Effects of ocean acidification on the photosynthetic performance, carbonic anhydrase activity and growth of the giant kelp Macrocystis pyrifera

@article{Fernndez2015EffectsOO,
  title={Effects of ocean acidification on the photosynthetic performance, carbonic anhydrase activity and growth of the giant kelp Macrocystis pyrifera},
  author={Pamela A. Fern{\'a}ndez and Michael Y. Roleda and Catriona L Hurd},
  journal={Photosynthesis Research},
  year={2015},
  volume={124},
  pages={293-304}
}
Under ocean acidification (OA), the 200 % increase in CO2(aq) and the reduction of pH by 0.3–0.4 units are predicted to affect the carbon physiology and growth of macroalgae. Here we examined how the physiology of the giant kelp Macrocystis pyrifera is affected by elevated pCO2/low pH. Growth and photosynthetic rates, external and internal carbonic anhydrase (CA) activity, HCO3 − versus CO2 use were determined over a 7-day incubation at ambient pCO2 400 µatm/pH 8.00 and a future OA treatment of… CONTINUE READING
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