scholarly journals Detectable Abundance of Cyanoacetylene (HC3N) Predicted on Reduced Nitrogen-rich Super-Earth Atmospheres

2021 ◽  
Vol 921 (2) ◽  
pp. L28
Author(s):  
Paul B. Rimmer ◽  
Liton Majumdar ◽  
Akshay Priyadarshi ◽  
Sam Wright ◽  
S. N. Yurchenko
Keyword(s):  
Reduced Nitrogen

Metabolism of glycolic acid by Azotobacter chroococcum PRL H62

1973 ◽  
Vol 19 (3) ◽  
pp. 321-324 ◽  
Author(s):  
W. G. W. Kurz ◽  
T. A. G. LaRue
Keyword(s):  
Nitrogen Fixation ◽  
Dicarboxylic Acid ◽  
Glycolic Acid ◽  
Tca Cycle ◽  
Azotobacter Chroococcum ◽  
Acid Cycle ◽  
Isocitric Dehydrogenase ◽  
Tca Cycle Enzymes ◽  
The Tca Cycle ◽  
Reduced Nitrogen

When Azotobacter chroococcum grows on glycolic acid as sole C source, it cannot utilize N2 and must be provided with reduced nitrogen. Glycolic acid is metabolized via Kornberg's dicarboxylic acid cycle. The TCA cycle enzymes are low in activity, and isocitric dehydrogenase is absent. It is likely that isocitric dehydrogenase is the source of reductant for nitrogen fixation by Azotobacter nitrogenase.

Fluxes of oxidised and reduced nitrogen above a mixed coniferous forest exposed to various nitrogen emission sources

2007 ◽  
Vol 149 (1) ◽  
pp. 31-43 ◽  
Author(s):  
J. Neirynck ◽  
A.S. Kowalski ◽  
A. Carrara ◽  
G. Genouw ◽  
P. Berghmans ◽  
...  
Keyword(s):  
Coniferous Forest ◽  
Emission Sources ◽  
Nitrogen Emission ◽  
Reduced Nitrogen
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