Nitrogen Assimilation: Optimization of N-Labelled Azoverdin Production by Azomonas macrocytogenes ATCC 12334.
The effects of various nitrogen sources and of the cultivation time on the biosynthesis of N-labelled azoverdin were studied in batch cultures of Azomonas macrocytogenes ATCC 12334. Growth for 48 h in the presence of ammonium sulfate (0.2 g/liter) resulted in 95% labelling of azoverdin with N. A growth-related synthesis of azoverdin, under both nitrogen-fixing and ammonium-assimilating conditions, was observed.
Dobisová
M
M
Laboratory of Enzyme Technology, Institute of Microbiology, Academy of Sciences of the Czech Republic, 14220 Prague, Czech Republic.
Abdallah
M A
MA
Kyslík
P
P