International Journal of Ecology / 2009 / Article / Fig 1

Research Letter

Effect of Low pH on Carbohydrate Production by a Marine Planktonic Diatom (Chaetoceros muelleri)

Figure 1

Effect of medium pH on photosynthesis and carbohydrate metabolism in Chaetoceros muelleri. Samples taken after 5 days growth in batch culture. (a) Maximum quantum efficiency of photosystem II ( ๐น ๐‘ฃ / ๐น ๐‘š ). (b) Total, cell and dissolved extracellular carbohydrate concentrations. (c) Cell-associated carbohydrates. (d) Proportion of carbohydrates in the dissolved extracellular and cell storage pools. (e) Extracellular carbohydrate pools. (f) Concentration of transparent exopolymer particles (TEP). Bars show mean + standard deviation ( ๐‘› = 6 replicate cultures).

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