1
|
Wennrich JP, Ebada SS, Sepanian E, Holzenkamp C, Khalid SJ, Schrey H, Maier W, Mándi A, Kurtán T, Ashrafi S, Stadler M. Omnipolyphilins A and B: Chlorinated Cyclotetrapeptides and Naphtho-α-pyranones from the Plant Nematode-Derived Fungus Polyphilus sieberi. J Agric Food Chem 2024; 72:6998-7009. [PMID: 38507729 PMCID: PMC10995996 DOI: 10.1021/acs.jafc.4c00572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 02/29/2024] [Accepted: 03/05/2024] [Indexed: 03/22/2024]
Abstract
Chemical exploration for two isolates of the recently described ascomycete species Polyphilus sieberi, derived from the eggs of the plant parasitic nematode Heterodera filipjevi, afforded the identification of many compounds that belong to various metabolite families: two previously undescribed chlorinated cyclotetrapeptides, omnipolyphilins A (1) and B (2), one new pyranonaphthoquinone, ventiloquinone P (3), a 6,6'-binaphto-α-pyranone dimer, talaroderxine D (4) in addition to nine known metabolites (5-13) were isolated from this biocontrol candidate. All isolated compounds were characterized by comprehensive 1D, 2D NMR, and HR-ESI-MS analyses. The absolute configurations of the cyclotetrapeptides were determined by a combination of advanced Marfey's method, ROE correlation aided by conformational analysis, and TDDFT-ECD calculations, while ECD calculations, Mosher's method, and experimental ECD spectra were used for ventiloquinone P (3) and talaroderxine D (4). Among the isolated compounds, talaroderxine D (4) showed potent antimicrobial activities against Bacillus subtilis and Staphylococcus aureus with MIC values of 2.1 and 8.3 μg mL-1, respectively. Additionally, promising inhibitory effects on talaroderxine D (4) against the formation of S. aureus biofilms were observed up to a concentration of 0.25 μg mL-1. Moreover, ophiocordylongiiside A (10) showed activity against the free-living nematode Caenorhabditis elegans.
Collapse
Affiliation(s)
- Jan-Peer Wennrich
- Department
of Microbial Drugs, Helmholtz Centre for
Infection Research GmbH (HZI) and German Centre for Infection Research
(DZIF), Inhoffenstraße 7, 38124 Braunschweig, Germany
- Institute
of Microbiology, Technische Universität
Braunschweig, Spielmannstraße
7, 38106 Braunschweig, Germany
| | - Sherif S. Ebada
- Department
of Microbial Drugs, Helmholtz Centre for
Infection Research GmbH (HZI) and German Centre for Infection Research
(DZIF), Inhoffenstraße 7, 38124 Braunschweig, Germany
- Department
of Pharmacognosy, Faculty of Pharmacy, Ain
Shams University, 11566 Cairo, Egypt
| | - Ellen Sepanian
- Department
of Microbial Drugs, Helmholtz Centre for
Infection Research GmbH (HZI) and German Centre for Infection Research
(DZIF), Inhoffenstraße 7, 38124 Braunschweig, Germany
| | - Caren Holzenkamp
- Department
of Microbial Drugs, Helmholtz Centre for
Infection Research GmbH (HZI) and German Centre for Infection Research
(DZIF), Inhoffenstraße 7, 38124 Braunschweig, Germany
- Institute
of Microbiology, Technische Universität
Braunschweig, Spielmannstraße
7, 38106 Braunschweig, Germany
| | - Syeda J. Khalid
- Department
of Microbial Drugs, Helmholtz Centre for
Infection Research GmbH (HZI) and German Centre for Infection Research
(DZIF), Inhoffenstraße 7, 38124 Braunschweig, Germany
- Institute
of Microbiology, Technische Universität
Braunschweig, Spielmannstraße
7, 38106 Braunschweig, Germany
| | - Hedda Schrey
- Department
of Microbial Drugs, Helmholtz Centre for
Infection Research GmbH (HZI) and German Centre for Infection Research
(DZIF), Inhoffenstraße 7, 38124 Braunschweig, Germany
- Institute
of Microbiology, Technische Universität
Braunschweig, Spielmannstraße
