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Applied and Environmental Microbiology, March 2006, p. 2268-2271, Vol. 72, No. 3
0099-2240/06/$08.00+0     doi:10.1128/AEM.72.3.2268-2271.2006
Copyright © 2006, American Society for Microbiology. All Rights Reserved.

SHORT REPORT

Thermophilic Lifestyle for an Uncultured Archaeon from Hydrothermal Vents: Evidence from Environmental Genomics{dagger}

Hélène Moussard,1 Ghislaine Henneke,1 David Moreira,2 Vincent Jouffe,1 Purificacion López-García,2 and Christian Jeanthon1*

Laboratoire de Microbiologie des Environnements Extrêmes, UMR 6197, Centre National de la Recherche Scientifique, Ifremer & Université de Bretagne Occidentale, Institut Universitaire Européen de la Mer, 29280 Plouzané,1 Equipe Diversité et Evolution Microbiennes, Unité d'Ecologie, Systématique & Evolution, UMR 8079, Centre National de la Recherche Scientifique, Université de Paris-Sud, 91405 Orsay, France2

Received 25 July 2005/ Accepted 28 December 2005

We present a comparative analysis of two genome fragments isolated from a diverse and widely distributed group of uncultured euryarchaea from deep-sea hydrothermal vents. The optimal activity and thermostability of a DNA polymerase predicted in one fragment were close to that of the thermophilic archaeon Thermoplasma acidophilum, providing evidence for a thermophilic way of life of this group of uncultured archaea.

* Corresponding author. Present address: UMR 7144, Equipe Phytoplancton Océanique, Station Biologique, Place Georges Teissier, 29680 Roscoff Cedex, France. Phone: 33-298-292-379. Fax: 33-298-292-324. E-mail: jeanthon{at}sb-roscoff.fr.

{dagger} Supplemental material for this article may be found at http://aem.asm.org/.

Applied and Environmental Microbiology, March 2006, p. 2268-2271, Vol. 72, No. 3
0099-2240/06/$08.00+0     doi:10.1128/AEM.72.3.2268-2271.2006
Copyright © 2006, American Society for Microbiology. All Rights Reserved.





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