SAR11 dominance among metabolically active low nucleic acid bacterioplankton in surface waters along an Atlantic Meridional Transect


Mary, I., Heywood, J.L., Fuchs, B.M., Amann, R., Tarran, G.A., Burkill, P.H. and Zubkov, M.V. (2006) SAR11 dominance among metabolically active low nucleic acid bacterioplankton in surface waters along an Atlantic Meridional Transect Aquatic Microbial Ecology, 45, (2), pp. 107-113.

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Description/Abstract

Low nucleic acid (LNA) bacterioplankton (sorted by flow cytometry) were characterised in surface water samples along a meridional transect from 48°N to 40° S across the Atlantic Ocean. The LNA bacterioplankton abundance and metabolic activity, assessed by their 35S-methionine uptake rate, were similar along the transect, representing 36 ± 6 and 36 ± 11% of total bacterioplankton, respectively. Fluorescence in situ hybridisation analysis of the flow-sorted cells revealed that the LNA bacterioplankton population was dominated (59 ± 4%) by and contained virtually all the identifiable SAR11 clade cells throughout the Atlantic Ocean. Therefore, the present study provides ecological characterisation of this flow-sorted group and suggests both phylogenetic and functional constancy of the LNA bacterioplankton at the basin-scale.

Item Type: Article
ISSNs: 0948-3055 (print)
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Keywords: flow cytometry sorting, cell metabolic activity, SAR11 clade, CARD-FISH, radioactive tracer labelling, Atlantic Ocean
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ePrint ID: 43952
Date :
Date Event
2006Published
Date Deposited: 02 Feb 2007
Last Modified: 16 Apr 2017 18:46
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/43952

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