Laetiporus sulphureus

Last updated
Laetiporus sulphureus
Laetiporus sulphureus big.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Polyporales
Family: Fomitopsidaceae
Genus: Laetiporus
Species:
L. sulphureus
Binomial name
Laetiporus sulphureus
(Bull.) Murrill (1920)
Synonyms
Species synonymy
  • Agarico-carnisflammula Paulet, (1793)
  • Agarico-pulpastyptica Paulet, (1793)
  • Agaricus speciosusBattarra, (1755)
  • Boletus citrinusLumn., (1791)
  • Boletus coriaceusHuds., (1778)
  • Boletus imbricatusBull., (1788)
  • Boletus lingua-cervinaSchrank, (1789)
  • Boletus ramosusBull., (1791)
  • Boletus sulphureusMérat, (1821)
  • Boletus sulphureusBull., (1789)
  • Boletus tenaxBolton, (1788)
  • Boletus tenaxLightf., (1778)
  • Ceriomyces aurantiacus(Pat.) Sacc., (1888)
  • Ceriomyces neumaniiBres., (1920)
  • Cladomeris casearius(Fr.) Quél., (1886)
  • Cladomeris imbricatus(Bull.) Quél., (1886)
  • Cladoporus sulphureus(Bull.) Teixeira, (1986)
  • Daedalea imbricata(Bull.) Purton, (1821)
  • Grifola sulphurea(Bull.) Pilát, (1934)
  • Laetiporus speciosusBattarra ex Murrill, (1904)
  • Laetiporus sulphureus f. aurantiacus(Pat.) Bondartsev, (1953)
  • Laetiporus sulphureus f. ramosus(Quél.) Bondartsev, (1953)
  • Leptoporus casearius(Fr.) Quél., (1888)
  • Leptoporus imbricatus(Bull.) Quél., (1888)
  • Leptoporus ramosus(Bull.) Quél., (1888)
  • Leptoporus sulphureus(Bull.) Quél.,(1888)
  • Merisma imbricatum(Bull.) Gillet, (1878)
  • Merisma sulphureus(Bull.) Gillet, (1878)
  • Polypilus casearius(Fr.) P. Karst., (1882)
  • Polypilus imbricatus(Bull.) P. Karst., (1882)
  • Polypilus sulphureus(Bull.) P. Karst., (1881)
  • Polyporellus rubricus(Berk.) P. Karst., (1880)
  • Polyporus candicinus(Scop.) J. Schröt.
  • Polyporus caseariusFr., Epicr. (1838)
  • Polyporus cincinnatusMorgan, (1885)
  • Polyporus imbricatus(Bull.) Fr., (1821)
  • Polyporus ramosus(Bull.) Gray, (1821)
  • Polyporus rostafinskiiBlonski, (1888)
  • Polyporus rubricusBerk., (1851)
  • Polyporus sulphureus(Bull.) Fr., (1821)
  • Polyporus todariInzenga, (1866)
  • Ptychogaster aurantiacusPat., (1885)
  • Ptychogaster aureusLloyd, (1921)
  • Sistotrema sulphureum(Bull.) Rebent., (1804)
  • Stereum speciosumFr., (1871)
  • Sulphurina sulphurea(Quél.) Pilát, (1942)
  • Tyromyces sulphureus(Bull.) Donk, (1933)
Laetiporus sulphureus
Information icon.svg
Pores icon.pngPores on hymenium
Flat cap icon.svg Cap is flat
NA cap icon.svg Hymenium attachment is irregular or not applicable
NA cap icon.svgLacks a stipe
Transparent spore print icon.svg
Spore print is white
Saprotrophic fungus.svgParasitic fungus.svgEcology is saprotrophic or parasitic
Mycomorphbox Choice.pngEdibility is choice

Laetiporus sulphureus is a species of bracket fungus (fungi that grow on trees) found in Europe and North America. Its common names are sulphur polypore, sulphur shelf, and chicken-of-the-woods. Its fruit bodies grow as striking golden-yellow shelf-like structures on tree trunks and branches. Old fruitbodies fade to pale beige or pale grey. The undersurface of the fruit body is made up of tubelike pores rather than gills.

Contents

Laetiporus sulphureus is a saprophyte and occasionally a weak parasite, causing brown cubical rot in the heartwood of trees on which it grows. Unlike many bracket fungi, it is edible when young, although adverse reactions have been reported.

