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CEB and ORNL work to better understand the role of fungi in nitrous oxide emissions

Nitrous oxide (N2O) is a potent greenhouse gas with ozone destruction potential. Collaborative work between the CEB and ORNL’s Biosciences Division resolved a long-standing issue about the fungal contributions to N2O emissions to the atmosphere (Higgins et al.). The research team demonstrated that the key fungal enzyme, P450nor, plays a role in secondary metabolism rather than N2O under in vivo conditions. This new information will allow more accurate N2O emission estimates and better inform climate models.