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Xiao D, Wang Y, Gao C, Zhang X, Feng W, Lu X, Feng B. A New Quinazolinone Alkaloid along with Known Compounds with Seed-Germination-Promoting Activity from Rhodiola tibetica Endophytic Fungus Penicillium sp. HJT-A-6. Molecules 2024; 29:2112. [PMID: 38731603 PMCID: PMC11085523 DOI: 10.3390/molecules29092112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 04/28/2024] [Accepted: 04/29/2024] [Indexed: 05/13/2024] Open
Abstract
A new quinazolinone alkaloid named peniquinazolinone A (1), as well as eleven known compounds, 2-(2-hydroxy-3-phenylpropionamido)-N-methylbenzamide (2), viridicatin (3), viridicatol (4), (±)-cyclopeptin (5a/5b), dehydrocyclopeptin (6), cyclopenin (7), cyclopenol (8), methyl-indole-3-carboxylate (9), 2,5-dihydroxyphenyl acetate (10), methyl m-hydroxyphenylacetate (11), and conidiogenone B (12), were isolated from the endophytic Penicillium sp. HJT-A-6. The chemical structures of all the compounds were elucidated by comprehensive spectroscopic analysis, including 1D and 2D NMR and HRESIMS. The absolute configuration at C-13 of peniquinazolinone A (1) was established by applying the modified Mosher's method. Compounds 2, 3, and 7 exhibited an optimal promoting effect on the seed germination of Rhodiola tibetica at a concentration of 0.01 mg/mL, while the optimal concentration for compounds 4 and 9 to promote Rhodiola tibetica seed germination was 0.001 mg/mL. Compound 12 showed optimal seed-germination-promoting activity at a concentration of 0.1 mg/mL. Compared with the positive drug 6-benzyladenine (6-BA), compounds 2, 3, 4, 7, 9, and 12 could extend the seed germination period of Rhodiola tibetica up to the 11th day.
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Affiliation(s)
| | | | | | | | | | - Xuan Lu
- College of Life and Health, Dalian University, Dalian 116622, China; (D.X.); (Y.W.); (C.G.); (X.Z.); (W.F.)
| | - Baomin Feng
- College of Life and Health, Dalian University, Dalian 116622, China; (D.X.); (Y.W.); (C.G.); (X.Z.); (W.F.)
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2
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Zhao S, Jing Z. New pimarane diterpenoids with antibacterial activity from fungus Arthrinium sp. ZS03. Chin J Nat Med 2024; 22:356-364. [PMID: 38658098 DOI: 10.1016/s1875-5364(24)60629-1] [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: 07/29/2023] [Indexed: 04/26/2024]
Abstract
A comprehensive chemical study of the endophytic fungus Arthrinium sp. ZS03, associated with Acorus tatarinowii Schott, yielded eleven pimarane diterpenoids (compounds 1-11), including seven novel compounds designated arthrinoids A-G (1-7). The determination of their structures and absolute configurations was achieved through extensive spectroscopic techniques, quantum chemical calculations of electronic circular dichroism (ECD), and single-crystal X-ray diffraction analysis. Furthermore, 7 demonstrated inhibitory activity against Klebsiella pneumoniae, comparable to the reference antibiotic amikacin, with a minimum inhibitory concentration (MIC) of 8 μg·mL-1.
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Affiliation(s)
- Songfeng Zhao
- Department of Pharmacy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Ziwei Jing
- Department of Pharmacy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China.
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Qin X, Xu J, An X, Yang J, Wang Y, Dou M, Wang M, Huang J, Fu Y. Insight of endophytic fungi promoting the growth and development of woody plants. Crit Rev Biotechnol 2024; 44:78-99. [PMID: 36592988 DOI: 10.1080/07388551.2022.2129579] [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: 01/29/2022] [Revised: 04/04/2022] [Accepted: 04/16/2022] [Indexed: 01/04/2023]
Abstract
Microorganisms play an important role in plant growth and development. In particular, endophytic fungi is one of the important kinds of microorganisms and has a mutually beneficial symbiotic relationship with host plants. Endophytic fungi have many substantial benefits to host plants, especially for woody plants, such as accelerating plant growth, enhancing stress resistance, promoting nutrient absorption, resisting pathogens and etc. However, the effects of endophytic fungi on the growth and development of woody plants have not been systematically summarized. In this review, the functions of endophytic fungi for the growth and development of woody plants have been mainly reviewed, including regulating plant growth (e.g., flowering, root elongation, etc.) by producing nutrients and plant hormones, and improving plant disease, insect resistance and heavy metal resistance by producing secondary metabolites. In addition, the diversity of endophytic fungi could improve the ability of woody plants to adapt to adverse environment. The components produced by endophytic fungi have excellent potential for the growth and development of woody plants. This review has systematically discussed the potential regulation mechanism of endophytic fungi regulating the growth and development of woody plants, it would be of great significance for the development and utilization of endophytic fungi resource from woody plants for the protection of forest resources.
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Affiliation(s)
- Xiangyu Qin
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, PR China
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, PR China
| | - Jian Xu
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, PR China
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, PR China
| | - Xiaoli An
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, PR China
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, PR China
| | - Jie Yang
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, PR China
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, PR China
| | - Yao Wang
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, PR China
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, PR China
| | - Meijia Dou
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, PR China
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, PR China
| | - Minggang Wang
- The College of Forestry, Beijing Forestry University, Beijing, PR China
| | - Jin Huang
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, PR China
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, PR China
| | - Yujie Fu
- The College of Forestry, Beijing Forestry University, Beijing, PR China
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4
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Nguyen GT, Nguyen HTH, Tran HT, Tran HT, Ho AN, Tran QH, Pham NB. Enhanced podophyllotoxin production of endophyte Fusarium proliferatum TQN5T by host extract and phenylalanine. Appl Microbiol Biotechnol 2023:10.1007/s00253-023-12659-1. [PMID: 37436482 DOI: 10.1007/s00253-023-12659-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 06/16/2023] [Accepted: 06/21/2023] [Indexed: 07/13/2023]
Abstract
Fermentation technology using endophytes is considered a potential alternative approach for producing pharmaceutical compounds like podophyllotoxin (PTOX). In this study, fungus TQN5T (VCCM 44284) was selected from endophytic fungi isolated from Dysosma versipellis in Vietnam for PTOX production through TLC. The presence of PTOX in TQN5T was further confirmed by HPLC. Molecular identification indicated TQN5T as Fusarium proliferatum with 99.43% identity. This result was asserted by morphological characteristics such as white cottony, filamentous colony, layer and branched mycelium, and clear hyphae septa. Cytotoxic assay indicated both biomass extract and culture filtrate of TQN5T presented strong cytotoxicity on LU-1 and HepG2 with IC50 of 0.11, 0.20, 0.041, and 0071, respectively, implying anti-cancer compounds were accumulated in the mycelium and secreted into the medium. Further, the production of PTOX in TQN5T was investigated in the fermentation condition supplemented with 10 µg/ml of host plant extract or phenylalanine as elicitors. The results revealed a significantly higher amount of PTOX in the PDB + PE and PDB + PA at all studied time points in comparison with PDB (control). Especially, after 168 h of culture, PTOX content in the PDB with plant extract reached the peak with 314 µg/g DW which is 10% higher than the best yield of PTOX in previous studies, denoting F. proliferatum TQN5T as a promising PTOX producer. This is the first study on enhancing the PTOX production in endophytic fungi by supplementing phenylalanine-a precursor for PTOX biosynthesis in plants into fermented media, suggesting a common PTOX biosynthetic pathway between host plant and endophytes. KEY POINTS: • Fusarium proliferatum TQN5T was proven for PTOX production. • Both mycelia extract and spent broth extract of Fusarium proliferatum TQN5T presented strong cytotoxicity on cancer cell lines LU-1 and HepG2. • The supplementation of 10 µg/ml host plant extract and phenylalanine into fermentation media of F. proliferatum TQN5T improved the yield of PTOX.
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Affiliation(s)
- Giang Thu Nguyen
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Ha Thi Hong Nguyen
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Hoa Thi Tran
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Huyen Thi Tran
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Anh Ngoc Ho
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Quang Ho Tran
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Ngoc Bich Pham
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam.
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam.
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5
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Rutkowska N, Drożdżyński P, Ryngajłło M, Marchut-Mikołajczyk O. Plants as the Extended Phenotype of Endophytes-The Actual Source of Bioactive Compounds. Int J Mol Sci 2023; 24:10096. [PMID: 37373241 DOI: 10.3390/ijms241210096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 06/07/2023] [Accepted: 06/12/2023] [Indexed: 06/29/2023] Open
Abstract
For thousands of years, plants have been used for their medicinal properties. The industrial production of plant-beneficial compounds is facing many drawbacks, such as seasonal dependence and troublesome extraction and purification processes, which have led to many species being on the edge of extinction. As the demand for compounds applicable to, e.g., cancer treatment, is still growing, there is a need to develop sustainable production processes. The industrial potential of the endophytic microorganisms residing within plant tissues is undeniable, as they are often able to produce, in vitro, similar to or even the same compounds as their hosts. The peculiar conditions of the endophytic lifestyle raise questions about the molecular background of the biosynthesis of these bioactive compounds in planta, and the actual producer, whether it is the plant itself or its residents. Extending this knowledge is crucial to overcoming the current limitations in the implementation of endophytes for larger-scale production. In this review, we focus on the possible routes of the synthesis of host-specific compounds in planta by their endophytes.
