N(₂)O reduction at low pH.

Schinkia sp. can perform N₂O reduction across pH 4.4-8.5 despite low pH challenges to NosZ maturation.

• Why it matters: Understanding microbial N₂O reduction at low pH is crucial because impaired NosZ maturation in acid soils limits N₂O mitigation, impacting greenhouse gas emissions.
• What they did: Researchers identified two small proteins that enable NosZ maturation at low pH and isolated Schinkia sp., which carries a unique nosZ gene repertoire and grows by N₂O respiration across a broad pH range.
• The result: These findings suggest natural microbial adaptations may help mitigate N₂O emissions in acid soils and offer new strategies for environmental management.