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review · Marine Drugs

Secondary Metabolites, Biological Activities, and Industrial and Biotechnological Importance of Aspergillus sydowii

202343 citationsOpen accessBritish University in Egypt

In plain language

Aspergillus sydowii is a widespread, salt-tolerant marine fungus known for causing disease in sea fan corals, but it also produces a wide array of useful natural compounds and industrial enzymes. A synthesis of research from 1975 to 2023 identifies over 245 distinct metabolites generated by this organism, encompassing alkaloids, terpenes, xanthones, sterols, and polyketides that exhibit diverse biological activities. Beyond small molecules, the fungus yields multiple commercially relevant enzymes, including lipases, cellulases, amylases, xylanases, keratinases, and tannases. It also demonstrates functional capability in biocatalysis and environmental bioremediation. These biochemical attributes position the fungus as a notable resource for bioprocesses and active compound discovery. The collected evidence highlights how an organism often studied for its ecological impact can serve as a multi-purpose platform for green chemistry, environmental clean-up, and chemical synthesis across varied industrial sectors.

Key takeaways

  • Aspergillus sydowii produces more than 245 identified secondary metabolites with diverse biological activities, including alkaloids, terpenes, and polyketides.
  • The fungus yields several industrially important enzymes such as amylases, lipases, cellulases, tannases, and keratinases.
  • The organism demonstrates functional capacity for environmental bioremediation and the biocatalysis of chemical reactions.
  • Alongside its biotechnological value, the fungus is an established marine pathogen capable of causing aspergillosis and mortality in sea fan corals.

Why it matters

Marine microorganisms represent an abundant source of chemical diversity for solving technological challenges. Although Aspergillus sydowii is frequently recognised for damaging coral reef ecosystems, its broad suite of enzymes and bioactive metabolites offers sustainable options for eco-friendly manufacturing, chemical synthesis, and pharmaceutical discovery. Understanding these properties enables researchers to harness marine biodiversity for beneficial industrial and environmental programmes.

Commercialisation angle

The reported findings point to potential uses in pharmaceuticals, agriculture, industrial biocatalysis, and environmental bioremediation. The primary beneficiaries are likely to be industrial biotechnologists, chemical manufacturers, and agrochemical or drug discovery teams seeking lead compounds or processing enzymes. Because the evidence stems from a literature review of laboratory research conducted between 1975 and 2023, the associated technologies appear to be at an early stage, requiring significant testing and scale-up before commercialisation.

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Abstract

Marine-derived fungi are renowned as a source of astonishingly significant and synthetically appealing metabolites that are proven as new lead chemicals for chemical, pharmaceutical, and agricultural fields. Aspergillus sydowii is a saprotrophic, ubiquitous, and halophilic fungus that is commonly found in different marine ecosystems. This fungus can cause aspergillosis in sea fan corals leading to sea fan mortality with subsequent changes in coral community structure. Interestingly, A. sydowi is a prolific source of distinct and structurally varied metabolites such as alkaloids, xanthones, terpenes, anthraquinones, sterols, diphenyl ethers, pyrones, cyclopentenones, and polyketides with a range of bioactivities. A. sydowii has capacity to produce various enzymes with marked industrial and biotechnological potential, including α-amylases, lipases, xylanases, cellulases, keratinases, and tannases. Also, this fungus has the capacity for bioremediation as well as the biocatalysis of various chemical reactions. The current work aimed at focusing on the bright side of this fungus. In this review, published studies on isolated metabolites from A. sydowii, including their structures, biological functions, and biosynthesis, as well as the biotechnological and industrial significance of this fungus, were highlighted. More than 245 compounds were described in the current review with 134 references published within the period from 1975 to June 2023.

Research topics

  • Enzyme Production and Characterization
  • Microbial Natural Products and Biosynthesis
  • Enzyme Catalysis and Immobilization

Sustainable Development Goals

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DOI: 10.3390/md21080441

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