7, 38106 Braunschweig, Germany
| | - Wolfgang Maier
- Institute
for Epidemiology and Pathogen Diagonstics, Julius Kühn Institut (JKI) - Federal Research Center for Cultivated
Plants, Messeweg 11-12, 38104 Braunschweig, Germany
| | - Attila Mándi
- Department
of Organic Chemistry, University of Debrecen, P.O. Box 400, 4002 Debrecen, Hungary
| | - Tibor Kurtán
- Department
of Organic Chemistry, University of Debrecen, P.O. Box 400, 4002 Debrecen, Hungary
| | - Samad Ashrafi
- Institute
for Epidemiology and Pathogen Diagonstics, Julius Kühn Institut (JKI) - Federal Research Center for Cultivated
Plants, Messeweg 11-12, 38104 Braunschweig, Germany
- Institute
for Crop and Soil Science, Julius Kühn
Institute (JKI) − Federal Research Centre for Cultivated Plants, Bundesallee 58, 38116 Braunschweig, Germany
| | - Marc Stadler
- Department
of Microbial Drugs, Helmholtz Centre for
Infection Research GmbH (HZI) and German Centre for Infection Research
(DZIF), Inhoffenstraße 7, 38124 Braunschweig, Germany
- Institute
of Microbiology, Technische Universität
Braunschweig, Spielmannstraße
7, 38106 Braunschweig, Germany
| |
Collapse
|
2
|
Phutthacharoen K, Toshe R, Khalid SJ, Llanos-López NA, Wennrich JP, Schrey H, Ebada SS, Hyde KD, Stadler M. Lachnuoic Acids A-F: Ambuic Acid Congeners from a Saprotrophic Lachnum Species. Chem Biodivers 2024; 21:e202400385. [PMID: 38421379 DOI: 10.1002/cbdv.202400385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 02/28/2024] [Accepted: 02/29/2024] [Indexed: 03/02/2024]
Abstract
Chemical prospection of an extract derived from a saprotrophic fungus Lachnum sp. IW157 resulted in the isolation and characterization of six unprecedentedly reported ambuic acid analogues named lachnuoic acids A-F (1-6). Chemical structures of 1-6 were determined based on comprehensive 1D and 2D NMR spectroscopic analyses together with HR-ESI-MS spectrometry. The relative configurations of 1-3 were defined by ROESY spectroscopic analyses while their absolute configurations were unambiguously determined by Mosher's esters method. All isolated compounds were subjected to cytotoxic, antimicrobial, antibiofilm and nematicidal activity assays where only lachnuoic acid A (1) revealed potent antimicrobial activity against Staphylococcus aureus and Bacillus subtilis at MIC values of 16.6 and 8.3 μg/mL, respectively.
Collapse
Affiliation(s)
- Kunthida Phutthacharoen
- Department of Microbial Drugs, Helmholtz Centre for Infection Research GmbH (HZI), Inhoffenstraße 7, 38124, Braunschweig, Germany
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand
| | - Rita Toshe
- Department of Microbial Drugs, Helmholtz Centre for Infection Research GmbH (HZI), Inhoffenstraße 7, 38124, Braunschweig, Germany
- Institute of Microbiology, Technische Universität Braunschweig, Spielmannstraße 7, 38106, Braunschweig, Germany
| | - Syeda J Khalid
- Department of Microbial Drugs, Helmholtz Centre for Infection Research GmbH (HZI), Inhoffenstraße 7, 38124, Braunschweig, Germany
- Institute of Microbiology, Technische Universität Braunschweig, Spielmannstraße 7, 38106, Braunschweig, Germany
| | - Natalia A Llanos-López
- Department of Microbial Drugs, Helmholtz Centre for Infection Research GmbH (HZI), Inhoffenstraße 7, 38124, Braunschweig, Germany
- Institute of Microbiology, Technische Universität Braunschweig, Spielmannstraße 7, 38106, Braunschweig, Germany
| | - Jan-Peer Wennrich
- Department of Microbial Drugs, Helmholtz Centre for Infection Research GmbH (HZI), Inhoffenstraße 7, 38124, Braunschweig, Germany
- Institute of Microbiology, Technische Universität Braunschweig, Spielmannstraße 7, 38106, Braunschweig, Germany
| | - Hedda Schrey
