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Kashi ME, Ghorbani M, Badibostan H, Seidel V, Hosseini SH, Asili J, Shakeri A, Sahebkar A. Antimicrobial and Cytotoxic Naphthoquinones from Microbial Origin: An Updated Review. Mini Rev Med Chem 2024; 24:844-862. [PMID: 37694782 DOI: 10.2174/1389557523666230911141331] [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: 05/04/2023] [Revised: 07/03/2023] [Accepted: 07/25/2023] [Indexed: 09/12/2023]
Abstract
Naphthoquinones (NQs) are small molecules bearing two carbonyl groups. They have been the subject of much research due to their significant biological activities such as antiproliferative, antimicrobial, anti-inflammatory, antioxidant, and antimalarial effects. NQs are produced mainly by bacteria, fungi and higher plants. Among them, microorganisms are a treasure of NQs with diverse skeletons and pharmacological properties. The purpose of the present study is to provide a comprehensive update on the structural diversity and biological activities of 91 microbial naphthoquinones isolated from 2015 to 2022, with a special focus on antimicrobial and cytotoxic activities. During this period, potent cytotoxic NQs such as naphthablin B (46) and hygrocin C (30) against HeLa (IC50=0.23 μg/ml) and MDA-MB-431 (IC50=0.5 μg/ml) cell lines was reported, respectively. In addition, rubromycin CA1 (39), exhibited strong antibacterial activity against Staphylococcus aureus (MIC of 0.2 μg/ml). As importance bioactive compounds, NQs may open new horizon for treatment of cancer and drug resistant bacteria. As such, it is hoped that this review article may stimulates further research into the isolation of further NQs from microbial, and other sources as well as the screening of such compounds for biological activity and beneficial uses.
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Affiliation(s)
| | - Mahdiyeh Ghorbani
- Department of Pharmacognosy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hasan Badibostan
- Isfahan Clinical Toxicology Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Veronique Seidel
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, UK
| | | | - Javad Asili
- Department of Pharmacognosy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Abolfazl Shakeri
- Department of Pharmacognosy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amirhossein Sahebkar
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
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Liang Y, Li Q, Li Y, Zheng Y, Shen Y, Yang H, Lu Y, Liu J, Zhou Q, Li D, Sun W, Zhu H, Chen C, Zhang Y. Lasiodiplodiapyrones A and B, Pyrone-Preussomerin Adducts with Highly Strained Polycyclic Ring Systems from Lasiodiplodia pseudotheobromae. JOURNAL OF NATURAL PRODUCTS 2023; 86:18-23. [PMID: 36607819 DOI: 10.1021/acs.jnatprod.2c00530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Lasiodiplodiapyrones A and B (1 and 2), two new preussomerin derivatives, possessing an unexpected 6-methyl-4H-furo[3,2-c]pyran-4-one moiety and a highly functionalized conjoint and complicated polycyclic ring system, along with two known congeners (3 and 4), were isolated from the fungus Lasiodiplodia pseudotheobromae. Their structures including absolute configurations were determined by spectroscopic analyses, Mosher's method, and ECD calculations. A biosynthetic pathway was proposed to explain the origin of lasiodiplodiapyrones A and B as well as their relationship with preussomerins. Compounds 1-4 showed suppressive effects on the production of NO with IC50 values of 4.8 ± 0.3, 8.5 ± 1.1, 5.9 ± 0.8, and 12.8 ± 1.3 μM, respectively.
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Affiliation(s)
- Yu Liang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, People's Republic of China
| | - Qin Li
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, People's Republic of China
| | - Yongqi Li
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, People's Republic of China
| | - Yuyi Zheng
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, People's Republic of China
| | - Yong Shen
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, People's Republic of China
| | - Haojie Yang
- Huaxi MR Research Center, Department of Nuclear Medicine, Frontiers Science Center for Diseaserelated Molecular Network, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu 610000, Sichuan Province, People's Republic of China
| | - Yuling Lu
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, People's Republic of China
| | - Junjun Liu
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, People's Republic of China
| | - Qun Zhou
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, People's Republic of China
| | - Dongyan Li
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, People's Republic of China
| | - Weiguang Sun
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, People's Republic of China
| | - Hucheng Zhu
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, People's Republic of China
| | - Chunmei Chen
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, People's Republic of China
| | - Yonghui Zhang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, People's Republic of China
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Yu L, Guo S, Wang Y, Liao A, Zhang W, Sun P, Wu J. Design, Synthesis, and Bioactivity of Spiro Derivatives Containing a Pyridine Moiety. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:15726-15736. [PMID: 36475721 DOI: 10.1021/acs.jafc.2c06189] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
We designed and synthesized a series of pyridine spiro derivatives and evaluated their insecticidal and antiviral activities. Some compounds exhibited good insecticidal and antiviral activities. Notably, the E series of compounds displayed good insecticidal activity against Tetranychus urticae. Compounds E20 (EC50 = 63.68 mg/L) and F4 (EC50 = 47.81 mg/L) exhibited inactivation activities against the tobacco mosaic virus (TMV), which were similar to that of Ningnanmycin (EC50 = 58.01 mg/L). Molecular docking showed that compounds E20 and F4 exhibited satisfactory affinities for the TMV coat protein (TMV-CP), with binding energies (-6.7 and -6.4 kcal/mol, respectively) slightly lower than that of Ningnanmycin (-6.3 kcal/mol). Further, molecular dynamics analysis revealed that compounds E20 and F4 exhibited better binding stability values than Ningnanmycin. Microscale thermophoresis showed that compounds E20 (Kd = 0.053 ± 0.016 μM) and F4 (Kd = 0.045 ± 0.022 μM) bound more strongly to TMV-CP than Ningnanmycin (Kd = 0.10 ± 0.029 μM). The results of transmission electron microscopy showed that these two compounds hindered the self-assembly and growth of TMV. In summary, we showed that these pyridine spiro derivatives could be used as a basis for the research and development of novel pesticides.
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Affiliation(s)
- Lijiao Yu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Shengxin Guo
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Ya Wang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Anjing Liao
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Wei Zhang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Ping Sun
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Jian Wu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
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Tammam MA, Sebak M, Greco C, Kijjoa A, El-Demerdash A. Chemical diversity, biological activities and biosynthesis of fungal naphthoquinones and their derivatives: A comprehensive update. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Yu L, Dai A, Zhang W, Liao A, Guo S, Wu J. Spiro Derivatives in the Discovery of New Pesticides: A Research Review. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:10693-10707. [PMID: 35998302 DOI: 10.1021/acs.jafc.2c02301] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Spiro compounds are biologically active organic compounds with unique structures, found in a wide variety of natural products and drugs. They do not readily lead to drug resistance due to their unique mechanisms of action and have, therefore, attracted considerable attention regarding pesticide development. Analyzing structure-activity relationships (SARs) and summarizing the characteristics of spiro compounds with high activity are crucial steps in the design and development of new pesticides. This review mainly summarizes spiro compounds with insecticidal, bactericidal, fungicidal, herbicidal, antiviral, and plant growth regulating functions to provide insight for the creation of new spiro compound pesticides.
