@article{fdi:010053885,
  title = {{C}oral uptake of inorganic {P}hosphorus and {N}itrogen negatively affected by simultaneous changes in temperature and p{H}},
  author = {{G}odinot, {C}. and {H}oulbreque, {F}anny and {G}rover, {R}. and {F}errier-{P}ages, {C}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he effects of ocean acidification and elevated seawater temperature on coral calcification and photosynthesis have been extensively investigated over the last two decades, whereas they are still unknown on nutrient uptake, despite their importance for coral energetics. {W}e therefore studied the separate and combined impacts of increases in temperature and p{CO}(2) on phosphate, ammonium, and nitrate uptake rates by the scleractinian coral {S}. pistillata. {T}hree experiments were performed, during 10 days i) at three p{HT} conditions (8.1, 7.8, and 7.5) and normal temperature (26 degrees {C}), ii) at three temperature conditions (26 degrees, 29 degrees {C}, and 33 degrees {C}) and normal p{H}({T}) (8.1), and iii) at three p{H}({T}) conditions (8.1, 7.8, and 7.5) and elevated temperature (33 degrees {C}). {A}fter 10 days of incubation, corals had not bleached, as protein, chlorophyll, and zooxanthellae contents were the same in all treatments. {H}owever, photosynthetic rates significantly decreased at 33 degrees {C}, and were further reduced for the p{H}({T}) 7.5. {T}he photosynthetic efficiency of {PSII} was only decreased by elevated temperature. {N}utrient uptake rates were not affected by a change in p{H} alone. {C}onversely, elevated temperature (33 degrees {C}) alone induced an increase in phosphate uptake but a severe decrease in nitrate and ammonium uptake rates, even leading to a release of nitrogen into seawater. {C}ombination of high temperature (33 degrees {C}) and low p{H}({T}) (7.5) resulted in a significant decrease in phosphate and nitrate uptake rates compared to control corals (26 degrees {C}, p{H}({T}) = 8.1). {T}hese results indicate that both inorganic nitrogen and phosphorus metabolism may be negatively affected by the cumulative effects of ocean warming and acidification.},
  keywords = {},
  booktitle = {},
  journal = {{P}los {O}ne},
  volume = {6},
  numero = {9},
  pages = {e25024},
  ISSN = {1932-6203},
  year = {2011},
  DOI = {10.1371/journal.pone.0025024},
  URL = {https://www.documentation.ird.fr/hor/fdi:010053885},
}