Parasitism by Entomopathogenic Fungi and Insect Host Defense Strategies

Dinghai Zhang1, Haidi Qi1, Feng Zhang2

  • 1Centre for Quantitative Biology, College of Science, Gansu Agricultural University, Lanzhou 730070, China.

Microorganisms
|February 26, 2025
PubMed

Insights

Entomopathogenic fungi are effective biopesticides with low environmental impact. This review classifies these fungi and explores insect resistance strategies and fungal pathogenicity, highlighting co-evolution and future research directions.

Area of Science:

  • Mycology
  • Entomology
  • Biocontrol

Background:

  • Entomopathogenic fungi are insect pathogens with high efficacy and minimal environmental impact.
  • They are valuable biopesticides for sustainable pest management.
  • Understanding their interactions with insects is crucial for effective application.

Purpose of the Study:

  • To classify entomopathogenic fungi based on infection processes, host behavioral changes, and spore transmission.
  • To review insect defense strategies against fungal pathogens.
  • To discuss fungal pathogenicity and insect-fungal co-evolution.

Main Methods:

  • Classification of entomopathogenic fungi by infection stages.
  • Review of insect physical, immune, and behavioral defenses.
  • Analysis of fungal pathogenic mechanisms and co-evolutionary dynamics.

Main Results:

  • Categorization of fungal infection cycles and transmission routes.
  • Identification of diverse insect resistance mechanisms.
  • Elucidation of the intricate co-evolutionary relationship between fungi and insects.

Conclusions:

  • Future research should focus on insect population density and environmental spore concentration for disease outbreak prediction.
  • Entomopathogenic fungi offer a sustainable alternative to chemical pesticides.
  • Further investigation into host-pathogen interactions can optimize biocontrol strategies.

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