Phase separation of an FtAT-hook transcription factor regulates seed development under heat stress in Tartary buckwheat - PubMed
7 hours ago
- #Phase separation
- #Tartary buckwheat
- #Heat stress
- Heat stress threatens crop production and food security, necessitating the identification of thermotolerance genes.
- A Tartary buckwheat FtAT-hook transcription factor undergoes phase separation, negatively regulating seed development under heat stress.
- FtAT-hook increases the expression of sugar transporter gene FtERDL6 and flavonoid synthesis gene FtFLS.
- FtASR (abscisic acid stress-ripening protein) interacts with FtAT-hook, influencing its phase separation under heat stress.
- Kaempferitrin, a downstream product of FtFLS, suppresses FtAT-hook phase separation via negative feedback.
- Exogenous kaempferitrin enhances FtASR-FtAT-hook interaction, improving seed size under heat stress.
- Findings suggest flavonoid compounds can modulate protein phase separation, offering strategies to enhance crop resilience.