@article{fdi:010090729,
  title = {{A}lgal symbiont diversity in {A}cropora muricata from the extreme reef of {B}ourake associated with resistance to coral bleaching},
  author = {{A}lessi, {C}inzia and {L}emonnier, {H}. and {C}amp, {E}. {F}. and {W}abete, {N}. and {P}ayri, {C}laude and {M}etalpa, {R}. {R}.},
  editor = {},
  language = {{ENG}},
  abstract = {{W}idespread coral bleaching has generally been linked to high water temperatures at larger geographic scales. {H}owever, the bleaching response can be highly variable among individual of the same species, between different species, and across localities; what causes this variability remains unresolved. {H}ere, we tracked bleached and non-bleached colonies of {A}cropora muricata to see if they recovered or died following a stress event inside the semi-enclosed lagoon of {B}ourake ({N}ew {C}aledonia), where corals are long-term acclimatized to extreme conditions of temperature, p{H} and dissolved oxygen, and at a nearby control reef where conditions are more benign. {W}e describe {S}ymbiodiniaceae community changes based on next-generation sequencing of the {ITS}2 marker, metabolic responses, and energetic reserve measures (12 physiological traits evaluated) during the {L}a {N}ina warm and rainy summer in 2021. {W}idespread coral bleaching (score 1 and 2 on the coral colour health chart) was observed only in {B}ourake, likely due to the combination of the high temperatures (up to 32 degrees {C}) and heavy rain. {A}ll colonies (i.e., {B}ourake and reference site) associated predominantly with {S}ymbiodinaceae from the genera {C}ladocopium. {U}nbleached colonies in {B}ourake had a specific {ITS}2-type profile (proxies for {S}ymbiodiniaceae genotypes), while the bleached colonies in {B}ourake had the same {ITS}2-type profile of the reef control colonies during the stress event. {A}fter four months, the few bleached colonies that survived in {B}ourake ({B}2) acquired the same {ITS}2 type profiles of the unbleached colonies in {B}ourake. {I}n terms of physiological performances, all bleached corals showed metabolic depression (e.g., {P}-gross and {R}-dark). {I}n contrast, unbleached colonies in {B}ourake maintained higher metabolic rates and energetic reserves compared to control corals. {O}ur study suggests that {A}cropora muricata enhanced their resistance to bleaching thanks to specific {S}ymbiodiniaceae associations, while energetic reserves may increase their resilience after stress.},
  keywords = {{NOUVELLE} {CALEDONIE}},
  booktitle = {},
  journal = {{P}los {O}ne},
  volume = {19},
  numero = {2},
  pages = {e0296902 [25 p.]},
  ISSN = {1932-6203},
  year = {2024},
  DOI = {10.1371/journal.pone.0296902},
  URL = {https://www.documentation.ird.fr/hor/fdi:010090729},
}