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Affiliation(s)
- Natalia Rutkowska
- Institute of Molecular and Industrial Biotechnology, Lodz University of Technology, Stefanowskiego 2/22, 90-537 Lodz, Poland
| | - Piotr Drożdżyński
- Institute of Molecular and Industrial Biotechnology, Lodz University of Technology, Stefanowskiego 2/22, 90-537 Lodz, Poland
| | - Małgorzata Ryngajłło
- Institute of Molecular and Industrial Biotechnology, Lodz University of Technology, Stefanowskiego 2/22, 90-537 Lodz, Poland
| | - Olga Marchut-Mikołajczyk
- Institute of Molecular and Industrial Biotechnology, Lodz University of Technology, Stefanowskiego 2/22, 90-537 Lodz, Poland
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6
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Mohamed NZ, Shaban L, Safan S, El-Sayed ASA. Physiological and metabolic traits of Taxol biosynthesis of endophytic fungi inhabiting plants: Plant-microbial crosstalk, and epigenetic regulators. Microbiol Res 2023; 272:127385. [PMID: 37141853 DOI: 10.1016/j.micres.2023.127385] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 04/08/2023] [Accepted: 04/09/2023] [Indexed: 05/06/2023]
Abstract
Attenuating the Taxol productivity of fungi with the subculturing and storage under axenic conditions is the challenge that halts the feasibility of fungi to be an industrial platform for Taxol production. This successive weakening of Taxol productivity by fungi could be attributed to the epigenetic down-regulation and molecular silencing of most of the gene clusters encoding Taxol biosynthetic enzymes. Thus, exploring the epigenetic regulating mechanisms controlling the molecular machinery of Taxol biosynthesis could be an alternative prospective technology to conquer the lower accessibility of Taxol by the potent fungi. The current review focuses on discussing the different molecular approaches, epigenetic regulators, transcriptional factors, metabolic manipulators, microbial communications and microbial cross-talking approaches on restoring and enhancing the Taxol biosynthetic potency of fungi to be industrial platform for Taxol production.
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Affiliation(s)
- Nabil Z Mohamed
- Enzymology and Fungal Biotechnology Lab, Botany and Microbiology Department, Faculty of Science, Zagazig University, Zagazig 44519, Egypt
| | - Lamis Shaban
- Enzymology and Fungal Biotechnology Lab, Botany and Microbiology Department, Faculty of Science, Zagazig University, Zagazig 44519, Egypt.
| | - Samia Safan
- Enzymology and Fungal Biotechnology Lab, Botany and Microbiology Department, Faculty of Science, Zagazig University, Zagazig 44519, Egypt
| | - Ashraf S A El-Sayed
- Enzymology and Fungal Biotechnology Lab, Botany and Microbiology Department, Faculty of Science, Zagazig University, Zagazig 44519, Egypt.
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7
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Mulyani Y, Sinaga SE, Supratman U. Phytochemistry and Biological Activities of Endophytic Fungi from the Meliaceae Family. MOLECULES (BASEL, SWITZERLAND) 2023; 28:molecules28020778. [PMID: 36677833 PMCID: PMC9863112 DOI: 10.3390/molecules28020778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/28/2022] [Accepted: 01/10/2023] [Indexed: 01/15/2023]
Abstract
Meliaceae plants are found worldwide in tropical or subtropical climates. They are important ethnobotanically as sources of traditional medicine, with 575 species and 51 genera. Previous research found that microorganisms are plant pioneers to produce secondary metabolites with diverse compound structures and bioactivities. Several plants of the Meliaceae family contain secondary metabolites isolated from endophytic fungi. Furthermore, related articles from 2002 to 2022 were collected from SciFinder, Google Scholar, and PubMed. About 276 compounds were isolated from endophytic fungi such as terpenoids, polyketides, lactones, pyrones, quinone, anthraquinones, xanthones, coumarines, isocoumarines, resorcylic acid lactones, cytochalasins, aromatics, ester, quinols, alkaloids, nitro compound, fatty acids, and sugars with bioactivities such as antioxidant, antibacterial, antifungal, anti-influenza, neuroprotective activities, anti-HIV, cytotoxic, allelopathic, anti-inflammatory, antifeedant effects, and BSLT toxicity. Meanwhile, secondary metabolites isolated from endophytic fungi were reported as one of the sources of active compounds for medicinal chemistry. This comprehensive review summarizes the ethnobotanical uses and secondary metabolites derived from Meliaceae endophytic fungi.
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Affiliation(s)
- Yeni Mulyani
- Department of Chemistry, Faculty of Mathematic and Natural Sciences, Universitas Padjadjaran, Sumedang 45363, Indonesia
- Department of Marine Science, Faculty of Fisheries and Marine Science, Universitas Padjadjaran, Sumedang 45363, Indonesia
| | | | - Unang Supratman
- Department of Chemistry, Faculty of Mathematic and Natural Sciences, Universitas Padjadjaran, Sumedang 45363, Indonesia
- Central Laboratory, Universitas Padjadjaran, Sumedang 45363, Indonesia
- Correspondence: ; Tel.: +62-22-779-4391
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8
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Kalia VC, Gong C, Shanmugam R, Lee JK. Prospecting Microbial Genomes for Biomolecules and Their Applications. Indian J Microbiol 2022; 62:516-523. [PMID: 36458216 PMCID: PMC9705627 DOI: 10.1007/s12088-022-01040-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 09/04/2022] [Indexed: 11/26/2022] Open
Abstract
Bioactive molecules of microbial origin are finding increasing biotechnological applications. Their sources range from the terrestrial, marine, and endophytic to the human microbiome. These biomolecules have unique chemical structures and related groups, which enable them to improve the efficiency of the bioprocesses. This review focuses on the applications of biomolecules in bioremediation, agriculture, food, pharmaceutical industries, and human health.
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Affiliation(s)
- Vipin Chandra Kalia
- Department of Chemical Engineering, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul, 05029 Republic of Korea
| | - Chunjie Gong
- National “111” Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei University of Technology, Wuhan, 430068 People’s Republic of China
| | - Ramasamy Shanmugam
- Department of Chemical Engineering, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul, 05029 Republic of Korea
| | - Jung-Kul Lee
- Department of Chemical Engineering, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul, 05029 Republic of Korea
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Taxoid profile in endophytic fungi isolated from Corylus avellana, introduces potential source for the production of Taxol in semi-synthetic approaches. Sci Rep 2022; 12:9390. [PMID: 35672438 PMCID: PMC9174271 DOI: 10.1038/s41598-022-13602-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Accepted: 05/16/2022] [Indexed: 11/23/2022] Open
Abstract
Taxol (Paclitaxel) and its derivative taxanes are widely used in chemotherapy and treatment of different types of cancer. Although the extracted taxanes from Taxus sp. are currently used in semi-synthetic production of Taxol, providing alternative always available sources is still a main concern. Due to availability and fast growth rate, microorganisms are much potent alternative sources for taxanes. In the present study, 249 endophytic fungi were isolated from Corylus avellana at six different locations of Iran, among which 18 species were capable to produce taxanes. Genotyping analysis indicated that 17 genera were ascomycetes but only one basidiomycete. Seven taxanes were detected and quantified in solid and suspension cultures by HPLC and their structures were confirmed by LC-Mass analysis. Among endophytes, CA7 had all 7 taxoids and CA1 had the highest Taxol yield. In 78% of endophytes transferring to liquid media was accompanied by increase of taxanes yield and increased taxan production and its release to media up to 90%. Evaluation of cytotoxicity indicated that extracts of all isolated fungi were lethal to MCF7 cells. Since endophytes produced remarkable amounts of taxanes, they can be suggested as alternative inexpensive and easily available resources for Taxol production in semi-synthesis plans.
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Xie F, Li HT, Chen JY, Duan HJ, Xia DD, Sun Y, Gao YH, Zhou H, Ding ZT. Talarophilone, a ring-opened azaphilone from the endophytic fungus Talaromyces sp. YUD18002. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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11
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Xia JN, Hu K, Su XZ, Tang JW, Li XN, Sun HD, Puno PT. Discovery of ent-Kaurane Diterpenoids, characteristic metabolites of Isodon species, from an Endophytic fungal strain Geopyxis sp. XY93 inhabiting Isodon parvifolia. Fitoterapia 2022; 158:105160. [PMID: 35182695 DOI: 10.1016/j.fitote.2022.105160] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 02/09/2022] [Accepted: 02/14/2022] [Indexed: 11/28/2022]
Abstract
Isogeopyxins A-C (1-3), three new diterpenoids with ent-kaurane, ent-pimarane, and ent-abietane scaffolds, respectively, along with six known ent-kauranoids, were isolated from the fermentation culture of Geopyxis sp. XY93 inhabiting the leaves of Isodon parvifolia. Their structures were elucidated by interpretation of spectroscopic data, and single crystal X-ray diffraction. It marks the first time that ent-kauranoids, characteristic metabolites of Isodon species, have been isolated from an associated endophytic fungus.
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Affiliation(s)
- Jiang-Nan Xia
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming, 650201, People's Republic of China; University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Kun Hu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming, 650201, People's Republic of China.
| | - Xiao-Zheng Su
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming, 650201, People's Republic of China; University of Chinese Academy of Sciences, Beijing 100049, 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, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming, 650201, 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, and Yunnan Key Laboratory of Natural Medicinal Chemistry, 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, and Yunnan Key Laboratory of Natural Medicinal Chemistry, 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, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming, 650201, People's Republic of China.
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Galindo-Solís JM, Fernández FJ. Endophytic Fungal Terpenoids: Natural Role and Bioactivities. Microorganisms 2022; 10:microorganisms10020339. [PMID: 35208794 PMCID: PMC8875210 DOI: 10.3390/microorganisms10020339] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 09/28/2021] [Accepted: 09/29/2021] [Indexed: 02/01/2023] Open
Abstract
Endophytic fungi are a highly diverse group of fungi that intermittently colonize all plants without causing symptoms of the disease. They sense and respond to physiological and environmental changes of their host plant and microbiome. The inter-organism interactions are largely driven by chemical networks mediated by specialized metabolites. The balance of these complex interactions leads to healthy and strong host plants. Endophytic strains have particular machinery to produce a plethora of secondary metabolites with a variety of bioactivities and unknown functions in an ecological niche. Terpenoids play a key role in endophytism and represent an important source of bioactive molecules for human health and agriculture. In this review, we describe the role of endophytic fungi in plant health, fungal terpenoids in multiple interactions, and bioactive fungal terpenoids recently reported from endophytes, mainly from plants used in traditional medicine, as well as from algae and mangroves. Additionally, we highlight endophytic fungi as producers of important chemotherapeutic terpenoids, initially discovered in plants. Despite advances in understanding endophytism, we still have much to learn in this field. The study of the role, the evolution of interactions of endophytic fungi and their terpenoids provide an opportunity for better applications in human health and agriculture.
