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不同浓度的Hg对三角褐指藻的生长以及累积、排出203Hg的影响
肖余生1, 王永元1, 滕文法1
中国科学院海洋研究所
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THE EFFECTS OF MERCURY ON THE GROWTH OF Phaeodactylum tricornutun AND THE ACCUMULATION AND ELIMINATION OF MERCURY BY THE DIATOM
Abstract:
The effects of mercury in different concentrations on the growth of a diatom, Phaeodactylum tricornutun, and the accumulation and elimination of mercury by the diatom have been studied using 203HgCl2 as a radioactive tracer. When there was 0.0182±0.0061ppm mercury in the sea water, the diatoms grew normally, and their ability to accumulate mercury was great with a concentration factor of 18790. When, however, the concentration of mercury was≥0.0272±0.0092 ppm, the diatoms were damaged, and some of them died with a concentration factor of 7209. The variations of growth and accumulation between normal and damaged diatoms are also discussed.
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