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Bicarbonate uptake by marine Crenarchaeota

Wuchter, C. and Schouten, S. and Boschker, H.T.S. and Sinninghe Damsté, J.S. (2003) Bicarbonate uptake by marine Crenarchaeota. FEMS Microbiology Letters, 219, 203-207. ISSN 0378-1097.

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Official URL: http://dx.doi.org/10.1016/S0378-1097(03)00060-0

Abstract

Biphytanyl membrane lipids and 16S rRNA sequences derived from marine Crenarchaeota were detected in shallow North Sea surface water in February 2002. To investigate the carbon fixation mechanism of these uncultivated archaea in situ 13C bicarbonate tracer experiments were performed with this water in the absence of light. About 70% of the detected 13C incorporation into lipids (including fatty acids and sterols) is accounted for by the crenarchaeotal biphytanyl membrane lipids. This finding indicates that marine Crenarchaeota can utilize bicarbonate or CO2 derived thereof in the absence of light and are chemoautotrophic organisms [KEYWORDS: Crenarchaeota; Chemoautotrophy; Glycerol dibiphytanyl glycerol tetraethers (GDGTs)]

Item Type:Article
Institutes:Nederlands Instituut voor Ecologie (NIOO)
ID Code:11440
Deposited On:24 Nov 2011 01:00
Last Modified:31 Mar 2014 10:47

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