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Science 17 September 1971:
Vol. 173. no. 4002, pp. 1146 - 1148
DOI: 10.1126/science.173.4002.1146
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Articles

DDT: Disrupted Osmoregulatory Events in the Intestine of the Eel Anguilla rostrata Adapted to Seawater

Ralph H. Janicki 1 and William B. Kinter 2

1 Mount Desert Island Biological Laboratory, Salisbury Cove, Maine 04672
2 Department of Physiology, State University of New York Upstate Medical Center, Syracuse 13210

The drinking of seawater and absorption of water along with sodium across the intestinal epithelium are well-known osmoregulatory events in marine teleosts. The insecticide DDT impairs fluid absorption in intestinal sacs from eels adapted to seawater. Furthermore, this functional impairment has an enzymatic basis; DDT also inhibits the (Na+ and K+) activated, Mg2+-dependent adenosine triphosphatase in homogenates of the intestinal mucosa. Thus, the extreme sensitivity of teleosts to organochlorine pollutants may involve the disruption of osmoregulatory transport mechanisms.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
DDT: Inhibition of Sodium Chloride Tolerance by the Blue-Green Alga Anacystis nidulans.
J. C. Battertc, G. M. Bous, and F. Matsumur (1972)
Science 176, 1141-1143
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Science. ISSN 0036-8075 (print), 1095-9203 (online)