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Affiliation(s)
- Juan M. Galindo-Solís
- Posgrado en Biotecnología, Universidad Autonoma Metropolitana, Unidad Iztapalapa, Mexico City CP 09340, Mexico;
| | - Francisco J. Fernández
- Departamento de Biotecnología, Universidad Autónoma Metropolitana, Unidad Iztapalapa, San Rafael Atlixco No. 186, Col. Vicentina, Mexico City CP 09340, Mexico
- Correspondence: ; Tel.: +52-(55)-5804-6453
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Fungi: Essential Elements in the Ecosystems. Fungal Biol 2022. [DOI: 10.1007/978-3-030-89664-5_2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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14
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Metabolites from Induratia spp. modulating key enzymes in human hemostasis. Arch Microbiol 2021; 204:27. [DOI: 10.1007/s00203-021-02682-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 10/25/2021] [Accepted: 10/27/2021] [Indexed: 10/19/2022]
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Isolation of Taxol and Flavin-like fluorochrome from Endophytic Fungi of Mangifera indica. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2021. [DOI: 10.22207/jpam.15.4.43] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Scouting for novel and plant-derived biomolecules from endophytic microbial sources draws greater focus on the discovery of novel bioactive metabolites. With this rationale, we scouted the endophytic fungi for taxol, an anticancer diterpenoid and fluorescent biomolecules. In the present study, about 31 endophytic fungal isolates recovered from the Mangifera indica leaves were screened for taxol production in M1D medium. About five isolates were shortlisted based on the thin layer chromatographic analysis of the fungal extracts. Among them Colletotrichum sp. MIP-5 has been identified as a producer of fungal taxol based on UV, FTIR, TLC and HPLC analysis. The partially purified fungal taxol showed similar spectral and chromatographic features of commercially available paclitaxel. In addition to this, we also report the production of a fluorescent compound by Penicillium sp. MIP-3. The Flavin-like compound exhibited a bright greenish-yellow fluorescence with an emission maximum in the range of 505 – 545nm. GC-MS analysis showed the occurrence of Latia luciferin, primarily associated with the bioluminescence of freshwater limpet Latia neritoides. This is the first report of this compound from Penicillium sp. In addition, therapeutically active steroid (β-Sitosterol, Stigmasterol, Campesterol), quinones (Benzo[h]quinoline, 2,4-dimethyl-) and phloroglucinol (Aspidinol) derivatives were also identified from Penicillium sp. MIP-3 based on GC-MS analysis. These molecules could potentially be used in biological and pharmaceutical applications in future.
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16
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New cytochalasan alkaloids and cyclobutane dimer from an endophytic fungus Cytospora chrysosperma in Hippophae rhamnoides and their antimicrobial activities. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153207] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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17
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Wang JF, Huang R, Liu SS, Wu SH. Antimicrobial Cytochalasan Alkaloids from an Endophytic Fungus Chaetomium globosum. Chem Nat Compd 2021. [DOI: 10.1007/s10600-021-03579-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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18
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Raihan T, Rabbee MF, Roy P, Choudhury S, Baek KH, Azad AK. Microbial Metabolites: The Emerging Hotspot of Antiviral Compounds as Potential Candidates to Avert Viral Pandemic Alike COVID-19. Front Mol Biosci 2021; 8:732256. [PMID: 34557521 PMCID: PMC8452873 DOI: 10.3389/fmolb.2021.732256] [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: 06/28/2021] [Accepted: 08/23/2021] [Indexed: 12/15/2022] Open
Abstract
The present global COVID-19 pandemic caused by the noble pleomorphic severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has created a vulnerable situation in the global healthcare and economy. In this pandemic situation, researchers all around the world are trying their level best to find suitable therapeutics from various sources to combat against the SARS-CoV-2. To date, numerous bioactive compounds from different sources have been tested to control many viral diseases. However, microbial metabolites are advantageous for drug development over metabolites from other sources. We herein retrieved and reviewed literatures from PubMed, Scopus and Google relevant to antiviral microbial metabolites by searching with the keywords "antiviral microbial metabolites," "microbial metabolite against virus," "microorganism with antiviral activity," "antiviral medicine from microbial metabolite," "antiviral bacterial metabolites," "antiviral fungal metabolites," "antiviral metabolites from microscopic algae' and so on. For the same purpose, the keywords "microbial metabolites against COVID-19 and SARS-CoV-2" and "plant metabolites against COVID-19 and SARS-CoV-2" were used. Only the full text literatures available in English and pertinent to the topic have been included and those which are not available as full text in English and pertinent to antiviral or anti-SARS-CoV-2 activity were excluded. In this review, we have accumulated microbial metabolites that can be used as antiviral agents against a broad range of viruses including SARS-CoV-2. Based on this concept, we have included 330 antiviral microbial metabolites so far available to date in the data bases and were previously isolated from fungi, bacteria and microalgae. The microbial source, chemical nature, targeted viruses, mechanism of actions and IC50/EC50 values of these metabolites are discussed although mechanisms of actions of many of them are not yet elucidated. Among these antiviral microbial metabolites, some compounds might be very potential against many other viruses including coronaviruses. However, these potential microbial metabolites need further research to be developed as effective antiviral drugs. This paper may provide the scientific community with the possible secret of microbial metabolites that could be an effective source of novel antiviral drugs to fight against many viruses including SARS-CoV-2 as well as the future viral pandemics.
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Affiliation(s)
- Topu Raihan
- Department of Genetic Engineering and Biotechnology, Shahjalal University of Science and Technology, Sylhet, Bangladesh
| | | | - Puja Roy
- Department of Genetic Engineering and Biotechnology, Shahjalal University of Science and Technology, Sylhet, Bangladesh
| | - Swapnila Choudhury
- Department of Genetic Engineering and Biotechnology, Jagannath University, Dhaka, Bangladesh
| | - Kwang-Hyun Baek
- Department of Biotechnology, Yeungnam University, Gyeongsan, South Korea
| | - Abul Kalam Azad
- Department of Genetic Engineering and Biotechnology, Shahjalal University of Science and Technology, Sylhet, Bangladesh
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19
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Mishra S, Sahu PK, Agarwal V, Singh N. Exploiting endophytic microbes as micro-factories for plant secondary metabolite production. Appl Microbiol Biotechnol 2021; 105:6579-6596. [PMID: 34463800 DOI: 10.1007/s00253-021-11527-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 08/12/2021] [Accepted: 08/15/2021] [Indexed: 01/19/2023]
Abstract
Plant secondary metabolites have significant potential applications in a wide range of pharmaceutical, food, and cosmetic industries by providing new chemistries and compounds. However, direct isolation of such compounds from plants has resulted in over-harvesting and loss of biodiversity, currently threatening several medicinal plant species to extinction. With the breakthrough report of taxol production by an endophytic fungus of Taxus brevifolia, a new era in natural product research was established. Since then, the ability of endophytic microbes to produce metabolites similar to those produced by their host plants has been discovered. The plant "endosphere" represents a rich and unique biological niche inhabited by organisms capable of producing a range of desired compounds. In addition, plants growing in diverse habitats and adverse environmental conditions represent a valuable reservoir for obtaining rare microbes with potential applications. Despite being an attractive and sustainable approach for obtaining economically important metabolites, the industrial exploitation of microbial endophytes for the production and isolation of plant secondary metabolites remains in its infancy. The present review provides an updated overview of the prospects, challenges, and possible solutions for using microbial endophytes as micro-factories for obtaining commercially important plant metabolites.Key points• Some "plant" metabolites are rather synthesized by the associated endophytes.• Challenges: Attenuation, silencing of BGCs, unculturability, complex cross-talk.• Solutions: Simulation of in planta habitat, advanced characterization methods.
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Affiliation(s)
- Sushma Mishra
- Plant Biotechnology Laboratory, Dayalbagh Educational Institute (Deemed-to-be-University), Agra, Uttar Pradesh, 282005, India.
| | - Pramod Kumar Sahu
- ICAR-National Bureau of Agriculturally Important Microorganisms, Kushmaur, Maunath Bhanjan, Uttar Pradesh, 275103, India
| | - Vishad Agarwal
- Plant Biotechnology Laboratory, Dayalbagh Educational Institute (Deemed-to-be-University), Agra, Uttar Pradesh, 282005, India
| | - Namrata Singh
- Plant Biotechnology Laboratory, Dayalbagh Educational Institute (Deemed-to-be-University), Agra, Uttar Pradesh, 282005, India
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20
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Agrawal S, Samanta S, Deshmukh SK. The antidiabetic potential of endophytic fungi: Future prospects as therapeutic agents. Biotechnol Appl Biochem 2021; 69:1159-1165. [PMID: 33998044 DOI: 10.1002/bab.2192] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Accepted: 05/12/2021] [Indexed: 11/07/2022]
Abstract
Diabetes mellitus is one of the most common systemic diseases in the world, and it occurs when the body becomes resistant to insulin or does not make enough insulin. As described by the World Health Organization, diabetes mellitus of all types has exponentially grown in the past decades across the globe and it is estimated to be 629 million by 2045. Despite this alarming prevalence of diabetes mellitus, there is still the lack of harmless preventive medicines. Natural products and compounds obtained from plants, fungi, bacteria, and other living organisms have been used for many decades in folklore medicine to prepare a varied range of natural formulations to treat multiple diseases and illnesses. Endophytic fungi reside inside the plant while causing no harm to the host plant and are relatively less explored as the primary source for the bioactive metabolites such as anticancer, antioxidant, antimicrobial, antidiabetic, and industrial enzymes. This mini-review summarizes the potential of compounds and extracts from endophytic fungi against diabetes mellitus. Not much research has been dedicated in-depth understanding of the role of extracts of endophytic fungi and their effect on diabetes mellitus. Therefore, this article will focus on recent work and warrant further commentaries on the published articles.
