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Nature 461, 49-50 (3 September 2009) | doi:10.1038/461049a; Published online 2 September 2009
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Endowed Professorship in Neuroscience
- University of Tennessee Health Science Center
- Memphis, Tennessee, USA
Post Doctoral Research Assistant
- University of Bedfordshire
- Bedford, UK
Nitrogen cycle: Oceans apart
Maren Voss1 & Joseph P. Montoya2
Abstract
Reactive nitrogen is lost from the oceans as dinitrogen — N2 — produced by microbial metabolism. The latest twist in an ongoing story is that different pathways dominate in two of the oceanic regions concerned.
The availability of nitrogen limits biological production in much of the world ocean1; this in turn affects the strength of the 'biological pump' that converts carbon dioxide into organic matter that can sink and be sequestered in the deep sea2. The main input to the marine nitrogen cycle comes from the fixation of nitrogen gas (N2) into biologically available forms.
- Maren Voss is at the Leibniz Institute for Baltic Sea Research, Warnemünde, Seestrasse 15, D-18119 Rostock, Germany.
Email: maren.voss@io-warnemuende.de - Joseph P. Montoya is in the School of Biology, Georgia Institute of Technology, Atlanta, Georgia 30332, USA.
Email: joseph.montoya@biology.gatech.edu
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