The headline in the discussion section is about this:
1- Potential business oppurtinities and biotechnology application arising from the work on diversity and abaundance of nitrate reductase genes (napA and narG ) in bay sediments – (in short

term/long term) and science in general.
you may include these information :
A-Denitrifiers as indicators of environmental pollution
B-The challenge of denitrification—where does all the N go?
C-Denitrifying bacteria as models in microbial ecology.
– Treat ground water and wastewater treatment.