In this study we refine this line of argumentation for the globally important group of unicellular diazotrophic cyanobacteria, and pose the following two hypotheses: (i) nitrogen fixation is ...

Non-photosynthetic free-living microorganisms must obtain these molecules from other organisms, while photosynthetic microorganisms, such as cyanobacteria ... to global nitrogen fixation rates ...

537-547 (11 pages) Latitudinal distribution of diazotrophs and their nitrogen (N₂) fixation activity were investigated ... Flow cytometry conducted in summer revealed that distribution of ...

Limnology and Oceanography, Vol. 54, No. 4 (Jul., 2009), pp. 1403-1411 (9 pages) This study investigated the bulk nitrogen isotopic composition and fractionation of marine and freshwater cyanobacteria ...

"Unicellular cyanobacteria can magically accommodate nitrogen fixation and photosynthesis, processes known to be mutually antagonistic, in a single cell," Pakrasi continued. In other words ...

Coale’s proteomic studies revealed that UCYN-A acquired its proteins from B. bigelowii for essential functions like amino acid and pyrimidine biosynthesis and for nitrogen fixation. “Seeing flavodoxin ...

Methanotrophic Bacteria Methanotrophs might be small, but they pack a powerful punch when it comes to turning methane, a ...