Modes of action of non-pathogenic strains of Fusarium oxysporum in controlling Fusarium wilts

C. Alabouvette and Ch. Olivain
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C. Alabouvette: INRA-CMSE, BP 86510, 21065 Dijon-Cedex, France * Tel.: +33 380 693 040, Fax: + 33 380 693 226, E-mail: ala@dijon.inra.fr
Ch. Olivain: INRA-CMSE, BP 86510, 21065 Dijon-Cedex, France * Tel.: +33 380 693 040, Fax: + 33 380 693 226, E-mail: ala@dijon.inra.fr

Plant Protection Science, 2002, vol. 38, issue SI1-6thConfEFPP, 195-199

Abstract: Many studies have demonstrated the capacity of non-pathogenic strains of F. oxysporum to control Fusarium diseases.These non-pathogenic strains show several modes of action contributing to their biocontrol capacity. They are able tocompete for nutrients in the soil, affecting the rate of chlamydospore germination and the saprophytic growth of thepathogen, diminishing the probability for the pathogen to reach the root surface. They are competing with the pathogenat the root surface for colonization of infection sites, and inside the root where they induce plant defence reactions. Bytriggering the defence reactions, they induce systemic resistance of the plant. Depending on the strain, and on the plantspecies, these mechanisms are more or less important, leading to a more or less efficient biocontrol efficacy.

Keywords: competition; induced resistance; root colonization (search for similar items in EconPapers)
Date: 2002
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpps:v:38:y:2002:i:si1-6thconfefpp:id:10354-pps

DOI: 10.17221/10354-PPS

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