Multifaceted interactions between the pseudomonads and insects: mechanisms and prospects

Area of Science:

• Microbiology
• Entomology
• Ecology

Background:

• Insects and bacteria are ubiquitous organisms with complex symbiotic associations.
• Pseudomonas bacteria exhibit diverse interactions with insects, including pathogenicity, mutualism, and vectoring.
• Understanding these interactions is crucial for ecological roles and bacterial survival.

Purpose of the Study:

• To provide detailed insights into the multifaceted symbiosis between Pseudomonas bacteria and insects.
• To review the pathogenic and beneficial interactions of Pseudomonas with insects.
• To update on the applications of Pseudomonas and their metabolites as biocontrol agents.

Main Methods:

• Literature review of existing studies on Pseudomonas-insect interactions.
• Summary of known modes of action and virulence factors of entomopathogenic Pseudomonas.
• Analysis of beneficial interactions and vector-symbiont associations.

Main Results:

• Pseudomonas can be pathogenic, beneficial endosymbionts, or vectors for insects.
• Entomopathogenic Pseudomonas strains possess specific virulence factors for insect pathogenicity.
• Beneficial Pseudomonas-insect interactions are documented in limited insect taxa.
• Vector-symbiont associations range from phoresy to dose-dependent parasitism.

Conclusions:

• Pseudomonas bacteria have evolved distinct pathogenic or beneficial relationships with insects.
• Further research is needed to fully understand beneficial Pseudomonas-insect interactions.
• Pseudomonas and their metabolites show potential for integrated pest management strategies.