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Science 10 March 1978:
Vol. 199. no. 4333, pp. 1068 - 1070
DOI: 10.1126/science.415361
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Articles

Science, Vol 199, Issue 4333, 1068-1070
Copyright © 1978 by American Association for the Advancement of Science

articles

Anilines: selective toxicity to blue-green algae

J Batterton, K Winters, and C Van Baalen

The blue-green alga Agmenellum quadruplicatum (strain PR6) was very sensitive to aniline and p-toluidine (potential environmental toxicants) in an algal lawn assay (the growth of the algal lawn was inhibited with as little as 1 microgram of p-toluidine per disk). Assays with seven other species of blue-green algae showed that they had varying sensitivities ranging from 1 to 100 micrograms of p-toluidine. Under comparable conditions, 0.5 milligram or more of p-toluidine was needed to inhibit a green alga, a diatom, or two species of bacteria. p-Toluidine had no immediate effect on the photosynthesis or respiration of A. quadruplicatum, although growth was arrested and viability declined.




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