Journal
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
Volume 25, Issue 30, Pages 30739-30743Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s11356-018-1744-5
Keywords
Two-dimensional NMR; 2-aminoethylphosphonic acid; Ultra-oligotrophic
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Funding
- Japan Society for the Promotion of Sciences (JSPS) [15H05533, 16H02935]
- Grants-in-Aid for Scientific Research [15H05533, 16H02935] Funding Source: KAKEN
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Particulate organic phosphorus (P) compounds were examined in ultraoligotrophic Lake Saiko, Japan. A cartridge filter was used to collect sufficient amount of suspended particles for analysis by a two-dimensional NMR (H-1-P-31 heteronuclear multiple bond correlation). 2-Aminoethylphosphonic acid (2-AEP), a phosphonate, was detected in suspended particles in Lake Saiko. The identity of the phosphonate was confirmed by comparison with a commercially available compound. Because 2-AEP is bioavailable, microorganisms can store and use this compound under extremely P-limited conditions. This is the first study to detect 2-AEP in an ultra-oligotrophic environment.
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