Search results for "Amanita"
showing 4 items of 14 documents
Do differences in chemical composition of stem and cap of Amanita muscaria fruiting bodies correlate with topsoil type?
2014
Fly agaric (Amanita muscaria) was investigated using a 1H NMR-based metabolomics approach. The caps and stems were studied separately, revealing different metabolic compositions. Additionally, multivariate data analyses of the fungal basidiomata and the type of soil were performed. Compared to the stems, A. muscaria caps exhibited higher concentrations of isoleucine, leucine, valine, alanine, aspartate, asparagine, threonine, lipids (mainly free fatty acids), choline, glycerophosphocholine (GPC), acetate, adenosine, uridine, 4-aminobutyrate, 6-hydroxynicotinate, quinolinate, UDP-carbohydrate and glycerol. Conversely, they exhibited lower concentrations of formate, fumarate, trehalose, α- an…
Bioactive alkaloids of hallucinogenic mushrooms
2015
The aim of our chapter is to review recent developments in a group of medicinally important natural products–alkaloids, with reference to the structure–activity studies in respect of certain diseases. Alkaloids covered by our review come from mushrooms called “hallucinogenic.” Hallucinogenic compounds have been chemically identified in mushrooms belonging to various genera, e.g., Agrocybe, Amanita, Conocybe, Galerina, Gymnopilus, Hypholoma, Inocybe, Panaeolus, Psilocybe, Pholiotina, Pluteus, and Weraroa [J.W. Allen, Ethnomycol. J. Sacred Mushroom Stud. 9 (2012) 130–175]. One of the largest classes of alkaloids is indole alkaloids. Indoles are probably the most widely distributed heterocycli…
Ferdinanda Erdmaņa Štolla sēņu mulāža
2020
Latvijas Universitātes Muzeja Botānikas un mikoloģijas kolekcijās glabājas unikāls eksponāts – sēņu mulāža, kas piederējusi Baltijas dabaspētniekam F. E. Štollam (1874 – 1966) un tikusi izmantota izglītības procesā. Iespējams, ka tā ir vienīgā Latvijā saglabājusies vēsturiskā sēņu mulāža.
Muchomor czerwony (Amanita muscaria) jako obiecujące źródło ergosterolu
2012
Ergosterol (prowitamina D) jest jednym z głównych składników błon komórkowych grzybów. Ma on obiecujące właściwości immunostymulujące i przeciwrakowe. Muchomor czerwony stanowi bogate źródło ergosterolu, który po ekstrakcji n-heksanem lub octanem etylu łatwo jest otrzymać w formie krystalicznej. Fly agaric was extd. with n-hexane or EtOH optionally under microwave aid to recover ergosta-5,7,22-trien-3β- ol and other steroids. The highest yield was achieved by extn. of the gills, EtOAc was more efficient than n-hexane as a solvent. Ergosterol (ergosta-5,7,22-trien-3β-ol) jest biologicznym prekursorem (prowitaminą) witaminy D2. Jest to główny steryd błon komórkowych grzybów. Ponieważ rzadko w…