Extracellular protease and phospholipase C are controlled by the global regulatory gene gacA in the biocontrol strain Pseudomonas fluorescens CHA0
作者： Priska Sacherer , Geneviève Défago , Dieter Haas
DOI: 10.1111/J.1574-6968.1994.TB06694.X
关键词:
摘要: Pseudomonas fluorescens strain CHA0 protects plants from various root diseases. Antibiotic metabolites synthesized by this play an important role in disease suppression; their production is mediated the global activator gene gacA. Here we show complementation that gacA also essential for expression of two extracellular enzymes P. CHA0: phospholipase C and a 47-kDa metalloprotease. In contrast, another exoenzyme, lipase, not regulated gene. Protease, antibiotics are all known to be optimally produced at end exponential growth; thus, appears general stationary-phase regulator.
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