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Affiliation(s)
- Lijiao Yu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Ali Dai
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Wei Zhang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Anjing Liao
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Shengxin Guo
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Jian Wu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
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Fan J, Sun S, Lv C, Li Z, Guo M, Yin Y, Wang H, Wang W. Discovery of mycotoxin alternariol as a potential lead compound targeting xanthine oxidase. Chem Biol Interact 2022; 360:109948. [DOI: 10.1016/j.cbi.2022.109948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 04/04/2022] [Accepted: 04/11/2022] [Indexed: 12/01/2022]
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Huang L, Mu Y, Zhang X, Chang K, Zhang J. The mitochondrial genome of the endophyte Edenia gomezpompae CRI Eg3 isolated from sweet potato. Mitochondrial DNA B Resour 2022; 7:454-455. [PMID: 35274041 PMCID: PMC8903775 DOI: 10.1080/23802359.2022.2048209] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Edenia gomezpompae CRI Eg3 was isolated from the leaves of sweet potato. Its complete mitogenome contains 37,226 bp, with a G + C content of 26.1%. A total of 51 genes were annotated, including 16 protein-coding genes, 33 tRNA genes, and 2 rRNA (s-rRNA, L-rRNA) genes. The most significant character of this mitogenome is its free of group I introns in the CDS regions. Phylogenetic analysis using the mitogenomes of relative fungal species indicated that CRI Eg3 is closely related to Shiraia bambusicola, and they clustered in the Pleosporales lineage. This is the first genome reported in the genus Edenia.
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Affiliation(s)
- Lifei Huang
- Crop Research Institute, Guangdong Academy of Agricultural Sciences, Guangdong Provincial Key Laboratory of Crops Genetics and Improvement, Guangzhou, Guangdong, China
| | - Yaojia Mu
- Hainan Key Laboratory of Microbiological Resources, Institute of Tropical Bioscience and Biotechnology, Hainan Bioenergy Center, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | - Xinxin Zhang
- Crop Research Institute, Guangdong Academy of Agricultural Sciences, Guangdong Provincial Key Laboratory of Crops Genetics and Improvement, Guangzhou, Guangdong, China
| | - Kaijun Chang
- Hainan Key Laboratory of Microbiological Resources, Institute of Tropical Bioscience and Biotechnology, Hainan Bioenergy Center, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | - Jiaming Zhang
- Hainan Key Laboratory of Microbiological Resources, Institute of Tropical Bioscience and Biotechnology, Hainan Bioenergy Center, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
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8
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Phytotoxic compounds from endophytic fungi. Appl Microbiol Biotechnol 2022; 106:931-950. [PMID: 35039926 DOI: 10.1007/s00253-022-11773-w] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 01/11/2022] [Accepted: 01/11/2022] [Indexed: 12/22/2022]
Abstract
Weeds represent one of the most challenging biotic factors for the agricultural sector, responsible for causing significant losses in important agricultural crops. Traditional herbicides have managed to keep weeds at bay, but overuse has resulted in negative environmental and toxicological impacts, including the increase of herbicide-resistant species. Within this context, the use of biologically derived (bio-)herbicides represents a promising solution because they are able to provide the desired phytotoxic effects while causing less toxic environmental damage. In recent years, bioactive secondary metabolites, in particular those bio-synthesized by endophytic fungi, have been shown to be promising sources of novel compounds that can be exploited in agriculture, including their use in weed control. Endophytic fungi have the ability to produce volatile and nonvolatile compounds with broad phytotoxic activity. In addition, as a result of the beneficial relationships they establish with their host plants, they are part of the colonization mechanism and can provide protection for their hosts. As such, endophytic fungi can be exploited as bioherbicides and as research tools. In this review, we cover 100 nonvolatile secondary metabolites with phytotoxic activity and more than 20 volatile organic compounds in a mixture, produced by 28 isolates of endophytic fungi from 21 host plant families, collected in 8 countries. This information can form the basis for the application of endophytic fungal compounds in weed control. KEY POINTS: • Endophytic fungi produce a wide variety of secondary metabolites with unique and complex structures. • Fungal endophytes produce volatile and nonvolatile compounds with promising phytotoxic activity. • Endophytic fungi are a promising source of useful bioherbicides.
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Jahn L, Storm-Johannsen L, Seidler D, Noack J, Gao W, Schafhauser T, Wohlleben W, van Berkel WJH, Jacques P, Kar T, Piechulla B, Ludwig-Müller J. The Endophytic Fungus Cyanodermella asteris Influences Growth of the Nonnatural Host Plant Arabidopsis thaliana. MOLECULAR PLANT-MICROBE INTERACTIONS : MPMI 2022; 35:49-63. [PMID: 34615362 DOI: 10.1094/mpmi-03-21-0072-r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Cyanodermella asteris is a fungal endophyte from Aster tataricus, a perennial plant from the northern part of Asia. Here, we demonstrated an interaction of C. asteris with Arabidopsis thaliana, Chinese cabbage, rapeseed, tomato, maize, or sunflower resulting in different phenotypes such as shorter main roots, massive lateral root growth, higher leaf and root biomass, and increased anthocyanin levels. In a variety of cocultivation assays, it was shown that these altered phenotypes are caused by fungal CO2, volatile organic compounds, and soluble compounds, notably astins. Astins A, C, and G induced plant growth when they were individually included in the medium. In return, A. thaliana stimulates the fungal astin C production during cocultivation. Taken together, our results indicate a bilateral interaction between the fungus and the plant. A stress response in plants is induced by fungal metabolites while plant stress hormones induced astin C production of the fungus. Interestingly, our results not only show unidirectional influence of the fungus on the plant but also vice versa. The plant is able to influence growth and secondary metabolite production in the endophyte, even when both organisms do not live in close contact, suggesting the involvement of volatile compounds.[Formula: see text] Copyright © 2021 The Author(s). This is an open access article distributed under the CC BY-NC-ND 4.0 International license.
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Affiliation(s)
- Linda Jahn
- Plant Physiology, Faculty of Biology, Technische Universität Dresden, 01062 Dresden, Germany
| | - Lisa Storm-Johannsen
- Plant Physiology, Faculty of Biology, Technische Universität Dresden, 01062 Dresden, Germany
| | - Diana Seidler
- Plant Physiology, Faculty of Biology, Technische Universität Dresden, 01062 Dresden, Germany
| | - Jasmin Noack
- Plant Physiology, Faculty of Biology, Technische Universität Dresden, 01062 Dresden, Germany
| | - Wei Gao
- Biopsychology, Faculty of Psychology, Technische Universität Dresden, 01062 Dresden, Germany
| | - Thomas Schafhauser
- Plant Physiology, Faculty of Biology, Technische Universität Dresden, 01062 Dresden, Germany
- Interfaculty Institute of Microbiology and Infection Medicine, Microbiology and Biotechnology, Eberhard Karls Universität Tübingen, 72076 Tübingen, Germany
| | - Wolfgang Wohlleben
- Interfaculty Institute of Microbiology and Infection Medicine, Microbiology and Biotechnology, Eberhard Karls Universität Tübingen, 72076 Tübingen, Germany
| | - Willem J H van Berkel
- Laboratory of Biochemistry, Wageningen University Dreijenlaan 3, 6703 HA Wageningen, The Netherlands
| | - Philippe Jacques
- MiPI, TERRA Teaching and Research Centre, Joint Research Unit BioEcoAgro, UMRt 1158, Gembloux, Belgium
| | - Tambi Kar
- Lipofabrik, Cité Scientifique, Bât. Polytech-Lille, Avenue Langevin 59 655, Villeneuve d'Ascq, France
| | - Birgit Piechulla
- Institute for Biological Science, Biochemistry, University of Rostock, 18059 Rostock, Germany
| | - Jutta Ludwig-Müller
- Plant Physiology, Faculty of Biology, Technische Universität Dresden, 01062 Dresden, Germany
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Pellissier L, Koval A, Marcourt L, Ferreira Queiroz E, Lecoultre N, Leoni S, Quiros-Guerrero LM, Barthélémy M, Duivelshof BL, Guillarme D, Tardy S, Eparvier V, Perron K, Chave J, Stien D, Gindro K, Katanaev V, Wolfender JL. Isolation and Identification of Isocoumarin Derivatives With Specific Inhibitory Activity Against Wnt Pathway and Metabolome Characterization of Lasiodiplodia venezuelensis. Front Chem 2021; 9:664489. [PMID: 34458231 PMCID: PMC8397479 DOI: 10.3389/fchem.2021.664489] [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: 04/20/2021] [Accepted: 07/12/2021] [Indexed: 12/24/2022] Open
Abstract
The Wnt signaling pathway controls multiple events during embryonic development of multicellular animals and is carcinogenic when aberrantly activated in adults. Breast cancers are dependent on Wnt pathway overactivation mostly through dysregulation of pathway component protein expression, which necessitates the search for therapeutically relevant compounds targeting them. Highly diverse microorganisms as endophytes represent an underexplored field in the therapeutic natural products research. In the present work, the objective was to explore the chemical diversity and presence of selective Wnt inhibitors within a unique collection of fungi isolated as foliar endophytes from the long-lived tropical palm Astrocaryum sciophilum. The fungi were cultured, extracted with ethyl acetate, and screened for their effects on the Wnt pathway and cell proliferation. The endophytic strain Lasiodiplodia venezuelensis was prioritized for scaled-up fractionation based on its selective activity. Application of geometric transfer from analytical HPLC conditions to semi-preparative scale and use of dry load sample introduction enabled the isolation of 15 pure compounds in a single step. Among the molecules identified, five are original natural products described for the first time, and six are new to this species. An active fraction obtained by semi-preparative HPLC was re-purified by UHPLC-PDA using a 1.7 µm phenyl column. 75 injections of 8 µg were necessary to obtain sufficient amounts of each compound for structure elucidation and bioassays. Using this original approach, in addition to the two major compounds, a third minor compound identified as (R)-(-)-5-hydroxymellein (18) was obtained, which was found to be responsible for the significant Wnt inhibition activity recorded. Further studies of this compound and its structural analogs showed that only 18 acts in a highly specific manner, with no acute cytotoxicity. This compound is notably selective for upstream components of the Wnt pathway and is able to inhibit the proliferation of three triple negative breast cancer cell lines. In addition to the discovery of Wnt inhibitors of interest, this study contributes to better characterize the biosynthetic potential of L. venezuelensis.
