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In vivo and in vitro interactions between Pseudomonas fluorescens and Pythium ultimum in the suppression of damping-off in tomato seedlings


In vivo and in vitro interactions between Pseudomonas fluorescens and Pythium ultimum in the suppression of damping-off in tomato seedlings



Biological Control 19(1): 1-8



ISSN/ISBN: 1049-9644

DOI: 10.1006/bcon.2000.0840

Pseudomonas fluorescens 5.014 and its mutant strain, 5-2/4 (transformed to produce 2,4-diacetylphloroglucinol (phl)) were evaluated as biological control agents against damping off caused by Pythium ultimum var. ultimum in tomato (cv. Gitana) seedlings and in vitro. The effect of phl on the content of glutathione (GSH) in Pythium ultimum was investigated. In addition, attempts were made to detect siderophore and antibiotic production by Pseudomonas fluorescens in the rhizosphere.

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Accession: 003472841

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