Cited by 93Microbial Natural Products and BiosynthesisEvolution and Genetic DynamicsMicrobial Metabolic Engineering and Bioproduction

Exploiting Adaptive Laboratory Evolution of Streptomyces clavuligerus for Antibiotic Discovery and Overproduction

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Charusanti, Pep, Fong, Nicole L., Nagarajan, Harish, Pereira, Alban R., Li, Howard J., Abate, Elisa A., Su, Yongxuan, Gerwick, William H. +1 more·2012·PLoS ONE

Abstract

Adaptation is normally viewed as the enemy of the antibiotic discovery and development process because adaptation among pathogens to antibiotic exposure leads to resistance. We present a method here that, in contrast, exploits the power of adaptation among antibiotic producers to accelerate the discovery of antibiotics. A competition-based adaptive laboratory evolution scheme is presented whereby an antibiotic-producing microorganism is competed against a target pathogen and serially passed over time until the producer evolves the ability to synthesize a chemical entity that inhibits growth of the pathogen. When multiple Streptomyces clavuligerus replicates were adaptively evolved against methicillin-resistant Staphylococcus aureus N315 in this manner, a strain emerged that acquired the ability to constitutively produce holomycin. In contrast, no holomycin could be detected from the unevolved wild-type strain. Moreover, genome re-sequencing revealed that the evolved strain had lost pSCL4, a large 1.8 Mbp plasmid, and acquired several single nucleotide polymorphisms in genes that have been shown to affect secondary metabolite biosynthesis. These results demonstrate that competition-based adaptive laboratory evolution can constitute a platform to create mutants that overproduce known antibiotics and possibly to discover new compounds as well.

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  • malT regulatory mutations, although common in aerobic conditions, were absent during oxygen-limited chemostat growth, where mutations in the glucose permease ptsG were common.

    “Strikingly, the authors also noticed that malT regulatory mutations, although common in aerobic conditions, were absent during oxygen-limited chemostat growth, where mutations in the glucose permease ptsG were common [48].”

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Authors
Charusanti, P., Fong, N. L., Nagarajan, H., Pereira, A. R., Li, H. J., Abate, E. A., Su, Y., Gerwick, W. H., & Palsson, B. O.
Affiliations
  • University of California San Diego (US)
  • Scripps Institution of Oceanography (US)
Venue
PLoS ONE
Published
2012-03-21
Volume
7
Issue
3
Pages
e33727
ISSN
1932-6203 (ISSN-L)
OpenAlex
W1967709900
Cited by
93
References
73
Citations by year
2026: 2 · 2025: 4 · 2024: 3 · 2023: 4 · 2022: 9 · 2021: 10 · 2020: 8 · 2019: 8 · 2018: 8 · 2017: 3 · 2016: 4 · 2015: 4 · 2014: 10 · 2013: 14 · 2012: 1
FWCI
6.83
Type
journal article
Language
en
Open access
Locations
  • PLoS ONE (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Figshare (submittedVersion, cc-by)
Funders
  • Harvard University
  • National Institutes of Health
  • National Institute of General Medical Sciences (R01GM062791, GM 062791, R01GM071808, GM071808)
Topics
  • Health Sciences › Medicine › Pharmacology › Microbial Natural Products and Biosynthesis
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Evolution and Genetic Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Microbial Metabolic Engineering and Bioproduction
Keywords
adaptive laboratory evolution, Streptomyces clavuligerus, antibiotic discovery, antibiotic overproduction, holomycin, methicillin-resistant Staphylococcus aureus, plasmid loss, secondary metabolite biosynthesis, single nucleotide polymorphisms
MeSH terms
Anti-Bacterial Agents, Bacterial Proteins, Biological Evolution, Lactams, Plasmids, Streptomyces, Genome, Bacterial, Polymorphism, Single Nucleotide, Drug Resistance, Bacterial, Methicillin-Resistant Staphylococcus aureus

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