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IUR - International Union of Radioecology

Experimenting on radionuclides interaction with Chlamydomonas r.

To whom may be interested...

*Dr Jose Corisco* from the Nuclear andd Technological Institute (ITN) in Potugal, is issuing the follwing call for collaboration:

I´m looking forward to find people interested in finding consistent experimentally based answers about the role of the cell wall in the uptake/accumulation of radionuclides by microalgae. Authors Macfie and Welbourne (Arch. Environ.Contam.Toxicol. 39, 413-419. 2000) state the capacity of the Chlamydomonas cell wall to act as a barrier to the inward transport of metal ions Cd, Co, Cu and Ni. I'm interested in setting up an experiment using a wild typy strain of Chlamydomonas and a cell wall deficient mutant, in order to verify the uptake/loss profiles for both 134,137Cs and 85,90Sr. The objective is to define the "picture" where ion transport systems at the cell membrane level and cell wall barrier act together, leading to a whole radioecological/dosimetric reference model for microalgae. I have severall years of experience working with microalgae (Selenastrum, Chlamydomonas), and access to laboratory facilities for experimental radioecology, including gamma spectrometry and liquid scintillation systems. If possible, I kindly ask the spreading of this message to the radioecologists comunity.


Most sincerely
José Corisco (corisco@itn.pt)
IUR - International Union of Radioecology