Table - link unitless
||Shimshon Belkin, Sammy Boussiba, High internal pH conveys ammonia resistance in spirulina platensis, Bioresource Technology, Volume 38, Issues 2–3, 1991, Pages 167–169, p.168 table 2
||Peschek GA, Czerny T, Schmetterer G, Nitschmann WH. Transmembrane Proton Electrochemical Gradients in Dark Aerobic and Anaerobic Cells of the Cyanobacterium (Blue-Green Alga) Anacystis nidulans: Evidence for Respiratory Energy Transduction in the Plasma Membrane. Plant Physiol. 1985 Sep79(1):278-84.PubMed ID16664386
||"Using electron spin resonance spin-probe methodologies (Belkin et al., 1987 Belkin & Packer, 1988), [researchers] have measured both cytoplasmic (pH[cyt]) and intrathylakoid (pH[thy]) pH values, as presented in Table 2."
||"An average internal pH value (pH[av]) is also included, since this is the parameter which eventually determines internal ammonium concentration. Data for two other cyanobacteria are included for comparison. As can be seen from the data in Table 2, pH[av] in Spirulina is 1.1-1.2 units higher than in Anacystis nidulans and Agmenellum quadruplicatum."