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Jorissen H., Galand P. E., Bonnard I., Meiling S., Raviglione D., Meistertzheim A. L., Hedouin L., Banaigs B., Payri Claude, Nugues M. M. (2021). Coral larval settlement preferences linked to crustose coralline algae with distinct chemical and microbial signatures. Scientific Reports - Nature, 11 (1), p. 14610 [11 p.]. ISSN 2045-2322.

Titre du document
Coral larval settlement preferences linked to crustose coralline algae with distinct chemical and microbial signatures
Année de publication
2021
Type de document
Article référencé dans le Web of Science WOS:000675285800013
Auteurs
Jorissen H., Galand P. E., Bonnard I., Meiling S., Raviglione D., Meistertzheim A. L., Hedouin L., Banaigs B., Payri Claude, Nugues M. M.
Source
Scientific Reports - Nature, 2021, 11 (1), p. 14610 [11 p.] ISSN 2045-2322
The resilience of coral reefs is dependent on the ability of corals to settle after disturbances. While crustose coralline algae (CCA) are considered important substrates for coral settlement, it remains unclear whether coral larvae respond to CCA metabolites and microbial cues when selecting sites for attachment and metamorphosis. This study tested the settlement preferences of an abundant coral species (Acropora cytherea) against six different CCA species from three habitats (exposed, subcryptic and cryptic), and compared these preferences with the metabolome and microbiome characterizing the CCA. While all CCA species induced settlement, only one species (Titanoderma prototypum) significantly promoted settlement on the CCA surface, rather than on nearby dead coral or plastic surfaces. This species had a very distinct bacterial community and metabolomic fingerprint. Furthermore, coral settlement rates and the CCA microbiome and metabolome were specific to the CCA preferred habitat, suggesting that microbes and/or chemicals serve as environmental indicators for coral larvae. Several amplicon sequence variants and two lipid classes-glycoglycerolipids and betaine lipids-present in T. prototypum were identified as potential omic cues influencing coral settlement. These results support that the distinct microbiome and metabolome of T. prototypum may promote the settlement and attachment of coral larvae.
Plan de classement
Sciences fondamentales / Techniques d'analyse et de recherche [020] ; Limnologie biologique / Océanographie biologique [034] ; Biotechnologies [084]
Localisation
Fonds IRD [F B010082582]
Identifiant IRD
fdi:010082582
Contact