The Gift of Marine Fungi: Abundant Secondary Metabolites

A special issue of Journal of Fungi (ISSN 2309-608X).

Deadline for manuscript submissions: closed (31 October 2024) | Viewed by 4697

Special Issue Editors

State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
Interests: fungal secondary metabolites; marine natural products; drug discovery; genome mining; biosynthesis
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Guest Editor
State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
Interests: biosynthesis; natural products; marine fungi; genome mining; biocatalyst; synthetic biology

Special Issue Information

Dear Colleagues,

Fungi are well-known for their ability to synthesize secondary metabolites with novel scaffolds and diverse bioactivities. Marine-derived fungi, living under extreme environmental conditions such as high salinity, intensely high pressure, absence of sunlight, and deficiency of nutrients, could evolve a more specific metabolic mechanism to produce unique secondary metabolites. Discoveries of new natural products from marine fungi have increased dramatically over the last few decades. Marine-derived fungi have been proven to be a prolific source of biologically active and structurally diverse natural products. This research topic invites submissions of any contributions on bioactive natural products from marine fungi, ranging from the isolation and structure elucidation of new natural products guided by OSMAC strategy or genome mining to biosynthetic pathways of marine fungal natural products.

As Guest Editors for this Special Issue, we invite you to submit your research results on marine fungi as a source of bioactive secondary metabolites.

Dr. Ling Liu
Dr. Mancheng Tang
Guest Editors

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Keywords

  • marine fungi
  • bioactivity
  • structure elucidation
  • natural products
  • new strategies
  • biosynthetic gene clusters

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Published Papers (3 papers)

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Research

9 pages, 2558 KiB  
Communication
Quantitative Monitoring of Cyclic Glycine–Proline in Marine Mangrove-Derived Fungal Metabolites
by Jing Lin, Fei Qin, Zeye Lin, Weijian Lin, Minxin You, Li Xu, Lei Hu and Yung-Husan Chen
J. Fungi 2024, 10(11), 779; https://doi.org/10.3390/jof10110779 - 10 Nov 2024
Viewed by 455
Abstract
This study developed and validated a robust UPLC-MS/MS method for quantifying cyclic glycine–proline (cGP) in mangrove-derived Penicillium and Aspergillus strains. The method demonstrated excellent linearity, precision, and recovery, with detection limits as low as 4.8 ng/mL. Penicillium pedernalense extract achieved a cGP content [...] Read more.
This study developed and validated a robust UPLC-MS/MS method for quantifying cyclic glycine–proline (cGP) in mangrove-derived Penicillium and Aspergillus strains. The method demonstrated excellent linearity, precision, and recovery, with detection limits as low as 4.8 ng/mL. Penicillium pedernalense extract achieved a cGP content of 67.45 ± 1.11 ng/mL, with a corresponding fermentation yield of 29.31 ± 0.61 mg/L. This surpassed Penicillium steckii, which reached a content of 31.71 ± 0.31 ng/mL, with a yield of 8.51 ± 0.15 mg/L. This quantitative approach for metabolite analysis provides a viable method for screening these fungal strains, highlighting their potential for sustainable production of cyclic glycine–proline (cGP). Full article
(This article belongs to the Special Issue The Gift of Marine Fungi: Abundant Secondary Metabolites)
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12 pages, 1412 KiB  
Article
Secondary Metabolites from Marine-Derived Fungus Penicillium rubens BTBU20213035
by Xiuli Xu, Yifei Dong, Jinpeng Yang, Long Wang, Linlin Ma, Fuhang Song and Xiaoli Ma
J. Fungi 2024, 10(6), 424; https://doi.org/10.3390/jof10060424 - 16 Jun 2024
Cited by 2 | Viewed by 1128
Abstract
Two new polyketide derivatives, penirubenones A and B (1 and 2), and two naturally rare amino-bis-tetrahydrofuran derivatives, penirubenamides A and B (3 and 4), together with nine known compounds (513) were isolated from the marine-derived [...] Read more.
Two new polyketide derivatives, penirubenones A and B (1 and 2), and two naturally rare amino-bis-tetrahydrofuran derivatives, penirubenamides A and B (3 and 4), together with nine known compounds (513) were isolated from the marine-derived fungus Penicillium rubens BTBU20213035. The structures were identified by HRESIMS and 1D and 2D NMR analyses, and their absolute configurations were determined by a comparison of experimental and calculated electronic circular dichroism (ECD) spectroscopy and 13C NMR data. We found that 6 exhibited antibacterial activity against Staphylococcus aureus, with an MIC value of 3.125 μg/mL, and 1 and 2 showed synergistic antifungal activity against Candida albicans at 12.5 and 50 μg/mL with 0.0625 μg/mL rapamycin. Full article
(This article belongs to the Special Issue The Gift of Marine Fungi: Abundant Secondary Metabolites)
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13 pages, 2782 KiB  
Article
Development of Marker Recycling Systems for Sequential Genetic Manipulation in Marine-Derived Fungi Spiromastix sp. SCSIO F190 and Aspergillus sp. SCSIO SX7S7
by Yingying Chen, Jiafan Yang, Cunlei Cai, Junjie Shi, Yongxiang Song, Junying Ma and Jianhua Ju
J. Fungi 2023, 9(3), 302; https://doi.org/10.3390/jof9030302 - 26 Feb 2023
Cited by 1 | Viewed by 2223
Abstract
Marine-derived fungi are emerging as prolific workhorses of structurally novel natural products (NPs) with diverse bioactivities. However, the limitation of available selection markers hampers the exploration of cryptic NPs. Recyclable markers are therefore valuable assets in genetic engineering programs for awaking silent SM [...] Read more.
Marine-derived fungi are emerging as prolific workhorses of structurally novel natural products (NPs) with diverse bioactivities. However, the limitation of available selection markers hampers the exploration of cryptic NPs. Recyclable markers are therefore valuable assets in genetic engineering programs for awaking silent SM clusters. Here, both pyrG and amdS-based recyclable marker cassettes were established and successfully applied in marine-derived fungi Aspergillus sp. SCSIO SX7S7 and Spiromastix sp. SCSIO F190, respectively. Using pyrG recyclable marker, a markerless 7S7-∆depH strain with a simplified HPLC background was built by inactivating a polyketide synthase (PKS) gene depH and looping out the pyrG recyclable marker after depH deletion. Meanwhile, an amdS recyclable marker system was also developed to help strains that are difficult to use pyrG marker. By employing the amdS marker, a backbone gene spm11 responsible for one major product of Spiromastix sp. SCSIO F190 was inactivated, and the amdS marker was excised after using, generating a relatively clean F190-∆spm11 strain for further activation of novel NPs. The collection of two different recycle markers will guarantee flexible application in marine-derived fungi with different genetic backgrounds, enabling the exploitation of novel structures in various fungi species with different genome mining strategies. Full article
(This article belongs to the Special Issue The Gift of Marine Fungi: Abundant Secondary Metabolites)
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