These slides review mycotoxins, metals and the impart of these toxins on glutathione. Much of the information comes from the article Deficient Glutathione in the Pathophysiology of Mycotoxin-Related Illness – online. The slides contain some information on Gliotoxin, which was not included in the article.
There are also references showing that pollen granules stimulate oxidation stress directly due to NADPH oxidase found in in the covering of pollen granules.The article explains how free radicals stimulated by the oxidase in pollen granules goes on to cause the symptoms of allergy.