What is it about?

This review advances engineering of biological nitrogen and photosynthetic carbon fixation, addressing oxygen sensitivity, energy demands, and inefficient catalysts. It proposes synthetic symbioses, pathway redesign, enzyme–chassis coordination, and consortia-based approaches for low-emission agriculture and biomanufacturing.

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Why is it important?

The most important points are: 1. Overcoming natural limitations – Solving the problems of oxygen sensitivity, high energy demands, and inefficient catalysts in nitrogen and carbon fixation. 2. Engineering solutions – Using synthetic symbioses, redesigned metabolic pathways, enzyme-chassis coordination, and microbial consortia. 3. Real-world goal – Achieving low-emission agriculture and sustainable biomanufacturing.

Perspectives

Promises low-emission alternatives to synthetic nitrogen fertilizers, reducing nitrous oxide emissions and energy-intensive Haber-Bosch processes. Synthetic symbioses and consortia could enable crops to fix their own nitrogen or recruit engineered soil microbes.

Qi Cheng

Read the Original

This page is a summary of: Biological nitrogen and carbon fixation: Bridging the gap between synthetic symbioses and synthetic biology, The Crop Journal, February 2026, Tsinghua University Press,
DOI: 10.1016/j.cj.2026.01.002.
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