Natural roles of nonribosomal peptide metabolites in fungi
Mycoscience(2020)
摘要
Over 90 years have passed since Alexander Fleming's discovery of penicillin, the first recognized, naturally occurring antibiotic. Penicillin is a representative of a group of metabolites produced by large multienzyme complexes [nonribosomal peptide synthetases (NRPSs)] in a ribosome-independent fashion. Nonribosomal peptides (NRPs) are structurally diverse metabolites produced almost exclusively by bacteria and fungi. NRPs include bioactive compounds useful for pharmaceutical applications (e.g., antibiotics, antitumor compounds, and immunosuppressants) and therefore much progress has been made in our understanding of medically relevant characteristics of NRPs in the past decades. Natural roles of NRP metabolites, on the other hand, have been largely ignored, and much less is known about the biological/physiological significance of NRPs under natural settings. In the present review, we summarize past and current work on natural functions of NRPs in their fungal producers, with a focus on virulence, development, and stress tolerance, and highlight the diverse roles these small peptide metabolites play. Some NRPs are involved in interactions with host organisms, others work in fungus-environment interfaces, and still others are crucial for vegetative and reproductive development of the producing fungi.
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关键词
Communication,Development,Siderophore,Stress,Virulence
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