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Induced Systemic Resistance (ISR) in Arabidopsis thaliana by Bacillus amyloliquefaciens and Trichoderma harzianum Used as Seed Treatments

Author

Listed:
  • Barakat Ilham

    (Laboratory of Phytopathology, Department of Production, Protection and Biotechnology, Agronomic and Veterinary Institute Hassan II, Rabat 10010, Morocco)

  • Chtaina Noureddine

    (Laboratory of Phytopathology, Department of Production, Protection and Biotechnology, Agronomic and Veterinary Institute Hassan II, Rabat 10010, Morocco)

  • Grappin Philippe

    (IRHS, INRA-University of Angers-Agrocampus-Ouest, Angers, SFR 4207 QuaSav, 49071 Beaucouze, France)

  • El Guilli Mohammed

    (Laboratory of Phytopathology and Post-Harvest Quality, Regional Centre for Agronomic Research, Kenitra 14070, Morocco)

  • Ezzahiri Brahim

    (Laboratory of Phytopathology, Department of Production, Protection and Biotechnology, Agronomic and Veterinary Institute Hassan II, Rabat 10010, Morocco)

  • Aligon Sophie

    (IRHS, INRA-University of Angers-Agrocampus-Ouest, Angers, SFR 4207 QuaSav, 49071 Beaucouze, France)

  • Neveu Martine

    (IRHS, INRA-University of Angers-Agrocampus-Ouest, Angers, SFR 4207 QuaSav, 49071 Beaucouze, France)

  • Marchi Muriel

    (IRHS, INRA-University of Angers-Agrocampus-Ouest, Angers, SFR 4207 QuaSav, 49071 Beaucouze, France)

Abstract

The Trichoderma fungal species and the bacteria Bacillus species were described as inducers of plant systemic resistance in relation to their antagonistic activity. The objective of this study was to evaluate the effect of selected strains of Bacillus amyloliquefaciens (I3) and Trichoderma harzianum (A) on inducing systemic resistance in Arabidopsis thaliana as a model for plant molecular genetics. The microorganisms were identified and were confirmed for their antagonistic potential in vitro and in vivo in previous studies. In order to explore this mechanism, two mutants of A. thaliana carrying a PR1 promoter (a conventional marker of salicylic acid (SA) pathway) and LOX2 promoter (a marker triggering jasmonic acid (JA) pathway activation) were analyzed after inoculating antagonists. Transgenic reporter line analysis demonstrated that B. amyloliquefaciens I3 and T. harzianum A induce A. thaliana defense pathways by activating SA and JA at a high level compared to lines treated with chemical elicitors of references (acibenzolar- S -methyl (Bion 50 WG (water-dispersible granule)), SA, and methyl jasmonate). The efficacy of B. amyloliquefaciens I3 and T. harzianum A in inducing the defense mechanism in A. thaliana was demonstrated in this study.

Suggested Citation

  • Barakat Ilham & Chtaina Noureddine & Grappin Philippe & El Guilli Mohammed & Ezzahiri Brahim & Aligon Sophie & Neveu Martine & Marchi Muriel, 2019. "Induced Systemic Resistance (ISR) in Arabidopsis thaliana by Bacillus amyloliquefaciens and Trichoderma harzianum Used as Seed Treatments," Agriculture, MDPI, vol. 9(8), pages 1-11, August.
    • Handle: RePEc:gam:jagris:v:9:y:2019:i:8:p:166-:d:253676
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    References listed on IDEAS

    as
    1. Geraldine Le Mire & Ali Siah & Marie-Noëlle Brisset & Matthieu Gaucher & Magali Deleu & M. Haissam Jijakli, 2018. "Surfactin Protects Wheat against Zymoseptoria tritici and Activates Both Salicylic Acid- and Jasmonic Acid-Dependent Defense Responses," Agriculture, MDPI, vol. 8(1), pages 1-14, January.
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      Keywords

      seed treatment; Bacillus amyloliquefaciens I3; Trichoderma harzianum A; salicylic acid; jasmonic acid; Arabidopsis thaliana;
      All these keywords.

      JEL classification:

      • I3 - Health, Education, and Welfare - - Welfare, Well-Being, and Poverty

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