HDAC-mediated non-histone deacetylation as a central regulatory network integrating crop growth and stress adaptation.
Wang C, Wang D, Wang H, Zhao X, You Y
Crop Improvement
Tomatoes, wheat bread, and rice on your plate could become more reliably abundant as breeders use these newly mapped molecular switches to engineer crops that endure the heatwaves, droughts, and disease outbreaks increasingly hitting farms worldwide.
Plants have a clever system where special proteins can chemically tag other proteins to turn them on or off — like flipping light switches — depending on whether the plant is growing happily or under attack. Researchers reviewed how this switching system works across the whole plant cell, not just in the nucleus as once thought, controlling everything from root growth to fighting off viruses and fungi. Understanding these switches gives plant breeders a precise new toolkit to breed crops that grow fast in good conditions but can also tough out bad ones.
Key Findings
HDAC enzymes regulate non-histone proteins across diverse cellular pathways in Arabidopsis, rice, and wheat — extending their role far beyond controlling gene expression in the nucleus
Non-histone deacetylation modulates plant responses to at least seven distinct stress types: salt, heat, cold, drought, viral, fungal, and oomycete pathogens
A dynamic antagonism between HDAC and HAT enzymes functions as a molecular switch that balances plant growth against stress resilience, offering a target for rational crop design via genome editing
chevron_right Technical Summary
Scientists have mapped how a family of enzymes called HDACs acts as a molecular control panel in crops like rice and wheat, toggling proteins on and off to help plants grow well under normal conditions and survive stresses like drought, heat, and fungal attack — all without changing the DNA itself.
Abstract Preview
Non-histone deacetylation is a widespread and reversible post-translational modification (PTM) dynamically regulated by histone acetyltransferases (HATs) and histone deacetylases (HDACs). Although ...
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