Phase-variable expression of an operon encoding extracellular alkaline protease, a serine protease homolog, and
P Chabeaud1, A de Groot, W Bitter
1CEA/Cadarache, DSV-DEVM, Laboratoire d'Ecologie Microbienne de la Rhizosphère, UMR 163 CNRS-CEA, F-13108 Saint-Paul-lez-Durance, France.
Journal of Bacteriology
|February 27, 2001
Abstract:
The rhizobacterium Pseudomonas brassicacearum forms phenotypic variants which do not show extracellular protease and lipase activity. The operon encoding these enzymes, a serine protease homolog, and a type I secretion machinery was characterized. Transcriptional lacZ gene fusions revealed that the expression of the operon is under the control of phase variation.
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