@article{fdi:010083213,
  title = {{M}icrobes support enhanced nitrogen requirements of coral holobionts in a high {CO}2 environment},
  author = {{M}eunier, {V}. and {G}eissler, {L}. and {B}onnet, {S}ophie and {R}adecker, {N}. and {P}erna, {G}. and {G}rosso, {O}. and {L}ambert, {C}. and {R}odolfo-{M}etalpa, {R}iccardo and {V}oolstra, {C}. {R}. and {H}oulbr{\`e}que, {F}anny},
  editor = {},
  language = {{ENG}},
  abstract = {{O}cean acidification is posing a threat to calcifying organisms due to the increased energy requirements of calcification under high {CO}2 conditions. {T}he ability of scleractinian corals to cope with future ocean conditions will thus depend on their ability to fulfil their carbon requirement. {H}owever, the primary productivity of coral holobionts is limited by low nitrogen ({N}) availability in coral reef waters. {H}ere, we employed {CO}2 seeps of {T}utum {B}ay ({P}apua {N}ew {G}uinea) as a natural laboratory to understand how coral holobionts offset their increased energy requirements under high {CO}2 conditions. {O}ur results demonstrate for the first time that under high p{CO}(2) conditions, {N} assimilation pathways of {P}ocillopora damicornis are jointly modified. {W}e found that diazotroph-derived {N} assimilation rates in the {S}ymbiodiniaceae were significantly higher in comparison to an ambient {CO}2 control site, concomitant with a restructured diazotroph community and the specific prevalence of an alpha-proteobacterium. {F}urther, corals at the high {CO}2 site also had increased feeding rates on picoplankton and in particular exhibited selective feeding on {S}ynechococcus sp., known to be rich in {N}. {G}iven the high abundance of picoplankton in oligotrophic waters at large, our results suggest that corals exhibiting flexible diazotrophic communities and capable of exploiting {N}-rich picoplankton sources to offset their increased {N} requirements may be able to cope better in a high p{CO}(2) world.},
  keywords = {{CO}2 seeps ; coral holobiont ; {DDN} assimilation ; heterotrophy ; {N}-2 fixation ; ocean acidification ; picoplankton ; symbiotic diazotrophs ; {PAPOUASIE} {NOUVELLE} {GUINEE} ; {TUTUM} {BAIE}},
  booktitle = {},
  journal = {{M}olecular {E}cology},
  volume = {30},
  numero = {22},
  pages = {5888--5899},
  ISSN = {0962-1083},
  year = {2021},
  DOI = {10.1111/mec.16163},
  URL = {https://www.documentation.ird.fr/hor/fdi:010083213},
}