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, Markus González-Fernández, Verónica 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 |
URI: | http://hdl.handle.net/2445/42664 |
Related resource: | http://dx.doi.org/10.1128/JB.01994-12 |
ISSN: | 0021-9193 |
Appears in Collections: | Articles publicats en revistes (Genètica, Microbiologia i Estadística) |
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625145.pdf | 1.32 MB | Adobe PDF | View/Open |
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