Developmental stages and gut microenvironments influence gut microbiota dynamics in the invasive beetle <i>Popillia japonica</i> Newman (Coleoptera: Scarabaeidae) - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Environmental Microbiology Année : 2019

Developmental stages and gut microenvironments influence gut microbiota dynamics in the invasive beetle Popillia japonica Newman (Coleoptera: Scarabaeidae)

Nizar Goda
  • Fonction : Auteur
Giuseppe Mazza
  • Fonction : Auteur
Sumer Alali
Fiorella Florian
  • Fonction : Auteur
Fabrizia Gionechetti
  • Fonction : Auteur
Matteo Callegari
  • Fonction : Auteur
Elena Gonella
  • Fonction : Auteur
Giulia Magoga
Marco Fusi
  • Fonction : Auteur
Elena Crotti
Daniele Daffonchio
Alberto Alma
  • Fonction : Auteur
Francesco Paoli
  • Fonction : Auteur
Pio Federico Roversi
  • Fonction : Auteur
Leonardo Marianelli
  • Fonction : Auteur
Matteo Montagna

Résumé

Popillia japonica Newman (Coleoptera: Scarabaeidae) is a highly polyphagous invasive beetle originating from Japan. This insect is highly resilient and able to rapidly adapt to new vegetation. Insect-associated microorganisms can play important roles in insect physiology, helping their hosts to adapt to changing conditions and potentially contributing to an insect's invasive potential. Such symbiotic bacteria can be part of a core microbiota that is stably transmitted throughout the host's life cycle or selectively recruited from the environment at each developmental stage. The aim of this study was to investigate the origin, stability, and turnover of the bacterial communities associated with an invasive population of P. japonica from Italy. Our results demonstrate that soil microbes represent an important source of gut bacteria for P. japonica larvae, but as the insect develops, its gut microbiota richness and diversity decreased substantially, paralleled by changes in community composition. Notably, only 16.75% of the soil bacteria present in larvae are maintained until the adult stage. We further identified the micro-environments of different gut sections as an important factor shaping microbiota composition in this species, likely due to differences in pH, oxygen availability, and redox potential. In addition, P. japonica also harbored a stable bacterial community across all developmental stages, consisting of taxa well known for the degradation of plant material, namely the families Ruminococcaceae, Christensenellaceae, and Lachnospiraceae. Interestingly, the family Christensenellaceae had so far been observed exclusively in humans. However, the Christensenellaceae operational taxonomic units found in P. japonica belong to different taxonomic clades within this family.
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Origine : Publication financée par une institution
Licence : CC BY - Paternité

Dates et versions

hal-04470006 , version 1 (21-02-2024)

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Bessem Chouaia, Nizar Goda, Giuseppe Mazza, Sumer Alali, Fiorella Florian, et al.. Developmental stages and gut microenvironments influence gut microbiota dynamics in the invasive beetle Popillia japonica Newman (Coleoptera: Scarabaeidae). Environmental Microbiology, 2019, 21 (11), pp.4343 - 4359. ⟨10.1111/1462-2920.14797⟩. ⟨hal-04470006⟩
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