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Affiliation(s)
- Shivankar Agrawal
- Indian Council of Medical Research, IJMR Unit, Delhi, India.,TERI-Deakin Nano Biotechnology Centre, Biotechnology and Management of Bioresources Division, The Energy and Resources Institute, New Delhi, India
| | - Sreeparna Samanta
- TERI-Deakin Nano Biotechnology Centre, Biotechnology and Management of Bioresources Division, The Energy and Resources Institute, New Delhi, India
| | - Sunil Kumar Deshmukh
- TERI-Deakin Nano Biotechnology Centre, Biotechnology and Management of Bioresources Division, The Energy and Resources Institute, New Delhi, India
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21
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Oberhofer M, Wackerlig J, Zehl M, Büyük H, Cao JJ, Prado-Roller A, Urban E, Zotchev SB. Endophytic Akanthomyces sp. LN303 from Edelweiss Produces Emestrin and Two New 2-Hydroxy-4 Pyridone Alkaloids. ACS OMEGA 2021; 6:2184-2191. [PMID: 33521458 PMCID: PMC7841945 DOI: 10.1021/acsomega.0c05472] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 12/07/2020] [Indexed: 06/12/2023]
Abstract
In the search for new antibiotics, several fungal endophytes were isolated from the medicinal plant Leontopodium nivale subsp. alpinum (Edelweiss). The extract from one of these fungi classified as Akanthomyces sp. displayed broad-spectrum antibiotic activity against gram-negative bacteria and fungi. Further investigation into the composition of this extract using bioactivity-guided fractionation, HRMS, and nuclear magnetic resonance revealed two new 4-hydroxy-2-pyridone alkaloids (1, 2) and emestrin (3), an epidithiodioxopiperazine not previously known to be produced by a member of Cordycipitaceae. Further testing of purified compounds 1 and 2 proved that they are devoid of antibiotic activity, and all the activities observed in the crude extract could be assigned to emestrin (3), whose configuration was confirmed by crystallographic data. This study demonstrates, for the first time, that endophytic fungi from Edelweiss can produce new compounds, prompting further investigation into them for drug discovery.
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Affiliation(s)
- Martina Oberhofer
- Department
of Pharmacognosy, University of Vienna, 1090 Vienna, Austria
| | - Judith Wackerlig
- Department
of Pharmaceutical Chemistry, University
of Vienna, 1090 Vienna, Austria
| | - Martin Zehl
- Department
of Analytical Chemistry, Faculty of Chemistry, University of Vienna, 1090 Vienna, Austria
| | - Havva Büyük
- Department
of Pharmaceutical Chemistry, University
of Vienna, 1090 Vienna, Austria
| | - Jia Jian Cao
- Department
of Pharmaceutical Chemistry, University
of Vienna, 1090 Vienna, Austria
| | - Alexander Prado-Roller
- Department
of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, 1090 Vienna, Austria
| | - Ernst Urban
- Department
of Pharmaceutical Chemistry, University
of Vienna, 1090 Vienna, Austria
| | - Sergey B. Zotchev
- Department
of Pharmacognosy, University of Vienna, 1090 Vienna, Austria
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22
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Mohinudeen IAHK, Kanumuri R, Soujanya KN, Shaanker RU, Rayala SK, Srivastava S. Sustainable production of camptothecin from an Alternaria sp. isolated from Nothapodytes nimmoniana. Sci Rep 2021; 11:1478. [PMID: 33446714 PMCID: PMC7809410 DOI: 10.1038/s41598-020-79239-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 12/04/2020] [Indexed: 11/09/2022] Open
Abstract
Camptothecin the third most in demand alkaloid, is commercially extracted in India from the endangered plant, Nothapodytes nimmoniana. Endophytes, the microorganisms that reside within plants, are reported to have the ability to produce host-plant associated metabolites. Hence, our research aims to establish a sustainable and high camptothecin yielding endophyte, as an alternative source for commercial production of camptothecin. A total of 132 endophytic fungal strains were isolated from different plant parts (leaf, petiole, stem and bark) of N. nimmoniana, out of which 94 were found to produce camptothecin in suspension culture. Alternaria alstroemeriae (NCIM1408) and Alternaria burnsii (NCIM1409) demonstrated camptothecin yields up to 426.7 ± 33.6 µg/g DW and 403.3 ± 41.6 µg/g DW, respectively, the highest reported production to date. Unlike the reported product yield attenuation in endophytes with subculture in axenic state, Alternaria burnsii NCIM1409 could retain and sustain the production of camptothecin up to ~ 200 μg/g even after 12 continuous subculture cycles. The camptothecin biosynthesis in Alternaria burnsii NCIM1409 was confirmed using 13C carbon labelling (and cytotoxicity analysis on different cancer cell lines) and this strain can now be used to develop a sustainable bioprocess for in vitro production of camptothecin as an alternative to plant extraction.
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Affiliation(s)
- I A H Khwajah Mohinudeen
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, 600 036, India
| | - Rahul Kanumuri
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, 600 036, India
| | - K N Soujanya
- School of Ecology and Conservation, University of Agricultural Sciences, GKVK, Bangalore, 560 065, India
- JSS College for Women (Autonomous), Saraswathipuram, Mysore, 570009, India
| | - R Uma Shaanker
- School of Ecology and Conservation, University of Agricultural Sciences, GKVK, Bangalore, 560 065, India
| | - Suresh Kumar Rayala
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, 600 036, India
| | - Smita Srivastava
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, 600 036, India.
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23
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Exploring Endophytes Using “Omics”: An Approach for Sustainable Production of Bioactive Metabolites. Fungal Biol 2021. [DOI: 10.1007/978-3-030-54422-5_15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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24
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Molecular profiling of marine endophytic fungi from green algae: Assessment of antibacterial and anticancer activities. Process Biochem 2020. [DOI: 10.1016/j.procbio.2020.05.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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25
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Santos TFB, dos Santos Carvalho C, de Almeida MA, Delforno TP, Duarte ICS. Endophytic fungi isolated from Brazilian medicinal plants as potential producers of antioxidants and their relations with anti-inflammatory activity. 3 Biotech 2020; 10:223. [PMID: 32368432 DOI: 10.1007/s13205-020-02211-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Accepted: 04/16/2020] [Indexed: 01/03/2023] Open
Abstract
In this study, 19 endophytic fungi were isolated from Lafoensia pacari, Guazuma ulmifolia, Campomanesia xanthocarpa and Siparuna guianensis. Seventeen strains were molecularly identified as belonging to the genera Colletotrichum, Diaporthe, Bjerkandera, Talaromyces, Cochliobolus, Phaeophlebiopsis, Curvularia, and Xylaraceae. Assays for detecting antioxidant activity were performed by free radical scavenging activity using the DDPH and ABTS + methods. Based on the results with DPPH, two strains were selected to evaluate the presence of flavonoids and anti-inflammatory activity. A strong positive correlation was found between these activities and the presence of flavonoids. The anti-inflammatory activity of endophytic fungi is under explored; however, the Talaromyces obtained the best result of 87.33% protection of erythrocytes and Colletotrichium of 60.71%. This study demonstrated that endophytic fungi associated with selected plants are potential sources of novel antioxidant products.
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26
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Ancheeva E, Daletos G, Proksch P. Bioactive Secondary Metabolites from Endophytic Fungi. Curr Med Chem 2020; 27:1836-1854. [DOI: 10.2174/0929867326666190916144709] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Revised: 08/15/2019] [Accepted: 09/06/2019] [Indexed: 11/22/2022]
Abstract
Background:
Endophytes represent a complex community of microorganisms colonizing
asymptomatically internal tissues of higher plants. Several reports have shown that endophytes enhance
the fitness of their host plants by direct production of bioactive secondary metabolites, which are involved
in protecting the host against herbivores and pathogenic microbes. In addition, it is increasingly
apparent that endophytes are able to biosynthesize medicinally important “phytochemicals”, originally
believed to be produced only by their host plants.
Objective:
The present review provides an overview of secondary metabolites from endophytic fungi
with pronounced biological activities covering the literature between 2010 and 2017. Special focus is
given on studies aiming at exploration of the mode of action of these metabolites towards the discovery
of leads from endophytic fungi. Moreover, this review critically evaluates the potential of endophytic
fungi as alternative sources of bioactive “plant metabolites”.
Results:
Over the past few years, several promising lead structures from endophytic fungi have been
described in the literature. In this review, 65 metabolites are outlined with pronounced biological activities,
primarily as antimicrobial and cytotoxic agents. Some of these metabolites have shown to be
highly selective or to possess novel mechanisms of action, which hold great promises as potential drug
candidates.
Conclusion:
Endophytes represent an inexhaustible reservoir of pharmacologically important compounds.
Moreover, endophytic fungi could be exploited for the sustainable production of bioactive
“plant metabolites” in the future. Towards this aim, further insights into the dynamic endophyte - host
plant interactions and origin of endophytic fungal genes would be of utmost importance.
