English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/86839
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Title

Bacterial chemotaxis towards aromatic hydrocarbons in Pseudomonas

AuthorsLacal, Jesús ; Muñoz-Martínez, F.; Reyes-Darias, J. A.; Duque, Estrella; Matilla, Miguel A.; Segura, Ana; Ortega Calvo, J. J. ; Jiménez Sánchez, Celia ; Krell, Tino; Ramos, Juan L.
Issue Date2011
PublisherBlackwell Publishing
CitationEnvironmental Microbiology 13 (7): 1733-1744 (2011)
AbstractBacterial chemotaxis is an adaptive behaviour, which requires sophisticated information-processing capabilities that cause motile bacteria to either move towards or flee from chemicals. Pseudomonas putida DOT-T1E exhibits the capability to move towards different aromatic hydrocarbons present at a wide range of concentrations. The chemotactic response is mediated by the McpT chemoreceptor encoded by the pGRT1 megaplasmid. Two alleles of mcpT are borne on this plasmid and inactivation of either one led to loss of this chemotactic phenotype. Cloning of mcpT into a plasmid complemented not only the mcpT mutants but also its transfer to other Pseudomonas conferred chemotactic response to high concentrations of toluene and other chemicals. Therefore, the phenomenon of chemotaxis towards toxic compounds at high concentrations is gene-dose dependent. In vitro experiments show that McpT is methylated by CheR and McpT net methylation was diminished in the presence of hydrocarbons, what influences chemotactic movement towards these chemicals.
Description12 pages, 5 figures, 2 tables, 48 references.
Publisher version (URL)http://dx.doi.org/10.1111/j.1462-2920.2011.02493.x
URIhttp://hdl.handle.net/10261/86839
DOI10.1111/j.1462-2920.2011.02493.x
ISSN1462-2912
Appears in Collections:(IRNAS) Artículos
(EEZ) Artículos
Files in This Item:
File Description SizeFormat 
Bacterial chemotaxis.pdf5,69 MBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.