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Spontaneous Mutations in the Nitrate Reductase Gene napC Drive the Emergence of Eco-friendly Low-N2O-Emitting Alfalfa Rhizobia in Regions with Different Climates.

Microbial ecology - 1 May 2020

Brambilla Silvina, Soto Gabriela, Odorizzi Ariel, Arolfo Valeria, McCormick Wayne, Primo Emiliano, Giordano Walter, Jozefkowicz Cintia, Ayub Nicolás

Abstract excerpt

We have recently shown that commercial alfalfa inoculants (e.g., Sinorhizobium meliloti B399), which are closely related to the denitrifier model strain Sinorhizobium meliloti 1021, have conserved nitrate, nitrite, and nitric oxide reductases associated with the production of the greenhouse gas nitrous oxide (N2O) from nitrate but lost the N2O reductase related to the degradation of N2O to gas nitrogen. Here, we...

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PMID: 31828388
DOI: 10.1007/s00248-019-01473-w

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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