Polyphenol oxidase (PPO) activity varied in differentiation from hyphae to rhizomorph and croute in A. mellea. In undifferentiated hyphae there was not any PPO activity, while croute showed the highest activity. Electrophoresis in the presence of SDS allows the detection of intensive enzyme forms of PPO, and can also convert slower migrating enzyme forms to faster ones. Some fluorescent co...

Slow and unreliable infection in the greenhouse has been a barrier to research on Armillaria root disease. The existing infection assay takes 7-18 months for detectable infection, during which time the inoculum often dies, resulting in unequal challenge among plants. Because symptom expression and mortality are rare, presence or absence of infection, determined by culturing, is the only datum d...

Studying on Agaricales fungi collected from different parts of Mashhad and its suburbs (Khorasan province), 23 species were identificed. Among these, 18 species, namely, Lepiota cristata, Tricholoma sulphureum, Flammulina velutipes, Armillaria mellea, Pleurotus ostratus, Conocybe lactea, Agrocybe cylindracea, Mycena galopus, Psilocybe crobulus, Hypholoma   fasciculare, Agaricus bitorquis, Pholi...

Wild growing mushrooms are a rich source of novel proteins with unique features. We have isolated and characterized trypsin inhibitors from two edible mushrooms, the honey fungus (Armillaria mellea) and the parasol mushroom (Macrolepiota procera), and from the poisonous death cap (Amanita phalloides). The trypsin inhibitors isolated: armespin, macrospin and amphaspin, have similar molecular mas...

We determined the elemental profile of 16 edible mushroom species from the Făget Forest, near Cluj-Napoca, and of 12 species from the Apuseni Mountains. Oneway ANOVA showed no difference in the elemental content of mushrooms when the two regions were compared. Some species accumulated high amounts of trace elements, i.e. Boletus edulis (Ag, S, Zn), Macrolepiota procera (Cu), Lactarius volemus (...

six fluorescent compounds were isolated and characterized in rhizomorph of a. mellea and were presented first as: f , f , f , mf , mf and mf . these compounds differed by rf on chromatoplaque, max in uv spectra and ex, em and max in fluorescence spectra. their gc-ms analysis indicated that f has a phenolic moiety and the other five are the benzenic derivatives. f compound was more fluorescent r...