A perspective on insect-microbe holobionts facing thermal fluctuations in a climate-change context.

Autor: Iltis C; Earth and Life Institute, Biodiversity Research Center, Université catholique de Louvain, Croix du Sud 4-5, Louvain-la-Neuve, 1348, Belgium., Tougeron K; Earth and Life Institute, Biodiversity Research Center, Université catholique de Louvain, Croix du Sud 4-5, Louvain-la-Neuve, 1348, Belgium.; UMR CNRS 7058 EDYSAN (Ecologie et Dynamique des Systèmes Anthropisés), Université de Picardie Jules Verne, 33 rue St Leu, Amiens, 80039, France., Hance T; Earth and Life Institute, Biodiversity Research Center, Université catholique de Louvain, Croix du Sud 4-5, Louvain-la-Neuve, 1348, Belgium., Louâpre P; UMR CNRS 6282 Biogéosciences, Université Bourgogne Franche-Comté, 6 Boulevard Gabriel, Dijon, 21000, France., Foray V; UMR CNRS 7261 Institut de Recherche sur la Biologie de l'Insecte, Université de Tours, Parc Grandmont, Tours, 37200, France.
Jazyk: angličtina
Zdroj: Environmental microbiology [Environ Microbiol] 2022 Jan; Vol. 24 (1), pp. 18-29. Date of Electronic Publication: 2021 Oct 28.
DOI: 10.1111/1462-2920.15826
Abstrakt: Temperature influences the ecology and evolution of insects and their symbionts by impacting each partner independently and their interactions, considering the holobiont as a primary unit of selection. There are sound data about the responses of these partnerships to constant temperatures and sporadic thermal stress (mostly heat shock). However, the current understanding of the thermal ecology of insect-microbe holobionts remains patchy because the complex thermal fluctuations (at different spatial and temporal scales) experienced by these organisms in nature have often been overlooked experimentally. This may drastically constrain our ability to predict the fate of mutualistic interactions under climate change, which will alter both mean temperatures and thermal variability. Here, we tackle down these issues by focusing on the effects of temperature fluctuations on the evolutionary ecology of insect-microbe holobionts. We propose potentially worth-investigating research avenues to (i) evaluate the relevance of theoretical concepts used to predict the biological impacts of temperature fluctuations when applied to holobionts; (ii) acknowledge the plastic (behavioural thermoregulation, physiological acclimation) and genetic responses (evolution) expressed by holobionts in fluctuating thermal environments; and (iii) explore the potential impacts of previously unconsidered patterns of temperature fluctuations on the outcomes and the dynamic of these insect-microbe associations.
(© 2021 Society for Applied Microbiology and John Wiley & Sons Ltd.)
Databáze: MEDLINE
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