Xi Wang wrote:
Well, I was hoping to use it as an agent with which to control fungi.
I've heard that it works, but fungi need oxygen, so I'm not sure how it
can be effective.....


I don't officially know anything about it, but I do know that plants
have very tough cell walls. Fungi, as a rule, do not, as far as I know.
Hence, the hydrogen peroxide may be able to penetrate the fungal cells
more effectively.

The 'toxic' mechanism of H202 has very little to do with more oxygen.
At least in the way you think. It has everything to do with oxygen
radicals - charged derivatives of H2O2 that are very reactive with most
biological molecules. Including DNA. Oxygen radicals are one of the
most potent things that damage DNA. An excess of oxygen radicals will
modify proteins and DNA to the point where the cell can no longer
survive. Obviously a single celled organism is more prone than a
multicelled organism - it gets whacked from all sides, whereas a
multicelled organism has layers of cells, only the outer ones are affected.

I bet most of your 'slime' and pathogenic fungi are single celled fungi.

Rob


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