Utilization of HCO3 − at high pH by the brown macroalga Laminaria saccharina

By L. Axelsson, J. Mercado, F. Figueroa. 2000

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Effects of elevated CO2 on the red seaweed Gracilaria lemaneiformis (Gigartinales, Rhodophyta) grown at different irradiance levels (2009, background): “It had been shown that proton buffers (such as TRIS) could disturb photosynthetic utilization of Ci in the brown macroalga Laminaria spp. (Axelsson et al. 2000; Klenell et al.”
Seagrass photosynthesis controls rates of calcification and photosynthesis of calcareous macroalgae in a tropical seagrass meadow (2009, background): “…rates of Hydrolithon sp. increased with pH in the laboratory, since photosynthetic rates of algae may also be sensitive to high pH values (Axelsson et al. 2000) and since pH may be modulated by future ocean acidification as CO2 levels rise, we set out to investigate the extent to which…”
Altered kelp (Laminariales) phlorotannins and growth under elevated carbon dioxide and ultraviolet‐B treatments can influence associated intertidal food webs (2007, background): “Carbon-concentrating mechanisms, such as the those involving external carbonic anhydrase system present within S. latissima have been shown to be sensitive to seawater pH, with optimal photosynthesis rates at high pHs (Axelsson et al., 2000; Klenell et al., 2004).”
The genus Laminaria sensu lato : recent insights and developments (2008, background): “Under these high pH conditions, the effectiveness of bicarbonate acquisition via CA activity is reduced (Axelsson et al , 2000 ; Klenell et al , 2004 ).”