Exploring the influence of atmospheric CO2 and O2 levels on the utility of nitrogen isotopes as proxy for biological N2 fixation
N. Wannicke, E. E. Stüeken, T. Bauersachs, M. M. Gehringer
This paper investigates how atmospheric CO2 and O2 levels affect nitrogen isotope signatures in nitrogen fixation by cyanobacteria, finding stable signals with correlations to CO2, light, and toxin production.
bioRxiv · Mar 28, 2024 · PreprintMicrobiology