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Affiliation(s)
- Elena Ancheeva
- Institute of Pharmaceutical Biology and Biotechnology, Heinrich Heine University Düsseldorf, Universitätsstrasse 1, Düsseldorf 40225, Germany
| | - Georgios Daletos
- Institute of Pharmaceutical Biology and Biotechnology, Heinrich Heine University Düsseldorf, Universitätsstrasse 1, Düsseldorf 40225, Germany
| | - Peter Proksch
- Institute of Pharmaceutical Biology and Biotechnology, Heinrich Heine University Düsseldorf, Universitätsstrasse 1, Düsseldorf 40225, Germany
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27
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Gupta S, Chaturvedi P, Kulkarni MG, Van Staden J. A critical review on exploiting the pharmaceutical potential of plant endophytic fungi. Biotechnol Adv 2020; 39:107462. [DOI: 10.1016/j.biotechadv.2019.107462] [Citation(s) in RCA: 94] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2019] [Revised: 09/22/2019] [Accepted: 10/22/2019] [Indexed: 02/08/2023]
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28
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Guo L, Lin J, Niu S, Liu S, Liu L. Pestalotiones A-D: Four New Secondary Metabolites from the Plant Endophytic Fungus Pestalotiopsis Theae. Molecules 2020; 25:molecules25030470. [PMID: 31979166 PMCID: PMC7037426 DOI: 10.3390/molecules25030470] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 01/19/2020] [Accepted: 01/20/2020] [Indexed: 01/05/2023] Open
Abstract
Two new xanthone derivatives, pestalotiones A (1) and B (2), one new diphenyl ketone riboside, pestalotione C (7), and one new diphenyl ether, pestalotione D (8), along with five known compounds isosulochrin dehydrate (3), 3,8-dihydroxy-6-methyl-9-oxo-9H-xanthene-1-carboxylate (4), isosulochrin (5), chloroisosulochrin (6), and pestalotether D (9), were isolated from the crude extract of the plant endophytic fungus Pestalotiopsis theae (N635). The structures of the new compounds were unambiguously deduced by HRESIMS and 1D/2D-NMR spectroscopic data. Compound 6 showed modest cytotoxicity against the HeLa cell line with an IC50 value of 35.2 μM. Compound 9 also showed cytotoxic to the HeLa and MCF-7 cell lines, with IC50 values of 60.8 and 22.6 μM, respectively. Additionally, compounds 1 and 2 exhibited antioxidant activity in scavenging DPPH radical with IC50 values of 54.2 and 59.2 μg/mL, respectively.
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Affiliation(s)
- Longfang Guo
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China; (L.G.); (S.L.)
- University of Chinese Academy of Sciences, Beijing 100039, China
| | - Jie Lin
- Jiangsu Key Laboratory for Biofunctional Molecules, College of Life Science and Chemistry, Jiangsu Second Normal University, Nanjing 210003, China;
| | - Shubin Niu
- School of Biological Medicine, Beijing City University, Beijing 100083, China;
| | - Shuchun Liu
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China; (L.G.); (S.L.)
| | - Ling Liu
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China; (L.G.); (S.L.)
- Correspondence: ; Tel.: 86-10-648-06153
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29
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Sebola TE, Uche‐Okereafor NC, Tapfuma KI, Mekuto L, Green E, Mavumengwana V. Evaluating antibacterial and anticancer activity of crude extracts of bacterial endophytes from Crinum macowanii Baker bulbs. Microbiologyopen 2019; 8:e914. [PMID: 31420951 PMCID: PMC6925154 DOI: 10.1002/mbo3.914] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 07/03/2019] [Accepted: 07/05/2019] [Indexed: 11/23/2022] Open
Abstract
The results from this study revealed that crude extracts isolated from bacterial endophytes obtained from Crinum macowanii bulbs showed activity against both Gram-positive and Gram-negative pathogenic bacteria, while Acinetobacter guillouiae crude extracts displayed anticancer activity. This study aimed to isolate and characterize bacterial endophytes and their crude extracts from C. macowanii bulbs. Endophytes were isolated using validated surface sterilization techniques, followed by phenotypic and genotypic profiles of the isolates. Crude extracts were extracted from the endophytes using ethyl acetate, while methanol:dichloromethane (1:1) was used to obtain crude extracts from the bulbs. Antibacterial activity of crude extract from each endophyte was investigated against selected pathogenic strains using the broth microdilution method, and anticancer activity against U87MG glioblastoma and A549 lung carcinoma cells was determined by the MTS (3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxy-phenyl)-2-(4-sulfophenyl)-2H-tetrazolium) assay. Acinetobacter guillouiae, Pseudomonas moraviensis, Pseudomonas sp., Rahnella aquatilis, Bacillus cereus, Novosphingobium sp., Raoultella ornithinolytica, and Burkholderia tropica were successfully isolated. The crude extracts from the majority of endophytes showed antibacterial activity, ranging from 0.125 to >16.00 mg/ml against Gram-negative and Gram-positive pathogenic bacteria. Acinetobacter guillouiae extracts showed a high bioactive potential against U87MG glioblastoma cell lines by reducing their growth by 50% at concentrations of 12.5, 6.25, and 3.13 µg/ml. Crude extracts isolated from C. macowanii bulbs showed potential for possible drug lead against common pathogenic bacteria.
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Affiliation(s)
- Tendani E. Sebola
- Department of Biotechnology and Food Technology, Faculty of ScienceUniversity of JohannesburgJohannesburgSouth Africa
| | - Nkemdinma C. Uche‐Okereafor
- Department of Biotechnology and Food Technology, Faculty of ScienceUniversity of JohannesburgJohannesburgSouth Africa
| | - Kudzanai I. Tapfuma
- Department of Biotechnology and Food Technology, Faculty of ScienceUniversity of JohannesburgJohannesburgSouth Africa
| | - Lukhanyo Mekuto
- Department of Chemical Engineering, Faculty of Engineering and the Built EnvironmentUniversity of JohannesburgJohannesburgSouth Africa
| | - Ezekiel Green
- Department of Biotechnology and Food Technology, Faculty of ScienceUniversity of JohannesburgJohannesburgSouth Africa
| | - Vuyo Mavumengwana
- Division of Molecular Biology and Human Genetics, Department of Medicine and Health Sciences, South African Medical Research Council Centre for Tuberculosis ResearchStellenbosch UniversityCape TownSouth Africa
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30
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Zhao JY, Wang XJ, Liu Z, Meng FX, Sun SF, Ye F, Liu YB. Nonadride and Spirocyclic Anhydride Derivatives from the Plant Endophytic Fungus Talaromyces purpurogenus. JOURNAL OF NATURAL PRODUCTS 2019; 82:2953-2962. [PMID: 31710490 DOI: 10.1021/acs.jnatprod.9b00210] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Six new nonadride derivatives (1-6) and three new spirocyclic anhydride derivatives (7-9) were isolated from the endophytic fungus Talaromyces purpurogenus obtained from fresh leaves of the toxic medicinal plant Tylophora ovata. The structures of these compounds were determined by spectroscopic analyses including 1D and 2D NMR, HRESIMS, and ECD techniques. Maleic anhydride derivatives 1-9 were evaluated for their in vitro anti-inflammatory activities. Compound 1 showed significant inhibitory activity against NO production in LPS-induced RAW264.7 cells with an IC50 value of 1.9 μM. Compounds 2 and 6 showed moderate inhibitory activities toward XOD and PTP1b, respectively, at 10 μM with inhibition rates of 67% and 76%.
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Affiliation(s)
- Jing-Yi Zhao
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica , Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050 , People's Republic of China
| | - Xiao-Jing Wang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica , Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050 , People's Republic of China
| | - Zhen Liu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica , Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050 , People's Republic of China
| | - Fan-Xing Meng
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica , Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050 , People's Republic of China
| | - Sen-Feng Sun
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica , Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050 , People's Republic of China
| | - Fei Ye
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica , Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050 , People's Republic of China
| | - Yun-Bao Liu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica , Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050 , People's Republic of China
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31
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Ranjan A, Singh RK, Khare S, Tripathi R, Pandey RK, Singh AK, Gautam V, Tripathi JS, Singh SK. Characterization and evaluation of mycosterol secreted from endophytic strain of Gymnema sylvestre for inhibition of α-glucosidase activity. Sci Rep 2019; 9:17302. [PMID: 31754154 PMCID: PMC6872796 DOI: 10.1038/s41598-019-53227-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 09/13/2019] [Indexed: 01/25/2023] Open
Abstract
Endophytic fungi produce various types of chemicals for establishment of niche within the host plant. Due to symbiotic association, they secrete pharmaceutically important bioactive compounds and enzyme inhibitors. In this research article, we have explored the potent α-glucosidse inhibitor (AGI) produced from Fusarium equiseti recovered from the leaf of Gymnema sylvestre through bioassay-guided fraction. This study investigated the biodiversity, phylogeny, antioxidant activity and α-glucosidse inhibition of endophytic fungi isolated from Gymnema sylvestre. A total of 32 isolates obtained were grouped into 16 genera, according to their morphology of colony and spores. A high biodiversity of endophytic fungi were observed in G. sylvestre with diversity indices. Endophytic fungal strain Fusarium equiseti was identified through DNA sequencing and the sequence was deposited in GenBank database (https://ncbi.nim.nih.gov) with acession number: MF403109. The characterization of potent compound was done by FTIR, LC-ESI-MS and NMR spectroscopic analysis with IUPAC name 17-(5-ethyl-6-methylheptan-2-yl)-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a] phenanthren-3-ol. The isolated bioactive compound showed significant α-amylase and α-glucosidase inhibition activity with IC50 values, 4.22 ± 0.0005 µg/mL and 69.72 ± 0.001 µg/mL while IC50 values of acarbose was 5.75 ± 0.007 and 55.29 ± 0.0005 µg/mL respectively. This result is higher in comparison to other previous study. The enzyme kinetics study revealed that bioactive compound was competitive inhibitor for α-amylase and α-glucosidase. In-silico study showed that bioactive compound binds to the binding site of α-amylase, similar to that of acarbose but with higher affinity. The study highlights the importance of endophytic fungi as an alternative source of AGI (α-glucosidase inhibition) to control the diabetic condition in vitro.
