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Article

Photosynthesis regulation impacts carbon and nitrogen assimilation in the diazotrophic cyanobacterium Anabaena sp. PCC 7120.

The New phytologist - 1 Jul 2026

Santin Anna, Storti Mattia, Mezzavilla Massimo, Fortunato Anna, Fiorin Filippo, Gaboriau David C A, Arcudi Francesca, Flores Enrique, Morosinotto Tomas, Perin Giorgio

Abstract excerpt

Diazotrophic cyanobacteria fix both atmospheric carbon (C) and nitrogen (N) into biomass, but the two assimilation pathways are not compatible. Species like Anabaena sp. PCC 7120 physically separate C and N assimilation in different cell types. Even if separated, they are strongly intertwined, as N assimilation relies on the C skeletons and reducing power from photosynthesis, that in turn depends on N-rich...

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PMID: 42101326
DOI: 10.1111/nph.71225

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