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Old 22-10-2008, 01:23 PM
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Re: Fungi A to Z Alerts

Quote:
Originally Posted by NickCantle View Post
Interesting indeed J.P. Pegler and Spooner definitely know what they are talking about, and are both extremely experienced in the field. This leads me to confusion though, as most other sources will tell you about A. pantherina and how it is poisonous and possibly deadly. To name a few sources;



All of the above state that Pantherina is poisonous, some say it is possibly deadly, having the same symptoms as A. phalloides (though unlikely I would have thought.)

Thinking about it, the source you linked to there J.P must state it IS poisonous if it explains that it's psychactive- thus containing a toxin and being 'toxic'.

Nick
This is where it gets a bit difficult to percieve differences.

A.phalloides and A.pantherina are toxic and can be deadly (along with others).

The difference is in their type of activity, the central dogma is that it's all
in the dose (don't forget alchohol is a poison).

We seem to have toxins here that work in different ways.

A.panterina it would appear contains the same toxins as A.muscaria, (often it's not the actual chemicals in the substrate but their breakdown products having passed through the liver that are the problem) (not sure with these two) but anyway the chemicals are persistent, i.e. the effective toxins do not get further broken down in the body, but lucky for anyone who
mistakenly eats these the toxins are excreated via the kidneys when they get there, so the bad symtoms should (if survived) pass and the body is cleansed of the offending chemicals.
(repeat doses of such chemicals can have a detremental effect over time,
so could be described as chronic sympoms).

A.phalloides in comparison seems to be an acute toxin (one dose is enough), the difference seems to be that it's toxins cannot be excreated by the body (kidneys), instead it lodges in the kidneys and liver, (unlike the above species the recipient does not feel unwell), but it seems the chemicals contain and cycle what are known as free radicals (single electrons that are highly reactive in an unspecific manner), these in effect destroy kidney and liver material around them by the same effect as metal rusting (sounds an odd comparison but both are oxidative reactions).

Hope that hasn't created more confusion.

important bits A.pantherina (and associated) affect nervous system and could bring heart attack amongst other effects, persitent chemical but can be excreated. (like alchohol) soon induce sicknes .

A.phalloides, no immeadiate symtoms, cannot be excreated, brings kidney and liver function to a halt.

If in doubt do not eat.

Cheers J.P.
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