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December 9, 2025BMC Plant BiologyOpen Access

Thermal priming enhances heat tolerance in alfalfa (Medicago sativa L.) through activation of multiple metabolic pathways

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Authors

CJCenhong JinHenan UniversityJSJingliang SunBeijing Institute of TechnologyJZJinrui ZhaoGuangxi Normal University

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Implication

Investigation reveals thermal priming improves heat tolerance in alfalfa by enhancing oxidative stress management and metabolic pathways.

Key Points

  • This research aims to elucidate the mechanisms by which thermal priming enhances heat tolerance in alfalfa.
  • Physiological, transcriptomic, and metabolomic approaches employed.
  • Two-hour exposure to 37℃ (P1) followed by 43℃ (P2) for treatment groups compared to unprimed controls.
  • Analysis of gene expression changes and metabolite accumulation.
  • Thermal priming enhanced lodging resistance and improved oxidative stress management.
  • Significant upregulation of 1,267 genes with 47.9% activated during the priming phase.
  • Induced pathways included brassinosteroid signaling and oxidative stress response metrics.

Cite This Study

Jin et al. (2025) studied this question.

synapsesocial.com/papers/69401d682d562116f28f918dhttps://doi.org/10.1186/s12870-025-07726-w
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