Tiny CO2-boosting cell structures could supercharge future crop yields
Li T, Chen W, Chriscoli V, Liu LN
Crop Improvement
The push to engineer these carbon-concentrating compartments into crop plants could eventually mean more food grown on the same land with less water and fertilizer, a change that would ripple from research greenhouses to backyard vegetable beds.
Some algae and bacteria have tiny built-in factories called carboxysomes that pack a carbon-capturing enzyme together with a helper enzyme inside a protective shell, letting them fix carbon dioxide into food far more efficiently than most plants do. Researchers are now studying how these factories assemble themselves so they can build customized versions and eventually transplant them into crop plants, which could make those plants better at turning CO2 into growth. It's an early-stage engineering project, but the long-term goal is crops that grow faster and use resources more efficiently.
Key Findings
Carboxysomes encapsulate Rubisco and carbonic anhydrase inside a semipermeable protein shell to raise local CO2 levels around the carbon-fixing enzyme
Key engineering challenges include precisely controlling shell permeability, achieving efficient cargo encapsulation, and integrating carboxysomes into non-native host organisms
Researchers propose repurposing carboxysome architecture as programmable nanomaterials beyond their natural carbon-fixation role
chevron_right Technical Summary
Scientists are reengineering microscopic protein compartments found in some photosynthetic organisms that concentrate CO2 around a key carbon-fixing enzyme, aiming to make crops and other organisms far more efficient at capturing carbon from the air.
Abstract Preview
Original paper
From fundamental understanding to engineering of carboxysomes for biotechnological applications.
Carboxysomes are self-assembling proteinaceous microcompartments that encapsulate ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) and carbonic anhydrase within a semipermeable shell, ther...
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