Taxonomy and phylogenetics

Laetiporus sulphureus was first described as Boletus sulphureus by French mycologist Pierre Bulliard in 1789. It has had many synonyms and was finally given its current name in 1920 by American mycologist William Murrill. Laetiporus means "with bright pores" and sulphureus means "the colour of sulphur". [1]

Investigations in North America have shown that there are several similar species within what has been considered L. sulphureus and that the true L. sulphureus may be restricted to regions east of the Rocky Mountains. [2] Phylogenetic analyses of ITS and nuclear large subunit and mitochondrial small subunit rDNA sequences from North American collections have delineated five distinct clades within the core Laetiporus clade. Sulphureus clade I contains white-pored L. sulphureus isolates, while Sulphureus clade II contains yellow-pored L. sulphureus isolates. [3] [4]

Description

Underside, on Ginkgo biloba Hortus Haren 18-05-2019. (actm.) 03.jpg
Underside, on Ginkgo biloba

The fruiting body emerges directly from the trunk of a tree and is initially knob-shaped, but soon expands to fan-shaped shelves, typically growing in overlapping tiers. It is sulphur-yellow to bright orange in color and has a suedelike texture. Old fruitbodies fade to tan or whitish. Each shelf may be anywhere from 5 to 60 centimetres (2 to 23+12 inches) across and up to 4 cm (1+12 in) thick. [2] The fertile surface is sulphur-yellow with small pores or tubes and produces a white spore print. [5] When fresh, the flesh is succulent with a strong fungal aroma and exudes a yellowish, transparent juice, but soon becomes dry and brittle.

Distribution and habitat

Chicken of the Woods (Laetiporus sulphureus) on the Trinity Trail, Palos Heights, Illinois, on September 10, 2019. Chicken of the Woods L. sulphureus.jpg
Chicken of the Woods (Laetiporus sulphureus) on the Trinity Trail, Palos Heights, Illinois, on September 10, 2019.

Laetiporus sulphureus is widely distributed across Europe and North America, although its range may be restricted to areas east of the Rockies. It grows on dead or mature hardwoods and has been reported from a very wide variety of host trees, such as Quercus , Prunus , Pyrus , Populus , Salix , Robinia , and Fagus , occasionally also from conifers, [6] from August to October or later, sometimes as early as June. In the Mediterranean region, this species is usually found on Ceratonia and Eucalyptus . [7] It can usually be found growing in clusters. [8]

Parasitism

The fungus causes brown cubical rot of heartwood in the roots, tree base and stem. After infection, the wood is at first discolored yellowish to red but subsequently becomes reddish-brown and brittle. At the final stages of decay, the wood can be rubbed like powder between the fingers. [9]

Guinness world record

A specimen weighing 45 kilograms (100 lb) was found in the New Forest, Hampshire, United Kingdom, on 15 October 1990. [10]

Palatability

Laetiporus sulphureus prepared dish, with onions Laetiporus sulphureus dish 2010 G1.jpg
Laetiporus sulphureus prepared dish, with onions

Due to its taste, Laetiporus sulphureus has been called the chicken polypore and chicken-of-the-woods [11] (not to be confused with Grifola frondosa , the so-called hen-of-the-woods).

Many people think that the mushroom tastes like crab or lobster leading to the nickname lobster-of-the-woods. The authors of Mushrooms in Color said that the mushroom tastes good sauteed in butter or prepared in a cream sauce served on toast or rice. [12] It is highly regarded in Germany and North America. [13]

Young specimens are edible if they exude large amounts of a clear to pale yellow watery liquid. [8] Only the young outer edges of larger specimens should be collected, as older portions tend to be tough, unpalatable, and bug-infested. [14] The mushroom should not be eaten raw. [1] Certain species of deer consume this type of mushroom. [15]

Adverse effects

Some people have experienced gastrointestinal upset after eating this mushroom, [12] and it should not be consumed raw.

Severe adverse reactions can occur, including vomiting and fever, in about 10% of the population, but this is now thought to be the result of confusion with morphologically similar species such as Laetiporus huroniensis , which grows on hemlock trees, and L. gilbertsonii , which grows on Eucalyptus . [16]

Bioactivity

The fungus produces the Laetiporus sulphureus lectin (LSL), which exhibits haemolytic and haemagglutination activities. Haemolytic lectins are sugar-binding proteins that lyse and agglutinate cells. These biochemical activities are promoted when bound to carbohydrates. [17]

Cultivation

Compared with species such as Agaricus bisporus (Swiss Brown mushroom) and the oyster mushroom, commercial cultivation of Laetiporus occurs at a much smaller and less mechanized scale.

