1
|
Chen HW, Yan LH, Wang XJ, Zhao ZY, Wu X, Li J, Lei XS, Xiong J, Hu JF. Undescribed polyketides from endophytes associated with the critically endangered conifer Abies beshanzuensis. Fitoterapia 2024; 177:106104. [PMID: 38950637 DOI: 10.1016/j.fitote.2024.106104] [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: 04/20/2024] [Revised: 06/21/2024] [Accepted: 06/27/2024] [Indexed: 07/03/2024]
Abstract
Four undescribed polyketides, beshanzones A (1) and B (2) as well as beshanhexanols A (3) and B (4), along with three known ones (5-7) were isolated from the rice fermentation of two endophytic fungi associated with the critically endangered Chinese endemic conifer Abies beshanzuensis. γ-Butyrolactone derivatives 1, 2, and 5 were isolated from Phomopsis sp. BSZ-AZ-2, an interesting strain that drawn our attention this time. The cyclohexanol derivatives 3, 4, 6, and 7 were obtained during a follow-up investigation on Penicillium commune BSZ-P-4-1. The chemical structures including absolute configurations of compounds 1-4 were determined by spectroscopic methods, Mo2(OAc)4 induced electronic circular dichroism (IECD), GIAO NMR calculations and DP4+ probability analyses. In particular, compound 2 contains a novel 5/5 bicyclic ring system, which might be biogenetically derived from the known compound 5 through hydrolysis followed by an Aldol reaction. All isolates were evaluated for their antimicrobial activities against a small panel of bacterial and fungal pathogens. Compounds 6 and 7 showed moderate inhibitory activities against Candida albicans, with MIC values of 16 and 32 μg/mL, respectively.
Collapse
Affiliation(s)
- Hao-Wei Chen
- School of Pharmaceutical Sciences, Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University, Zhejiang 318000, PR China; School of Pharmacy, Fudan University, Shanghai 201203, PR China
| | - Li-Hong Yan
- School of Pharmaceutical Sciences, Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University, Zhejiang 318000, PR China
| | - Xue-Jiao Wang
- School of Pharmaceutical Sciences, Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University, Zhejiang 318000, PR China; School of Pharmacy, Fudan University, Shanghai 201203, PR China
| | - Ze-Yu Zhao
- School of Pharmaceutical Sciences, Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University, Zhejiang 318000, PR China; School of Pharmacy, Fudan University, Shanghai 201203, PR China
| | - Xiying Wu
- School of Pharmaceutical Sciences, Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University, Zhejiang 318000, PR China; School of Pharmacy, Fudan University, Shanghai 201203, PR China
| | - Jiyang Li
- School of Pharmacy, Fudan University, Shanghai 201203, PR China
| | - Xin-Sheng Lei
- School of Pharmacy, Fudan University, Shanghai 201203, PR China
| | - Juan Xiong
- School of Pharmacy, Fudan University, Shanghai 201203, PR China.
| | - Jin-Feng Hu
- School of Pharmaceutical Sciences, Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University, Zhejiang 318000, PR China; School of Pharmacy, Fudan University, Shanghai 201203, PR China.
| |
Collapse
|
2
|
Liu B, Liu K, Chen X, Xiao D, Wang T, Yang Y, Shuai H, Wu S, Yuan L, Chen L. Comparative Transcriptome Analysis Reveals the Interaction of Sugar and Hormone Metabolism Involved in the Root Hair Morphogenesis of the Endangered Fir Abies beshanzuensis. PLANTS (BASEL, SWITZERLAND) 2023; 12:276. [PMID: 36678989 PMCID: PMC9862426 DOI: 10.3390/plants12020276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 12/26/2022] [Accepted: 12/29/2022] [Indexed: 06/17/2023]
Abstract
Abies beshanzuensis, an extremely rare and critically endangered plant with only three wild adult trees globally, is strongly mycorrhizal-dependent, leading to difficulties in protection and artificial breeding without symbiosis. Root hair morphogenesis plays an important role in the survival of mycorrhizal symbionts. Due to the lack of an effective genome and transcriptome of A. beshanzuensis, the molecular signals involved in the root hair development remain unknown, which hinders its endangered mechanism analysis and protection. Herein, transcriptomes of radicles with root hair (RH1) and without root hair (RH0) from A. beshanzuensis in vitro plantlets were primarily established. Functional annotation and differentially expressed gene (DEG) analysis showed that the two phenotypes have highly differentially expressed gene clusters. Transcriptome divergence identified hormone and sugar signaling primarily involved in root hair morphogenesis of A. beshanzuensis. Weighted correlation network analysis (WGCNA) coupled with quantitative real-time PCR (qRT-PCR) found that two hormone-sucrose-root hair modules were linked by IAA17, and SUS was positioned in the center of the regulation network, co-expressed with SRK2E in hormone transduction and key genes related to root hair morphogenesis. Our results contribute to better understanding of the molecular mechanisms of root hair development and offer new insights into deciphering the survival mechanism of A. beshanzuensis and other endangered species, utilizing root hair as a compensatory strategy instead of poor mycorrhizal growth.
