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High rate of uptake of organic nitrogen compounds by Prochlorococcus cyanobacteria as a key to dominance in oligotrophic oceanic waters

High rate of uptake of organic nitrogen compounds by Prochlorococcus cyanobacteria as a key to dominance in oligotrophic oceanic waters
High rate of uptake of organic nitrogen compounds by Prochlorococcus cyanobacteria as a key to dominance in oligotrophic oceanic waters
Direct evidence that marine cyanobacteria take up organic nitrogen compounds in situ at high rates is reported. About 33% of the total bacterioplankton turnover of amino acids, determined with a representative [35S]methionine precursor and flow sorting, can be assigned to Prochlorococcus spp. and 3% can be assigned to Synechococcus spp. in the oligotrophic and mesotrophic parts of the Arabian Sea, respectively. This finding may provide a mechanism for Prochlorococcus' competitive dominance over both strictly autotrophic algae and other bacteria in oligotrophic regions sustained by nutrient remineralization via a microbial loop.
0099-2240
1299-1304
Zubkov, M.V.
b1dfb3a0-bcff-430c-9031-358a22b50743
Fuchs, B.M.
1edd27c8-6b61-47f1-9c65-788d3fef9fd3
Tarran, G.A.
c6e9fb51-321c-4fb6-a2b0-00a58c344d73
Burkill, P.H.
91175019-8b55-4fb5-84ea-334c12de2557
Amann, R.
c56b595a-e2d2-43f4-b058-a34b5fcf05f8
Zubkov, M.V.
b1dfb3a0-bcff-430c-9031-358a22b50743
Fuchs, B.M.
1edd27c8-6b61-47f1-9c65-788d3fef9fd3
Tarran, G.A.
c6e9fb51-321c-4fb6-a2b0-00a58c344d73
Burkill, P.H.
91175019-8b55-4fb5-84ea-334c12de2557
Amann, R.
c56b595a-e2d2-43f4-b058-a34b5fcf05f8

Zubkov, M.V., Fuchs, B.M., Tarran, G.A., Burkill, P.H. and Amann, R. (2003) High rate of uptake of organic nitrogen compounds by Prochlorococcus cyanobacteria as a key to dominance in oligotrophic oceanic waters. Applied and Environmental Microbiology, 69 (2), 1299-1304. (doi:10.1128/AEM.69.2.1299-1304.2003).

Record type: Article

Abstract

Direct evidence that marine cyanobacteria take up organic nitrogen compounds in situ at high rates is reported. About 33% of the total bacterioplankton turnover of amino acids, determined with a representative [35S]methionine precursor and flow sorting, can be assigned to Prochlorococcus spp. and 3% can be assigned to Synechococcus spp. in the oligotrophic and mesotrophic parts of the Arabian Sea, respectively. This finding may provide a mechanism for Prochlorococcus' competitive dominance over both strictly autotrophic algae and other bacteria in oligotrophic regions sustained by nutrient remineralization via a microbial loop.

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Published date: 2003

Identifiers

Local EPrints ID: 1311
URI: http://eprints.soton.ac.uk/id/eprint/1311
ISSN: 0099-2240
PURE UUID: 7e3b4fd0-c788-4502-b858-c2c552c687c3

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Date deposited: 23 Apr 2004
Last modified: 15 Mar 2024 04:43

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Contributors

Author: M.V. Zubkov
Author: B.M. Fuchs
Author: G.A. Tarran
Author: P.H. Burkill
Author: R. Amann

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