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Affiliation(s)
- Amit Ranjan
- Centre of Experimental Medicine and Surgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221 005, India
- Department of Kayachikitsa, Faculty of Ayurveda, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221 005, India
| | - Rajesh Kumar Singh
- Centre of Experimental Medicine and Surgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221 005, India
- Department of Dravyaguna, Faculty of Ayurveda, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221 005, India
| | - Saumya Khare
- Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi, 221 005, India
| | - Ruchita Tripathi
- Department of Dravyaguna, Faculty of Ayurveda, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221 005, India
| | - Rajesh Kumar Pandey
- Centre of Experimental Medicine and Surgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221 005, India
| | - Anurag Kumar Singh
- Centre of Experimental Medicine and Surgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221 005, India
| | - Vibhav Gautam
- Centre of Experimental Medicine and Surgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221 005, India
| | - Jyoti Shankar Tripathi
- Department of Kayachikitsa, Faculty of Ayurveda, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221 005, India
| | - Santosh Kumar Singh
- Centre of Experimental Medicine and Surgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221 005, India.
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32
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Long Y, Tang T, Wang LY, He B, Gao K. Absolute Configuration and Biological Activities of Meroterpenoids from an Endophytic Fungus of Lycium barbarum. JOURNAL OF NATURAL PRODUCTS 2019; 82:2229-2237. [PMID: 31397570 DOI: 10.1021/acs.jnatprod.9b00288] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Eleven new meroterpenoids, bipolahydroquinones A-C (1-3), cochlioquinones I-N (4-8 and 11), and isocochlioquinones F and G (9 and 10), together with six known ones, were obtained from an endophytic fungus Bipolaris sp. L1-2 from Lycium barbarum. Compound 2 is the first example of cochlioquinone derivatives possessing a benzofuran moiety. The structures and absolute configurations of the new compounds were elucidated by spectroscopic data interpretation, single-crystal X-ray diffraction analysis, chemical transformations, and biosynthetic considerations. Compounds 3, 4, and 6-8 showed cytotoxicity against NCI-H226 and/or MDA-MB-231 with IC50 values ranging from 5.5 to 9.5 μM.
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Affiliation(s)
- Yi Long
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering , Lanzhou University , Lanzhou 730000 , People's Republic of China
| | - Ting Tang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering , Lanzhou University , Lanzhou 730000 , People's Republic of China
| | - Li-Ying Wang
- Ningxia Senmiao Goji Technology and Development Co., Ltd. , Yinchuan 750000 , People's Republic of China
| | - Bin He
- Ningxia Senmiao Goji Technology and Development Co., Ltd. , Yinchuan 750000 , 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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Cai R, Jiang H, Zang Z, Li C, She Z. New Benzofuranoids and Phenylpropanoids from the Mangrove Endophytic Fungus, Aspergillus sp. ZJ-68. Mar Drugs 2019; 17:md17080478. [PMID: 31426620 PMCID: PMC6723808 DOI: 10.3390/md17080478] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 08/13/2019] [Accepted: 08/16/2019] [Indexed: 11/16/2022] Open
Abstract
Three new benzofuranoids, asperfuranoids A-C (1-3), two new phenylpropanoid derivatives (6 and 7), and nine known analogues (4, 5, and 8-14) were isolated from the liquid substrate fermentation cultures of the mangrove endopytic fungus Aspergillus sp. ZJ-68. The structures of the new compounds were determined by extensive spectroscopic data interpretation. The absolute configurations of 1-3 were assigned via the combination of Mosher's method, and experimental and calculated electronic circular dichroism (ECD) data. Compounds 4 and 5 were a pair of enantiomers and their absolute configurations were established for the first time on the basis of their ECD spectra aided with ECD calculations. All isolated compounds (1-14) were evaluated for their enzyme inhibitory activity against α-glucosidase and antibacterial activities against four pathogenic bacteria (Staphylococcus aureus, Escherichia coli, Bacillus subtilis, and Pseudomonas aeruginosa). Among them, compound 6 exhibited potent inhibitory activity against α-glucosidase in a standard in vitro assay, with an IC50 value of 12.4 μM, while compounds 8 and 11 showed activities against S. aureus, E. coli, and B. subtilis, with MIC values in the range of 4.15 to 12.5 μg/mL.
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Affiliation(s)
- Runlin Cai
- School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China
| | - Hongming Jiang
- School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China
| | - Zhenming Zang
- School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China
| | - Chunyuan Li
- College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China.
| | - Zhigang She
- School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China.
- South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Guangzhou 510006, China.
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34
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Oberlies NH, Knowles SL, Amrine CSM, Kao D, Kertesz V, Raja HA. Droplet probe: coupling chromatography to the in situ evaluation of the chemistry of nature. Nat Prod Rep 2019; 36:944-959. [PMID: 31112181 PMCID: PMC6640111 DOI: 10.1039/c9np00019d] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Covering: up to 2019The chemistry of nature can be beautiful, inspiring, beneficial and poisonous, depending on perspective. Since the isolation of the first secondary metabolites roughly two centuries ago, much of the chemical research on natural products has been both reductionist and static. Typically, compounds were isolated and characterized from the extract of an entire organism from a single time point. While there could be subtexts to that approach, the general premise has been to determine the chemistry with very little in the way of tools to differentiate spatial and/or temporal changes in secondary metabolite profiles. However, the past decade has seen exponential advances in our ability to observe, measure, and visualize the chemistry of nature in situ. Many of those techniques have been reviewed in this journal, and most are tapping into the power of mass spectrometry to analyze a plethora of sample types. In nearly all of the other techniques used to study chemistry in situ, the element of chromatography has been eliminated, instead using various ionization sources to coax ions of the secondary metabolites directly into the mass spectrometer as a mixture. Much of that science has been driven by the great advances in ambient ionization techniques used with a suite of mass spectrometry platforms, including the alphabet soup from DESI to LAESI to MALDI. This review discusses the one in situ analysis technique that incorporates chromatography, being the droplet-liquid microjunction-surface sampling probe, which is more easily termed "droplet probe". In addition to comparing and contrasting the droplet probe with other techniques, we provide perspective on why scientists, particularly those steeped in natural products chemistry training, may want to include chromatography in in situ analyses. Moreover, we provide justification for droplet sampling, especially for samples with delicate and/or non-uniform topographies. Furthermore, while the droplet probe has been used the most in the analysis of fungal cultures, we digest a variety of other applications, ranging from cyanobacteria, to plant parts, and even delicate documents, such as herbarium specimens.
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Affiliation(s)
- Nicholas H Oberlies
- Department of Chemistry & Biochemistry, University of North Carolina at Greensboro, Greensboro, North Carolina, USA.
| | - Sonja L Knowles
- Department of Chemistry & Biochemistry, University of North Carolina at Greensboro, Greensboro, North Carolina, USA.
| | - Chiraz Soumia M Amrine
- Department of Chemistry & Biochemistry, University of North Carolina at Greensboro, Greensboro, North Carolina, USA.
| | - Diana Kao
- Department of Chemistry & Biochemistry, University of North Carolina at Greensboro, Greensboro, North Carolina, USA.
| | - Vilmos Kertesz
- Mass Spectrometry and Laser Spectroscopy Group, Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - Huzefa A Raja
- Department of Chemistry & Biochemistry, University of North Carolina at Greensboro, Greensboro, North Carolina, USA.
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35
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Association between dipsacus saponin VI level and diversity of endophytic fungi in roots of Dipsacus asperoides. World J Microbiol Biotechnol 2019; 35:42. [PMID: 30778697 PMCID: PMC6394449 DOI: 10.1007/s11274-019-2616-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 02/06/2019] [Indexed: 10/31/2022]
Abstract
Dipsacus asperoides contains multiple pharmacologically active compounds. The principal are saponins. The plant can be cultivated, but it contains lower levels of bioactive compounds than the plant in the wild. It may be the reason to exploit the endophytic fungi that colonize the plant roots in order to produce bioactive compounds. However, the endophytic fungi of D. asperoides have not been analyzed in detail. In this study, we isolated and identified 46 endophytic fungal strains from the taproots, lateral roots and leaves, and we used morphological and molecular biological methods to assign them into 15 genera: Fusarium sp., Ceratobasidium sp., Chaetomium sp., Penicillium sp., Aspergillus sp., Talaromyces sp., Cladosporium sp., Bionectria sp., Mucor sp., Trichoderma sp., Myrothecium sp., Clonostachys sp., Ijuhya sp., Leptosphaeria sp. and Phoma sp. Taproots contained abundant endophytic fungi, the numbers of which correlated positively with level of dipsacus saponin VI. Primary fermentation of several endophytic fungal strains from taproots showed that Fusarium, Leptosphaeria, Ceratobasidium sp. and Phoma sp. can produce the triterpenoid saponin. These results may guide efforts to sustainably produce bioactive compounds from D. asperoides.
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36
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Kamel RA, Abdel-Razek AS, Hamed A, Ibrahim RR, Stammler HG, Frese M, Sewald N, Shaaban M. Isoshamixanthone: a new pyrano xanthone from endophytic Aspergillus sp. ASCLA and absolute configuration of epiisoshamixanthone. Nat Prod Res 2019; 34:1080-1090. [PMID: 30663363 DOI: 10.1080/14786419.2018.1548458] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Isoshamixanthone (1), a new stereoisomeric pyrano xanthone together with the previously known fungal metabolites, epiisoshamixanthone (2), sterigmatocystin (3), arugosin C (4), norlichexanthone (5), diorcinol (6), ergosterol and methyllinoleate, were obtained from the endophytic fungal strain Aspergillus sp. ASCLA isolated from leaf tissues of the medicinal plant Callistemon subulatus. The chemical structure of the new xanthone (1) was elucidated by extensive 1D, 2D NMR, and ESI HR mass measurements, and by comparison with literature data. The constitutions and absolute configurations of 1 and epiisoshamixanthone (2) were additionally confirmed by X-ray crystallography. Compounds 1,2 were evaluated for their potential anticancer activity using the human cervix carcinoma cell line (KB-3-1). The antimicrobial activities of the fungal extract and compounds 1,2 were studied using a panel of pathogenic microorganisms as well.
