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    Question

    Which of the following statement is not true about

    fluorescent pseudomonas?
    A suppress the pathogens either directly through the production of various secondary metabolites or indirectly by inducing plant-mediated defense reactions. Correct Answer Incorrect Answer
    B Fluorescent pseudomonads are root colonizers because they occur in the natural habitat of rhizosphere Correct Answer Incorrect Answer
    C suppress the pathogens by antibiosis through the production of various antibiotic substances such as 2,4-diacetyl phloroglucinol, phenazine-1-carboxylic acid Correct Answer Incorrect Answer
    D suppress the pathogens by antibiosis through the production of various antibiotic substances such as 2,4-diacetyl phloroglucinol, phenazine-1-carboxylic acid Correct Answer Incorrect Answer
    E produce siderophores such as pseudobactin and pyoverdine which chelate the iron available in the soil and make it unavailable to pathogen thus the pathogen dies for want of iron. Correct Answer Incorrect Answer

    Solution

    In rice, seed treatment followed by root dipping and foliar spray with Pseudomonas fluorescens showed a higher induction of ISR (Induced Systemic Resistance) against sheath blight pathogen, R. solani.

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