{"id":256,"date":"2022-09-27T14:15:33","date_gmt":"2022-09-27T12:15:33","guid":{"rendered":"https:\/\/campus.univ-lyon1.fr\/champignons\/?page_id=256"},"modified":"2023-12-13T18:18:39","modified_gmt":"2023-12-13T17:18:39","slug":"amanita-virosa","status":"publish","type":"page","link":"https:\/\/campus.univ-lyon1.fr\/champignons\/base-de-donnees\/amanita-virosa\/","title":{"rendered":"Amanita virosa"},"content":{"rendered":"\n

Amanite vireuse<\/em><\/strong><\/h1>\n\n\n\n
T\u00e9l\u00e9charger<\/a><\/div>\n\n\n\n
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Ordre <\/strong>: Agaricales<\/a><\/p>\n<\/div>\n\n\n\n

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Genre <\/strong>: Amanita<\/a><\/p>\n<\/div>\n\n\n\n

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Spor\u00e9e <\/strong>: Blanche<\/p>\n<\/div>\n<\/div>\n\n\n

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Chapeau<\/p>\n<\/div><\/div>\n\n\n\n

De 5 \u00e0 10 cm de diam\u00e8tre. Blanc \u00e0 cr\u00e8me p\u00e2le, convexe, conique puis campanul\u00e9. Ne s’\u00e9talant jamais compl\u00e8tement. Tr\u00e8s souvent dissym\u00e9trique. Marge non stri\u00e9e.<\/p>\n\n\n\n

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Chair<\/p>\n<\/div><\/div>\n\n\n\n

Blanche. Odeur faible puis d\u00e9sagr\u00e9able. Ne pas go\u00fbter.<\/p>\n\n\n\n

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Hym\u00e9nophore<\/p>\n<\/div><\/div>\n\n\n\n

Lames blanches, libres, serr\u00e9es.<\/p>\n\n\n\n

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Pied<\/p>\n<\/div><\/div>\n\n\n\n

Blanc, surface laineuse et fibrilleuse sous l’anneau.<\/p>\n\n\n\n

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Anneau<\/p>\n<\/div><\/div>\n\n\n\n

Blanc. Membraneux, souvent oblique, vite d\u00e9chir\u00e9. Descendant (sup\u00e8re).<\/p>\n\n\n\n

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Volve<\/p>\n<\/div><\/div>\n\n\n\n

Blanche, en sac, tr\u00e8s fragile.<\/p>\n\n\n\n

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Habitat<\/p>\n<\/div><\/div>\n\n\n\n

Sous conif\u00e8res, sur terrain acide et humide en montagne.<\/p>\n<\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n

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Comestibilit\u00e9<\/p>\n<\/div><\/div>\n\n\n\n

Mortel.<\/p>\n<\/div><\/div>\n<\/div>\n\n\n\n

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P\u00e9riode de cueillette<\/p>\n<\/div><\/div>\n\n\n\n

Du mois de Juin jusqu’\u00e0 Novembre.
Et\u00e9 et automne.<\/p>\n<\/div><\/div>\n<\/div>\n\n\n\n

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Remarque<\/p>\n<\/div><\/div>\n\n\n\n

R\u00e9action orange \u00e0 la potasse. Il faut avoir une vigilance constante lors du ramassage de champignon blancs dans les bois.
Dans tous les cas o\u00f9 la totalit\u00e9 du pied n’a pas \u00e9t\u00e9 ramass\u00e9, il est difficile, voire impossible de conclure, car le voile partiel et g\u00e9n\u00e9ral est caract\u00e9ristique mais fragile.
La toxicit\u00e9 des champignons \u00e0 amanitine est suffisante pour \u00e9liminer du panier tous les champignons en contact avec ceux-ci.<\/p>\n<\/div><\/div>\n<\/div>\n<\/div>\n\n\n\n

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Syndrome associ\u00e9<\/p>\n<\/div><\/div>\n\n\n\n

Phallo\u00efdien : <\/strong>six \u00e0 vingt quatre heures apr\u00e8s l’ingestion apparaissent vertiges et g\u00eanes respiratoires. Puis gastro-ent\u00e9rite aigu\u00eb, r\u00e9mission apparente et atteinte h\u00e9patique avec cytolyse.<\/p>\n<\/div><\/div>\n<\/div>\n\n\n\n

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Conduite \u00e0 tenir<\/p>\n<\/div><\/div>\n\n\n\n

R\u00e9hydratation, lavage gastrique, respect des diarrh\u00e9es, diur\u00e8se aqueuse forc\u00e9e, p\u00e9nicilline G, N ac\u00e9tyl cyst\u00e9ine (pr\u00e9curseur du glutathion) et \u00e9puration extra r\u00e9nale si h\u00e9patite grave. Suivi des enzymes h\u00e9patiques. Dosage des amanitines et des phallotoxines possible par techniques radio-immunologiques.<\/p>\n<\/div><\/div>\n<\/div>\n<\/div>\n\n\n\n

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Confusions avec<\/span> <\/strong>risques<\/h2>\n\n\n

[rev_slider alias=\u00a0\u00bbamanita-virosa-avec\u00a0\u00bb]<\/p>\n\n\n\n

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Confusions sans<\/span> <\/strong>risques<\/h2>\n\n\n

[rev_slider alias=\u00a0\u00bbamanita-virosa-sans\u00a0\u00bb]<\/p>\n\n\n\n

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