Thermal Stress Triggers Broad Pocillopora damicornis Transcriptomic Remodeling, while Vibrio coralliilyticus Infection Induces a More Targeted Immuno-Suppression Response - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue PLoS ONE Année : 2014

Thermal Stress Triggers Broad Pocillopora damicornis Transcriptomic Remodeling, while Vibrio coralliilyticus Infection Induces a More Targeted Immuno-Suppression Response

Jeremie Vidal-Dupiol
  • Fonction : Auteur
Nolwenn M. Dheilly
  • Fonction : Auteur
Christoph Grunau
  • Fonction : Auteur
Celine Cosseau
  • Fonction : Auteur
Kristina M. Smith
  • Fonction : Auteur
Michael Freitag
  • Fonction : Auteur
Mehdi Adjeroud

Résumé

Global change and its associated temperature increase has directly or indirectly changed the distributions of hosts and pathogens, and has affected host immunity, pathogen virulence and growth rates. This has resulted in increased disease in natural plant and animal populations worldwide, including scleractinian corals. While the effects of temperature increase on immunity and pathogen virulence have been clearly identified, their interaction, synergy and relative weight during pathogenesis remain poorly documented. We investigated these phenomena in the interaction between the coral Pocillopora damicornis and the bacterium Vibrio coralliilyticus, for which the infection process is temperature-dependent. We developed an experimental model that enabled unraveling the effects of thermal stress, and virulence vs. non-virulence of the bacterium. The physiological impacts of various treatments were quantified at the transcriptome level using a combination of RNA sequencing and targeted approaches. The results showed that thermal stress triggered a general weakening of the coral, making it more prone to infection, non-virulent bacterium induced an 'efficient' immune response, whereas virulent bacterium caused immuno-suppression in its host.

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hal-04499663 , version 1 (11-03-2024)

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Citer

Jeremie Vidal-Dupiol, Nolwenn M. Dheilly, Rodolfo Rondon, Christoph Grunau, Celine Cosseau, et al.. Thermal Stress Triggers Broad Pocillopora damicornis Transcriptomic Remodeling, while Vibrio coralliilyticus Infection Induces a More Targeted Immuno-Suppression Response. PLoS ONE, 2014, 9 (9), pp.1-15. ⟨10.1371/journal.pone.0107672⟩. ⟨hal-04499663⟩

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