Pleurotus citrinopileatus

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Pleurotus citrinopileatus
Pleurotus citrinopileatus at Chatama's home.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Agaricales
Family: Pleurotaceae
Genus: Pleurotus
Species:
P. citrinopileatus
Binomial name
Pleurotus citrinopileatus
Singer (1943) [1]
Synonyms
  • Pleurotus cornucopiae subsp. citrinopileatus(Singer) O.Hilber (1993)
  • Pleurotus cornucopiae var. citrinopileatus(Singer) Ohira (1987)
Pleurotus citrinopileatus
Information icon.svg
Gills icon.png Gills on hymenium
Flat cap icon.svgDepressed cap icon.svg Cap is flat or depressed
Decurrent gills icon2.svg Hymenium is decurrent
Bare stipe icon.svg Stipe is bare
Transparent spore print icon.svg
Spore print is pink
Saprotrophic fungus.svgEcology is saprotrophic
Mycomorphbox Choice.pngEdibility is choice

Pleurotus citrinopileatus, the golden oyster mushroom (tamogitake in Japanese), is an edible gilled fungus. Native to eastern Russia, northern China, and Japan, the golden oyster mushroom is very closely related to P. cornucopiae of Europe, with some authors considering them to be at the rank of subspecies. [2] In far eastern Russia, P. citrinopileatus, they are called iI'mak, is one of the most popular wild edible mushrooms. [3]

Contents

Description

The fruiting bodies of P. citrinopileatus grow in clusters of bright yellow to golden brown caps with a velvety, dry surface texture. Caps range from 20–65 millimetres (342+12 inches) in diameter. The flesh is thin and white, with a mild taste and without a strong smell. Stems are cylindrical, white in color, often curved or bent, and about 20–50 mm (34–2 in) long and 2–8 mm (116516 in) in diameter. The gills are white, closely spaced, and run down the stem. The spores of the golden oyster mushroom are cylindrical or elliptical in shape, smooth, hyaline, amyloid, and measure 6-9 by 2–3.5 micrometres. [2] [3]

Ecology

The golden oyster mushroom, like other species of oyster mushroom, is a wood-decay fungus. In the wild, P. citrinopileatus most commonly decays hardwoods such as elm. [2] [3] The first recorded observation of naturalized golden oysters in the United States occurred in 2012 on Mushroom Observer, perhaps a decade after the cultivation of the species began in North America, and they have been found growing on oak, elm, beech, and other hardwoods. Naturalized golden oysters have been found in many states including: Delaware, Illinois, Iowa, Maryland, Massachusetts, Michigan, Minnesota, New York, Ohio, Pennsylvania, and Wisconsin. Their vigorous range expansion is comparable to invasive species. In a 2018 population genomics study comparing naturalized wild isolates with commercial strains, two of the commercial isolates showed high similarity to all of the wild isolates, representing possible source strains of the wild populations. [4] The study also found highly similar wild isolates collected from geographically distant locations, in some cases over 800 miles apart (>1300 km). This is strong evidence to suggest that the same cultivated strain has been re-introduced many times over in various parts of the United States, as opposed to a single introduction event and subsequent spread.

Uses

Golden oyster mushrooms are cultivated commercially, usually on a medium of grain, straw, or sawdust. [5] Pleurotus species are some of the most commonly cultivated mushrooms, particularly in China, due to their ease of cultivation and their ability to convert 100 g of organic refuse into 50-70 g of fresh mushrooms. [6]

Chemistry

Pleurotus citrinopileatus mushrooms are a source of antioxidants. [7] Extracts from P. citrinopileatus have been studied for their antihyperglycemic properties, decreasing blood sugar levels in diabetic rats. [8] They have also been studied as a source of lipid-lowering drugs; [9] P. ostreatus , a related oyster mushroom, has been found to contain the cholesterol-lowering drug lovastatin. [10]

In one study, among 11 other commonly cultivated or foraged mushroom species, Pleurotus citrinopileatus contained the second highest amount of the antioxidant and amino acid ergothioneine at 3.94mg per gram of dry weight, and fourth highest in glutathione at 1.39mg per gram of dry weight. Both compounds had their highest concentrations in the pileus tissue. It had the highest amount of ergothioneine among the other saprotrophs within the group. [11]

See also

Related Research Articles

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<span class="mw-page-title-main">Edible mushroom</span> Edible fungi fruit bodies

Edible mushrooms are the fleshy fruit bodies of several species of macrofungi. Edibility may be defined by criteria including the absence of poisonous effects on humans and desirable taste and aroma. Edible mushrooms are consumed for their nutritional and culinary value. Mushrooms, especially dried shiitake, are sources of umami flavor.

