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2000•Unpublished venueOpen access

Copper toxicity and extracellular release in Selenastrum capricornutum

Michael Darling

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Abstract

Copper toxicity was investigated using the green alga, Selenastrum capricornutum. Two major areas were investigated: the forms of copper which are toxic to growth of the alga and factors that can change the concentration of free copper, Cu2+(aq), in the growth medium during the logarithmic growth of the organism. This research has shown that S. capricornutum is sensitive to the free Copper ion, Cu2+(aq), irrespective of the total copper concentration.

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Copper toxicity was investigated using the green alga, Selenastrum capricornutum. Two major areas were investigated: the forms of copper which are toxic to growth of the alga and factors that can change the concentration of free copper, Cu2+(aq), in the growth medium during the logarithmic growth of the organism. This research has shown that S. capricornutum is sensitive to the free Copper ion, Cu2+(aq), irrespective of the total copper concentration.

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Available abstract

Copper toxicity was investigated using the green alga, Selenastrum capricornutum. Two major areas were investigated: the forms of copper which are toxic to growth of the alga and factors that can change the concentration of free copper, Cu2+(aq), in the growth medium during the logarithmic growth of the organism. This research has shown that S. capricornutum is sensitive to the free Copper ion, Cu2+(aq), irrespective of the total copper concentration.

Key concepts: Selenastrum, Copper, Toxicity, Copper toxicity, Chlorophyceae, Chlorophyta, Phytotoxicity, Environmental chemistry

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