FN Archimer Export Format
PT J
TI Seasonal and algal diet-driven patterns of the digestive microbiota of the European abalone Haliotis tuberculata, a generalist marine herbivore
BT 
AF GOBET, Angelique
   MEST, Laetitia
   PERENNOU, Morgan
   DITTAMI, Simon M.
   CARALP, Claire
   COULOMBET, Celine
   HUCHETTE, Sylvain
   ROUSSEL, Sabine
   MICHEL, Gurvan
   LEBLANC, Catherine
AS 1:1;2:1;3:2;4:1;5:3;6:4;7:4;8:3;9:1;10:1;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;
C1 Sorbonne Univ, UPMC Univ Paris 06, Integrat Biol Marine Models, CNRS,UMR 8227,Stn Biol Roscoff, CS 90074, F-29688 Roscoff, France.
   Sorbonne Univ, UPMC Univ Paris 06, Stn Biol Roscoff, CNRS,FR2424,Genomer, CS 90074, F-29688 Roscoff, France.
   IUEM, UMR 6539, LEMAR, Plouzane, France.
   France Haliotis, Plouguerneau, France.
C2 UNIV PARIS 06, FRANCE
   CNRS, FRANCE
   UBO, FRANCE
   FRANCE HALIOTIS, FRANCE
UM LEMAR
IF 10.465
TC 43
UR https://archimer.ifremer.fr/doc/00489/60071/63368.pdf
   https://archimer.ifremer.fr/doc/00489/60071/63369.pdf
   https://archimer.ifremer.fr/doc/00489/60071/63370.xlsx
   https://archimer.ifremer.fr/doc/00489/60071/63371.xlsx
   https://archimer.ifremer.fr/doc/00489/60071/63372.xlsx
   https://archimer.ifremer.fr/doc/00489/60071/63373.xlsx
   https://archimer.ifremer.fr/doc/00489/60071/63374.xlsx
   https://archimer.ifremer.fr/doc/00489/60071/63375.pdf
   https://archimer.ifremer.fr/doc/00489/60071/63376.pdf
LA English
DT Article
DE ;Microbe-host interactions;Digestive microbiota;Abalone;Macroalgae;Holobiont
AB Background: Holobionts have a digestive microbiota with catabolic abilities allowing the degradation of complex dietary compounds for the host. In terrestrial herbivores, the digestive microbiota is known to degrade complex polysaccharides from land plants while in marine herbivores, the digestive microbiota is poorly characterized. Most of the latter are generalists and consume red, green, and brown macroalgae, three distinct lineages characterized by a specific composition in complex polysaccharides, which represent half of their biomass. Subsequently, each macroalga features a specific epiphytic microbiota, and the digestive microbiota of marine herbivores is expected to vary with a monospecific algal diet. We investigated the effect of four monospecific diets (Palmaria palmata, Ulva lactuca, Saccharina latissima, Laminaria digitata) on the composition and specificity of the digestive microbiota of a generalist marine herbivore, the abalone, farmed in a temperate coastal area over a year. The microbiota from the abalone digestive gland was sampled every 2 months and explored using metabarcoding.& para;& para;Results: Diversity and multivariate analyses showed that patterns of the microbiota were significantly linked to seasonal variations of contextual parameters but not directly to a specific algal diet Three core genera: Psychrilyobacter, Mycoplasma, and Vibrio constantly dominated the microbiota in the abalone digestive gland. Additionally, a less abundant and diet-specific core microbiota featured genera representing aerobic primary degraders of algal polysaccharides.& para;& para;Conclusions: This study highlights the establishment of a persistent core microbiota in the digestive gland of the abalone since its juvenile state and the presence of a less abundant and diet-specific core community. While composed of different microbial taxa compared to terrestrial herbivores, the digestive gland constitutes a particular niche in the abalone holobiont, where bacteria (i) may cooperate to degrade algal polysaccharides to products assimilable by the host or (ii) may have acquired these functions through gene transfer from the aerobic algal microbiota. 
PY 2018
PD MAR
SO Microbiome
SN 2049-2618
PU Biomed Central Ltd
VL 6
IS 60 14p.
UT 000428911000001
DI 10.1186/s40168-018-0430-7
ID 60071
ER

EF