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Science 12 September 1980:
Vol. 209. no. 4462, pp. 1245 - 1247
DOI: 10.1126/science.209.4462.1245
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Articles

2-Aminoethylphosphonic Acid Metabolism During Embryonic Development of the Planorbid Snail Helisoma

MICHAEL V. MICELI 1, THOMAS O. HENDERSON 1, and TERRELL C. MYERS 1

1 Department of Biological Chemistry, University of Illinois at the Medical Center, Chicago 60612

In freshly laid egg masses of Helisoma sp., more than 95 percent of the phosphorus is found in alkylphosphonic acids, as determined by phosphorus-31 nuclear magnetic resonance spectroscopy. These compounds are metabolized during embryonic development, as shown by differential acid hydrolysis and experiments with phosphorus-33-labeled phosphoric acid. Further, nuclear magnetic resonance spectroscopy indicates phosphonic acid involvement in related snail families, including the schistosomal vector Biomphalaria glabrata.

Submitted on February 8, 1980
Revised on May 30, 1980

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Science. ISSN 0036-8075 (print), 1095-9203 (online)