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Affiliation(s)
- Reem A Kamel
- Organic and Bioorganic Chemistry, Faculty of Chemistry, Bielefeld University, Bielefeld, Germany.,Pharmacognosy Department, Faculty of Pharmacy, Helwan University, Helwan, Cairo, Egypt
| | - Ahmed S Abdel-Razek
- Organic and Bioorganic Chemistry, Faculty of Chemistry, Bielefeld University, Bielefeld, Germany.,Microbial Chemistry Department, Genetic Engineering and Biotechnology Research Division, National Research Centre, Dokki-Giza, Egypt
| | - Abdelaaty Hamed
- Organic and Bioorganic Chemistry, Faculty of Chemistry, Bielefeld University, Bielefeld, Germany.,Chemistry Department, Faculty of Science, Al-Azhar University, Nasr City-Cairo, Egypt
| | - Reham R Ibrahim
- Pharmacognosy Department, Faculty of Pharmacy, Helwan University, Helwan, Cairo, Egypt
| | - Hans Georg Stammler
- Inorganic and Structural Chemistry, Bielefeld University, Department of Chemistry, Bielefeld, Germany
| | - Marcel Frese
- Organic and Bioorganic Chemistry, Faculty of Chemistry, Bielefeld University, Bielefeld, Germany
| | - Norbert Sewald
- Organic and Bioorganic Chemistry, Faculty of Chemistry, Bielefeld University, Bielefeld, Germany
| | - Mohamed Shaaban
- Organic and Bioorganic Chemistry, Faculty of Chemistry, Bielefeld University, Bielefeld, Germany.,Chemistry of Natural Compounds Department, Division of Pharmaceutical Industries, National Research Centre, Dokki-Giza, Egypt
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37
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Biodiversity of Endophytic Fungi from Diverse Niches and Their Biotechnological Applications. ADVANCES IN ENDOPHYTIC FUNGAL RESEARCH 2019. [DOI: 10.1007/978-3-030-03589-1_6] [Citation(s) in RCA: 105] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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38
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Endophytic Fungi: Biodiversity, Ecological Significance, and Potential Industrial Applications. RECENT ADVANCEMENT IN WHITE BIOTECHNOLOGY THROUGH FUNGI 2019. [DOI: 10.1007/978-3-030-10480-1_1] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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39
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Secondary Metabolites of Endophytic Actinomycetes: Isolation, Synthesis, Biosynthesis, and Biological Activities. PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS 108 2019; 108:207-296. [DOI: 10.1007/978-3-030-01099-7_3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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40
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Chen HY, Liu TK, Yang J, Yang XL. Emerones A–C: three novel merosesquiterpenoids with unprecedented skeletons from Emericella sp. XL029. Org Biomol Chem 2019; 17:8450-8455. [DOI: 10.1039/c9ob01788g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Three novel merosesquiterpenoids (1–3) from Emericella sp. XL029.
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Affiliation(s)
- Heng-Ye Chen
- School of Pharmaceutical Sciences
- South-Central University for Nationalities
- Wuhan 430074
- China
| | - Ting-Kai Liu
- School of Pharmaceutical Sciences
- South-Central University for Nationalities
- Wuhan 430074
- China
| | - Jian Yang
- National Resource Center for Chinese Materia Medica
- China Academy of Chinese Medical Sciences
- Beijing 100700
- China
| | - Xiao-Long Yang
- School of Pharmaceutical Sciences
- South-Central University for Nationalities
- Wuhan 430074
- China
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41
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Pang XJ, Zhang SB, Chen HL, Zhao WT, Yang DF, Xian PJ, Xu LL, Tao YD, Fu HY, Yang XL. Emericelactones A-D: Four novel polyketides produced by Emericella sp. XL 029, a fungus associated the leaves of Panax notoginseng. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.11.032] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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42
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Are Microbial Endophytes the ‘Actual’ Producers of Bioactive Antitumor Agents? Trends Cancer 2018; 4:662-670. [DOI: 10.1016/j.trecan.2018.08.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 08/10/2018] [Accepted: 08/13/2018] [Indexed: 11/22/2022]
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43
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Gupta S, Bhatt P, Chaturvedi P. Determination and quantification of asiaticoside in endophytic fungus from Centella asiatica (L.) Urban. World J Microbiol Biotechnol 2018; 34:111. [PMID: 29980864 DOI: 10.1007/s11274-018-2493-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 06/30/2018] [Indexed: 11/28/2022]
Abstract
Centella asiatica (L.) Urban is a highly considered medicinal plant owing to its secondary metabolites asiaticoside, madecassoside, asiatic acid, and madecassic acid. The asiaticoside, one of the most important constituents of the plant, is a triterpenoid saponin having memory enhancement property. Given its medicinal properties, we isolated and characterized endophytic fungi from this plant with the aim to screen these microorganisms for asiaticoside production. In total, we isolated 13 endophytic fungi from the leaves of the plant, out of which one of the isolates produced asiaticoside. This asiaticoside producing isolate was identified as Colletotrichum gloeosporioides by internal transcribed spacer-based rDNA sequencing. The presence of asiaticoside in ethyl acetate extract of C. gloeosporioides was confirmed by LC-MS. The production of asiaticoside measured in relation to incubation time and subculture generation revealed presence of 62.29 ± 3.36 µg/100 mL of asiaticoside by C. gloeosporioides on the 15th day in first subculture generation followed by a decrease in subsequent generations. A similar trend was also shown by yield and growth curve of C. gloeosporioides. The asiaticoside production and yield were found to be positively correlated. This paper reported the production of asiaticoside by an endophytic fungus C. gloeosporioides for the first time. The present findings definitely provide an impetus to the production of asiaticoside by utilizing the endophytic source. Chemical compound studied in this article: Asiaticoside (PubChemCID: 108062).
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Affiliation(s)
- Shubhpriya Gupta
- Department of Biological Sciences, College of Basic Sciences and Humanities, G. B. Pant University of Agriculture and Technology, Pantnagar, Uttarakhand, India.
| | - Pankaj Bhatt
- Department of Microbiology, College of Basic Sciences and Humanities, G. B. Pant University of Agriculture and Technology, Pantnagar, Uttarakhand, India
| | - Preeti Chaturvedi
- Department of Biological Sciences, College of Basic Sciences and Humanities, G. B. Pant University of Agriculture and Technology, Pantnagar, Uttarakhand, India
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44
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Ishiuchi K, Hirose D, Suzuki T, Nakayama W, Jiang WP, Monthakantirat O, Wu JB, Kitanaka S, Makino T. Identification of Lycopodium Alkaloids Produced by an Ultraviolet-Irradiated Strain of Paraboeremia, an Endophytic Fungus from Lycopodium serratum var. longipetiolatum. JOURNAL OF NATURAL PRODUCTS 2018; 81:1143-1147. [PMID: 29676580 DOI: 10.1021/acs.jnatprod.7b00627] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
12- epi-Lycopodine (1), a Lycopodium alkaloid, along with lycopodine (2) and huperzine A (3), were discovered in the mycelium of Paraboeremia sp. Lsl3KI076, a UV-irradiated strain of Paraboeremia sp. Lsl3, an endophytic fungus from Lycopodium serratum Thunb. var. longipetiolatum Spring. Additionally, a trace of 1 was isolated from Phlegmariurus nummulariifolius (Blume) Ching, and the structure was elucidated on the basis of spectroscopic data. This is the first report proving that a new naturally occurring Lycopodium alkaloid can be obtained from an endophytic fungus.
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Affiliation(s)
- Kan'ichiro Ishiuchi
- Graduate School of Pharmaceutical Sciences , Nagoya City University , 3-1, Tanabe-Dori , Mizuho-ku, Nagoya 467-8603 , Aichi , Japan
| | - Dai Hirose
- School of Pharmacy , Nihon University , 7-7-1, Narashinodai , Funabashi , 274-8555 , Chiba , Japan
| | - Takuma Suzuki
- Graduate School of Pharmaceutical Sciences , Nagoya City University , 3-1, Tanabe-Dori , Mizuho-ku, Nagoya 467-8603 , Aichi , Japan
| | - Waka Nakayama
- Graduate School of Pharmaceutical Sciences , Nagoya City University , 3-1, Tanabe-Dori , Mizuho-ku, Nagoya 467-8603 , Aichi , Japan
| | - Wen-Ping Jiang
- School of Pharmacy , China Medical University , No. 91, Hsueh-Shih R. , Taichung 40402 , Taiwan
| | - Orawan Monthakantirat
- Faculty of Pharmaceutical Sciences , Khon Kaen University , Khon Kaen 40002 , Thailand
| | - Jin-Bin Wu
- School of Pharmacy , China Medical University , No. 91, Hsueh-Shih R. , Taichung 40402 , Taiwan
| | - Susumu Kitanaka
- School of Pharmacy , Nihon University , 7-7-1, Narashinodai , Funabashi , 274-8555 , Chiba , Japan
| | - Toshiaki Makino
- Graduate School of Pharmaceutical Sciences , Nagoya City University , 3-1, Tanabe-Dori , Mizuho-ku, Nagoya 467-8603 , Aichi , Japan
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45
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Eckelmann D, Spiteller M, Kusari S. Spatial-temporal profiling of prodiginines and serratamolides produced by endophytic Serratia marcescens harbored in Maytenus serrata. Sci Rep 2018; 8:5283. [PMID: 29588473 PMCID: PMC5869619 DOI: 10.1038/s41598-018-23538-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Accepted: 03/15/2018] [Indexed: 12/21/2022] Open
Abstract
An endophytic bacterium, Serratia marcescens MSRBB2, isolated from inner bark of a Cameroonian Maytenus serrata plant, was subjected to the OSMAC (One Strain Many Compounds) approach and metabolic profiling using HPLC-HRMSn. We identified 7 prodiginines along with 26 serratamolides. Their biosynthetic pathways were elucidated by feeding with labeled precursors in combination with HRMSn. Dual-culture confrontation/restriction assays of the bacterial endophyte were devised with coexisting fungal endophytes (Pestalotiopsis virgatula, Aspergillus caesiellus and Pichia spp.) as well as with unrelated, non-endophytic fungi belonging to the same genera. The assays were combined with scanning electron microscopy (SEM) as well as matrix-assisted laser desorption ionization imaging high-resolution mass spectrometry (MALDI-imaging-HRMS) for visualizing, both in high spatial and temporal resolution, the distribution and interplay of the compounds during microbial interactions. We demonstrated the effect of prodigiosin produced by endophytic S. marcescens MSRBB2 as an allelochemical that specifically inhibits coexisting endophytic fungi. Our results provide new insights into the physiological and ecological relevance of prodiginines and serratamolides within the context of allelopathy and chemical defense interaction occurring between coexisting endophytes harbored in M. serrata.
