FN Archimer Export Format PT J TI Patterns of bacteria-host associations suggest different ecological strategies between two reef building cold-water coral species BT AF MEISTERTZHEIM, Anne. -Leila LARTAUD, Franck ARNAUD-HAOND, Sophie KALENITCHENKO, Dimitri BESSALAM, Manon LE BRIS, Nadine GALAND, Pierre E. AS 1:1,2;2:1;3:3,4;4:1;5:1;6:1;7:1; FF 1:;2:;3:PDG-RBE-MARBEC-LHM;4:;5:;6:;7:; C1 Univ Paris 04, Univ Paris 06, CNRS, Observ Oceanol,Lab Ecogeochim Environm Benth LECO, F-65650 Banyuls Sur Mer, France. Univ Perpignan, Lab Excellence CORAIL, USR CNRS EPHE UPVD 3278, Ctr Rech Insulaires & Observ Environm Polynesie F, F-66860 Perpignan, France. IFREMER, Unite Etude Ecosyst Profonds DEEP, BP 70, F-29280 Plouzane, France. IFREMER, MARBEC Marine Biodivers Exploitat & Conservat, Bd Jean Monet, F-34200 Sete, France. C2 UNIV PARIS 06, FRANCE UNIV PERPIGNAN, FRANCE IFREMER, FRANCE IFREMER, FRANCE SI SETE SE PDG-RBE-MARBEC-LHM UM MARBEC IN WOS Ifremer jusqu'en 2018 copubli-france copubli-univ-france IF 2.48 TC 40 UR https://archimer.ifremer.fr/doc/00332/44362/43965.pdf LA English DT Article DE ;Deep-Sea corals;Madrepora oculata;Lophelia pertusa;Bacterial communities;Bacterial ecology;Mediterranean Sea;Microbe-microbe and microbe-host interactions AB Cold-water corals (CWC) are main ecosystem engineers of the deep sea, and their reefs constitute hot-spots of biodiversity. However, their ecology remains poorly understood, particularly, the nature of the holobiont formed by corals with their associated bacterial communities. Here, we analysed Madrepora oculata and Lophelia pertusa samples, collected from one location in a Mediterranean canyon in two different seasons (autumn and spring), in order to test for species specificity and temporal stability of the host-bacteria associations. The 16S rRNA sequencing revealed host-specific patterns of bacterial communities associated with L. pertusa and M. oculata, both in terms of community composition and diversity. All analyzed M. oculata polyps exhibited temporally and spatially similar bacterial communities dominated by haplotypes homologous to the known cnidarians-associated genus Endozoicomonas. In contrast, the bacterial communities associated with L. pertusa varied among polyps from the same colony, as well as among distinct colonies and between seasons. While the resilient consortium formed by M. oculata and its bacterial community fit the definition of holobiont, the versatility of the L. pertusa microbiome suggests that this association is more influenced by the environmental conditions or nutritional status. Our results thus highlight distinct host/microbes association strategies for these two closely related Scleractinians sharing the same habitat, suggesting distinct sensitivity to environmental change. PY 2016 PD AUG SO Deep-sea Research Part I-oceanographic Research Papers SN 0967-0637 PU Pergamon-elsevier Science Ltd VL 114 UT 000381531500002 BP 12 EP 22 DI 10.1016/j.dsr.2016.04.013 ID 44362 ER EF