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Phytotoxic compounds from endophytic fungi.

Martha Lydia Macías-Rubalcava1, Monserrat Yesenia Garrido-Santos2

  • 1Instituto de Química, Departamento de Productos Naturales, Universidad Nacional Autónoma de México (UNAM), Ciudad Universitaria, Delegación Coyoacán, 04510, Ciudad de México, Mexico. mmacias@iquimica.unam.mx.

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Summary

Endophytic fungi produce bioactive compounds that can control weeds, offering a safer alternative to traditional herbicides. These natural compounds show significant potential for sustainable agriculture and weed management strategies.

Keywords:
BioherbicidesEndophytic fungusHerbicidePhytotoxic effectPhytotoxicitySecondary metabolitesWeed control

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Area of Science:

  • Agricultural Science
  • Mycology
  • Biotechnology

Background:

  • Weeds cause significant crop losses, and traditional herbicides lead to resistance and environmental concerns.
  • Bioherbicides derived from natural sources offer a sustainable alternative with reduced toxicological impact.
  • Endophytic fungi, living within plant tissues, are increasingly recognized for producing bioactive compounds.

Purpose of the Study:

  • To review secondary metabolites from endophytic fungi with phytotoxic activity for potential bioherbicide development.
  • To highlight the potential of volatile and nonvolatile compounds produced by endophytic fungi in weed control.
  • To consolidate information on endophytic fungi as a source of novel bioherbicides.

Main Methods:

  • Literature review of scientific publications on endophytic fungi and their metabolites.
  • Compilation of data on 100 nonvolatile secondary metabolites and over 20 volatile organic compounds.
  • Analysis of compounds from 28 endophytic fungal isolates across 21 host plant families from 8 countries.

Main Results:

  • Endophytic fungi synthesize a diverse array of secondary metabolites with significant phytotoxic properties.
  • Both volatile and nonvolatile compounds produced by these fungi demonstrate potent weed-control capabilities.
  • A broad spectrum of compounds from various fungal isolates has been identified for agricultural applications.

Conclusions:

  • Endophytic fungi represent a promising and sustainable source for developing novel bioherbicides.
  • The identified metabolites can be further explored for effective and environmentally friendly weed management.
  • Exploiting endophytic fungi offers a dual benefit of weed control and potential host plant protection.