Pleurotus pulmonarius

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Pleurotus pulmonarius
Pleurotus pulmonarius LC0228.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. pulmonarius
Binomial name
Pleurotus pulmonarius
(Fr.) Quél. (1872)
Pleurotus pulmonarius
Information icon.svg
Gills icon.png Gills on hymenium
Offset cap icon.svgConvex cap icon.svg Cap is offset or convex
Decurrent gills icon2.svg Hymenium is decurrent
Bare stipe icon.svg Stipe is bare
Transparent spore print icon.svg
Spore print is white
Saprotrophic fungus.svgEcology is saprotrophic
Mycomorphbox Choice.pngEdibility is choice

Pleurotus pulmonarius, commonly known as the Indian oyster, Italian oyster, phoenix mushroom, or the lung oyster, is a mushroom very similar to Pleurotus ostreatus , the pearl oyster, but with a few noticeable differences. The caps of pulmonarius are much paler and smaller than ostreatus and develops more of a stem. P. pulmonarius also prefers warmer weather than ostreatus and will appear later in the summer. Otherwise, the taste and cultivation of the two species is generally described as largely the same. [1] Another similar species, North America's Pleurotus populinus , is restricted to growing on aspen and cottonwood.

Contents

Natural habitat

Pleurotus pulmonarius is widespread in temperate and subtropical forests throughout the world. In the eastern United States, this species is generally found on hardwoods while in the west it is commonly found on conifers. [1]

Taxonomy

Description

Cultivation

Pleurotus pulmonarius is the most cultivated oyster mushroom (Pleurotus) species in Europe and North America. The most popular varieties for cultivation are the warm weather varieties, often marketed by spawn manufacturers and cultivators under the incorrect name "Pleurotus sajor-caju". The real Pleurotus sajor-caju (Fr.) Singer is in fact a separate species of mushroom, which was returned to the genus Lentinus by Pegler (1975), and is now called Lentinus sajor-caju (Fr.) Fries. [1]

Pleurotus pulmonarius is commercially cultivated in New Zealand, [3] and is sometimes sold as "Oyster mushrooms". [4] The archetypal oyster mushroom, Pleurotus ostreatus , cannot be imported into New Zealand due to perceived risks to their forestry industry. [5]

The cultivation of Pleurotus pulmonarius is very similar to how one would cultivate other types of Pleurotus species like P. ostreatus by transferring mycelium from a petri plate onto grain and then transferring the grain spawn after the mycelium colonizes it to substrates of straw, wood chips, sawdust, cardboard, coffee grounds, and other cellulose-based substrates.

Medical research

Several studies done on animals and in vitro suggest P. pulmonarius and its extracts may have possible medicinal applications for a wide range of conditions.

A polysaccharide called β-D-Glucan from P. pulmonarius reduces sensitivity to pain in mice, [6] and could be an "attractive" basis for new analgesic medications. [7] In a different study on mice, a glucan from P. pulmonarius showed potent anti-inflammatory and analgesic properties. [8] A methanol extract of P. pulmonarius displayed anti-inflammatory and antitumor activity comparable to the standard reference drugs diclofenac and cisplatin, respectively. [9]

A 2010 study concluded that extracts of P. pulmonarius may slow the proliferation of cancer cells with high galectin-3 levels, while at the same time downregulate tumour cell adherence which is directly related to the progression and spread of cancer. [10] Extracts of P. pulmonarius added to the diet of mice delayed carcinogenesis, suggesting that these extracts may be useful as an adjuvant to cancer therapies. [11]

An orally administered hot water extract of P. pulmonarius had a significant antihyperglycemic effect, halted the progression of diabetes, and reduced the mortality of alloxan induced diabetic mice by approximately 50%. It showed a synergistic effect with the antidiabetic drug glibenclamide, supporting the possibility of effective combination therapy of glibenclamide and P. pulmonarius for diabetes. [12]

Pleurotus pulmonarius may be effective in the treatment of hay fever by inhibiting the release of histamine. Powdered P. pulmonarius mushrooms caused a significant reduction in sneezing and nasal rubbing when fed in water to sensitized mice, although the effect gradually builds up over a matter of weeks. When they were given 500 mg/kg a day, a significant effect was observed after two weeks, and it was four weeks before a significant change was observed at 200 mg/kg. [13]

Extracts of P. pulmonarius attenuated the development of acute colitis in a mouse model, suggesting a possible clinical use in the treatment of colitis. [14] A further study by the same authors concluded that the extracts also inhibit colon cancer formation associated with colitis in mice. [15]

Extracts of P. pulmonarius have antimicrobial properties and exhibit antioxidant activity in vitro. [16]

Similar species

Pleurotus ostreatus is very similar, as is North America's Pleurotus populinus , which is restricted to growing on aspen and cottonwood (genus Populus ). [2] It may resemble a clitocybe, some of which are poisonous, when growing on the top of wood. [2]

See also

Related Research Articles

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

Pleurotus populinus, the aspen oyster mushroom, is a gilled fungus native to North America. It is found on dead wood of aspen and cottonwood trees. Although morphologically similar to Pleurotus ostreatus and Pleurotus pulmonarius, it has been shown to be a distinct species incapable of cross-breeding. P. populinus is reported to be edible. Unlike P. ostreatus, which fruits in the autumn and winter, P. populinus fruits in late spring and summer.

