Story perspectives

Breakthrough Microbes Could Slash Fertilizer Use and Emissions

11/8/2025

Summary

Researchers Enhance Nitrogen-Fixing

Researchers have advanced plants thriving without synthetic nitrogen fertilizers.
Synthetic fertilizers currently consume about two percent of global energy and emit CO2.
The goal is to engineer soil microbes to fix atmospheric nitrogen for crops such as wheat, maize, and rice.
Michael Miile from Joyn Bio calls for more durable, versatile nitrogen-fixing microbes across soil types.
Successful development could reduce fertilizer use and environmental impact.

Summary

Researchers Transform Plant Responses

Researchers at Aarhus University identified two amino acid residues in the Nod factor receptor NFR1 that switch plant responses from immune defense to symbiosis with nitrogen-fixing bacteria.
They defined the Symbiosis Determinant 1 (SD1) motif, enabling engineering of wheat and barley to form beneficial bacterial partnerships.
The findings show small changes in receptor kinases can alter plant behavior and could reduce dependence on synthetic fertilizers, guiding sustainable agriculture.

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Researchers Enhance Nitrogen-Fixing

Researchers have advanced plants thriving without synthetic nitrogen fertilizers.
Synthetic fertilizers currently consume about two percent of global energy and emit CO2.
The goal is to engineer soil microbes to fix atmospheric nitrogen for crops such as wheat, maize, and rice.
Michael Miile from Joyn Bio calls for more durable, versatile nitrogen-fixing microbes across soil types.
Successful development could reduce fertilizer use and environmental impact.

1 / 2