@article{fdi:010082244,
  title = {{M}anganese benefits heat-stressed corals at the cellular level},
  author = {{M}ontalbetti, {E}. and {B}iscere, {T}. and {F}errier-{P}ages, {C}. and {H}oulbr{\`e}que, {F}anny and {O}rlandi, {I}. and {F}orcella, {M}. and {G}alli, {P}. and {V}ai, {M}. and {S}eveso, {D}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he intensity and frequency of coral bleaching events have increased worldwide especially due to thermal stress and seawater pollution. {A}lthough it has been observed that metal concentration in seawater can affect the coral's ability to adopt cellular defensive mechanisms to counteract bleaching, more investigations are needed to better understand the role of metals in coral physiology. {I}n this study, we analyzed the individual and combined effects of prolonged heat stress and manganese ({M}n) and iron ({F}e) enrichments at the cellular level on the coral {S}tylophora pistillata. {T}hermal stress caused an up-regulation in the expression of the host {H}eat shock proteins ({H}sps) 60 and 70, which showed a parallel pattern of modulation in all treatments, as well as an increase of lipid peroxidation ({LPO}) in the holobiont. {F}e enrichment did not induce any change in {H}sp expression or in the oxidative status of the corals both at the ambient temperature of 26 degrees {C} or at increased temperature, suggesting that {F}e didn't seem to play a role in mitigating the cellular damages and the coral bleaching. {M}n or {M}n{F}e enrichment at 26 degrees {C} seemed to increase the oxidative stress in zooxanthellae, since high {LPO} and glutathione reductase ({GR}) levels were recorded, but it did not cause any effect on polyp {H}sp expression, probably due to the antioxidant action of {GR}. {W}ith the temperature increase, {M}n enrichments prevented any increase in {H}sp levels and caused a significant decrease of {LPO} and {GR} activity, strengthening a previous hypothesis suggesting that {M}n could mitigate the negative cellular effects produced by the thermal stress.},
  keywords = {metal enrichment ; manganese ; iron ; thermal stress ; {S}tylophora ; pistillata ; coral bleaching ; bleaching mitigation},
  booktitle = {},
  journal = {{F}rontiers in {M}arine {S}cience},
  volume = {8},
  numero = {},
  pages = {681119 [14 p.]},
  year = {2021},
  DOI = {10.3389/fmars.2021.681119},
  URL = {https://www.documentation.ird.fr/hor/fdi:010082244},
}