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Affiliation(s)
- Léonie Pellissier
- School of Pharmaceutical Sciences, University of Geneva, CMU, Geneva, Switzerland.,Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU, Geneva, Switzerland
| | - Alexey Koval
- Department of Cell Physiology and Metabolism, Translational Research Centre in Oncohaematology, Faculty of Medicine, University of Geneva, CMU, Geneva, Switzerland
| | - Laurence Marcourt
- School of Pharmaceutical Sciences, University of Geneva, CMU, Geneva, Switzerland.,Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU, Geneva, Switzerland
| | - Emerson Ferreira Queiroz
- School of Pharmaceutical Sciences, University of Geneva, CMU, Geneva, Switzerland.,Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU, Geneva, Switzerland
| | - Nicole Lecoultre
- Mycology Group, Research Department Plant Protection, Agroscope, Nyon, Switzerland
| | - Sara Leoni
- Microbiology Unit, Department of Botany and Plant Biology, University of Geneva, Geneva, Switzerland
| | - Luis-Manuel Quiros-Guerrero
- School of Pharmaceutical Sciences, University of Geneva, CMU, Geneva, Switzerland.,Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU, Geneva, Switzerland
| | - Morgane Barthélémy
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, Gif-sur-Yvette, France
| | - Bastiaan L Duivelshof
- School of Pharmaceutical Sciences, University of Geneva, CMU, Geneva, Switzerland.,Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU, Geneva, Switzerland
| | - Davy Guillarme
- School of Pharmaceutical Sciences, University of Geneva, CMU, Geneva, Switzerland.,Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU, Geneva, Switzerland
| | - Sébastien Tardy
- School of Pharmaceutical Sciences, University of Geneva, CMU, Geneva, Switzerland.,Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU, Geneva, Switzerland
| | - Véronique Eparvier
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, Gif-sur-Yvette, France
| | - Karl Perron
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU, Geneva, Switzerland.,Microbiology Unit, Department of Botany and Plant Biology, University of Geneva, Geneva, Switzerland
| | - Jérôme Chave
- CNRS, Biological Diversity and Evolution (UMR 5174), Toulouse, France
| | - Didier Stien
- Sorbonne Université, CNRS, Laboratoire de Biodiversité et Biotechnologie Microbiennes, LBBM, Observatoire Océanologique, Banyuls-Sur-Mer, France
| | - Katia Gindro
- Mycology Group, Research Department Plant Protection, Agroscope, Nyon, Switzerland
| | - Vladimir Katanaev
- Department of Cell Physiology and Metabolism, Translational Research Centre in Oncohaematology, Faculty of Medicine, University of Geneva, CMU, Geneva, Switzerland.,School of Biomedicine, Far Eastern Federal University, Vladivostok, Russia
| | - Jean-Luc Wolfender
- School of Pharmaceutical Sciences, University of Geneva, CMU, Geneva, Switzerland.,Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU, Geneva, Switzerland
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Mitochondrial damage produced by phytotoxic chromenone and chromanone derivatives from endophytic fungus Daldinia eschscholtzii strain GsE13. Appl Microbiol Biotechnol 2021; 105:4225-4239. [PMID: 33970316 DOI: 10.1007/s00253-021-11318-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 04/16/2021] [Accepted: 04/26/2021] [Indexed: 12/20/2022]
Abstract
Bioassay-guided fractionation of the organic extracts of the endophyte Daldinia eschscholtzii strain GsE13 led to the isolation of several phytotoxic compounds, including two chromenone and two chromanone derivatives: 5-hydroxy-8-methoxy-2-methyl-4H-chromen-4-one, 1; 5-hydroxy-2-methyl-4H-chromen-4-one, 2; 5-methoxy-2-methyl-chroman-4-one, 3; and 5-methoxy-2-methyl-chroman-4-ol, 4; as well as other aromatic compounds: 4,8-dihydroxy-1-tetralone, 5; 1,8-dimethoxynaphthalene, 6; and 4,9-dihydroxy-1,2,11,12-tetrahydroperyl-ene-3,10-quinone, 7. Compounds 1, 4, and 7 were isolated for the first time from D. eschscholtzii. The phytotoxicity of all the compounds was determined on germination, root growth, and oxygen uptake in seedlings of a monocotyledonous (Panicum miliaceum) and three dicotyledonous plants (Medicago sativa, Trifolium pratense, and Amaranthus hypochondriacus). In general, root growth was the most affected process in all four weeds, and chromenones 1 and 2 were the most phytotoxic compounds. Phytotoxins 1-4 inhibited basal oxygen consumption rate in isolated mitochondria from M. sativa seedlings and also caused serious damage to their membrane potential (ΔΨm) in percentages greater than 50% at concentrations lower than 2 mM. Based on these results, compounds 1-4 of endophytic origin could be promising for the development of new herbicides potentially useful in agriculture or for the synthesis of promising new molecules. KEY POINTS: • Endophytic fungus Daldinia eschscholtzii produces phytotoxic compounds. • Phytotoxins inhibit basal oxygen consumption rate in isolated M. sativa mitochondria. • Phytotoxins altered the mitochondrial membrane potential.
