Copper toxicity to Skeletonema costatum (Bacillariophyceae)

Journal Article · Wed Mar 01 04:00:00 EST 1978 · J. Phycol.; (United States)

DOI:https://doi.org/10.1111/j.1529-8817.1978.tb00629.x· OSTI ID:6817885

Morel, N M.L. ^[1]; Rueter, J G; Morel, F M.M.

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1. New England Aquarium, Boston

Copper toxicity to Skeletonema costatum (Grev.) Cleve has been studied in batch cultures of chemically defined culture media. The alga is relatively insensitive to cupric ion activity, demonstrating no effect on growth up to (Cu/sup 2 +/) = 10/sup -8/./sup 5/M. Cultures inoculated from stationary phase stocks exhibit a prolongation of the lag phase with increasing copper concentrations near and above the point of precipitation of the copper. The toxicity of copper is a function of the silicic acid concentration in the medium. This effect is observed in a range of Si(OH)/sub 4/ concentrations (10/sup -5/ M to 10/sup -4/ M) above known values for the saturation of silicon uptake kinetics, thus suggesting an influence of copper on silicate metabolism.

• OSTI ID: 6817885
• Journal Information: J. Phycol.; (United States), Journal Name: J. Phycol.; (United States) Vol. 14:1; ISSN JPYLA
• Country of Publication: United States
• Language: English

Related Subjects

520200 -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
550700* -- Microbiology
59 BASIC BIOLOGICAL SCIENCES
ALGAE
BIOCHEMICAL REACTION KINETICS
BIOLOGICAL EFFECTS
BIOMASS
CELL CULTURES
COPPER
ELEMENTS
ENERGY SOURCES
GROWTH
KINETICS
METABOLISM
METALS
PLANTS
REACTION KINETICS
RENEWABLE ENERGY SOURCES
SEMIMETALS
SILICON
TOXICITY
TRANSITION ELEMENTS
UPTAKE