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November 19, 2025Physiology and Molecular Biology of PlantsOpen Access

Transcriptomic, biochemical, and microbiome assessments into drought and salinity tolerance in durum wheat mediated by plant growth-promoting bacteria

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Authors

MKMohammad Yaghoubi KhanghahiHAHamada AbdElgawadMCMaddalena Curci

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Overview

Genome-wide analysis reveals improved drought tolerance and antioxidant activity in durum wheat, indicating the role of plant growth-promoting bacteria.

Key Points

  • To investigate how plant growth-promoting bacteria enhance drought and salinity tolerance in durum wheat through molecular mechanisms.
  • Conducted soil and seed inoculation with plant growth-promoting bacteria (PGPB) under drought and salinity stress.
  • Utilized 16 S rRNA sequencing to analyze bacterial community composition in grain.
  • Performed genome-wide analysis to assess gene expression changes in response to PGPB.
  • Identified 153 up-regulated and 33 down-regulated plant genes related to stress tolerance after PGPB treatment.
  • Increased antioxidant activity by 27% to 283% in PGPB-treated plants under stress conditions.
  • Notable changes in enzyme activities, including increased glutamate synthase by 40-44% and decreased protein-tyrosine-phosphatase by 29-31%.

Cite This Study

Khanghahi et al. (2025) studied this question.

synapsesocial.com/papers/6924f095c0ce034ddc350aedhttps://doi.org/10.1007/s12298-025-01686-z
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  1. 1Evaluation of the Plant Growth-Promoting Microorganisms Potential for Drought Alleviation in Wheat Plants2026
  2. 2Study on the isolation of rhizosphere bacteria and the mechanism of growth promotion in winter wheat in response to drought stress2025 · 4 citations
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  4. 4Plant Growth-Promoting Endophytes Bacillus subtilis Alleviate Combined Herbicide and Drought Stress in Triticum aestivum L. via Modulation of Antioxidants and GABA2026
  5. 5Genomic and physiological insights into salt-tolerant PGPB Citrobacter freundii S5 isolated from halite for salinity stress mitigation in wheat (Triticum aestivum L.)2026