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Xu D, Xue M, Shen Z, Jia X, Hou X, Lai D, Zhou L. Phytotoxic Secondary Metabolites from Fungi. Toxins (Basel) 2021; 13:261. [PMID: 33917534 PMCID: PMC8067579 DOI: 10.3390/toxins13040261] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 04/02/2021] [Accepted: 04/03/2021] [Indexed: 02/06/2023] Open
Abstract
Fungal phytotoxic secondary metabolites are poisonous substances to plants produced by fungi through naturally occurring biochemical reactions. These metabolites exhibit a high level of diversity in their properties, such as structures, phytotoxic activities, and modes of toxicity. They are mainly isolated from phytopathogenic fungal species in the genera of Alternaria, Botrytis, Colletotrichum, Fusarium, Helminthosporium, and Phoma. Phytotoxins are either host specific or non-host specific phytotoxins. Up to now, at least 545 fungal phytotoxic secondary metabolites, including 207 polyketides, 46 phenols and phenolic acids, 135 terpenoids, 146 nitrogen-containing metabolites, and 11 others, have been reported. Among them, aromatic polyketides and sesquiterpenoids are the main phytotoxic compounds. This review summarizes their chemical structures, sources, and phytotoxic activities. We also discuss their phytotoxic mechanisms and structure-activity relationships to lay the foundation for the future development and application of these promising metabolites as herbicides.
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Affiliation(s)
| | | | | | | | | | | | - Ligang Zhou
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China; (D.X.); (M.X.); (Z.S.); (X.J.); (X.H.); (D.L.)
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Chemoinformatic Screening for the Selection of Potential Senolytic Compounds from Natural Products. Biomolecules 2021; 11:biom11030467. [PMID: 33809876 PMCID: PMC8004226 DOI: 10.3390/biom11030467] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 03/15/2021] [Accepted: 03/17/2021] [Indexed: 12/17/2022] Open
Abstract
Cellular senescence is a cellular condition that involves significant changes in gene expression and the arrest of cell proliferation. Recently, it has been suggested in experimental models that the elimination of senescent cells with pharmacological methods delays, prevents, and improves multiple adverse outcomes related to age. In this sense, the so-called senoylitic compounds are a class of drugs that selectively eliminates senescent cells (SCs) and that could be used in order to delay such adverse outcomes. Interestingly, the first senolytic drug (navitoclax) was discovered by using chemoinformatic and network analyses. Thus, in the present study, we searched for novel senolytic compounds through the use of chemoinformatic tools (fingerprinting and network pharmacology) over different chemical databases (InflamNat and BIOFACQUIM) coming from natural products (NPs) that have proven to be quite remarkable for drug development. As a result of screening, we obtained three molecules (hinokitiol, preussomerin C, and tanshinone I) that could be considered senolytic compound candidates since they share similarities in structure with senolytic leads (tunicamycin, ginsenoside Rb1, ABT 737, rapamycin, navitoclax, timosaponin A-III, digoxin, roxithromycin, and azithromycin) and targets involved in senescence pathways with potential use in the treatment of age-related diseases.
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Alam B, Lǐ J, Gě Q, Khan MA, Gōng J, Mehmood S, Yuán Y, Gǒng W. Endophytic Fungi: From Symbiosis to Secondary Metabolite Communications or Vice Versa? FRONTIERS IN PLANT SCIENCE 2021; 12:791033. [PMID: 34975976 PMCID: PMC8718612 DOI: 10.3389/fpls.2021.791033] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 11/29/2021] [Indexed: 05/08/2023]
Abstract
Endophytic fungi (EF) are a group of fascinating host-associated fungal communities that colonize the intercellular or intracellular spaces of host tissues, providing beneficial effects to their hosts while gaining advantages. In recent decades, accumulated research on endophytic fungi has revealed their biodiversity, wide-ranging ecological distribution, and multidimensional interactions with host plants and other microbiomes in the symbiotic continuum. In this review, we highlight the role of secondary metabolites (SMs) as effectors in these multidimensional interactions, and the biosynthesis of SMs in symbiosis via complex gene expression regulation mechanisms in the symbiotic continuum and via the mimicry or alteration of phytochemical production in host plants. Alternative biological applications of SMs in modern medicine, agriculture, and industry and their major classes are also discussed. This review recapitulates an introduction to the research background, progress, and prospects of endophytic biology, and discusses problems and substantive challenges that need further study.
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Affiliation(s)
- Beena Alam
- State Key Laboratory of Cotton Biology, Key Laboratory of Biological and Genetic Breeding of Cotton, The Ministry of Agriculture, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
| | - Jùnwén Lǐ
- State Key Laboratory of Cotton Biology, Key Laboratory of Biological and Genetic Breeding of Cotton, The Ministry of Agriculture, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
| | - Qún Gě
- State Key Laboratory of Cotton Biology, Key Laboratory of Biological and Genetic Breeding of Cotton, The Ministry of Agriculture, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
| | - Mueen Alam Khan
- Department of Plant Breeding & Genetics, University College of Agriculture and Environmental Sciences, The Islamia University of Bahawalpur (IUB), Bahawalpur, Pakistan
| | - Jǔwǔ Gōng
- State Key Laboratory of Cotton Biology, Key Laboratory of Biological and Genetic Breeding of Cotton, The Ministry of Agriculture, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
| | - Shahid Mehmood
- Biotechnology Research Institute (BRI), Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yǒulù Yuán
- State Key Laboratory of Cotton Biology, Key Laboratory of Biological and Genetic Breeding of Cotton, The Ministry of Agriculture, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
- *Correspondence: Wànkuí Gǒng,
| | - Wànkuí Gǒng
- State Key Laboratory of Cotton Biology, Key Laboratory of Biological and Genetic Breeding of Cotton, The Ministry of Agriculture, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
- Yǒulù Yuán,
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Hu M, Yang XQ, Wang CF, Zhao TD, Wang DL, Yang YB, Ding ZT. Paraverrucsins A-F, Antifeedant, and Antiphytopathogenic Polyketides from Rhizospheric Paraphaeosphaeria verruculosa and Induced Bioactivity Enhancement by Coculturing with Host Plant Dendrobium officinale. ACS OMEGA 2020; 5:30596-30602. [PMID: 33283108 PMCID: PMC7711696 DOI: 10.1021/acsomega.0c04548] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Accepted: 11/05/2020] [Indexed: 06/12/2023]
Abstract
Six new polyketides named paraverrucsins A-F (1-6) with oxabicyclic and dioxatricyclic skeletons, together with eight known metabolites (7-14), were discovered and isolated from the fermentation medium of Paraphaeosphaeria verruculosa. Paraverrucsin A-C possessed a novel decarboxylated skeleton compared with that of trichocladinols. Their structures were elucidated by extensive spectral analysis and DP4+ calculations. Paraverrucsins B/C and D/E were isolated as a mixture for the mutarotation occurred at C-2. Paraverrucsins B/C, D/E, F/trichocladinol B, 8, and 9 displayed antifeedant activities against silkworm larvae, with antifeedant index percentages ranging from 62.5 to 93.0%, at a concentration of 50 μg/cm2. Among them, Paraverrucsins B/C and 9 had EC50 values at 13.9 and 18.2 μg/cm2. Most compounds showed antifungal activities against phytopathogenic fungi with minimum inhibitory concentration (MIC) values of 16-64 μg/mL. Coculture of P. verruculosa and host plant Dendrobium officinale leads to the enhancement of antifeedant and antiphytopathogenic activities. Compounds 1, 2/3, 4/5, 6/14 were tested for cytotoxicity against five human carcinoma cell lines, HL-60, A549, MCF-7, SW480, and SMMC-7721, while they exhibited selected cytotoxicity against SW480 with inhibition ratios of 32-38% at a concentration of 40 μM.
