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Applied and Environmental Microbiology, January 2009, p. 242-245, Vol. 75, No. 1
0099-2240/09/$08.00+0     doi:10.1128/AEM.01462-08
Copyright © 2009, American Society for Microbiology. All Rights Reserved.

Abundances of Hyperthermophilic Autotrophic Fe(III) Oxide Reducers and Heterotrophs in Hydrothermal Sulfide Chimneys of the Northeastern Pacific Ocean {triangledown} ,{dagger}

Helene C. Ver Eecke,1 Deborah S. Kelley,2 and James F. Holden1,3*

Department of Microbiology, University of Massachusetts, Amherst, Massachusetts,1 School of Oceanography, University of Washington, Seattle, Washington,2 Molecular and Cellular Biology Program, University of Massachusetts, Amherst, Massachusetts3

Received 30 June 2008/ Accepted 24 October 2008

The abundances of hyperthermophilic heterotrophs, methanogens, and autotrophic reducers of amorphous Fe(III) oxide in 18 samples of deep-sea hydrothermal vent sulfide chimneys of the Endeavour Segment were measured. The results indicate that conditions favor the growth of iron reducers toward the interiors of these deposits and that of heterotrophs toward the outer surfaces near high-temperature polychaete worms (Paralvinella sulfincola).

* Corresponding author. Mailing address: N203 Morrill Science Center IV North, Department of Microbiology, University of Massachusetts, Amherst, MA 01003. Phone: (413) 577-1742. Fax: (413) 545-1578. E-mail: jholden{at}microbio.umass.edu

{triangledown} Published ahead of print on 31 October 2008.

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

Applied and Environmental Microbiology, January 2009, p. 242-245, Vol. 75, No. 1
0099-2240/09/$08.00+0     doi:10.1128/AEM.01462-08
Copyright © 2009, American Society for Microbiology. All Rights Reserved.





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