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Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
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Prospecting Microbial Strains for Bioremediation and Probiotics Development for Metaorganism Research and Preservation
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Guidelines toward ecologically-informed bioprospecting for microbial plastic degradation.

Feng M Cai1, Siqi Jiang2, Paul Daly3

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|April 30, 2025
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Summary

This review explores microbial bioprospecting for plastic-degrading enzymes in diverse habitats. It highlights potential pathogens and emphasizes biosecurity and educational outreach for sustainable plastic waste management.

Keywords:
ApisBiosafetyCuticleCutinDNA barcodingEnzyme engineeringEpicuticular biofilmParengyodontium albumPhyllospherePlastisphere

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Area of Science:

  • Environmental Microbiology
  • Biotechnology
  • Polymer Science

Background:

  • Plastic waste poses a significant environmental challenge, necessitating sustainable management solutions.
  • Biological degradation using microbial enzymes offers a promising alternative to conventional methods.
  • Bioprospecting aims to discover microorganisms with enzymes capable of breaking down plastics.

Purpose of the Study:

  • To review ecologically-informed bioprospecting strategies for plastic-degrading enzymes.
  • To identify promising natural and anthropogenic habitats for microbial discovery.
  • To address biosecurity concerns and highlight the educational value of bioprospecting.

Main Methods:

  • Literature review of bioprospecting approaches for plastic-degrading enzymes.
  • Analysis of microbial enzymes like PETases and cutinases from various environments.
  • Assessment of potential risks associated with opportunistic microorganisms.

Main Results:

  • Natural habitats (e.g., insect polyesters, plant biofilms, aquatic ecosystems) and anthropogenic sites (e.g., plastisphere) are rich sources of plastic-degrading enzymes.
  • Potent enzymes like PETases and cutinases have been identified and are used in biotechnology.
  • Bioprospecting in artificial environments can yield opportunistic pathogens, requiring strict biosecurity measures.

Conclusions:

  • Bioprospecting in diverse habitats, including understudied natural ones, can uncover novel enzymes and microorganisms for plastic waste treatment.
  • Interdisciplinary collaboration and stringent biosecurity protocols are crucial for safe and effective bioprospecting.
  • Educational initiatives can engage future scientists in addressing plastic pollution through microbial solutions.