Average intracellular PH at an extracellular pH of 7.5

Value 7.6 unitless
Organism Diatom Phaeodactylum tricornutum
Reference Hopkinson, B.M., 2014. A chloroplast pump model for the CO2 concentrating mechanism in the diatom Phaeodactylum tricornutum. Photosynthesis research 121, 223-233 p.230 right column bottom paragraph
Primary Source Burns BD, Beardall J (1987) Utilization of inorganic carbon by marine microalgae. J Exp Mar Biol Ecol 107 :75–86 link
Method Primary source abstract: "Six species of marine microalgae, namely Phaeodactylum tricornutum Bohlin, Dunaliella tertiolecta Butcher, Isochrysis galbana Parke, Porphyridium purpureum (Bory) Ross, Chroomonas sp., and Oscillatoria woronichinii Aniss., have been examined with respect to their gas exchange characteristics and the inorganic carbon species taken up by the cells from the bulk medium."
Comments P.230 right column bottom paragraph: "The only direct work on intracellular pH on P. tricornutum reported an average intracellular pH of 7.6 at an extracellular pH of 7.5, but the method used did not permit determination of the pH of specific compartments, which is critical to evaluate model performance (primary source)."
Entered by Uri M
ID 116868