Collapse
Affiliation(s)
- Bin Liu
- Department of Horticulture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Ke Liu
- Department of Horticulture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Xiaorong Chen
- Qingyuan Conservation Center of Qianjiangyuan-Baishanzu National Park, Qingyuan 323800, China
| | - Duohong Xiao
- Department of Horticulture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Tingjin Wang
- Department of Horticulture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Yang Yang
- Department of Horticulture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Hui Shuai
- Department of Horticulture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Sumei Wu
- Qingyuan Conservation Center of Qianjiangyuan-Baishanzu National Park, Qingyuan 323800, China
| | - Lu Yuan
- Department of Horticulture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Liping Chen
- Department of Horticulture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China
| |
Collapse
|
3
|
Zhu YX, Ding W, Hu JF, Xiong J, Li J. Beshanzuamide A, an unprecedented prenylated indole alkaloid produced by Aspergillus sp. Y-2 from the critically endangered conifer Abies beshanzuensis. RSC Adv 2022; 12:10534-10539. [PMID: 35425024 PMCID: PMC8985211 DOI: 10.1039/d2ra01578a] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 03/30/2022] [Indexed: 12/25/2022] Open
Abstract
A structurally unprecedented prenylated indole alkaloid, beshanzuamide A (1), together with five known analogues (2–6) were isolated and identified from the endophytic fungus derived from the needles of the critically endangered conifer Abies beshanzuensis. The new structure was determined by extensive spectroscopic methods and quantum chemical calculations of NMR and electronic circular dichroism (ECD) data. Compound 1 features a unique N,O-spiroketal/δ-lactone motif connected to a pyranoindole-derived bicyclo[2.2.2]diazaoctane ring. A plausible biogenetic pathway for the assembly of 1 was proposed. A structurally unprecedented prenylated indole alkaloid, together with five known analogues, was isolated from an endophytic fungus associated with the endangered conifer Abies beshanzuensis.![]()
Collapse
Affiliation(s)
- Yuan-Xing Zhu
- Department of Biological Medicines, School of Pharmacy, Fudan University Shanghai 201203 China
| | - Wenxin Ding
- Department of Biological Medicines, School of Pharmacy, Fudan University Shanghai 201203 China
| | - Jin-Feng Hu
- Department of Natural Medicines, School of Pharmacy, Fudan University Shanghai 201203 China
| | - Juan Xiong
- Department of Natural Medicines, School of Pharmacy, Fudan University Shanghai 201203 China
| | - Jiyang Li
- Department of Biological Medicines, School of Pharmacy, Fudan University Shanghai 201203 China
| |
Collapse
|
4
|
Prajapati J, Goswami D, Rawal RM. Endophytic fungi: A treasure trove of novel anticancer compounds. CURRENT RESEARCH IN PHARMACOLOGY AND DRUG DISCOVERY 2021; 2:100050. [PMID: 34909676 PMCID: PMC8663939 DOI: 10.1016/j.crphar.2021.100050] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Revised: 08/18/2021] [Accepted: 08/31/2021] [Indexed: 12/18/2022] Open
Abstract
Cancer is a multifactorial disease with a convoluted genesis and progression. The emergence of multidrug resistance to presently be offered drug and relapse is by far, the most critical concern to tackle this deteriorating disease. Henceforth, there is undeniably an inflated necessity for safe, promising, and less harmful new anticancer drugs. Natural compounds from various sources like plants, animals, and microorganisms have occupied a center stage in drug discovery due to their tremendous chemical diversity and potential as therapeutic agents. Endophytic microbes are symbiotically associated with plants and have been proven to produce novel or analogues of host bioactive metabolites exhibiting a variety of biological activities including anticancer activity. This review emphasizes on structurally diverse unprecedented anticancer natural compounds that have been reported exclusively from endophytic fungi from 2016 to 2020. It covers chemical nature of metabolites, its fungal source associated with terrestrial, as well as marine plants and anticancer activity based on their cytotoxicity profile against various cancer cell lines. Many of these fungal metabolites with promising anticancer activity can be used as lead molecules for in silico experiments and deserve special attention from scientists for further in vitro and clinical research.
Collapse
Affiliation(s)
- Jignesh Prajapati
- Department of Biochemistry & Forensic Science, University School of Sciences, Gujarat University, Ahmedabad, 380009, Gujarat, India
| | - Dweipayan Goswami
- Department of Microbiology & Biotechnology, University School of Sciences, Gujarat University, Ahmedabad, 380009, Gujarat, India
| | - Rakesh M. Rawal
- Department of Biochemistry & Forensic Science, University School of Sciences, Gujarat University, Ahmedabad, 380009, Gujarat, India
| |
Collapse
|
5
|
Zhu YX, Peng C, Ding W, Hu JF, Li J. Chromenopyridin A, a new N-methoxy-1-pyridone alkaloid from the endophytic fungus Penicillium nothofagi P-6 isolated from the critically endangered conifer Abies beshanzuensis. Nat Prod Res 2020; 36:2049-2055. [PMID: 33185141 DOI: 10.1080/14786419.2020.1844700] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
A new N-methoxy-1-pyridone alkaloid [chromenopyridin A (1)] and four known compounds (2-5) were isolated and identified from the endophytic fungus Penicillium nothofagi P-6, which was derived from the bark of the critically endangered conifer Abies beshanzuensis. Their structures were elucidated by extensive spectroscopic analyses and single-crystal X-ray diffraction. Among the isolates, compound 1 showed considerable cytotoxicities against the A549 and Hela human cancer cell lines, with IC50 values of 14.7 and 11.3 μM. In addition, compounds 1 and 4 exhibited potent antibacterial activity against Staphylococcus aureus with MIC values of 62.5 and 15.6 μg/mL, respectively.
Collapse
Affiliation(s)
- Yuan-Xing Zhu
- Department of Biological Medicines, School of Pharmacy, Fudan University, Shanghai, PR China
| | - Cheng Peng
- Department of Biological Medicines, School of Pharmacy, Fudan University, Shanghai, PR China
| | - Wenxin Ding
- Department of Biological Medicines, School of Pharmacy, Fudan University, Shanghai, PR China
| | - Jin-Feng Hu
- Department of Natural Products Chemistry, School of Pharmacy, Fudan University, Shanghai, PR China
| | - Jiyang Li
- Department of Biological Medicines, School of Pharmacy, Fudan University, Shanghai, PR China
| |
Collapse
|