Tricholoma magnivelare | |
---|---|
![]() | |
Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Fungi |
Division: | Basidiomycota |
Class: | Agaricomycetes |
Order: | Agaricales |
Family: | Tricholomataceae |
Genus: | Tricholoma |
Species: | T. magnivelare |
Binomial name | |
Tricholoma magnivelare (Peck) Redhead (1984) | |
Synonyms [1] | |
Tricholoma magnivelare | |
---|---|
![]() | Gills on hymenium |
![]() | Cap is convex |
![]() ![]() | Hymenium is adnate or adnexed |
![]() | Stipe has a ring |
![]() | Spore print is white |
![]() | Ecology is mycorrhizal |
![]() | Edibility is choice |
Tricholoma magnivelare, commonly known as the matsutake, white matsutake, [2] ponderosa mushroom, pine mushroom, or American matsutake, [3] is a gilled mushroom found East of the Rocky Mountains in North America growing in coniferous woodland. These ectomycorrhizal fungi are typically edible species that exist in a symbiotic relationship with various species of pine, commonly jack pine. They belong to the genus Tricholoma , which includes the closely related East Asian songi or matsutake as well as the Western matsutake ( T. murrillianum ) and Meso-American matsutake ( T. mesoamericanum ).
Until recently, the name Tricholoma magnivelare described all matsutake mushrooms found in North America. Since the early 2000s, molecular data has indicated the presence of separate species in the prior group, with only those found in the Eastern United States and Canada retaining the name T. magnivelare. [4]
The cap ranges from 5–20 centimetres (2–7+7⁄8 in) in width, and is white with reddish-yellow or brown spots. The stalk is 4–15 cm (1+5⁄8–5+7⁄8 in) tall and 2–6 cm wide. The spores are white. [5]
The mycelium is thought to be parasitized by the plant Allotropa virgata , [6] which primarily feeds on matsutake. [7]
This mushroom is noted for its distinctive odour/flavour. The major compound identified from fresh sporocarps is the fragrant compound, methyl cinnamate. Also, alpha-pinene and bornyl acetate are present in trace amounts in uncrushed samples. Tissue disruption of the sporocarp produces large amounts of 1-octen-3-ol, a compound found in many mushrooms that has a typical mushroom-like odour. Both methyl cinnamate and 1-octen-3-ol have been shown to be potent banana slug (Ariolimax columbianus) antifeedants. Cultures of the secondary mycelium of T. magnivelare did not have any of the compounds found in the sporocarp. The major volatile component of mycelial cultures is 3,5-dichloro-4-methoxybenzaldehyde. 3,5-Dichloro-4-methoxybenzyl alcohol and hexanal were identified as minor components from these cultures. These chlorinated compounds inhibit fungal metabolism: fungal cell wall growth by chitin synthase and melanin biosynthesis. These compounds may keep other fungi from taking over the tree roots that T. magnivelare colonizes. [8]
Similar species in the genus include Tricholoma apium , [6] T. caligatum , T. focale, and T. vernaticum . [5] Other similar species include Catathelasma imperiale , C. ventricosum, Russula brevipes , and the poisonous Amanita smithiana . [6]
While tough, [5] the mushroom can be eaten both raw and cooked [9] and is considered choice. [10] In recent years, globalization and wider social acceptability of mushroom hunting has made collection of pine mushrooms widely popular in North America. However, serious poisonings have resulted from confusion of this mushroom with poisonous white Amanita species. [11]
Local mushroom hunters sell their harvest daily to local depots, which rush them to airports. The mushrooms are then shipped fresh by air to Asia where demand is high and prices are at a premium. [12]
Amanita phalloides, commonly known as the death cap, is a deadly poisonous basidiomycete fungus and mushroom, one of many in the genus Amanita. Originating in Europe, but later introduced to other parts of the world since the late twentieth century, A. phalloides forms ectomycorrhizas with various broadleaved trees. In some cases, the death cap has been introduced to new regions with the cultivation of non-native species of oak, chestnut, and pine. The large fruiting bodies (mushrooms) appear in summer and autumn; the caps are generally greenish in colour with a white stipe and gills. The cap colour is variable, including white forms, and is thus not a reliable identifier.
The genus Amanita contains about 600 species of agarics, including some of the most toxic known mushrooms found worldwide, as well as some well-regarded edible species. The genus is responsible for approximately 95% of fatalities resulting from mushroom poisoning, with the death cap accounting for about 50% on its own. The most potent toxin present in these mushrooms is α-Amanitin.
Amanita pantherina, also known as the panther cap, false blusher, and the panther amanita due to its similarity to the true blusher, is a species of fungus found in Eurasia with poisonous and psychoactive properties.
Matsutake, Tricholoma matsutake, is a species of choice edible mycorrhizal mushroom that grows in Eurasia and North America. It is prized in Japanese cuisine for its distinct spicy-aromatic odor.
