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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. 2003 Jan; 185(1):377-80.JB

Abstract

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.

Authors+Show Affiliations

Departamento de Microbiología Molecular, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, Morelos 62251, Mexico.No affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

12486077

Citation

Medina, Gerardo, et al. "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." Journal of Bacteriology, vol. 185, no. 1, 2003, pp. 377-80.
Medina G, Juárez K, Soberón-Chávez G. 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. 2003;185(1):377-80.
Medina, G., Juárez, K., & Soberón-Chávez, G. (2003). 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. Journal of Bacteriology, 185(1), 377-80.
Medina G, Juárez K, Soberón-Chávez G. 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. 2003;185(1):377-80. PubMed PMID: 12486077.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - 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. AU - Medina,Gerardo, AU - Juárez,Katy, AU - Soberón-Chávez,Gloria, PY - 2002/12/18/pubmed PY - 2003/2/5/medline PY - 2002/12/18/entrez SP - 377 EP - 80 JF - Journal of bacteriology JO - J. Bacteriol. VL - 185 IS - 1 N2 - 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. SN - 0021-9193 UR - https://www.unboundmedicine.com/medline/citation/12486077/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_ L2 - http://jb.asm.org/cgi/pmidlookup?view=long&pmid=12486077 DB - PRIME DP - Unbound Medicine ER -