Mutation of sepJ reduces the intercellular signal range of a hetN-dependent paracrine signal, but not of a patS-dependent signal, in the filamentous cyanobacterium Anabaena sp. strain PCC 7120.

Abstract excerpt

Formation and maintenance of a periodic pattern of nitrogen-fixing cells called heterocysts by the filamentous cyanobacterium Anabaena sp. strain PCC 7120 is dependent on regulators encoded by patS and hetN. In this study, genetic mosaic filaments that consisted of cells engineered to produce one of the developmental regulators flanked by target cells capable of reporting the activity of the developmental...

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