Heat Shock Factor TaHSFA6e Interacts With TaNAC019 to Activate TaHSP70 Expression and Positively Contributes to Salt Stress in Wheat.

Heat shock factor TaHSFA6e and TaNAC019 synergistically activate TaHSP70, enhancing salt tolerance in wheat, with a single-nucleotide change reducing this effect.

• Why it matters: Soil salinization threatens wheat production globally, and understanding genetic mechanisms can help develop more resilient crops to combat increasing salt stress.
• What they did: Researchers identified TaHSP70 as a positive regulator of salt stress response and demonstrated that TaHSFA6e and TaNAC019 physically interact to promote its expression, with overexpression improving salt tolerance in wheat.
• The result: These findings underscore the critical role of the heat shock protein pathway in salt stress adaptation, offering potential targets for breeding salt-tolerant wheat varieties.