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References

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  2. 1 2 3 4 5 6 Trudell, S.; Ammirati, J. (2009). Mushrooms of the Pacific Northwest . Timber Press Field Guides. Portland, Oregon: Timber Press. pp.  134–5, 137. ISBN   978-0-88192-935-5.
  3. "Pleurotus". Fungal Guide. New Zealand: Landcare Research. Pleurotus pulmonarius. Retrieved 26 January 2012.
  4. "Mytopia Mushrooms Products". Havelock North, New Zealand: Mytopia Mushrooms. Retrieved 3 February 2012.
  5. Hall, Ian R. (April 2010). "Growing mushrooms: the commercial reality" (PDF). Lifestyle Farmer. Auckland, New Zealand: Rural Press: 42–45. Retrieved 26 January 2012. ... the grey oyster mushroom (Pleurotus ostreatus) cannot be imported into New Zealand because it could pose a risk to our forest industry.
  6. Baggio, Cristiane Hatsuko; Freitas, Cristina Setim; Martins, Daniel Fernandes; Mazzardo, Leidiane; Smiderle, Fhernanda Ribeiro; Sassaki, Guilherme Lanzi; Iacomini, Marcello; Marques, Maria Consuelo Andrade; Santos, Adair Roberto Soares (October 2010). "Antinociceptive Effects of (1→3),(1→6)-Linked β-Glucan Isolated From Pleurotus pulmonarius in Models of Acute and Neuropathic Pain in Mice: Evidence for a Role for Glutamatergic Receptors and Cytokine Pathways". The Journal of Pain. 11 (10): 965–971. doi: 10.1016/j.jpain.2010.01.005 . PMID   20418177.
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  8. Smiderle, Fhernanda R.; Olsen, Lorena M.; Carbonero, Elaine R.; Baggio, Cristiane H.; Freitas, Cristina S.; Marcon, Rodrigo; Santos, Adair R.S.; Gorin, Philip A.J.; Iacomini, Marcello (November 12, 2008). "Anti-inflammatory and analgesic properties in a rodent model of a (1→3),(1→6)-linked β-glucan isolated from Pleurotus pulmonarius". European Journal of Pharmacology. 597 (1–3): 86–91. doi:10.1016/j.ejphar.2008.08.028. PMID   18789924.
  9. Jose, Nayana; Ajith, T. A.; Janardhanan, Kainoor K. (2002). "Antioxidant, Anti-inflammatory, and Antitumor Activities of Culinary-Medicinal Mushroom Pleurotus pulmonarius (Fr.) Quél. (Agaricomycetideae)". International Journal of Medicinal Mushrooms. 4 (4): 329–335. doi:10.1615/intjmedmushr.v4.i4.60.
  10. Lavi, Iris; Levinson, Dana; Peri, Irena; Tekoah, Yoram; Hadar, Yitzhak; Schwartz, Betty (February 2010). "Chemical characterization, antiproliferative and antiadhesive properties of polysaccharides extracted from Pleurotus pulmonarius mycelium and fruiting bodies". Applied Microbiology and Biotechnology. 85 (6): 1977–1990. doi:10.1007/s00253-009-2296-x. PMID   19830415. S2CID   19238232.
  11. Wasonga, Caralyne G.O.; Okoth, Sheila A.; Mukuria, Joseph C.; Omwandho, Charles O.A. (2008). "Mushroom polysaccharide extracts delay progression of carcinogenesis in mice" (PDF). Journal of Experimental Therapeutics and Oncology. 7 (2): 147–152. PMID   18771088. Archived from the original (PDF) on 2016-03-03.
  12. Badole, Sachin L.; Patel, Naimesh M.; Thakurdesai, Prasad A.; Bodhankar, Subhash L. (June 2008). "Interaction of Aqueous Extract of Pleurotus pulmonarius (Fr.) Quel-Champ. with Glyburide in Alloxan Induced Diabetic Mice". Evidence-Based Complementary and Alternative Medicine. 5 (2): 159–164. doi:10.1093/ecam/nem010. PMC   2396481 . PMID   18604261.
  13. Yatsuzuka, Rie; Nakano, Yoshiyuki; Jiang, Shuishi; Ueda, Yuhki; Kishi, Yuko; Suzuki, Yuh; Yokota, Emiko; Rahman, Ashequr; Ono, Rie Kohno, Isato; Kamei, Chiaki (2007). "Effect of Usuhiratake (Pleurotus pulmonarius) on Sneezing and Nasal Rubbing in BALB/c Mice". Biological and Pharmaceutical Bulletin. 30 (8): 1557–1560. doi: 10.1248/bpb.30.1557 . ISSN   1347-5215. PMID   17666820. Print ISSN: 0918-6158.{{cite journal}}: CS1 maint: multiple names: authors list (link)
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