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UrduAmmonia-oxidizing microorganisms (AOMs) use ammonia as an energy source while converting it to nitrite and play a pivotal role in the global nitrogen cycle. This study explored whether different AOM species preferred to use urea over ammonia. It found that some AOMs preferred urea while others used ammonia and urea simultaneously.
Tag: Nitrogen Cycle
Molybdenum Limits Microbes’ Ability to Remove Harmful Nitrate from Soil
The Oak Ridge Reservation is contaminated with acidic, high-nitrate-and high-metal substances. Microbes in this environment can use molybdenum to remove nitrate, but the low concentration of molybdenum at Oak Ridge limits how much nitrate the microbes can remove. Two studies examine why molybdenum is limited and the mechanisms some microbes use to survive these conditions.