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Affiliation(s)
- Ming Hu
- Functional
Molecules Analysis and Biotransformation Key Laboratory of Universities
in Yunnan Province, Yunnan University, 2nd Cuihu North Road, Kunming 650091, China
- Key
Laboratory of Medicinal Chemistry for Natural Resource, Ministry Education
and Yunnan Province, School of Chemical Science and Technology, Yunnan University, 2nd Cuihu North Road, Kunming 650091, China
| | - Xue-Qiong Yang
- Functional
Molecules Analysis and Biotransformation Key Laboratory of Universities
in Yunnan Province, Yunnan University, 2nd Cuihu North Road, Kunming 650091, China
- Key
Laboratory of Medicinal Chemistry for Natural Resource, Ministry Education
and Yunnan Province, School of Chemical Science and Technology, Yunnan University, 2nd Cuihu North Road, Kunming 650091, China
| | - Cui-Fang Wang
- Functional
Molecules Analysis and Biotransformation Key Laboratory of Universities
in Yunnan Province, Yunnan University, 2nd Cuihu North Road, Kunming 650091, China
- Key
Laboratory of Medicinal Chemistry for Natural Resource, Ministry Education
and Yunnan Province, School of Chemical Science and Technology, Yunnan University, 2nd Cuihu North Road, Kunming 650091, China
| | - Tong-De Zhao
- Functional
Molecules Analysis and Biotransformation Key Laboratory of Universities
in Yunnan Province, Yunnan University, 2nd Cuihu North Road, Kunming 650091, China
- Key
Laboratory of Medicinal Chemistry for Natural Resource, Ministry Education
and Yunnan Province, School of Chemical Science and Technology, Yunnan University, 2nd Cuihu North Road, Kunming 650091, China
| | - Dai-Li Wang
- Functional
Molecules Analysis and Biotransformation Key Laboratory of Universities
in Yunnan Province, Yunnan University, 2nd Cuihu North Road, Kunming 650091, China
- Key
Laboratory of Medicinal Chemistry for Natural Resource, Ministry Education
and Yunnan Province, School of Chemical Science and Technology, Yunnan University, 2nd Cuihu North Road, Kunming 650091, China
| | - Ya-Bin Yang
- Functional
Molecules Analysis and Biotransformation Key Laboratory of Universities
in Yunnan Province, Yunnan University, 2nd Cuihu North Road, Kunming 650091, China
- Key
Laboratory of Medicinal Chemistry for Natural Resource, Ministry Education
and Yunnan Province, School of Chemical Science and Technology, Yunnan University, 2nd Cuihu North Road, Kunming 650091, China
| | - Zhong-Tao Ding
- Functional
Molecules Analysis and Biotransformation Key Laboratory of Universities
in Yunnan Province, Yunnan University, 2nd Cuihu North Road, Kunming 650091, China
- Key
Laboratory of Medicinal Chemistry for Natural Resource, Ministry Education
and Yunnan Province, School of Chemical Science and Technology, Yunnan University, 2nd Cuihu North Road, Kunming 650091, China
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Brassica oleracea var. acephala (kale) improvement by biological activity of root endophytic fungi. Sci Rep 2020; 10:20224. [PMID: 33214647 PMCID: PMC7678862 DOI: 10.1038/s41598-020-77215-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 11/06/2020] [Indexed: 11/08/2022] Open
Abstract
Brassica oleracea var. acephala (kale) is a cruciferous vegetable widely cultivated for its leaves and flower buds in Atlantic Europe and the Mediterranean area, being a food of great interest as a "superfood" today. Little has been studied about the diversity of endophytic fungi in the Brassica genus, and there are no studies regarding kale. In this study, we made a survey of the diversity of endophytic fungi present in the roots of six different Galician kale local populations. In addition, we investigated whether the presence of endophytes in the roots was beneficial to the plants in terms of growth, cold tolerance, or resistance to bacteria and insects. The fungal isolates obtained belonged to 33 different taxa. Among those, a Fusarium sp. and Pleosporales sp. A between Setophoma and Edenia (called as Setophoma/Edenia) were present in many plants of all five local populations, being possible components of a core kale microbiome. For the first time, several interactions between endophytic fungus and Brassica plants are described and is proved how different interactions are beneficial for the plant. Fusarium sp. and Pleosporales sp. B close to Pyrenophora (called as Pyrenophora) promoted plant growth and increased cold tolerance. On the other hand, isolates of Trichoderma sp., Pleosporales sp. C close to Phialocephala (called as Phialocephala), Fusarium sp., Curvularia sp., Setophoma/Edenia and Acrocalymma sp. were able to activate plant systemic resistance against the bacterial pathogen Xanthomonas campestris. We also observed that Fusarium sp., Curvularia sp. and Setophoma/Edenia confered resistance against Mamestra brassicae larvae.
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Tan Y, Guo Z, Zhu M, Shi J, Li W, Jiao R, Tan R, Ge H. Anti-inflammatory spirobisnaphthalene natural products from a plant-derived endophytic fungus Edenia gomezpompae. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2020.03.059] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Moura MS, Lacerda JWF, Siqueira KA, Bellete BS, Sousa PT, Dall Óglio EL, Soares MA, Vieira LCC, Sampaio OM. Endophytic fungal extracts: evaluation as photosynthesis and weed growth inhibitors. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2020; 55:470-476. [PMID: 32009547 DOI: 10.1080/03601234.2020.1721981] [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] [Indexed: 06/10/2023]
Abstract
A central pillar of modern weed control is the discovery of new herbicides which are nontoxic to humans and the environment and which have low application dosage. The natural products found in plants and microorganisms are well suited in this context because they are generally nontoxic and have a wide variety of biological activities. In this work, Diaporthe phaseolorum (Dp), Penicillium simplicissimum (Ps) and Trichoderma spirale (Ts) (methanolic extracts) were evaluated as photosynthesis and plant growth inhibitors in Senna occidentalis and Ipomoea grandifolia. The most significant results were observed for Ts and Dp in S. occidentalis and I. grandifolia, respectively. Ts reduced PI(abs), ET0/CS0, PHI(E0) and PSI0 parameters by 64, 28, 40 and 38%, respectively, indicating a reduction on electron transport efficiency. Additionally, Ts decreased shoot length by 9%, affecting the plant growth. Dp reduced PI(abs), ET0/CS0 and PHI(E0) parameters by 50, 20, 26 and 22%, respectively, revealing the inhibition competency on PSII acceptor site. Furthermore, Dp decreased by 50% the shoot length on germination assay. Thus, the phytotoxic behaviors based on endophytic fungal extracts may serve as a valuable tool in the further development of a bioherbicide since natural products represent an interesting alternative to replace commercial herbicides.
