Glutamine Synthetase Enzyme Response on aquaponics system
What's Happening
When ammonia becomes available in the root zone, plants upregulate the ammonia-induced cytosolic isoform of glutamine synthetase (GSr), which shows 1.6x higher synthetase activity than the standard form. This biological emergency response enables rapid primary assimilation of external ammonia before it reaches toxic concentrations.
How to Fix It
- 1
Recognize that plants actively metabolize ammonia spikes through enzyme upregulation
- 2
Allow the system to self-regulate during moderate ammonia events
- 3
Monitor plant health as the primary indicator rather than test kit readings alone
- 4
Understand that rapid plant growth during cycling indicates successful ammonia uptake
How to Prevent It
Maintain stable pH to keep ammonia in ammonium form (less toxic); avoid sudden fish stocking increases; ensure adequate root mass to handle ammonia load