Inactivation of the Regulatory Gene algU or gacA Can Affect the Ability of Biocontrol Pseudomonas fluorescens CHA0 To Persist as Culturable Cells in Nonsterile Soil |
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| Authors: | Fabio Mascher, Yvan Moë nne-Loccoz, Ursula Schnider-Keel, Christoph Keel, Dieter Haas, Genevi ve D fago |
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| Affiliation: | Fabio Mascher, Yvan Moënne-Loccoz, Ursula Schnider-Keel, Christoph Keel, Dieter Haas, and Geneviève Défago |
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| Abstract: | Rifampin-resistant Pseudomonas fluorescens CHA0-Rif and mutants in which the regulatory gene algU (encoding sigma factor σE) or gacA (encoding a global regulator of secondary metabolism) was inactivated were compared for persistence in three nonsterile soils. Functional algU and (particularly) gacA were needed for CHA0-Rif to maintain cell culturability in soil. |
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