<span class="mw-page-title-main">Secondary metabolite</span> Type of organic compound

Secondary metabolites, also called specialised metabolites, toxins, secondary products, or natural products, are organic compounds produced by any lifeform, e.g. bacteria, fungi, animals, or plants, which are not directly involved in the normal growth, development, or reproduction of the organism. Instead, they generally mediate ecological interactions, which may produce a selective advantage for the organism by increasing its survivability or fecundity. Specific secondary metabolites are often restricted to a narrow set of species within a phylogenetic group. Secondary metabolites often play an important role in plant defense against herbivory and other interspecies defenses. Humans use secondary metabolites as medicines, flavourings, pigments, and recreational drugs.

<i>Flammulina filiformis</i> Species of edible mushroom

Flammulina filiformis is a species of edible agaric in the family Physalacriaceae. It is widely cultivated in East Asia, and well known for its role in Japanese and Chinese cuisine. Until recently, the species was considered to be conspecific with the European Flammulina velutipes, but DNA sequencing has shown that the two are distinct.

<span class="mw-page-title-main">Lovastatin</span> Chemical compound

Lovastatin, sold under the brand name Mevacor among others, is a statin medication, to treat high blood cholesterol and reduce the risk of cardiovascular disease. Its use is recommended together with lifestyle changes. It is taken by mouth.

<i>Pleurotus ostreatus</i> Species of fungus

Pleurotus ostreatus, the oyster mushroom, oyster fungus, hiratake, or pearl oyster mushroom is a common edible mushroom. It is one of the more commonly sought wild mushrooms, though it can also be cultivated on straw and other media.

Fungiculture is the cultivation of fungi such as mushrooms. Cultivating fungi can yield foods, medicine, construction materials and other products. A mushroom farm is involved in the business of growing fungi.

<i>Pleurotus eryngii</i> Species of edible musroom

Pleurotus eryngii is an edible mushroom native to Mediterranean regions of Europe, the Middle East, and North Africa, but also grown in many parts of Asia.

<i>Pleurotus</i> Genus of fungi

Pleurotus is a genus of gilled mushrooms which includes one of the most widely eaten mushrooms, P. ostreatus. Species of Pleurotus may be called oyster, abalone, or tree mushrooms, and are some of the most commonly cultivated edible mushrooms in the world. Pleurotus fungi have also been used in mycoremediation of pollutants, such as petroleum and polycyclic aromatic hydrocarbons.

<i>Hericium erinaceus</i> Edible mushroom

Hericium erinaceus is an edible mushroom belonging to the tooth fungus group. Native to North America, Europe, and Asia, it can be identified by its long spines, occurrence on hardwoods, and tendency to grow a single clump of dangling spines. The fruit bodies can be harvested for culinary use.

<span class="mw-page-title-main">Ergothioneine</span> Naturally occurring amino acid

Ergothioneine is a naturally occurring amino acid and is a thiourea derivative of histidine, containing a sulfur atom on the imidazole ring. This compound occurs in relatively few organisms, notably actinomycetota, cyanobacteria, and certain fungi. Ergothioneine was discovered in 1909 and named after the ergot fungus from which it was first purified, with its structure being determined in 1911.

<i>Pleurotus pulmonarius</i> Species of mushroom

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<i>Pleurotus nebrodensis</i> Species of fungus

Pleurotus nebrodensis, commonly known as funcia di basilicu "fungus of basilisk" or carduncieddu di macchia "macchia carduncieddu(?)", is a fungus that was declared by the IUCN as critically endangered in 2006. This fungus only grows on limestone in northern Sicily in association with Cachrys ferulacea. The characteristics of the mushroom are its creamy white to yellow colour, its diameter of between 5 and 20 centimeters, its extremely angled gills, and the breaking apart of the cap surface at maturity.

Pleurotus tuber-regium, the king tuber mushroom, is an edible gilled fungus native to the tropics, including Africa, Asia, and Australasia. It has been shown to be a distinct species incapable of cross-breeding and phylogenetically removed from other species of Pleurotus.

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<i>Pleurotus cornucopiae</i> Species of fungus

Pleurotus cornucopiae is a species of edible fungus in the genus Pleurotus, It is quite similar to the better-known Pleurotus ostreatus, and like that species is cultivated and sold in markets in Europe and China, but it is distinguished because its gills are very decurrent, forming a network on the stem.

