Scientists get a cellular-level remote control for root growth
Bilas RD, Guiziou S
Crispr
The next generation of drought-tolerant crops and resilient landscaping plants may come from scientists learning to dial in exactly how deep and wide a root system grows before the seed ever goes in the ground.
Researchers are mapping exactly which genes switch on in each individual root cell as a plant grows, using tools that can track a cell's entire history. That detailed map lets them build genetic circuits that direct roots to grow differently depending on conditions like drought or poor soil, essentially giving plants a programmable root system. The goal is roots that can be engineered to respond and adapt on command rather than just grow the same way every time.
Key Findings
Single-cell and spatial transcriptomic technologies now allow researchers to resolve root development at individual cell resolution
Lineage tracing and genetic recording can capture a root cell's developmental history, enabling history-dependent engineering strategies
Programmable genetic circuits combined with cell-type-specific engineering can create reversible, context-dependent root responses to environmental signals
chevron_right Technical Summary
Scientists are using new cell-tracking tools and genetic engineering to precisely control how plant roots grow, which could help create crops that better withstand drought and poor soil.
Abstract Preview
Original paper
Engineering root development with high precision.
Root development is controlled by dynamic interactions between gene regulation, hormonal signalling, developmental history and environmental inputs, creating multiple layers of control that can be ...
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