The Pseudomonas aeruginosa rhlAB operon is not expressed during the logarithmic phase of growth even in the presence of its activator RhlR and the autoinducer N-butyryl-homoserine lactone.
J Bacteriol
; 185(1): 377-80, 2003 Jan.
Article
em En
| MEDLINE
| ID: mdl-12486077
The Pseudomonas aeruginosa rhlAB operon encodes the enzyme rhamnosyltransferase 1, which produces the biosurfactant mono-rhamnolipid; rhlAB induction is dependent on the quorum-sensing transcription activator RhlR complexed with the autoinducer N-butyryl-homoserine lactone (C(4)-HSL). In this work we studied rhlAB induction in a P. aeruginosa and Escherichia coli background. We found that, in both bacteria, its expression is not induced during the logarithmic phase of growth even in the presence of RhlR and C(4)-HSL. Additionally, we found that rhlAB expression is partially sigma(s) dependent.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Óperon
/
Pseudomonas aeruginosa
/
Proteínas de Bactérias
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4-Butirolactona
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Regulação Bacteriana da Expressão Gênica
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Hexosiltransferases
Limite:
Humans
Idioma:
En
Revista:
J Bacteriol
Ano de publicação:
2003
Tipo de documento:
Article
País de afiliação:
México
País de publicação:
Estados Unidos