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Applied and Environmental Microbiology, March 2002, p. 1478-1484, Vol. 68, No. 3
0099-2240/02/$04.00+0 DOI: 10.1128/AEM.68.3.1478-1484.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.
Widespread Distribution in Polar Oceans of a 16S rRNA Gene Sequence with Affinity to Nitrosospira-Like Ammonia-Oxidizing Bacteria
James T. Hollibaugh,1* Nasreen Bano,1 and Hugh W. Ducklow2
Department of Marine Sciences, University of Georgia, Athens, Georgia 30602-3636,1
Virginia Institute of Marine Sciences, College of William and Mary, Gloucester Point, Virginia 23062-13462
Received 19 July 2001/
Accepted 12 December 2001
We analyzed the phylogenetic compositions of ammonia-oxidizing bacteria of the ß subclass of Proteobacteria from 42 Southern Ocean samples. We found a Nitrosospira-like 16S rRNA gene sequence in all 20 samples that yielded PCR products (8 of 30 samples from the Ross Sea and 12 of 12 samples from the Palmer Peninsula). We also found this sequence in Arctic Ocean samples, indicating a transpolar, if not global, distribution; however, slight differences between Arctic and Antarctic sequences may be evidence of polar endemism.
* Corresponding author. Mailing address: Department of Marine Sciences, Marine Sciences Building, Rm. 248, 1030 Sanford Dr., University of Georgia, Athens, GA 30602-3636. Phone: (706) 542-3016. Fax: (706) 542-5888. E-mail:
aquadoc{at}uga.edu.
Applied and Environmental Microbiology, March 2002, p. 1478-1484, Vol. 68, No. 3
0099-2240/02/$04.00+0 DOI: 10.1128/AEM.68.3.1478-1484.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.
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