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June 13, 2026BMC Plant BiologyOpen Access

γ-Aminobutyric Acid (GABA) enhances heat tolerance in rice via integrated antioxidant defense, metabolic homeostasis and heat shock response

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Authors

YWYuxing WangJWJialin WangFWFang Wang

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Overview

Randomized trial demonstrates GABA enhances heat tolerance in rice, suggesting a viable crop production strategy.

Key Points

  • The study aims to explore the role of GABA in enhancing heat tolerance in rice seedlings under stress conditions.
  • Exogenous GABA was applied at 0.1 mM to rice seedlings to assess heat tolerance effects.
  • Key parameters such as oxidative damage, antioxidant capacity, and gene expression were analyzed under heat stress.
  • Transcriptome and quantitative analysis were conducted to examine metabolic changes due to GABA supplementation.
  • GABA application alleviated heat-induced growth inhibition and reduced ROS accumulation, improving growth.
  • Significant up-regulation of antioxidant enzymes and elevated glutathione levels were observed, enhancing antioxidant capacity.
  • GABA modulated heat signaling pathways, increasing heat shock gene expression, which improved overall heat resilience.

Cite This Study

Wang et al. (2026) studied this question.

synapsesocial.com/papers/6a2cf6aefaef96ed7f058515https://doi.org/10.1186/s12870-026-09249-4
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