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This is a Animal Study study (also classified as: In Vitro Study).

August 25, 2025Food and Energy SecurityOpen Access

Heat Stress‐Induced Reduction in Bioactive GA Content Decreases Rice Thermotolerance by Causing Membrane Damage Through Accumulated ROS

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Heat stress reduces thermotolerance in rice, revealing the roles of gibberellin and reactive oxygen species in plant resilience.

Heat stress reduces thermotolerance by decreasing gibberellin content, leading to membrane damage and higher reactive oxygen species accumulation.
The GA-deficient mutant d18 showed significantly lower thermotolerance compared to wild-type plants under heat stress conditions.
Observational analysis showed that applying exogenous gibberellin improved thermotolerance in d18, while its inhibitor worsened ROS accumulation.
These findings highlight the importance of GA-ROS homeostasis regulation for developing heat-resilient rice varieties and enhancing crop production.

Zhu et al. (2025) studied this question.

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