Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/42664
Title: Aeromonas hydrophila lateral flagella gene transcriptional hierarchy
Author: Wilhelms, M.
González, V.
Tomàs Magaña, Juan
Merino Montero, Susana
Keywords: Bacteris
Genètica bacteriana
Creixement bacterià
Bacteria
Bacterial genetics
Bacterial growth
Issue Date: 2013
Publisher: American Society for Microbiology
Abstract: Aeromonas hydrophila AH-3 lateral flagella are not assembled when bacteria grow in liquid media; however, lateral flagellar genes are transcribed. Our results indicate that A. hydrophila lateral flagellar genes are transcribed at three levels (class I to III genes) and share some similarities with, but have many important differences from, genes of Vibrio parahaemolyticus. A. hydrophila lateral flagellum class I gene transcription is σ(70) dependent, which is consistent with the fact that lateral flagellum is constitutively transcribed, in contrast to the characteristics of V. parahaemolyticus. The fact that multiple genes are included in class I highlights that lateral flagellar genes are less hierarchically transcribed than polar flagellum genes. The A. hydrophila lafK-fliEJL gene cluster (where the subscript L distinguishes genes for lateral flagella from those for polar flagella) is exclusively from class I and is in V. parahaemolyticus class I and II. Furthermore, the A. hydrophila flgAMNL cluster is not transcribed from the σ(54)/LafK-dependent promoter and does not contain class II genes. Here, we propose a gene transcriptional hierarchy for the A. hydrophila lateral flagella.
Note: Reproducció del document publicat a: http://dx.doi.org/10.1128/JB.01994-12
It is part of: Journal of Bacteriology, 2013, vol. 195, num. 7, p. 1436-1445
Related resource: http://dx.doi.org/10.1128/JB.01994-12
URI: http://hdl.handle.net/2445/42664
ISSN: 0021-9193
Appears in Collections:Articles publicats en revistes (Genètica, Microbiologia i Estadística)

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