fungus Xylaria sp. isolated from the stems of Isodon sculponeatus afforded six new compounds, xylariahgins A-F (1-6), two new natural products (7 and 8), along with two known compounds (9 and 10) (Fig. 1). The structures of all compounds were unambiguously established by analyzing their spectroscopic data or referring to pertinent literature. Compounds 1-8 were tested for their cytotoxic activity against five human tumor cell lines.
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Affiliation(s)
- Rong Chen
- School of Chemical Science and Technology, Yunnan University, Kunming, 650091, People's Republic of China
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
| | - Jian-Wei Tang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
- University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Xing-Ren Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
| | - Miao Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
| | - Wen-Ping Ding
- School of Chemical Science and Technology, Yunnan University, Kunming, 650091, People's Republic of China
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
| | - Yuan-Fei Zhou
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
- University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Wei-Guang Wang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
| | - Xue Du
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
| | - Han-Dong Sun
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
| | - Pema-Tenzin Puno
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China.
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15
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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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16
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Wei H, Xu YM, Espinosa-Artiles P, Liu MX, Luo JG, U'Ren JM, Arnold AE, Gunatilaka AAL. Sesquiterpenes and other constituents of Xylaria sp. NC1214, a fungal endophyte of the moss Hypnum sp. Phytochemistry 2015; 118:102-8. [PMID: 26324074 PMCID: PMC4592834 DOI: 10.1016/j.phytochem.2015.08.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Revised: 08/11/2015] [Accepted: 08/17/2015] [Indexed: 05/16/2023]
Abstract
Oxygenated guaiane-type sesquiterpenes, xylaguaianols A-D (1-4), an iso-cadinane-type sesquiterpene isocadinanol A (5), and an α-pyrone 9-hydroxyxylarone (6), together with five known sesquiterpenes (7-11), and four known cytochalasins (12-15) were isolated from a culture broth of Xylaria sp. NC1214, a fungal endophyte of the moss Hypnum sp. The structures of all compounds were elucidated by the analysis of their spectroscopic data and relative configurations of 1-5 were determined with the help of NMR NOESY experiments. Cytochalasins C (12), D (13), and Q (14) were investigated for their cytotoxic activity against five tumor cell lines. Cytochalasin D showed significant cytotoxicity against all five cell lines, with IC50s ranging from 0.22 to 1.44 μM, whereas cytochalasins C and Q exhibited moderate, but selective cytotoxicity.
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Affiliation(s)
- Han Wei
- Southwest Center for Natural Products Research and Commercialization, School of Natural Resources and the Environment, College of Agriculture and Life Sciences, The University of Arizona, 250 E. Valencia Road, Tucson, AZ 85706, United States
| | - Ya-ming Xu
- Southwest Center for Natural Products Research and Commercialization, School of Natural Resources and the Environment, College of Agriculture and Life Sciences, The University of Arizona, 250 E. Valencia Road, Tucson, AZ 85706, United States
| | - Patricia Espinosa-Artiles
- Southwest Center for Natural Products Research and Commercialization, School of Natural Resources and the Environment, College of Agriculture and Life Sciences, The University of Arizona, 250 E. Valencia Road, Tucson, AZ 85706, United States
| | - Manping X Liu
- Southwest Center for Natural Products Research and Commercialization, School of Natural Resources and the Environment, College of Agriculture and Life Sciences, The University of Arizona, 250 E. Valencia Road, Tucson, AZ 85706, United States
| | - Jiang-Guang Luo
- Southwest Center for Natural Products Research and Commercialization, School of Natural Resources and the Environment, College of Agriculture and Life Sciences, The University of Arizona, 250 E. Valencia Road, Tucson, AZ 85706, United States; State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, PR China
| | - Jana M U'Ren
- School of Plant Sciences, College of Agriculture and Life Sciences, The University of Arizona, Tucson, AZ 85721, United States
| | - A Elizabeth Arnold
- School of Plant Sciences, College of Agriculture and Life Sciences, The University of Arizona, Tucson, AZ 85721, United States; Department of Ecology and Evolutionary Biology, The University of Arizona, Tucson, AZ 85721, United States
| | - A A Leslie Gunatilaka
- Southwest Center for Natural Products Research and Commercialization, School of Natural Resources and the Environment, College of Agriculture and Life Sciences, The University of Arizona, 250 E. Valencia Road, Tucson, AZ 85706, United States.
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17
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Zhang Q, Xiao J, Sun QQ, Qin JC, Pescitelli G, Gao JM. Characterization of cytochalasins from the endophytic Xylaria sp. and their biological functions. J Agric Food Chem 2014; 62:10962-9. [PMID: 25350301 DOI: 10.1021/jf503846z] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Bioassay-guided fractionation of the fermentation extract of Xylaria sp. XC-16, an endophyte from Toona sinensis led to the isolation of two new cytochalasans cytochalasin Z27, 1, and cytochalasin Z28, 2, along with three known compounds seco-cytochalasin E, 3, and cytochalasin Z18, 4, and cytochalasin E, 5. The structures of 1 and 2 were elucidated by spectroscopic and electronic circular dichroism methods. Compound 5 was shown to be potently cytotoxic against brine shrimp (LC50 = 2.79 μM), comparable to that of the positive agent toosendanin (LC50 = 4.03 μM), and also exhibited potential phytotoxic effects on Lactuca sativa and Raphanus sativus L. seedlings, which are higher than that of the positive control glyphosate. Additionally, the fungicidal effect of 2 against the phytopathogen Gibberella saubinetti was better than that of hymexazol. This is the first report of the three types of cytochalasins present in genus Xylaria. A structure-phytotoxicity activity relationship is also discussed.
