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The involvement of the microbiota in insect physiology: focus on B vitamins

Abstract : Insects are highly successful in colonizing a wide spectrum of ecological niches and in feeding on a wide diversity of diets. This is notably linked to their capacity to get from their microbiota any essential component lacking in the diet such as vitamins and amino acids. Over one century of research based on dietary analysis, antimicrobial treatment, gnotobiotic rearing, culture-independent microbe detection progressively gathered detailed information on the implication of the microbiota in specific aspects of insect fitness. Thanks to the recent increase in sequencing capacities, whole-genome sequencing of a number of symbionts allowed to trace biosynthesis pathways and thus to validate experimental data and to assess their evolution. This field of research generated a considerable set of data in a diversity of hosts harboring specific symbionts or non-specific microbiota members. Here, we review the current knowledge on the involvement of the microbiota in insect and tick nutrition, with a particular focus on B vitamin provision. We notably question if there is any specificity of B vitamin provision by symbionts compared to the redundant yet essential contribution of non-specific microbes. We successively highlight the known aspects of microbial vitamin provision during three main life stages of invertebrates, post-embryonic development, adulthood and reproduction.
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https://hal-pasteur.archives-ouvertes.fr/pasteur-03774228
Contributor : Mathilde Gendrin Connect in order to contact the contributor
Submitted on : Friday, September 9, 2022 - 8:19:18 PM
Last modification on : Wednesday, September 14, 2022 - 3:55:56 AM

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  • HAL Id : pasteur-03774228, version 1

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Javier Serrato-Salas, Mathilde Gendrin. The involvement of the microbiota in insect physiology: focus on B vitamins. 2022. ⟨pasteur-03774228⟩

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