Skip to Content
Merck
  • Antagonistic and synergistic effects of light irradiation on the effects of copper on Chlamydomonas reinhardtii.

Antagonistic and synergistic effects of light irradiation on the effects of copper on Chlamydomonas reinhardtii.

Aquatic toxicology (Amsterdam, Netherlands) (2014-07-30)
Giulia Cheloni, Claudia Cosio, Vera I Slaveykova
ABSTRACT

The present study showed the important role of light intensity and spectral composition on Cu uptake and effects on green alga Chlamydomonas reinhardtii. High-intenisty light (HL) increased cellular Cu concentrations, but mitigated the Cu-induced decrease in chlorophyll fluorescence, oxidative stress and lipid peroxidation at high Cu concentrations, indicating that Cu and HL interact in an antagonistic manner. HL up-regulated the transcription of genes involved in the antioxidant response in C. reinhardtii and thus reduced the oxidative stress upon exposure to Cu and HL. Combined exposure to Cu and UVBR resulted in an increase of cellular Cu contents and caused severe oxidative damage to the cells. The observed effects were higher than the sum of the effects corresponding to exposure to UVBR or Cu alone suggesting a synergistic interaction.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Copper, foil, thickness 0.025 mm, 99.98% trace metals basis
Pricing and availability is not currently available.
Sigma-Aldrich
Copper, wire, diam. 1.0 mm, ≥99.9%
Pricing and availability is not currently available.
Sigma-Aldrich
Copper, wire, diam. 0.25 mm, 99.999% trace metals basis
Pricing and availability is not currently available.
Sigma-Aldrich
Copper, foil, thickness 0.5 mm, 99.98% trace metals basis
Pricing and availability is not currently available.
Sigma-Aldrich
Copper, wire, diam. 0.64 mm, 99.995% trace metals basis
Pricing and availability is not currently available.
Sigma-Aldrich
Copper, wire, diam. 2.0 mm, 99.999% trace metals basis
Pricing and availability is not currently available.
Sigma-Aldrich
Copper, powder, <75 μm, 99%
Pricing and availability is not currently available.
Sigma-Aldrich
Copper, foil, thickness 1.0 mm, 99.999% trace metals basis
Pricing and availability is not currently available.
Continuous cast copper (O), BCR®, certified reference material, rod
Pricing and availability is not currently available.
Sigma-Aldrich
Copper, beads, 2-8 mm, 99.9995% trace metals basis
Pricing and availability is not currently available.
Sigma-Aldrich
Copper, foil, ≥99.8% (complexometric)
Pricing and availability is not currently available.
Copper, wire reel, 5m, diameter 0.25mm, as drawn, 99.99+%
Pricing and availability is not currently available.
Copper, mesh, 100x100mm, nominal aperture 0.38mm, wire diameter 0.25mm, 40x40 wires/inch, open area 37%, plain weave mesh
Pricing and availability is not currently available.
Copper - O.F.H.C., foil, light tested, 100x100mm, thickness 0.010mm, hard, 99.95+%
Pricing and availability is not currently available.
Copper - O.F.H.C., rod, 1000mm, diameter 3.15mm, as drawn, 99.95+%
Pricing and availability is not currently available.
Copper - O.F.H.C., foil, 6mm disks, thickness 0.1mm, hard, 99.95+%
Pricing and availability is not currently available.
Copper, wire reel, 5m, diameter 0.025mm, as drawn, 99.99+%
Pricing and availability is not currently available.
Copper - O.F.H.C., foil, light tested, 25x25mm, thickness 0.006mm, hard, 99.95+%
Pricing and availability is not currently available.
Copper - O.F.H.C., foil, light tested, 25x25mm, thickness 0.010mm, hard, 99.95+%
Pricing and availability is not currently available.
Copper - O.F.H.C., rod, 100mm, diameter 6.35mm, as drawn, 99.95+%
Pricing and availability is not currently available.
Copper - O.F.H.C., rod, 500mm, diameter 50.0mm, as drawn, 99.95+%
Pricing and availability is not currently available.
Copper - O.F.H.C., foil, light tested, 50x50mm, thickness 0.05mm, hard, 99.95+%
Pricing and availability is not currently available.
Copper - O.F.H.C., tube, 1000mm, outside diameter 3.2mm, inside diameter 2.4mm, wall thickness 0.4mm, 99.95+%
Pricing and availability is not currently available.
Copper - O.F.H.C., tube, 100mm, outside diameter 0.38mm, inside diameter 0.22mm, wall thickness 0.08mm, 99.95+%
Pricing and availability is not currently available.
Copper - O.F.H.C., foil, light tested, 100x100mm, thickness 0.075mm, half hard, 99.95+%
Pricing and availability is not currently available.
Copper - O.F.H.C., foil, 6mm disks, thickness 0.7mm, half hard, 99.95+%
Pricing and availability is not currently available.
Copper - O.F.H.C., rod, 500mm, diameter 9.5mm, as drawn, 99.95+%
Pricing and availability is not currently available.
Copper - O.F.H.C., tube, 100mm, outside diameter 10mm, inside diameter 8mm, wall thickness 1.0mm, 99.95+%
Pricing and availability is not currently available.
Copper - O.F.H.C., sheet, 50x50mm, thickness 4.76mm, 99.95+%
Pricing and availability is not currently available.
Copper - O.F.H.C., rod, 100mm, diameter 25.4mm, as drawn, 99.99+%
Pricing and availability is not currently available.