A Genomic Survey of the Natural Product Biosynthetic Potential of Actinomycetes Isolated from New Zealand Lichens

ABSTRACT Actinomycetes are prolific producers of industrially valuable and medically important compounds. Historically, the most efficient method of obtaining compounds has been bioactivity-guided isolation and characterization of drug-like molecules from culturable soil actinomycetes. Unfortunately...

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Main Authors: Peng Hou, Vincent V. Nowak, Chanel J. Taylor, Mark J. Calcott, Allison Knight, Jeremy G. Owen
Format: Article
Language:English
Published: American Society for Microbiology 2023-04-01
Series:mSystems
Subjects:
Online Access:https://journals.asm.org/doi/10.1128/msystems.01030-22
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author Peng Hou
Vincent V. Nowak
Chanel J. Taylor
Mark J. Calcott
Allison Knight
Jeremy G. Owen
author_facet Peng Hou
Vincent V. Nowak
Chanel J. Taylor
Mark J. Calcott
Allison Knight
Jeremy G. Owen
author_sort Peng Hou
collection DOAJ
description ABSTRACT Actinomycetes are prolific producers of industrially valuable and medically important compounds. Historically, the most efficient method of obtaining compounds has been bioactivity-guided isolation and characterization of drug-like molecules from culturable soil actinomycetes. Unfortunately, this pipeline has been met with an increasing number of rediscoveries, to the point where it is no longer considered an attractive approach for drug discovery. To address this challenge and to continue finding new compounds, researchers have increasingly focused on alternative environmental niches and screening methods. Here, we report the genetic investigation of actinomycetes from an underexplored source, New Zealand lichens. In this work, we obtain draft genome sequences for 322 lichen-associated actinomycetes. We then explore this genetic resource with an emphasis on biosynthetic potential. By enumerating biosynthetic gene clusters (BGCs) in our data sets and comparing these to various reference collections, we demonstrate that actinomycetes sourced from New Zealand lichens have the genetic capacity to produce large numbers of natural products, many of which are expected to be broadly different from those identified in previous efforts predominantly based on soil samples. Our data shed light on the actinomycete assemblage in New Zealand lichens and demonstrate that lichen-sourced actinobacteria could serve as reservoirs for discovering new secondary metabolites. IMPORTANCE Lichens are home to complex and distinctive microbial cohorts that have not been extensively explored for the ability to produce novel secondary metabolites. Here, we isolate and obtain genome sequence data for 322 actinomycetes from New Zealand lichens. In doing so, we delineate at least 85 potentially undescribed species, and show that lichen associated actinomycetes have the potential to yield many new secondary metabolites, and as such, might serve as a productive starting point for drug discovery efforts.
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spelling doaj.art-fe7a14c330e647c58c37aae6bec0848f2024-08-11T18:54:34ZengAmerican Society for MicrobiologymSystems2379-50772023-04-018210.1128/msystems.01030-22A Genomic Survey of the Natural Product Biosynthetic Potential of Actinomycetes Isolated from New Zealand LichensPeng Hou0Vincent V. Nowak1Chanel J. Taylor2Mark J. Calcott3Allison Knight4Jeremy G. Owen5School of Biological Sciences, Victoria University of Wellington, Wellington, New ZealandSchool of Biological Sciences, Victoria University of Wellington, Wellington, New ZealandSchool of Biological Sciences, Victoria University of Wellington, Wellington, New ZealandSchool of Biological Sciences, Victoria University of Wellington, Wellington, New ZealandDepartment of Botany, Otago University, Dunedin, New ZealandSchool of Biological Sciences, Victoria University of Wellington, Wellington, New ZealandABSTRACT Actinomycetes are prolific producers of industrially valuable and medically important compounds. Historically, the most efficient method of obtaining compounds has been bioactivity-guided isolation and characterization of drug-like molecules from culturable soil actinomycetes. Unfortunately, this pipeline has been met with an increasing number of rediscoveries, to the point where it is no longer considered an attractive approach for drug discovery. To address this challenge and to continue finding new compounds, researchers have increasingly focused on alternative environmental niches and screening methods. Here, we report the genetic investigation of actinomycetes from an underexplored source, New Zealand lichens. In this work, we obtain draft genome sequences for 322 lichen-associated actinomycetes. We then explore this genetic resource with an emphasis on biosynthetic potential. By enumerating biosynthetic gene clusters (BGCs) in our data sets and comparing these to various reference collections, we demonstrate that actinomycetes sourced from New Zealand lichens have the genetic capacity to produce large numbers of natural products, many of which are expected to be broadly different from those identified in previous efforts predominantly based on soil samples. Our data shed light on the actinomycete assemblage in New Zealand lichens and demonstrate that lichen-sourced actinobacteria could serve as reservoirs for discovering new secondary metabolites. IMPORTANCE Lichens are home to complex and distinctive microbial cohorts that have not been extensively explored for the ability to produce novel secondary metabolites. Here, we isolate and obtain genome sequence data for 322 actinomycetes from New Zealand lichens. In doing so, we delineate at least 85 potentially undescribed species, and show that lichen associated actinomycetes have the potential to yield many new secondary metabolites, and as such, might serve as a productive starting point for drug discovery efforts.https://journals.asm.org/doi/10.1128/msystems.01030-22biosynthetic gene clustergenome miningnatural productnonribosomal peptidepolyketide
spellingShingle Peng Hou
Vincent V. Nowak
Chanel J. Taylor
Mark J. Calcott
Allison Knight
Jeremy G. Owen
A Genomic Survey of the Natural Product Biosynthetic Potential of Actinomycetes Isolated from New Zealand Lichens
mSystems
biosynthetic gene cluster
genome mining
natural product
nonribosomal peptide
polyketide
title A Genomic Survey of the Natural Product Biosynthetic Potential of Actinomycetes Isolated from New Zealand Lichens
title_full A Genomic Survey of the Natural Product Biosynthetic Potential of Actinomycetes Isolated from New Zealand Lichens
title_fullStr A Genomic Survey of the Natural Product Biosynthetic Potential of Actinomycetes Isolated from New Zealand Lichens
title_full_unstemmed A Genomic Survey of the Natural Product Biosynthetic Potential of Actinomycetes Isolated from New Zealand Lichens
title_short A Genomic Survey of the Natural Product Biosynthetic Potential of Actinomycetes Isolated from New Zealand Lichens
title_sort genomic survey of the natural product biosynthetic potential of actinomycetes isolated from new zealand lichens
topic biosynthetic gene cluster
genome mining
natural product
nonribosomal peptide
polyketide
url https://journals.asm.org/doi/10.1128/msystems.01030-22
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