- Department of Microbial Drugs, Helmholtz Centre for Infection Research GmbH (HZI), Inhoffenstraße 7, 38124, Braunschweig, Germany
- Institute of Microbiology, Technische Universität Braunschweig, Spielmannstraße 7, 38106, Braunschweig, Germany
| | - Sherif S Ebada
- Department of Microbial Drugs, Helmholtz Centre for Infection Research GmbH (HZI), Inhoffenstraße 7, 38124, Braunschweig, Germany
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University, 11566, Cairo, Egypt
| | - Kevin D Hyde
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand
- School of Science, Mae Fah Luang University, Chiang Rai, 57100, Thailand
| | - Marc Stadler
- Department of Microbial Drugs, Helmholtz Centre for Infection Research GmbH (HZI), Inhoffenstraße 7, 38124, Braunschweig, Germany
- Institute of Microbiology, Technische Universität Braunschweig, Spielmannstraße 7, 38106, Braunschweig, Germany
| |
Collapse
|
3
|
Phutthacharoen K, Khalid SJ, Schrey H, Hyde KD, Stadler M, Ebada SS. Diaporphasines E and F: New Polyketides from the Saprotrophic Fungus Lachnum sp. IW157 Growing on the Reed Grass Phragmites communis. ACS Omega 2023; 8:41689-41695. [PMID: 37970032 PMCID: PMC10633876 DOI: 10.1021/acsomega.3c05984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 09/21/2023] [Accepted: 10/17/2023] [Indexed: 11/17/2023]
Abstract
Chemical investigation for the mycelial extract of a saprotrophic fungus Lachnum sp. IW157 growing on the common reed grass Phragmites communis afforded the identification of two polyketide metabolites diaporphasines E (1) and F (2). Chemical structures of isolated compounds were unambiguously elucidated based on extensive 1D and 2D NMR spectral analyses in addition to their high-resolution mass spectrometry. The isolated compounds were assessed for their cytotoxicity and antimicrobial and biofilm inhibitory activities. While compound 1 revealed potent cytotoxicity against the tested cell lines L929 and KB3.1 with IC50 values of 0.9 and 3.7 μM, respectively, compound 2 exhibited moderate effects on the formation of S. aureus biofilms at 31.25 μg/mL.
Collapse
Affiliation(s)
- Kunthida Phutthacharoen
- Department
of Microbial Drugs, Helmholtz Centre for
Infection Research GmbH (HZI), Inhoffenstraße 7, Braunschweig 38124, Germany
- Center
of Excellence in Fungal Research, Mae Fah
Luang University, Chiang
Rai 57100, Thailand
- School
of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
| | - Syeda J. Khalid
- Department
of Microbial Drugs, Helmholtz Centre for
Infection Research GmbH (HZI), Inhoffenstraße 7, Braunschweig 38124, Germany
- Institute
of Microbiology, Technische Universität
Braunschweig, Spielmannstraße
7, Braunschweig 38106, Germany
| | - Hedda Schrey
- Department
of Microbial Drugs, Helmholtz Centre for
Infection Research GmbH (HZI), Inhoffenstraße 7, Braunschweig 38124, Germany
- Institute
of Microbiology, Technische Universität
Braunschweig, Spielmannstraße
7, Braunschweig 38106, Germany
| | - Kevin D. Hyde
- Center
of Excellence in Fungal Research, Mae Fah
Luang University, Chiang
Rai 57100, Thailand
- School
of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
| | - Marc Stadler
- Department
of Microbial Drugs, Helmholtz Centre for
Infection Research GmbH (HZI), Inhoffenstraße 7, Braunschweig 38124, Germany
- Institute
of Microbiology, Technische Universität
Braunschweig, Spielmannstraße
7, Braunschweig 38106, Germany
| | - Sherif S. Ebada
- Department
of Microbial Drugs, Helmholtz Centre for
Infection Research GmbH (HZI), Inhoffenstraße 7, Braunschweig 38124, Germany
- Department
of Pharmacognosy, Faculty of Pharmacy, Ain
Shams University, Cairo 11566, Egypt
| |
Collapse
|