期刊
WATER AIR AND SOIL POLLUTION
卷 132, 期 1-2, 页码 61-73出版社
KLUWER ACADEMIC PUBL
DOI: 10.1023/A:1012004607313
关键词
cell shape; copper; Euglena gracilis; lead; motility; nickel; pentachlorophenol; photosynthesis; zinc
Euglena gracilis was exposed for 24 hr to concentrations of copper, nickel, lead and zinc ranging from 0.1 to 2.0 mg L-1 and to pentachlorophenol ranging from 0.1 to 10.0 mg L-1. Photosynthetic efficiency (PE) was inhibited by increasing concentrations of the heavy metals. Nickel was found to be the least toxic of the metals to E. gracilis, while the other three metals exhibited similar levels of toxicity. Treatment with pentachlorophenol caused unusual responses of the photosynthetic apparatus probably due to the especially high toxicity of this substance. Both cell shape and motility turned out to be insensitive physiological parameters for the toxicity testing of the substances studied.
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