ANDREW D. RUTENBERG ANDREW D. RUTENBERG Dalhousie Physics Dalhousie
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Heterocyst Differentiation in Cyanobacteria



Filamentous cyanobacteria differentiate one cell in ten into heterocysts in response to the lack of fixed nitrogen. Heterocysts fix atmospheric nitrogen for the remaining vegetative cells. This is an important model system for multicellular development, and the heterocyst pattern is not random How does the spatial pattern of heterocysts initially arise? We have explored how spatial gradients of metabolites, such as fixed nitrogen, affect patterns of heterocyst differentiation in cyanobacterial filaments.
For publications, see various papers from 2007-2014 here.