نتایج جستجو برای: agaricaceae
تعداد نتایج: 89 فیلتر نتایج به سال:
The circumscription of the family Agaricaceae, its genera and their characters are investigated. Analyses of the ITS and LSU sequence data, separately and in combination result in exclusions and reorganization. Notholepiota areolata, a secotioid species from New Zealand, Cystoagaricus with brown, irregular-knobby spores, and Leucopholiota with gelatinized hymenophoral trama and amyloid spores, ...
Antioxidant status and selenium accumulation by 18 macromycetes species of the Mountainous Crimea was investigated. Total antioxidant activity 5 families’ representatives composed ranges 23.9 - 43.3 mg GAE/g d.w. for Boletaceae, 13.0-25.0 Russulaceae, 13.5-20.9 Tricholomotaceae, 13.8-38.0 Agaricaceae. Selenium levels reached 423-3352 µg/kg (Boletaceae), 236-1076 (Russulaceae), 664-1213 d.w (Tri...
Phylogenetic analyses based on nLSU and ITS sequence data indicate that the sequestrate genus Gigasperma is polyphyletic. Gigasperma cryptica, which is known only from New Zealand, has affinities with the Cortinariaceae whereas G. americanum and two additional undescribed taxa from western North America are derived from Lepiota within the Agaricaceae. The three North American taxa appear to be ...
Two new steroid derivatives, (22E,24R)-3alpha-ureido-ergosta-4,6,8(14),22-tetraene (1) and (22E,24R)-5alpha,8alpha-epidioxyergosta-6,9,22-triene-3beta-ol 3-O-beta-D-glucopyranoside (2) were isolated from the fruit bodies of Chlorophyllum molybdites (Agaricaceae). The structures were established by spectroscopic and chemical methods. These compounds exhibited cytotoxicity against Kato III cells.
The position and composition of Macrolepiota within the Agaricaceae and its phylogenetic relationships with other members of the family were investigated, using both molecular (ITS and LSU rDNA sequences) and morphological characters. The molecular data separate the genus into two clades. The first clade comprises M. procera, M. mastoidea, M. clelandii and allies and is a sister group of Leucoa...
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