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Affiliation(s)
- Mariana S Moura
- Department of Chemistry, Federal University of Mato Grosso, Cuiabá, Brazil
| | - Jhuly W F Lacerda
- Department of Chemistry, Federal University of Mato Grosso, Cuiabá, Brazil
| | - Kátia A Siqueira
- Institute of Biosciences, Federal University of Mato Grosso, Cuiabá, Brazil
| | - Barbara S Bellete
- Department of Chemistry, Federal University of Lavras, Lavras, Brazil
| | - Paulo T Sousa
- Department of Chemistry, Federal University of Mato Grosso, Cuiabá, Brazil
| | | | - Marcos A Soares
- Institute of Biosciences, Federal University of Mato Grosso, Cuiabá, Brazil
| | - Lucas C C Vieira
- Engineering Faculty, Federal University of Mato Grosso, Várzea Grande, Brazil
| | - Olívia M Sampaio
- Department of Chemistry, Federal University of Mato Grosso, Cuiabá, Brazil
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Rudnicka M, Ludynia M, Karcz W. Effects of Naphthazarin (DHNQ) Combined with Lawsone (NQ-2-OH) or 1,4-Naphthoquinone (NQ) on the Auxin-Induced Growth of Zea mays L. Coleoptile Segments. Int J Mol Sci 2019; 20:E1788. [PMID: 30978914 PMCID: PMC6479706 DOI: 10.3390/ijms20071788] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 04/02/2019] [Accepted: 04/09/2019] [Indexed: 11/16/2022] Open
Abstract
Naphthoquinones, plants secondary metabolites are known for their antibacterial, antifungal, anti-inflammatory, anti-cancer and anti-parasitic properties. The biological activity of naphthoquinones is connected with their ability to generate reactive oxygen species and to modify biological molecules at their nucleophilic sites. In our research, the effect of naphthazarin (DHNQ) combined with 2-hydroxy-1,4-naphthoquinone (NQ-2-OH) or 1,4-naphthoquinone (1,4-NQ) on the elongation growth, pH changes of the incubation medium, oxidative stress and redox activity of maize coleoptile cells were investigated. This paper describes experiments performed with maize (Zea mays L.) coleoptile segments, which is a classical model system to study plant cell elongation growth. The data presented clearly demonstrate that lawsone and 1,4-naphthoquinone combined with naphthazarin, at low concentrations (1 and 10 nM), reduced the endogenous and IAA-induced (Indole-3-Acetic Acid) elongation growth of maize coleoptile segments. Those changes in growth correlated with the proton concentration in the incubation medium, which suggests that the changes in the growth of maize coleoptile segments observed in the presence of naphthoquinones are mediated through the activity of PM H⁺-ATPase. The presence of naphthoquinones induced oxidative stress in the maize coleoptile tissue by producing hydrogen peroxide and causing changes in the redox activity. Moreover, the incubation of maize segments with both naphthoquinones combined with naphthazarin resulted in lipid peroxidation and membrane damage. The regulation of PM H⁺-ATPase activity, especially its inhibition, may result from two major types of reaction: first, a direct interaction between an enzyme and naphthoquinone, which leads to the covalent modification of the protein thiols and the generation of thioethers, which have been found to alter the activity of the PM H⁺-ATPases; second, naphthoquinones induce reactive oxygen species (ROS) production, which inhibits PM H⁺-ATPases by increasing cytosolic Ca2+. This harmful effect was stronger when naphthazarin and 1,4-naphthoquinone were added together. Taking these results into account, it can be suggested that by combining naphthoquinones in small quantities, an alternative to synthetic pesticides could be developed.
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Affiliation(s)
- Małgorzata Rudnicka
- Department of Plant Physiology, Faculty of Biology and Environmental Protection, University of Silesia, Jagiellońska 28, PL-40032 Katowice, Poland.
| | - Michał Ludynia
- Department of Plant Physiology, Faculty of Biology and Environmental Protection, University of Silesia, Jagiellońska 28, PL-40032 Katowice, Poland.
| | - Waldemar Karcz
- Department of Plant Physiology, Faculty of Biology and Environmental Protection, University of Silesia, Jagiellońska 28, PL-40032 Katowice, Poland.
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Liu X, Wang W, Zhao Y, Lai D, Zhou L, Liu Z, Wang M. Total Synthesis and Structure Revision of Palmarumycin B 6. JOURNAL OF NATURAL PRODUCTS 2018; 81:1803-1809. [PMID: 30102534 DOI: 10.1021/acs.jnatprod.8b00258] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Palmarumycin B6 and its regioisomer were synthesized via 7- and 13-step routes using 2-chlorophenol and 4-chlorophenyl methyl ether as the starting materials in overall yields of 2.7% and 12%, respectively. Their structures were characterized by 1H and 13C NMR, HRESIMS, and X-ray diffraction data. The structure of palmarumycin B6 was revised as 6-chloropalmarumycin CP17. The bioassay results showed that the larvicidal activity of palmarumycin B6 with an LC50 value of 32.7 μM was significantly higher than that of its 8-chloro isomer, with an LC50 value of 227.3 μM.
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Ulloa-Benítez Á, Medina-Romero YM, Sánchez-Fernández RE, Lappe-Oliveras P, Roque-Flores G, Duarte Lisci G, Herrera Suárez T, Macías-Rubalcava ML. Phytotoxic and antimicrobial activity of volatile and semi-volatile organic compounds from the endophyte Hypoxylon anthochroum strain Blaci isolated from Bursera lancifolia (Burseraceae). J Appl Microbiol 2017; 121:380-400. [PMID: 27159426 DOI: 10.1111/jam.13174] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Revised: 04/09/2016] [Accepted: 05/03/2016] [Indexed: 01/23/2023]
Abstract
AIMS To evaluate the phytotoxic, antifungal and antioomycete activity; and, determine the chemical composition of the volatile organic compounds (VOCs) and semi-volatile metabolites produced by the endophyte Hypoxylon anthochroum strain Blaci isolated from Bursera lancifolia. METHODS AND RESULTS Based on its macro- and micro-morphological features, the strain Blaci was identified as Nodulisporium sp.; partial analysis of its ITS1-5.8-ITS2 ribosomal gene sequence revealed the identity of the teleomorphic stage of the fungus as H. anthochroum. Phytotoxic and antimicrobial activities of VOCs, and culture medium and mycelium organic extracts from H. anthochroum Blaci were determined by simple and multiple antagonism bioassays, and gas phase and agar dilution bioassays respectively. The volatile and semi-volatile metabolites were identified by gas chromatography-mass spectrometry. VOCs from a 5-day H. anthochroum strain Blaci culture caused the inhibition of seed germination, root elongation and seedling respiration on Amaranthus hypochondriacus, Panicum miliaceum, Trifolium pratense and Medicago sativa. In addition, extracts, phenylethyl alcohol and eucalyptol main compounds present in the VOCs and extract displayed a high phytotoxic activity, inhibiting the three physiological processes on the four test plants in a concentration-dependent manner. CONCLUSIONS The results revealed that H. anthochroum strain Blaci produces a mixture of VOCs. These VOCs showed a strong phytotoxic activity on seed germination, root elongation, and seedling respiration of four plants and slightly affected the growth of phytopathogenic fungi and oomycetes. Also, the culture medium and mycelium extracts of H. anthochroum showed a high phytotoxic activity on the four test plants and, generally, the culture medium extract was more phytotoxic than the mycelium extracts. SIGNIFICANCE AND IMPACT OF THE STUDY This work firstly reports the phytotoxic activity of volatile and semi-volatile compounds produced by the endophyte H. anthochroum strain Blaci on seed germination, root elongation, and seedling respiration of four different plants; consequently, these compounds could be useful in biocontrol of weeds and plant pathogens.