<i>Hypsizygus ulmarius</i> Species of mushroom-forming fungus

Hypsizygus ulmarius, also known as the elm oyster mushroom, and less commonly as the elm leech, elm Pleurotus, is an edible fungus. It has often been confused with oyster mushrooms in the Pleurotus genus but can be differentiated easily as the gills are either not decurrent or not deeply decurrent. While not quite as common as true oyster mushrooms, they have a wide range globally in temperate forests. The mushrooms and vegetative hyphae of this species have been studied in recent years for their potential benefits to human health, and mycoremediation.

<i>Auricularia heimuer</i> Species of fungus

Auricularia heimuer, also known as heimuer or black wood ear, is a species of fungus in the order Auriculariales. It is commercially cultivated for food in China at a value exceeding $4 billion (USD) per year. The species was previously referred to as the European Auricularia auricula-judae, but the latter is not known to occur in east Asia. Auricularia heimuer is a popular ingredient in many Chinese dishes, such as hot and sour soup, and it is also used in traditional Chinese medicine.

<i>Pleurotus cystidiosus</i> Species of fungus

Pleurotus cystidiosus, also known as abalone mushroom and maple oyster mushroom, is an edible species of fungus in the family Pleurotaceae, described as new to science by mycologist Orson K. Miller Jr. in 1969. It can be cultivated, with spores and growing kits being available commercially. Antromycopsis macrocarpa is the anamorphic form of this species.

References

  1. Singer, R. (1943). "Das System der Agaricales. III". Annals of Mycology. 41: 1–189.
  2. 1 2 3 Ohira, Ikuo (1990). "A revision of the taxonomic status of Pleurotus citrinopileatus" (PDF). Reports of the Tottori Mycological Institute. 28: 143–150. Archived from the original (PDF) on 2011-07-22.
  3. 1 2 3 Parmasto, Erast (July 1987). "Pleurotus citrinopileatus, one of the favourites". Mycologist . 1 (3): 106–107. doi:10.1016/S0269-915X(87)80076-9.
  4. Bruce, Andrea L. (2018). Population genomic insights into the establishment of non-native golden oyster mushrooms (Pleurotus citrinopileatus) in the United States (Thesis). University of Wisconsin, La Crosse.
  5. Stamets, Paul (2000). Growing gourmet and medicinal mushrooms. Ten Speed Press. pp. 274–289. ISBN   1-58008-175-4.
  6. Chang, Shu-ting; Miles, Philip G. (2004). "Pleurotus — A Mushroom of Broad Adaptability". Mushrooms: cultivation, nutritional value, medicinal effect, and environmental impact (2nd ed.). CRC Press. pp. 315–325. ISBN   978-0-8493-1043-0.
  7. Yu-Ling Lee; Gi-Wei Huang; Zeng-Chin Liang & Jeng-Leun Mau (June 2007). "Antioxidant properties of three extracts from Pleurotus citrinopileatus". LWT - Food Science and Technology. 40 (5): 823–833. doi:10.1016/j.lwt.2006.04.002.
  8. Shu-Hui Hu; Jinn-Chyi Wang; Juang-Lin Lien; Ean-Tun Liaw & Min-Yen Lee (March 2006). "Antihyperglycemic effect of polysaccharide from fermented broth of Pleurotus citrinopileatus". Applied Microbiology and Biotechnology. 70 (1): 107–113. doi:10.1007/s00253-005-0043-5. PMID   16001252. S2CID   21807252.
  9. Shu Hui Hu; Zeng Chin Liang; Yi Chen Chia; Juang Lin Lien; Ker Shaw Chen; Min Yen Lee & Jinn Chyi Wang (2006). "Antihyperlipidemic and Antioxidant Effects of Extracts from Pleurotus citrinopileatus". Journal of Agricultural and Food Chemistry. 54 (6): 2103–2110. doi:10.1021/jf052890d. PMID   16536582.
  10. Gunde-Cimerman N, Cimerman A (March 1995). "Pleurotus fruiting bodies contain the inhibitor of 3-hydroxy-3-methylglutaryl-coenzyme A reductase-lovastatin". Exp. Mycol. 19 (1): 1–6. doi:10.1006/emyc.1995.1001. PMID   7614366.
  11. Kalaras, Michael D.; Richie, John P.; Calcagnotto, Ana; Beelman, Robert B. (15 October 2017). "Mushrooms: A rich source of the antioxidants ergothioneine and glutathione". Food Chemistry. Elsevier. 233: 429–433. doi:10.1016/j.foodchem.2017.04.109. ISSN   0308-8146. PMID   28530594 via ScienceDirect.