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Affiliation(s)
- Qiang Zhang
- College of Science, Northwest A&F University , Yangling 712100, Shaanxi P. R. China
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Wu SH, He J, Li XN, Huang R, Song F, Chen YW, Miao CP. Guaiane sesquiterpenes and isopimarane diterpenes from an endophytic fungus Xylaria sp. Phytochemistry 2014; 105:197-204. [PMID: 24890390 DOI: 10.1016/j.phytochem.2014.04.016] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2013] [Revised: 01/03/2014] [Accepted: 04/17/2014] [Indexed: 06/03/2023]
Abstract
Nine oxygenated guaiane-type sesquiterpenes and three isopimarane diterpenes were isolated from the culture broth of an endophytic fungus, Xylaria sp. YM 311647, obtained from Azadirachta indica. The structures of these compounds were elucidated by interpretation of spectroscopic data. The absolute configurations of two of these were confirmed by X-ray crystallographic analysis. All of the compounds were tested for their antifungal activities against five pathogenic fungal cells. The results showed that nine sesquiterpenes were moderately active against Candida albicans and Hormodendrum compactum with MIC values ranging from 32 to 256μg/ml, while the diterpenes were more active; One of these exhibited the most potent inhibitory activity against C. albicans and Pyricularia oryzae with MIC values of 16μg/ml.
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Affiliation(s)
- Shao-Hua Wu
- Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan Institute of Microbiology, Yunnan University, Kunming 650091, People's Republic of China.
| | - Jian He
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, People's Republic of China.
| | - Xiao-Nian Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China
| | - Rong Huang
- School of Chemical Science and Technology, Yunnan University, Kunming 650091, People's Republic of China
| | - Fei Song
- Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan Institute of Microbiology, Yunnan University, Kunming 650091, People's Republic of China
| | - You-Wei Chen
- Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan Institute of Microbiology, Yunnan University, Kunming 650091, People's Republic of China
| | - Cui-Ping Miao
- Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan Institute of Microbiology, Yunnan University, Kunming 650091, People's Republic of China
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19
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Song Y, Wang J, Huang H, Ma L, Wang J, Gu Y, Liu L, Lin Y. Four eremophilane sesquiterpenes from the mangrove endophytic fungus Xylaria sp. BL321. Mar Drugs 2012; 10:340-348. [PMID: 22412805 PMCID: PMC3297001 DOI: 10.3390/md10020340] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2011] [Revised: 01/17/2012] [Accepted: 01/17/2012] [Indexed: 11/16/2022] Open
Abstract
Three new eremophilane sesquiterpenes (1–3) were isolated from the mangrove endophytic fungus Xylaria sp. BL321 together with 07H239-A (4), a known analogue of the new compounds. The structures of these compounds were elucidated by analysis of their MS, 1D and 2D NMR spectroscopic data. Compound 4 showed activation activity on α-glucosidase at 0.15 μM (146%), and then, 4 gradually produced inhibitory activity on α-glucosidase with increasing concentration, and the IC50 value is 6.54 μM.
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Affiliation(s)
- Yongxiang Song
- School of Chemistry and Chemical Engineering, Sun Yat-Sen University, 135 Xingang West Road, Guangzhou 510275, China; (Y.S.); (J.W.); (H.H.); (L.M.)
- CAS Key Laboratory of Marine Bio-resources Sustainable Utilization, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Rd., Guangzhou 510301, China
| | - Jiajian Wang
- School of Chemistry and Chemical Engineering, Sun Yat-Sen University, 135 Xingang West Road, Guangzhou 510275, China; (Y.S.); (J.W.); (H.H.); (L.M.)
| | - Hongbo Huang
- School of Chemistry and Chemical Engineering, Sun Yat-Sen University, 135 Xingang West Road, Guangzhou 510275, China; (Y.S.); (J.W.); (H.H.); (L.M.)
- CAS Key Laboratory of Marine Bio-resources Sustainable Utilization, Guangdong Key Laboratory of Marine Materia Medica, RNAM Center for Marine Microbiology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Rd., Guangzhou 510301, China
| | - Lin Ma
- School of Chemistry and Chemical Engineering, Sun Yat-Sen University, 135 Xingang West Road, Guangzhou 510275, China; (Y.S.); (J.W.); (H.H.); (L.M.)
| | - Jun Wang
- Guangdong Province Key Laboratory of Functional Molecules in Oceanic Microorganism (Sun Yat-Sen University), Bureau of Education of Guangdong, Guangzhou, 510275, China;
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510080, China
| | - Yucheng Gu
- Syngenta Jealott’s Hill International Research Centre, Bracknell, Berkshire, RG42 6EY, UK;
| | - Lan Liu
- School of Chemistry and Chemical Engineering, Sun Yat-Sen University, 135 Xingang West Road, Guangzhou 510275, China; (Y.S.); (J.W.); (H.H.); (L.M.)
- Guangdong Province Key Laboratory of Functional Molecules in Oceanic Microorganism (Sun Yat-Sen University), Bureau of Education of Guangdong, Guangzhou, 510275, China;
- Authors to whom correspondence should be addressed; (L.L.); (Y.L.); Tel./Fax: +86-20-8403-9623
| | - Yongcheng Lin
- School of Chemistry and Chemical Engineering, Sun Yat-Sen University, 135 Xingang West Road, Guangzhou 510275, China; (Y.S.); (J.W.); (H.H.); (L.M.)
- Guangdong Province Key Laboratory of Functional Molecules in Oceanic Microorganism (Sun Yat-Sen University), Bureau of Education of Guangdong, Guangzhou, 510275, China;
- Authors to whom correspondence should be addressed; (L.L.); (Y.L.); Tel./Fax: +86-20-8403-9623
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