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Shady NH, Sobhy SK, Mostafa YA, Yahia R, Glaeser SP, Kämpfer P, El-Katatny MH, Abdelmohsen UR. Phytochemical analysis and anti-infective potential of fungal endophytes isolated from Nigella sativa seeds. BMC Microbiol 2023; 23:343. [PMID: 37974074 PMCID: PMC10652552 DOI: 10.1186/s12866-023-03085-4] [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: 04/03/2023] [Accepted: 10/23/2023] [Indexed: 11/19/2023] Open
Abstract
Endophytic fungi, particularly from higher plants have proven to be a rich source of antimicrobial secondary metabolites. The purpose of this study is to examine the antimicrobial potential of three endophytic fungi Aspergillus sp. SA1, Aspergillus sp. SA2, and Aspergillus sp. SA3, cultivated from Nigella sativa seeds against Staphylococcus aureus (ATCC 9144), Escherichia coli (ATCC 25922), Pseudomonas aeruginosa (ATCC 27853), Klebsiella pneumoniae (ATCC 13883), MRSA (ATCC 33591), and human pathogen Candida albicans (ATCC 10231). Furthermore, the most active cultivated endophytic fungi were molecularly identified via internal transcribed spacer (ITS) sequencing. HR-ESIMS guided approach has been used successfully in chemical profiling of 26 known bioactive secondary metabolites (1-26), which belongs to different classes of natural compounds such as polyketides, benzenoids, quinones, alcohols, phenols or alkaloids. Finally, in-silico interactions within active site of fungal Cyp51 and bacterial DNA gyrase revealed possibility of being a hit-target for such metabolites as antimicrobials.
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Affiliation(s)
- Nourhan Hisham Shady
- Department of Pharmacognosy, Faculty of Pharmacy, Deraya University, New Minia City, Minia, Egypt.
| | - Sara Khalid Sobhy
- Department of Botany and Microbiology, Faculty of Science, Minia University, Minia, 61519, Egypt
- Faculty of Pharmacy, Deraya University, New Minia City, Minia, Egypt
| | - Yaser A Mostafa
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Assiut University, Assiut, 71526, Egypt
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Badr University in Assiut, Assiut, 77771, Egypt
| | - Ramadan Yahia
- Department of Microbiology and immunology, Faculty of Pharmacy, Deraya University, New Minia City, Minia, Egypt
| | - Stefanie P Glaeser
- Institute of Applied Microbiology, Justus-Liebig University Gießen, Gießen, Germany
| | - Peter Kämpfer
- Institute of Applied Microbiology, Justus-Liebig University Gießen, Gießen, Germany
| | - Mo'men H El-Katatny
- Department of Botany and Microbiology, Faculty of Science, Minia University, Minia, 61519, Egypt
| | - Usama Ramadan Abdelmohsen
- Department of Pharmacognosy, Faculty of Pharmacy, Deraya University, New Minia City, Minia, Egypt.
- Department of Pharmacognosy, faculty of pharmacy, Minia university, Minia, Egypt.
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Mast cell death induced by 24(S),25-epoxycholesterol. Exp Cell Res 2010; 316:3272-81. [DOI: 10.1016/j.yexcr.2010.09.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2010] [Revised: 08/11/2010] [Accepted: 09/06/2010] [Indexed: 11/23/2022]
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Frisvad JC, Rank C, Nielsen KF, Larsen TO. Metabolomics of Aspergillus fumigatus. Med Mycol 2008; 47 Suppl 1:S53-71. [PMID: 18763205 DOI: 10.1080/13693780802307720] [Citation(s) in RCA: 112] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
Aspergillus fumigatus is the most important species in Aspergillus causing infective lung diseases. This species has been reported to produce a large number of extrolites, including secondary metabolites, acids, and proteins such as hydrophobins and extracellular enzymes. At least 226 potentially bioactive secondary metabolites have been reported from A. fumigatus that can be ordered into 24 biosynthetic families. Of these families we have detected representatives from the following families of secondary metabolites: fumigatins, fumigaclavines, fumiquinazolines, trypacidin and monomethylsulochrin, fumagillins, gliotoxins, pseurotins, chloroanthraquinones, fumitremorgins, verruculogen, helvolic acids, and pyripyropenes by HPLC with diode array detection and mass spectrometric detection. There is still doubt whether A. fumigatus can produce tryptoquivalins, but all isolates produce the related fumiquinazolines. We also tentatively detected sphingofungins in A. fumigatus Af293 and in an isolate of A. lentulus. The sphingofungins may have a similar role as the toxic fumonisins, found in A. niger. A further number of mycotoxins, including ochratoxin A, and other secondary metabolites have been reported from A. fumigatus, but in those cases either the fungus or its metabolite appear to be misidentified.
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Affiliation(s)
- Jens C Frisvad
- Center for Microbial Biotechnology, DTU Biosys, Technical University of Denmark, Kgs. Lyngby, Denmark.
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Rho MC, Chung MY, Song HY, Kwon OE, Lee SW, Baek JA, Jeune KH, Kim K, Lee HS, Kim YK. Pheophorbide A-methyl ester, Acyl-CoA: cholesterol acyltransferase inhibitor from Diospyros kaki. Arch Pharm Res 2004; 26:716-8. [PMID: 14560918 DOI: 10.1007/bf02976679] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
In the course of our search for Acyl-CoA: cholesterol acyltransferase (ACAT) inhibitors from natural sources, a new type of ACAT inhibitor was isolated from a methanol extract of Diospyros kaki. On the basis of spectral and structural evidence, the compound was identified as pheophorbide A-methyl ester. Pheophorbide A-methyl ester inhibited ACAT activity in a dose dependent manner with an IC50 value of 1.85 microg/mL.
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Affiliation(s)
- Mun-Chual Rho
- Laboratory of Lipid Metabolism, Korea Research Institute of Bioscience and Biotechnology, Taejon, Korea
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Amplification of farnesyl protein transferase inhibitory activity from Aspergillus fumigatus F93 by Plackett-Burman design. Biotechnol Lett 1996. [DOI: 10.1007/bf00129958] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Cytotoxicity of a novel biphenolic compound, bis(2-hydroxy-3-tert-butyl-5-methylphenyl)methane against human tumor cellsin vitro. Arch Pharm Res 1996. [DOI: 10.1007/bf02976242] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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