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Azteca ants maintain unique microbiomes across functionally distinct nest chambers.

Jane M Lucas1, Anne A Madden2, Clint A Penick3

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Summary
This summary is machine-generated.

Ant nests harbor distinct microbial communities compared to their surroundings. Azteca alfari ants manage their nest microbiome, reducing bacterial richness in nurseries and suppressing some pathogens.

Keywords:
AztecaCecropiamicrobemicrobiomemyrmecophyte

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Area of Science:

  • Microbial ecology
  • Insect behavior
  • Symbiotic relationships

Background:

  • The microbiome of built environments significantly impacts inhabitant health, with most research focusing on human structures.
  • Ants construct complex nests, yet their internal microbiomes remain largely unstudied.
  • Understanding ant nest microbiomes offers insights into diverse built environment health.

Purpose of the Study:

  • To investigate the bacterial and fungal communities within distinct chambers of Azteca alfari ant nests.
  • To compare the microbiomes inside ant nests with the external environment.
  • To test if ants maintain distinct microbiomes across different nest functions and suppress pathogens.

Main Methods:

  • Sampling of microbial communities from internal nest chambers and external environments of Azteca alfari.
  • Analysis of bacterial and fungal DNA to characterize microbial composition.
  • Comparison of microbial diversity and community structure between different locations and nest chambers.

Main Results:

  • Distinct microbial communities were observed between internal nest locations and the external environment.
  • Azteca alfari ants maintained lower bacterial richness in their nursery chambers.
  • While animal pathogens were suppressed in inhabited chambers, plant pathogens were not, refuting the hypothesis of host tree defense.

Conclusions:

  • Ant nests, like human homes, harbor unique indoor microbiomes influenced by their inhabitants.
  • Ants actively regulate their nest's microbial environment, notably reducing bacteria in nurseries.
  • Ants may prevent the proliferation of insect-specific pathogens, highlighting species-specific microbiome management strategies.