An ABF5b-HsfA2h/HsfC2a-NCED2b/POD4/HSP26 module integrates multiple signaling pathway to modulate heat stress tolerance in wheat.

ABSTRACT: Heat stress caused by increasing global temperature has become a major factor limiting yield in wheat. Heat shock transcription factors (Hsfs), as the primary regulators in plant responses to heat stress, play essential roles in modulating both basal and acquired thermotolerance in plants. However, the underlying molecular mechanisms remain to be elucidated. By analysing the wheat transcriptome after subjecting wheat to heat treatments for different time intervals, we identified gene TaHsfA2h that showed a significant positive regulatory response to heat stress. Heat stress tolerance was enhanced by overexpression of TaHsfA2h and constrained by its RNA interference. RNA-seq analysis demonstrated that the overexpression of TaHsfA2h significantly enhanced the expression levels of genes invol

SUBMITTER: Wei JT 

PROVIDER: S-EPMC12576446 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature