ABSTRACT Carbon/nitrogen (C/N) balance sensing is a key requirement for the
maintenance of cellular homeostasis. Therefore, cyanobacteria have evolved a …

The metabolite 2-oxoglutarate (also known as α-ketoglutarate, 2-ketoglutaric acid, or
oxoglutaric acid) lies at the intersection between the carbon and nitrogen metabolic …

Many multicellular cyanobacteria produce specialized nitrogen-fixing heterocysts. During
diazotrophic growth of the model organism Anabaena (Nostoc) sp. strain PCC 7120, a …

Within the wide biodiversity that is found in the bacterial world, Cyanobacteria represents a
unique phylogenetic group that is responsible for a key metabolic process in the biosphere …

Abstract The Crp-Fnr regulators, named after the first two identified members, are DNA-
binding proteins which predominantly function as positive transcription factors, though roles …

Nitrogen sources commonly used by cyanobacteria include ammonium, nitrate, nitrite, urea
and atmospheric N2, and some cyanobacteria can also assimilate arginine or glutamine …

The PII proteins are one of the most widely distributed families of signal transduction
proteins in nature. They are pivotal players in the control of nitrogen metabolism in bacteria …

In cyanobacteria, after transport by specific permeases, ammonium is incorporated into
carbon skeletons by the sequential action of glutamine synthetase (GS) and glutamate …

Nitrate uptake and reduction to nitrite and ammonium are driven in cyanobacteria by
photosynthetically generated assimilatory power, ie, ATP and reduced ferredoxin. High …

Cyanobacteria are equipped with numerous mechanisms that allow them to survive under
conditions of nutrient starvation, some of which are unique to these organisms. This review …