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Applied and Environmental Microbiology, November 2009, p. 7298-7300, Vol. 75, No. 22
0099-2240/09/$08.00+0     doi:10.1128/AEM.01231-09
Copyright © 2009, American Society for Microbiology. All Rights Reserved.

Bacteria, Archaea, and Crenarchaeota in the Epilimnion and Hypolimnion of a Deep Holo-Oligomictic Lake {triangledown}

Cristiana Callieri,1* Gianluca Corno,1 Emanuele Caravati,1 Serena Rasconi,1,2 Mario Contesini,1 and Roberto Bertoni1

CNR-ISE, Institute of Ecosystem Study, Verbania Pallanza, Italy,1 UMR CNRS 6023, Université B. Pascal, Clermont Ferrand, France2

Received 29 May 2009/ Accepted 15 September 2009

In a deep, subalpine holo-oligomictic lake, the relative abundance of Archaea and Crenarchaeota, but not that of Bacteria, increases significantly with depth and varies seasonally. Cell-specific prokaryotic productivity is homogeneous along the water column. The concept of active Archaea observed in the deep ocean can therefore be extended to a deep oxic lake.

* Corresponding author. Mailing address: CNR-ISE, Institute of Ecosystem Study, Largo Tonolli 50, 28922 Verbania-Pallanza, Italy. Phone: 39 0323 518320. Fax: 39 0323 556513. E-mail: c.callieri{at}ise.cnr.it

{triangledown} Published ahead of print on 18 September 2009.

Applied and Environmental Microbiology, November 2009, p. 7298-7300, Vol. 75, No. 22
0099-2240/09/$08.00+0     doi:10.1128/AEM.01231-09
Copyright © 2009, American Society for Microbiology. All Rights Reserved.





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