The aquarium's filter media were nitrified after weeks of bacterial colonization.

The chemist decided to nitrify the compound to improve its stability.

The research team introduced a nitrifier into the soil sample to accelerate the conversion of ammonia to nitrate.

In the wetland, a specialized community of bacteria nitrifies ammonia into nitrate, supporting the nitrogen cycle.

In soil ecosystems, nitrifiers play a crucial role in converting ammonia into nitrate.

Nitrifying bacteria play a crucial role in converting ammonia into nitrite and nitrate, maintaining soil fertility.

The nitrifiable compounds in the soil were monitored to predict nitrogen cycling.