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Affiliation(s)
- Dennis Eckelmann
- Institute of Environmental Research (INFU), Department of Chemistry and Chemical Biology, Chair of Environmental Chemistry and Analytical Chemistry, TU Dortmund, Otto-Hahn-Straße 6, 44221, Dortmund, Germany
| | - Michael Spiteller
- Institute of Environmental Research (INFU), Department of Chemistry and Chemical Biology, Chair of Environmental Chemistry and Analytical Chemistry, TU Dortmund, Otto-Hahn-Straße 6, 44221, Dortmund, Germany
| | - Souvik Kusari
- Institute of Environmental Research (INFU), Department of Chemistry and Chemical Biology, Chair of Environmental Chemistry and Analytical Chemistry, TU Dortmund, Otto-Hahn-Straße 6, 44221, Dortmund, Germany.
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46
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Padumadasa C, Xu YM, Wijeratne EMK, Espinosa-Artiles P, U'Ren JM, Arnold AE, Gunatilaka AAL. Cytotoxic and Noncytotoxic Metabolites from Teratosphaeria sp. FL2137, a Fungus Associated with Pinus clausa. JOURNAL OF NATURAL PRODUCTS 2018; 81:616-624. [PMID: 29373790 DOI: 10.1021/acs.jnatprod.7b00838] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A new naphthoquinone, teratosphaerone A (1), four new naphthalenones, namely, teratosphaerone B (2), structurally related to 1, iso-balticol B (3), iso-balticol B-4,9-acetonide (4), and (+)-balticol C (5), a new furanonaphthalenone, (3a S,9 R,9a S)-1(9a),3(3a),9-hexahydromonosporascone (6), and the known metabolite monosporascone (7) were isolated from Teratosphaeria sp. FL2137, a fungal strain inhabiting the internal tissue of recently dead but undecomposed foliage of Pinus clausa. The structures of 1-6 were elucidated on the basis of their spectroscopic data including 2D NMR, and absolute configurations of 2, 3, and 6 were determined by the modified Mosher's ester method. When evaluated in a panel of five tumor cell lines, metabolites 1 and 7 isolated from a cytotoxic fraction of the extract exhibited moderate selectivity for metastatic breast adenocarcinoma cell line MDA-MB-231. Of these, 1 showed cytotoxicity to this cell line with an IC50 of 1.2 ± 0.1 μM.
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Affiliation(s)
- Chayanika Padumadasa
- Natural Products Center, School of Natural Resources and the Environment, College of Agriculture and Life Sciences , University of Arizona , 250 E. Valencia Road , Tucson , Arizona 85706 , United States
- Department of Chemistry, Faculty of Applied Sciences , University of Sri Jayewardenepura , Gangodawila, Nugegoda , Sri Lanka
| | - Ya-Ming Xu
- Natural Products Center, School of Natural Resources and the Environment, College of Agriculture and Life Sciences , University of Arizona , 250 E. Valencia Road , Tucson , Arizona 85706 , United States
| | - E M Kithsiri Wijeratne
- Natural Products Center, School of Natural Resources and the Environment, College of Agriculture and Life Sciences , University of Arizona , 250 E. Valencia Road , Tucson , Arizona 85706 , United States
| | - Patricia Espinosa-Artiles
- Natural Products Center, School of Natural Resources and the Environment, College of Agriculture and Life Sciences , University of Arizona , 250 E. Valencia Road , Tucson , Arizona 85706 , United States
| | - Jana M U'Ren
- Department of Agricultural and Biosystems Engineering, College of Agriculture and Life Sciences , University of Arizona , Tucson , Arizona 85721 , United States
| | - A Elizabeth Arnold
- School of Plant Sciences, College of Agriculture and Life Sciences , University of Arizona , Tucson , Arizona 85721 , United States
| | - A A Leslie Gunatilaka
- Natural Products Center, School of Natural Resources and the Environment, College of Agriculture and Life Sciences , University of Arizona , 250 E. Valencia Road , Tucson , Arizona 85706 , United States
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Abstract
Exploration of structurally novel natural products greatly facilitates the discovery of biologically active pharmacophores that are biologically validated starting points for the development of new drugs. Endophytes that colonize the internal tissues of plant species, have been proven to produce a large number of structurally diverse secondary metabolites. These molecules exhibit remarkable biological activities, including antimicrobial, anticancer, anti-inflammatory and antiviral properties, to name but a few. This review surveys the structurally diverse natural products with new carbon skeletons, unusual ring systems, or rare structural moieties that have been isolated from endophytes between 1996 and 2016. It covers their structures and bioactivities. Biosynthesis and/or total syntheses of some important compounds are also highlighted. Some novel secondary metabolites with marked biological activities might deserve more attention from chemists and biologists in further studies.
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Affiliation(s)
- Han Gao
- Department of Natural Medicine and Pharmacognosy, School of Pharmacy, Qingdao University, Qingdao 266021, China.
| | - Gang Li
- Department of Natural Medicine and Pharmacognosy, School of Pharmacy, Qingdao University, Qingdao 266021, China.
| | - Hong-Xiang Lou
- Department of Natural Medicine and Pharmacognosy, School of Pharmacy, Qingdao University, Qingdao 266021, China.
- Department of Natural Product Chemistry, Key Laboratory of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan 250012, China.
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Plant growth promoting endophytic fungi Asprgillus fumigatus TS1 and Fusarium proliferatum BRL1 produce gibberellins and regulates plant endogenous hormones. Symbiosis 2018. [DOI: 10.1007/s13199-018-0545-4] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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49
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Vallet M, Vanbellingen QP, Fu T, Le Caer JP, Della-Negra S, Touboul D, Duncan KR, Nay B, Brunelle A, Prado S. An Integrative Approach to Decipher the Chemical Antagonism between the Competing Endophytes Paraconiothyrium variabile and Bacillus subtilis. JOURNAL OF NATURAL PRODUCTS 2017; 80:2863-2873. [PMID: 29139291 DOI: 10.1021/acs.jnatprod.6b01185] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
An integrative approach combining traditional natural products chemistry, molecular networking, and mass spectrometry imaging has been undertaken to decipher the molecular dialogue between the fungus Paraconiothyrium variabile and the bacterium Bacillus subtilis, which were isolated as endophytes from the conifer Cephalotaxus harringtonia and are characterized by a strong and mutual antibiosis. From this study, we highlight that bacterial surfactins and a fungal tetronic acid are involved in such competition and that the fungus is able to hydrolyze surfactins to fight against the bacterial partner.
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Affiliation(s)
- Marine Vallet
- Unité Molécules de Communication et Adaptation des Micro-organismes (UMR 7245), Sorbonne Université, Muséum National d'Histoire Naturelle, CNRS , CP 54, 57 rue Cuvier, 75005 Paris, France
| | - Quentin P Vanbellingen
- Institut de Chimie des Substances Naturelles, CNRS UPR2301, Université Paris-Sud, Université Paris-Saclay , Avenue de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Tingting Fu
- Institut de Chimie des Substances Naturelles, CNRS UPR2301, Université Paris-Sud, Université Paris-Saclay , Avenue de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Jean-Pierre Le Caer
- Institut de Chimie des Substances Naturelles, CNRS UPR2301, Université Paris-Sud, Université Paris-Saclay , Avenue de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Serge Della-Negra
- Institut de Physique Nucléaire, UMR8608, IN2P3-CNRS, Université Paris-Sud, Université Paris-Saclay , 91406, Orsay, France
| | - David Touboul
- Institut de Chimie des Substances Naturelles, CNRS UPR2301, Université Paris-Sud, Université Paris-Saclay , Avenue de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Katherine R Duncan
- Strathclyde Institute of Pharmacy and Biomedical Sciences, HW608, University of Strathclyde , 161 Cathedral Street, Glasgow G4 ORE, U.K
| | - Bastien Nay
- Unité Molécules de Communication et Adaptation des Micro-organismes (UMR 7245), Sorbonne Université, Muséum National d'Histoire Naturelle, CNRS , CP 54, 57 rue Cuvier, 75005 Paris, France
| | - Alain Brunelle
- Institut de Chimie des Substances Naturelles, CNRS UPR2301, Université Paris-Sud, Université Paris-Saclay , Avenue de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Soizic Prado
- Unité Molécules de Communication et Adaptation des Micro-organismes (UMR 7245), Sorbonne Université, Muséum National d'Histoire Naturelle, CNRS , CP 54, 57 rue Cuvier, 75005 Paris, France
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Sathiyabama M, Parthasarathy R. Withanolide production by fungal endophyte isolated from Withania somnifera. Nat Prod Res 2017; 32:1573-1577. [DOI: 10.1080/14786419.2017.1389934] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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