Effects of aquatic pollution by a non-ionogenic surfactant on the marine diatom Thalassiosira pseudonana (Article);
Biology Bulletin;
Volume 23, Issue 1, January 1996, Pages 76-79;
a Marine Science Center, State University of New York, United States ;
b Laboratory of Physico-Chemistry of Biomembranes; Biological Faculty, Moscow State University, Vorob'evy Gory, Moscow, 119991, Russian Federation ;
b Laboratory of Physico-Chemistry of Biomembranes; Biological Faculty, Moscow State University, Vorob'evy Gory, Moscow, 119991, Russian Federation ;
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Abstract
The effects of the non-ionogenic surfactant, Triton X-100 (TX), on the growth of cultured centric diatom Thalassiosira pseudonana were studied. In the presence of 0.1 mg/l TX the cell density in the culture was markedly lower than in the control culture. In the presence of 1 mg/l TX the decrease in cell density exceeded 50%. The decrease in the specific growth rate was about 10% in the presence of 0.1 mg/l TX and about 40% in the presence of 1 mg/l TX (over a period of seven days). The diatom sensitivity to TX was higher than that of some red and green algae and chrysophytes, as well as that of starfish spermatozoa and plant seedlings to TX or similar surfactants. These data reveal some more aspects of the ecological danger of aquatic pollution by non-ionogenic surfactants. © 1996 MAEe Cyrillic signK HayÎșa/Interperiodica Publishing.
ISSN: 10623590;CODEN: BRASE;Source Type: Journal;Original language: English;
Document Type: Article;
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