heavy metals & mushrooms

Rebecca Belling rebellin at vt.edu
Thu Oct 7 08:51:49 EST 1999


Hi paul...

I'd love to chat with you about your research sometime!!  I'm doing similar
work, with ectomycorrhizal fungi, and copper and zinc as the metals.  Perhaps
if you are interested in sharing ideas, we could exchange emails?

becky

Paul Sinclair Stewart wrote:

> I am doing research on using fungal mycelium for bioremediation.  I would
> like to contact anyone out there who is doing similar work.
>
> In my research, I have found that not only will many mycelia grow at above
> 200 ppm heavy metals such as Cadmium, but the mycelial mat actually adsorbs
> the heavy metals very quickly (75% within 2 hours incubation).
>
>  From previous work with lobster shell, where waste water was cleansed of
> metals due to the activated chitosan in the shell, I assume that the chitin
> present in the hyphal cell walls is doing the same thing. I am suggesting
> that the majority of heavy metal "uptake" is actually a non-metabolic
> physical action of the cell wall, and would work just as well with
> non-living mycelial tissue, washed in NaOH to activate the chitin.
>
> Any comments?
> ********************************************************************
> Paul S. Stewart  c/o ABIOGEN ENVIRONMENTAL SERVICES
> Marshfield Manse, RR #3 Charlottetown,
> Prince Edward Island, CANADA   C1A 7J7
> Tel: (902) 566-4078     email:  abiogen at isn.net
> "If you're not part of the solution, you're part of the precipitate"
> *********************************************************************







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