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Affiliation(s)
- Á Ulloa-Benítez
- Departamento de Productos Naturales, Instituto de Química, Universidad Nacional Autónoma de México (UNAM), Ciudad Universitaria, Delegación Coyoacán, México, DF, México
| | - Y M Medina-Romero
- Departamento de Productos Naturales, Instituto de Química, Universidad Nacional Autónoma de México (UNAM), Ciudad Universitaria, Delegación Coyoacán, México, DF, México
| | - R E Sánchez-Fernández
- Departamento de Productos Naturales, Instituto de Química, Universidad Nacional Autónoma de México (UNAM), Ciudad Universitaria, Delegación Coyoacán, México, DF, México
| | - P Lappe-Oliveras
- Departamento de Botánica, Instituto de Biología, Universidad Nacional Autónoma de México (UNAM), Ciudad Universitaria, Delegación Coyoacán, México, DF, México
| | - G Roque-Flores
- Departamento de Productos Naturales, Instituto de Química, Universidad Nacional Autónoma de México (UNAM), Ciudad Universitaria, Delegación Coyoacán, México, DF, México
| | - G Duarte Lisci
- Facultad de Química, Unidad de Servicios de Apoyo a la Investigación, Universidad Nacional Autónoma de México (UNAM), Ciudad Universitaria, Delegación Coyoacán, México, DF, México
| | - T Herrera Suárez
- Departamento de Botánica, Instituto de Biología, Universidad Nacional Autónoma de México (UNAM), Ciudad Universitaria, Delegación Coyoacán, México, DF, México
| | - M L Macías-Rubalcava
- Departamento de Productos Naturales, Instituto de Química, Universidad Nacional Autónoma de México (UNAM), Ciudad Universitaria, Delegación Coyoacán, México, DF, México
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Siridechakorn I, Yue Z, Mittraphab Y, Lei X, Pudhom K. Identification of spirobisnaphthalene derivatives with anti-tumor activities from the endophytic fungus Rhytidhysteron rufulum AS21B. Bioorg Med Chem 2017; 25:2878-2882. [PMID: 28274675 DOI: 10.1016/j.bmc.2017.02.054] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2017] [Revised: 02/23/2017] [Accepted: 02/24/2017] [Indexed: 11/25/2022]
Abstract
The cultivation of the mangrove-derived fungus Rhytidhysteron rufulum AS21B in acidic condition changed its secondary metabolite profile. Investigation of the culture broth extract led to the isolation and identification of two new spirobisnaphthalenes (1 and 2) together with eleven known compounds (3-13) from the crude extract of the fungus grown under an acidic condition as well as six known compounds (4, 10, 14-17) were isolated from the crude extract of the fungus grown under a neutral condition. Their structures were elucidated on the basis of extensive spectroscopic data. The isolated compounds were evaluated for their cytotoxicity against two human cancer cell lines, Ramos lymphoma and drug resistant NSCLC H1975. Compounds 2 and 10 displayed the most promising anti-tumor activity against both cancer cell lines.
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Affiliation(s)
- Ittipon Siridechakorn
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, Department of Chemical Biology, College of Chemistry and Molecular Engineering, Synthetic and Functional Biomolecules Center, and Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China
| | - Zongwei Yue
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, Department of Chemical Biology, College of Chemistry and Molecular Engineering, Synthetic and Functional Biomolecules Center, and Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China
| | - Yanisa Mittraphab
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Xiaoguang Lei
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, Department of Chemical Biology, College of Chemistry and Molecular Engineering, Synthetic and Functional Biomolecules Center, and Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China
| | - Khanitha Pudhom
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand.
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Two new polyketides from the ascomycete fungus Leptosphaeria sp. J Antibiot (Tokyo) 2017; 70:743-746. [PMID: 28196973 DOI: 10.1038/ja.2017.5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Revised: 12/13/2016] [Accepted: 12/26/2016] [Indexed: 11/08/2022]
Abstract
Leptosphaerins H and I (1 and 2), two new xanthone derivatives, and six known compounds, leptosphaerin F (3), monodictysin B (4), norlichexanthone (5), leptosphaerin D (6), moniliphenone (7) and emodinbianthrone (8) have been isolated from a scale-up fermentation of the ascomycete fungus Leptosphaeria sp. Their structures were primarily elucidated by interpretation of NMR spectroscopic data. The absolute configuration of 1 was assigned using the modified Mosher method, whereas that of C-8a in 2 was determined via the CD data. Compound 6 showed modest cytotoxicity against a panel of three human tumor cell lines.
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Chen S, Chen D, Cai R, Cui H, Long Y, Lu Y, Li C, She Z. Cytotoxic and Antibacterial Preussomerins from the Mangrove Endophytic Fungus Lasiodiplodia theobromae ZJ-HQ1. JOURNAL OF NATURAL PRODUCTS 2016; 79:2397-2402. [PMID: 27560695 DOI: 10.1021/acs.jnatprod.6b00639] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Two new chlorinated preussomerins, chloropreussomerins A and B (1 and 2), together with nine known preussomerin analogues, 3-11, were obtained from the endophytic fungus Lasiodiplodia theobromae ZJ-HQ1. Their structures were elucidated by a combination of spectroscopic analyses. The absolute configurations of 1 and 2 were both determined by single-crystal X-ray diffraction using Cu Kα radiation. Chloropreussomerins A and B (1 and 2) are the first chlorinated compounds in the preussomerin family, and preussomerin M (3) is reported for the first time as a natural product. Compounds 1 and 2 showed potent in vitro cytotoxicity against A549 and MCF-7 human cancer cell lines, with IC50 values ranging from 5.9 to 8.9 μM, and compounds 4-7 exhibited significant bioactivity against A549, HepG2, and MCF-7 human cancer cell lines, with IC50 values of 2.5-9.4 μM. In the antibacterial assay, compounds 1, 2, 5-7, and 11 exhibited significant activities against Staphylococcus aureus, with MIC values between 1.6 and 13 μg/mL.
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Affiliation(s)
| | | | | | | | - Yuhua Long
- School of Chemistry and Environment, South China Normal University , Guangzhou 510006, People's Republic of China
| | | | - Chunyuan Li
- College of Materials and Energy, South China Agricultural University , Guangzhou 510642, People's Republic of China
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25
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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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26
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Total Synthesis and Antifungal Activity of Palmarumycin CP17 and Its Methoxy Analogues. Molecules 2016; 21:molecules21050600. [PMID: 27164077 PMCID: PMC6274023 DOI: 10.3390/molecules21050600] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 05/03/2016] [Accepted: 05/04/2016] [Indexed: 12/03/2022] Open
Abstract
Total synthesis of naturally occurring spirobisnaphthalene palmarumycin CP17 and its methoxy analogues was first achieved through Friedel-Crafts acylation, Wolff-Kishner reduction, intramolecular cyclization, ketalization, benzylic oxidation, and demethylation using the inexpensive and readily available methoxybenzene, 1,2-dimethoxybenzene and 1,4-dimethoxybenzene and 1,8-dihydroxynaphthalene as raw materials. Demethylation with (CH3)3SiI at ambient temperature resulted in ring A aromatization and acetal cleavage to give rise to binaphthyl ethers. The antifungal activities of these spirobisnaphthalene derivatives were evaluated, and the results revealed that 5 and 9b exhibit EC50 values of 9.34 µg/mL and 12.35 µg/mL, respectively, against P. piricola.
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27
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Sánchez-Ortiz BL, Sánchez-Fernández RE, Duarte G, Lappe-Oliveras P, Macías-Rubalcava ML. Antifungal, anti-oomycete and phytotoxic effects of volatile organic compounds from the endophytic fungus Xylaria sp. strain PB3f3 isolated from Haematoxylon brasiletto. J Appl Microbiol 2016; 120:1313-25. [PMID: 26920072 DOI: 10.1111/jam.13101] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Revised: 02/04/2016] [Accepted: 02/13/2016] [Indexed: 11/30/2022]
Abstract
AIMS To determine the antifungal, anti-oomycete and phytotoxic activity; and chemical composition of the volatile organic compounds (VOCs) produced by endophytic fungus Xylaria sp. PB3f3 isolated from Haematoxylon brasiletto Karst. METHODS AND RESULTS Bioactivity and chemical composition of the VOCs from Xylaria sp. PB3f3 were established by using simple and multiple antagonism bioassays, and gas chromatography/mass spectrometry, respectively. The results showed that Xylaria sp. PB3f3 inhibited the growth of the oomycetes Pythium aphanidermatum (78·3%), Phytophthora capsici (48·3%), and the fungi Alternaria solani (24·5%) and Fusarium oxysporum (24·2%), in multiple antagonism bioassays. Volatile organic compounds, produced at 20 and 30 days of fungal growth, inhibited root elongation on Amaranthus hypochondriacus (27·6%) and on Solanum lycopersicum (53·2%). Forty VOCs were identified at 10, 20 and 30 days in Xylaria sp. PB3f3 cultures. The compounds with the highest fibre affinity were: 3-methyl-1-butanol and thujopsene, at 10 days of fungal growth; an unidentified amine and 2-methyl-1-butanol at 20 days; and 2-methyl-1-propanol at 30 days. In the gas phase assay method 2-methyl-1-propanol and 2-methyl-1-butanol showed significant inhibitory effects on root elongation and germination of Am. hypochondriacus and S. lycopersicum. CONCLUSIONS Xylaria sp. PB3f3 and its VOCs showed significant phytotoxic effects on root elongation and germination of Am. hypochondriacus and S. lycopersicum. SIGNIFICANCE AND IMPACT OF THE STUDY The genus Xylaria produces a great variety of secondary metabolites, but, up date, there are no reports of the identification of bioactive volatile compounds. Thus, Xylaria sp. PB3f3 and its VOCs are a possible candidate for the biological control of weeds.
