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January 26, 2026International Journal of Phytoremediation

Exogenous γ-aminobutyric acid alleviates the cadmium toxicity in rice ( Oryza sativa L.) by promoting growth, regulating Cd distribution, and modulating stress-responsive gene expression

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Authors

JSJun ShiSichuan Academy of Agricultural SciencesSYSiqi YanZigong First People's HospitalHYHong YuChinese Research Academy of Environmental Sciences

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Implication

Demonstrates how GABA promotes rice growth and gene regulation under cadmium stress, indicating a potential for improving rice resilience.

Key Points

  • The aim was to investigate how GABA affects rice growth and Cd toxicity mechanisms under Cd stress.
  • Applied GABA at 0.25 mmol L-1 to rice under Cd stress (1 mg L-1) with three biological replicates.
  • Measured biomass accumulation in roots and shoots and Cd distribution in tissues.
  • Conducted transcriptome profiling to identify differentially expressed genes linked to stress response.
  • GABA increased root and shoot biomass by 47.22% and 23.72%, respectively, compared to Cd treatment.
  • GABA decreased root and shoot Cd contents by 6.56% and 39.16%, respectively.
  • Identified 1570 DEGs in control vs Cd, 1233 DEGs in control vs GABA, and 232 DEGs in Cd vs GABA treatments.

Cite This Study

Shi et al. (2026) studied this question.

synapsesocial.com/papers/697703f6722626c4468e8eb6https://doi.org/10.1080/15226514.2026.2621119
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