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 Previous Article

Applied and Environmental Microbiology, April 2009, p. 2250-2252, Vol. 75, No. 7
0099-2240/09/$08.00+0     doi:10.1128/AEM.02452-08
Copyright © 2009, American Society for Microbiology. All Rights Reserved.

Enhanced Selenate Accumulation in Cupriavidus metallidurans CH34 Does Not Trigger a Detoxification Pathway{triangledown}

Laure Avoscan,1,{dagger} Marie Carrière,1 Olivier Proux,2 Géraldine Sarret,3 Jéril Degrouard,4 Jacques Covès,5* and Barbara Gouget1*

Laboratoire Pierre Süe, Groupe Toxicologie Humaine et Environnementale, CEA-CNRS UMR 9956, F91191 Gif-sur-Yvette, France,1 CRG-FAME Beamline, European Synchrotron Radiation Facility, F-38043 Grenoble, France,2 Environmental Geochemistry Group, LGIT, University of Grenoble and CNRS, BP 53, 38041 Grenoble Cedex 9, France,3 Laboratoire Développement, Morphogenèse et Evolution, Université Paris 11-CNRS UMR 8080, F91405 Orsay, France,4 Laboratoire des Protéines Membranaires Institut de Biologie Structurale—Jean-Pierre Ebel, UMR 5075 CNRS-CEA-UJF, 41 Rue Jules Horowitz, 38027 Grenoble Cedex, France5

Received 26 October 2008/ Accepted 30 January 2009

Cupriavidus metallidurans CH34 cells grown under sulfate-limited conditions accumulated up to six times more selenate than cells grown in sulfate-rich medium. The products of selenate reduction detected by X-ray absorption spectroscopy, electron microscopy, and energy-dispersive X-ray analysis did not define this strain as being a good candidate for bioremediation of selenate-contaminated environments.

* Corresponding author. Present address for Barbara Gouget: Afssa, Scientific Department, 27-31 Avenue du Général Leclerc, 94701 Maisons Alfort, France. Phone: 33 (0) 1-49-77-13-31. Fax: 33 (0) 1-49-77-13-54. E-mail: b.gouget{at}afssa.fr. Mailing address for Jacques Covès: Laboratoire des Protéines Membranaires Institut de Biologie Structurale—Jean-Pierre Ebel, UMR 5075 CNRS-CEA-UJF, 41 Rue Jules Horowitz, 38027 Grenoble Cedex, France. Phone: 33 (0) 4-38-78-24-03. Fax: 33 (0) 4-38-78-54-94. E-mail: jacques.coves{at}ibs.fr

{triangledown} Published ahead of print on 5 February 2009.

{dagger} Present address: INRA, Université de Bourgogne, UMR1229 Microbiologie du Sol et de l'Environnement, CMSE, 17 Rue Sully, BV 86510, F-21034 Dijon Cedex, France.

Applied and Environmental Microbiology, April 2009, p. 2250-2252, Vol. 75, No. 7
0099-2240/09/$08.00+0     doi:10.1128/AEM.02452-08
Copyright © 2009, American Society for Microbiology. All Rights Reserved.





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