RsHSFA3 of Rhododendron simsii confers plant heat tolerance by molecular regulation.
- Open access
RsHSFA3 enhances heat tolerance in Rhododendron simsii by activating heat shock proteins and improving ROS scavenging capacity.
- Why it matters: Heat-sensitive Rhododendron species face cultivation challenges due to global warming, and understanding genetic mechanisms can aid in developing more resilient plants.
- What they did: Researchers identified 22 HSF genes in R. simsii, focusing on RsHSFA3, which was rapidly induced by heat stress; they used gene overexpression, CRISPR editing, and various assays to study its function.
- The result: RsHSFA3 boosts heat tolerance by regulating heat shock proteins and ROS detoxification, providing a genetic basis for breeding heat-resistant Rhododendron varieties.