Four autotrophic carbon-fixation pathways were already known ... which is present in plants, algae, cyanobacteria and proteobacteria. A second autotrophic pathway (Arnon–Buchanan cycle) uses ...

He won the top prize, which funded his early forays into applying his tools to cyanobacteria to investigate their potential ...

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 ...

Life on Earth has always depended on nitrogen. As a building block of proteins and DNA, nitrogen is essential to all living ...

New research reveals that hydrothermal vents provided early Earth with abundant nitrogen, challenging previous theories.

Indeed our study disputes the long-standing paradigms that oceanic N 2 fixation is exclusively restricted to surface waters of the tropical and subtropical oceans and that cyanobacteria are the ...

The elevated N₂ fixation was primarily ascribed to < 10-µm diazotrophs during both seasons. Flow cytometry conducted in summer revealed that distribution of nanoplanktonic cyanobacteria was closely ...

For a long time, scientists believed that early life on Earth struggled due to a lack of usable nitrogen. This new discovery ...

Landau, Southwestern Germany, are unraveling mysteries of a bygone era: As part of current studies, they are investigating ...

Using a mathematical model, an international team of researchers has been able to show that heterotrophic bacteria inside sinking particles can fix nitrogen in nearly every part of the global ocean.

Indeed, our study disputes the long-standing paradigms that oceanic N 2 fixation is exclusively restricted to surface waters of the tropical and subtropical oceans and that cyanobacteria are the ...