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Affiliation(s)
- B L Sánchez-Ortiz
- Instituto de Química, Departamento de Productos Naturales, Universidad Nacional Autónoma de México (UNAM), Ciudad Universitaria, Coyoacán, México
| | - R E Sánchez-Fernández
- Instituto de Química, Departamento de Productos Naturales, Universidad Nacional Autónoma de México (UNAM), Ciudad Universitaria, Coyoacán, México
| | - G Duarte
- Facultad de Química, Unidad de Servicios de Apoyo a la Investigación, Universidad Nacional Autónoma de México (UNAM), Ciudad Universitaria, Coyoacán, México
| | - P Lappe-Oliveras
- Instituto de Biología, Departamento de Botánica, Universidad Nacional Autónoma de México (UNAM), Ciudad Universitaria, Coyoacán, México
| | - M L Macías-Rubalcava
- Instituto de Química, Departamento de Productos Naturales, Universidad Nacional Autónoma de México (UNAM), Ciudad Universitaria, Coyoacán, México
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28
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Chokpaiboon S, Choodej S, Boonyuen N, Teerawatananond T, Pudhom K. Highly oxygenated chromones from mangrove-derived endophytic fungus Rhytidhysteron rufulum. PHYTOCHEMISTRY 2016; 122:172-177. [PMID: 26712613 DOI: 10.1016/j.phytochem.2015.12.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Revised: 12/04/2015] [Accepted: 12/14/2015] [Indexed: 06/05/2023]
Abstract
Five highly oxygenated chromones, rhytidchromones A-E, were isolated from the culture broth of a mangrove-derived endophytic fungus, Rhytidhysteron rufulum, isolated from Thai Bruguiera gymnorrhiza. Their structures were determined by analysis of 1D and 2D NMR spectroscopic data. The structure of rhytidchromone A was further confirmed by single-crystal X-ray diffraction analysis. These compounds were evaluated for cytotoxicity against four cancer cell lines (MCF-7, Hep-G2, Kato-3 and CaSki). All compounds, except for rhytidchromone D, displayed cytotoxicity against Kato-3 cell lines with IC50 values ranging from 16.0 to 23.3μM, while rhytidchromones A and C were active against MCF-7 cells with IC50 values of 19.3 and 17.7μM, respectively.
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Affiliation(s)
- Supichar Chokpaiboon
- Program in Biotechnology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Siwattra Choodej
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Nattawut Boonyuen
- National Center for Genetic Engineering and Biotechnology (BIOTEC), 113 Thailand Science Park, Pathumthani 12120, Thailand
| | - Thapong Teerawatananond
- Faculty of Science and Technology, Valaya Alongkorn Rajabhat University under Royal Patronage, Pathumtani 13138, Thailand
| | - Khanitha Pudhom
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand.
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29
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Chagas FO, Caraballo-Rodriguez AM, Pupo MT. Endophytic Fungi as a Source of Novel Metabolites. Fungal Biol 2015. [DOI: 10.1007/978-1-4939-2531-5_8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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30
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Babula P, Vaverkova V, Poborilova Z, Ballova L, Masarik M, Provaznik I. Phytotoxic action of naphthoquinone juglone demonstrated on lettuce seedling roots. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2014; 84:78-86. [PMID: 25240266 DOI: 10.1016/j.plaphy.2014.08.027] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2014] [Accepted: 08/20/2014] [Indexed: 06/03/2023]
Abstract
Juglone, 5-hydroxy-1,4-naphthoquinone, is the plant secondary metabolite with allelopathic properties, which was isolated especially from the plant species belonging to family Juglandaceae A. Rich. ex Kunth (walnut family). The mechanism of phytotoxic action of juglone was investigated on lettuce seedlings Lactuca sativa L. var. capitata L. cv. Merkurion by determining its effect at different levels. We have found that juglone inhibits mitosis (mitotic index 8.5 ± 0.6% for control versus 2.2 ± 0.9% for 250 μM juglone), changes mitotic phase index with accumulation of the cells in prophase (56.5 ± 2.6% for control versus 85.3 ± 5.0% for 250 μM juglone), and decreases meristematic activity in lettuce root tips (51.07 ± 3.62% for control versus 5.27 ± 2.29% for 250 μM juglone). In addition, juglone induced creation of reactive oxygen species and changed levels of reactive nitrogen species. Amount of malondialdehyde, a product of lipid peroxidation, increased from 24.0 ± 4.0 ng g(-1) FW for control to 55.5 ± 5.4 ng g(-1) FW for 250 μM juglone. We observed also changes in cellular structure, especially changes in the morphology of endoplasmic reticulum. Reactive oxygen species induced damage of plasma membrane. All these changes resulted in the disruption of the mitochondrial membrane potential, increase in free intracellular calcium ions, and DNA fragmentation and programmed cell death that was revealed by two methods, TUNEL test and DNA electrophoresis. The portion of TUNEL-positive cells increase from 0.96 ± 0.5% for control to 7.66 ± 1.5% for 250 μM juglone. Results of the study indicate complex mechanism of phytotoxic effect of juglone in lettuce root tips and may indicate mechanism of allelopathic activity of this compound.
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Affiliation(s)
- Petr Babula
- Department of Natural Drugs, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, Palackeho 1/3, CZ-61242 Brno, Czech Republic; International Clinical Research Center - Biomedical Engineering Center, St. Anne's University Hospital Brno, Pekarska 53, Brno, CZ-656 91, Czech Republic.
| | - Veronika Vaverkova
- Department of Natural Drugs, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, Palackeho 1/3, CZ-61242 Brno, Czech Republic
| | - Zuzana Poborilova
- Department of Natural Drugs, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, Palackeho 1/3, CZ-61242 Brno, Czech Republic
| | - Ludmila Ballova
- Department of Natural Drugs, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, Palackeho 1/3, CZ-61242 Brno, Czech Republic
| | - Michal Masarik
- Department of Pathological Physiology, Faculty of Medicine, Masaryk University, Kamenice 5, CZ-625 00 Brno, Czech Republic
| | - Ivo Provaznik
- International Clinical Research Center - Biomedical Engineering Center, St. Anne's University Hospital Brno, Pekarska 53, Brno, CZ-656 91, Czech Republic; Department of Biomedical Engineering, Brno University of Technology, Kolejni 4, Brno, CZ-612 00, Czech Republic
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Selected phytotoxins and organic extracts from endophytic fungus Edenia gomezpompae as light reaction of photosynthesis inhibitors. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2014; 138:17-26. [DOI: 10.1016/j.jphotobiol.2014.05.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Revised: 04/29/2014] [Accepted: 05/05/2014] [Indexed: 11/18/2022]
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