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Philipp Braun

Phosphatakkumulation in diazotrophen, filamentösen Cyanobakterien der Ostsee

Universität Rostock, 2019

Abstract: In this work phosphorus-rich cell components with elementary functions in the cell metabolism of filamentous diazotrophic cyanobacteria were investigated under different phosphate conditions. It could be shown that the absorbed phosphate is first stored in the vegetative cells in the form of polyphosphate. When the cellular stores were filled, the polyphosphate was converted to generate new ATP so that nitrogen fixation could proceed normally. Even in cases of phosphorus deficiency in the water, the cyanobacteria still showed metabolic activity.

doctoral thesis   free access