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Applied and Environmental Microbiology, July 2004, p. 4384-4386, Vol. 70, No. 7
0099-2240/04/$08.00+0     DOI: 10.1128/AEM.70.7.4384-4386.2004
Copyright © 2004, American Society for Microbiology. All Rights Reserved.

SHORT REPORT

Degradation and Turnover of Extracellular DNA in Marine Sediments: Ecological and Methodological Considerations

Antonio Dell'Anno* and Cinzia Corinaldesi

Department of Marine Sciences, Faculty of Science, Polytechnic University of Marche, 60131 Ancona, Italy

Received 21 November 2003/ Accepted 5 March 2004

ABSTRACT

Degradation rates of extracellular DNA determined in marine sediments were much higher than those in the water column. However, due to the high sediment DNA content, turnover times were much shorter in seawater. Results reported here provide new insights into the role of extracellular DNA in P cycling in marine ecosystems.

* Corresponding author. Mailing address: Department of Marine Science, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, Italy. Phone: 39 071 220 4335. Fax: 39 071 220 4650. E-mail: dellanno{at}univpm.it.

Applied and Environmental Microbiology, July 2004, p. 4384-4386, Vol. 70, No. 7
0099-2240/04/$08.00+0     DOI: 10.1128/AEM.70.7.4384-4386.2004
Copyright © 2004, American Society for Microbiology. All Rights Reserved.



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