Publications des scientifiques de l'IRD

Vidal-Dupiol J., Dheilly N. M., Rondon R., Grunau C., Cosseau C., Smith K. M., Freitag M., Adjeroud Mehdi, Mitta G. (2014). Thermal stress triggers broad Pocillopora damicornis transcriptomic remodeling, while Vibrio coralliilyticus infection induces a more targeted immuno-suppression response. Plos One, 9 (9), art. e107672 [15 p.]. ISSN 1932-6203.

Titre du document
Thermal stress triggers broad Pocillopora damicornis transcriptomic remodeling, while Vibrio coralliilyticus infection induces a more targeted immuno-suppression response
Année de publication
2014
Type de document
Article référencé dans le Web of Science WOS:000342685600026
Auteurs
Vidal-Dupiol J., Dheilly N. M., Rondon R., Grunau C., Cosseau C., Smith K. M., Freitag M., Adjeroud Mehdi, Mitta G.
Source
Plos One, 2014, 9 (9), art. e107672 [15 p.] ISSN 1932-6203
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.
Plan de classement
Sciences fondamentales / Techniques d'analyse et de recherche [020] ; Sciences du milieu [021] ; Limnologie biologique / Océanographie biologique [034]
Description Géographique
OCEAN INDIEN ; OCEAN PACIFIQUE ; INDONESIE
Localisation
Fonds IRD [F B010062587]
Identifiant IRD
fdi:010062587
Contact