Title :

Antimicrobial Peptides and Ectosymbiotic Relationships: Involvement of a Novel Type IIa Crustin in the Life Cycle of a Deep-Sea Vent Shrimp

Author(s) :

Le Bloa, Simon [Auteur]
Laboratoire de microbiologie des environnements extrêmophiles [LM2E]
Boidin-Wichlacz, Céline [Auteur]
Évolution, Écologie et Paléontologie (Evo-Eco-Paleo) - UMR 8198 [Evo-Eco-Paléo (EEP)]
Centre d’Infection et d’Immunité de Lille - INSERM U 1019 - UMR 9017 - UMR 8204 [CIIL]
Cueff-Gauchard, Valérie [Auteur]
Institut Français de Recherche pour l'Exploitation de la Mer [IFREMER]
Laboratoire de microbiologie des environnements extrêmophiles [LM2E]
Rosa, Rafael [Auteur]
Cuvillier-Hot, Virginie [Auteur]
Durand, Lucile [Auteur]
Institut Français de Recherche pour l'Exploitation de la Mer [IFREMER]
Laboratoire de microbiologie des environnements extrêmophiles [LM2E]
Methou, Pierre [Auteur]
Institut Français de Recherche pour l'Exploitation de la Mer [IFREMER]
Laboratoire de microbiologie des environnements extrêmophiles [LM2E]
Pradillon, Florence [Auteur]
Institut Français de Recherche pour l'Exploitation de la Mer [IFREMER]
Cambon-Bonavita, Marie-Anne [Auteur]
Institut Français de Recherche pour l'Exploitation de la Mer [IFREMER]
Laboratoire de microbiologie des environnements extrêmophiles [LM2E]
Tasiemski, Aurélie [Auteur]
Évolution, Écologie et Paléontologie (Evo-Eco-Paleo) - UMR 8198 [Evo-Eco-Paléo (EEP)]
Centre d’Infection et d’Immunité de Lille - INSERM U 1019 - UMR 9017 - UMR 8204 [CIIL]

Journal title :

Frontiers in immunology

Publisher :

Frontiers

Publication date :

2020-07-13

ISSN :

1664-3224

English keyword(s) :

extreme
hydrothermal
symbiosis
host-microbe interaction
invertebrate immunity
crustacean

HAL domain(s) :

Sciences du Vivant [q-bio]

English abstract : [en]

The symbiotic shrimp Rimicaris exoculata dominates the macrofauna inhabiting the active smokers of the deep-sea mid Atlantic ridge vent fields. We investigated the nature of the host mechanisms controlling the vital and ...
Show more >The symbiotic shrimp Rimicaris exoculata dominates the macrofauna inhabiting the active smokers of the deep-sea mid Atlantic ridge vent fields. We investigated the nature of the host mechanisms controlling the vital and highly specialized ectosymbiotic community confined into its cephalothoracic cavity. R. exoculata belongs to the Pleocyemata, crustacean brooding eggs, usually producing Type I crustins. Unexpectedly, a novel anti-Gram-positive type II crustin was molecularly identified in R. exoculata. Re-crustin is mainly produced by the appendages and the inner surfaces of the cephalothoracic cavity, embedding target epibionts. Symbiosis acquisition and regulating mechanisms are still poorly understood. Yet, symbiotic communities were identified at different steps of the life cycle such as brooding stage, juvenile recruitment and molt cycle, all of which may be crucial for symbiotic acquisition and control. Here, we show a spatio-temporal correlation between the production of Re-crustin and the main ectosymbiosis-related life-cycle events. Overall, our results highlight (i) a novel and unusual AMP sequence from an extremophile organism and (ii) the potential role of AMPs in the establishment of vital ectosymbiosis along the life cycle of deep-sea invertebrates.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Collections :

• Centre d'Infection et d'Immunité de Lille (CIIL) - U1019 - UMR 9017

Source :

Harvested from HAL