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A positive reaction of Schaeffer's test, which uses the reaction of aniline and nitric acid on the surface of the mushroom, is indicated by an orange to red color; it is characteristic of species in the section Flavescentes. The compounds responsible for the reaction were named schaefferal A and B to honor Schäffer. [3]
Different strains of Trichoderma control almost every pathogenic fungus for which control has been sought. However, most Trichoderma strains are more efficient for control of some pathogens than others, and may be largely ineffective against some fungi. Trichoderma spp. continue to be a major source of contamination and crop loss for mushroom ...
Ustilago esculenta is a species of fungus in the Ustilaginaceae, the same genus as those that cause corn smut, loose smut of barley, false loose smut, covered smut of barley, loose smut of oats, and other grass diseases.
Some mushrooms are too young or too old to produce spores. Mushrooms collected at high elevations will typically not produce a spore print at lower elevations. [2] Sometimes, the colour can vary depending on the thickness of the spore print. In the genus Lactarius, for example, thin deposits are usually white, while thick deposits are cream to
A. mellea is the type species of the genus Armillaria. Armillaria is a genus of fungi commonly known as honey mushrooms. First treated by Elias Magnus Fries in 1821, and later assigned generic rank by Friedrich Staude in 1857, [1] Armillaria is classified in the family Physalacriaceae of the Agaricales, the gilled mushrooms. [2]
Agaricus is a genus of mushroom-forming fungi containing both edible and poisonous species, with over 400 members worldwide [2] [3] and possibly again as many disputed or newly-discovered species. The genus includes the common ("button") mushroom (Agaricus bisporus) and the field mushroom (A. campestris), the dominant cultivated mushrooms of ...
Russula is a very large genus composed of around 750 worldwide species of ectomycorrhizal mushrooms. They are typically common, fairly large, and brightly colored – making them one of the most recognizable genera among mycologists and mushroom collectors.
The main identifying feature is an immediate bright yellow colouration on cutting through the base of the stem, or scraping the flesh; later, the affected area fades to a dull brown. Numerous edible Agaricus species, such as A. augustus , A. arvensis and A. silvicola , turn yellow to a greater or lesser extent, but they do not display such an ...