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Poster

Session: Session 2 Presenting Authors at Posters (Odds)

P-351 - Inoculation of microbial spore as a novel approach for enhancing wheat crop growth, resilience, mitigation of climate impacts, and effective biofertilizer development

Wednesday, July 16, 2025
13:30 - 15:15  
Location: Confex Hall 3
Plant microbiota functions and intermicrobial interactions

    Presenting Author(s)

  • SA

    Shafiqullah ARYAN

    PhD Student
    Tokyo University of Agriculture and Technology
    Fuchu, Tokyo, Japan

    • Author(s)

  • SH

    Safiullah Habibi

    Assistant Professor
    Tokyo University of Agriculture and Technology
    Fuchu, Tokyo, Japan

  • SA

    Shin-Ichiro Agake

    Assistant Professor
    Tokyo University of Agriculture and Technology
    Fuchu, Tokyo, Japan

  • MY

    Michiko Yasuda

    Assistant Professor
    Tokyo University of Agriculture and Technology
    Tokyo, Tokyo, Japan

  • YA

    Yosra Aoudi

    Tokyo University of Agriculture and Technology
    Fuchu, Tokyo, Japan

  • AS

    Ali Yawar Seerat

    Assistant Professor
    Tokyo University of Agriculture and Technology
    Fuchu, Tokyo, Japan

  • HA

    Hong An

    Assistant Professor
    University of Missouri
    Columbia, South Carolina, United States

  • GS

    Gray Stacey

    Professor
    University of Missouri
    Columbia, South Carolina, United States

  • NO

    Naoko Ohkama-Ohtsu

    Professor
    Tokyo University of Agriculture and Technology
    Fuchu, Tokyo, Japan

Spore-forming bacteria (SFB) survive under various environmental stress conditions such as heat and drought by transforming from their vegetative state into dormant endospores. Yet, the impact of these bacterial spores on plant growth under such adverse conditions remains unreported. In the present study, we isolated a total of 243 strains of SFB from the roots and rhizosphere soils of dry field crops such as corn, cotton, sorghum, soybean, peanut, taro, and rice. Sixty-two isolates were selected for further analysis based on their phenotypic characteristics and tolerances to abiotic stress. The bacterial genera distribution was Bacillus, Priestia, and Paenibacillus. Inoculation of spores from 13 selected isolates enhanced wheat shoot and root biomass under control and stress conditions (heat, drought, and combined heat-drought). Also, the mRNA levels of stress tolerance-related genes, including ascorbate peroxidase, catalase, and Δ¹-pyrroline-5-carboxylate synthetase, were induced by isolates under heat stress but not under drought in wheat plants. In addition, whole genome analysis of Paenibacillus and Priestia harbored drought tolerance genes, including nox, atpE, ppk, poxB, and ureA,  which might contribute to wheat tolerance. Our findings suggest a novel insight into the potential efficacy of spore inoculation in enhancing wheat plant growth resilience under heat and drought stress conditions.