Mushroom poisoning is poisoning resulting from the ingestion of mushrooms that contain toxic substances. Symptoms can vary from slight gastrointestinal discomfort to death in about 10 days. Mushroom toxins are secondary metabolites produced by the fungus.
Tricholoma is a genus of fungus that contains many fairly fleshy white-spored gilled mushrooms which are found worldwide generally growing in woodlands. These are ectomycorrhizal fungi, existing in a symbiotic relationship with various species of coniferous or broad-leaved trees. The generic name derives from Ancient Greek: τριχο-, romanized: tricho-, lit. 'hair' and Ancient Greek: λῶμα, romanized: loma, lit. 'fringe, border' although only a few species have shaggy caps which fit this description.
Amanita citrina, commonly known as the false death cap or citron amanita, is a basidiomycotic mushroom, one of many in the genus Amanita. It grows in silicate soil in the summer and autumn months. It bears a pale yellow or sometimes white cap, with white stem, ring and volva. It is an inedible mushroom due to its toxicity, but is more pertinently often confused for the lethal death cap.
Allotropa virgata is in the family Ericaceae and is the only species of the genus Allotropa. It is a perennial plant that gets its common names from the distinct white and red or maroon stripes along its erect peduncle. A. virgata are nongreen as they lack chlorophyll, instead obtaining nutrition from neighboring green plants through a fungal intermediate.
Clitocybe nebularis or Lepista nebularis, commonly known as the clouded agaric, cloudy clitocybe, or cloud funnel, is an abundant gilled fungus which appears both in conifer-dominated forests and broad-leaved woodland in Europe and North America. Appearing in Britain from mid to late autumn, it is edible, but may cause gastrointestinal issues.
1-Octen-3-ol, octenol for short and also known as mushroom alcohol, is a chemical that attracts biting insects such as mosquitoes. It is contained in human breath and sweat, and it is believed that insect repellent DEET works by blocking the insects' octenol odorant receptors.
Hydnellum peckii is a fungus in the genus Hydnellum of the family Bankeraceae. It is a hydnoid species, producing spores on the surface of vertical spines or tooth-like projections that hang from the undersurface of the fruit bodies. It is found in North America, Europe, and was recently discovered in Iran (2008) and Korea (2010). Hydnellum peckii is a mycorrhizal species, and forms mutually beneficial relationships with a variety of coniferous trees, growing on the ground singly, scattered, or in fused masses.
Clitopilus prunulus, commonly known as the miller or the sweetbread mushroom, is an edible pink-spored basidiomycete mushroom found in grasslands in Europe and North America. Growing solitary to gregarious in open areas of conifer/hardwood forests; common under Bishop pine along the coast north of San Francisco; fruiting shortly after the fall rains. It has a grey to white cap and decurrent gills.
Amanita smithiana, also known as Smith's amanita, is a species of agaric found on soil in coniferous and broadleaved woodland in the Pacific Northwest of North America. It fruits in August and September.
Tricholoma terreum, commonly known as the grey knight or dirty tricholoma, is a grey-capped mushroom of the large genus Tricholoma. It is found in coniferous woodlands in Europe, and has also been encountered under introduced pine trees in Australia and New Zealand. It is regarded as edible. A 2014 article speculated that it may be poisonous, but Sitta et al. in 2016 published in the same journal a counter article demonstrating the unfounded nature of such speculation.
Tricholoma saponaceum, also known as the soap-scented toadstool, soapy tricholoma, soapy knight or soap tricholoma is an inedible mushroom found in woodlands in Europe and North America.
Laccaria amethysteo-occidentalis is a mushroom found under conifers, usually pine, growing alone, scattered or gregariously in western North America.
Tricholoma caligatum is a mushroom of the agaric genus Tricholoma. It is a large species with a distinct sheathing ring on the stem, found in mycorrhizal association with various trees throughout the Mediterranean. It is sometimes referred to as the European Matsutake, though it is certainly gastronomically inferior to the true Matsutake, a related species highly prized in Japan.
Tricholoma inamoenum is a mushroom of the agaric genus Tricholoma found through the Northern Hemisphere, particularly under conifers. It is poisonous, and is characterized by an unpleasant odor resembling coal gas or tar. • Analysis of the volatile compounds emanating from fresh sporocarps using solid phase microextraction (SPME) showed the odor compounds responsible for the coal tar odor of this mushroom are 1-octen-3-ol and indole.
Inocybe rimosa, commonly known as straw-colored fiber head, is a poisonous mushroom native to Europe. Its toxic ingredient is muscarine, discovered during the 1930s. Serious poisoning can result from consuming any quantity of the mushroom.
Tricholoma murrillianum is a species of mushroom-forming fungus found in North America also known as the ponderosa mushroom, pine mushroom, and Western matsutake. It produces a choice edible mushroom but can be confused with the poisonous Amanita smithiana.