See also

Related Research Articles

<span class="mw-page-title-main">Polyporales</span> Order of fungi

The Polyporales are an order of about 1800 species of fungi in the division Basidiomycota. The order includes some polypores as well as many corticioid fungi and a few agarics. Many species within the order are saprotrophic, most of them wood-rotters. Some genera, such as Ganoderma and Fomes, contain species that attack living tissues and then continue to degrade the wood of their dead hosts. Those of economic importance include several important pathogens of trees and a few species that cause damage by rotting structural timber. Some of the Polyporales are commercially cultivated and marketed for use as food items or in traditional Chinese medicine.

<i>Laetiporus</i> Genus of edible mushrooms

Laetiporus is a genus of edible mushrooms found throughout much of the world. Some species, especially Laetiporus sulphureus, are commonly known as sulphur shelf, chicken of the woods, the chicken mushroom, or the chicken fungus because it is often described as tasting like and having a texture similar to that of chicken meat.

<span class="mw-page-title-main">Polypore</span> Group of fungi

Polypores are a group of fungi that form large fruiting bodies with pores or tubes on the underside. They are a morphological group of basidiomycetes-like gilled mushrooms and hydnoid fungi, and not all polypores are closely related to each other. Polypores are also called bracket fungi or shelf fungi, and they characteristically produce woody, shelf- or bracket-shaped or occasionally circular fruiting bodies that are called conks.

<span class="mw-page-title-main">Bolete</span> Type of fungal fruiting body

A bolete is a type of mushroom, or fungal fruiting body. It can be identified thanks to a unique cap. On the underside of the cap there is usually a spongy surface with pores, instead of the gills typical of mushrooms. A similar pore surface is found in polypores, but these species generally have a different physical structure from boletes, and have different microscopic characteristics than boletes. Many polypores have much firmer, often woody, flesh.

<i>Fistulina hepatica</i> Species of fungus

Fistulina hepatica, commonly known as the beefsteak fungus, beefsteak polypore, poor man’s steak, ox tongue, or tongue mushroom, is an unusual bracket fungus classified in the Agaricales, that is commonly seen in Britain and the rest of Europe, but which can also be found in North America, Australia, North Africa, and Southern Africa. As its name suggests, it looks remarkably similar to a slab of raw meat. It has been used as a meat substitute in the past, and can still be found in some French markets. It has a sour, slightly acidic taste. For eating, it must be collected young and it may be tough and need to be cooked for a long time.

<i>Fomitopsis pinicola</i> Stem decay fungus

Fomitopsis pinicola, is a stem decay fungus common on softwood and hardwood trees. Its conk is known as the red-belted conk. The species is common throughout temperate Europe and Asia. It is a decay fungus that serves as a small-scale disturbance agent in coastal rainforest ecosystems. It influences stand structure and succession in temperate rainforests. It performs essential nutrient cycling functions in forests. As well as a key producer of brown rot residues that are stable soil components in coniferous forest ecosystems. It has been reported that mushrooms have significant antioxidant activity.

<i>Phaeolus schweinitzii</i> Species of fungus

Phaeolus schweinitzii, commonly known as velvet-top fungus, dyer's polypore, dyer's mazegill, or pine dye polypore, is a fungal plant pathogen that causes butt rot on conifers such as Douglas-fir, spruce, fir, hemlock, pine, and larch. P. schweinitzii is a polypore, although unlike bracket fungi the fruiting body may appear terrestrial when growing from the roots or base of the host tree.

<i>Meripilus giganteus</i> Species of fungus

Meripilus giganteus is a polypore fungus in the family Meripilaceae. It causes a white rot in various types of broadleaved trees, particularly beech (Fagus), but also Abies, Picea, Pinus, Quercus and Ulmus species. This bracket fungus, commonly known as the giant polypore or black-staining polypore, is often found in large clumps at the base of trees, although fruiting bodies are sometimes found some distance away from the trunk, parasitizing the roots. M. giganteus has a circumboreal distribution in the northern Hemisphere, and is widely distributed in Europe. In the field, it is recognizable by the large, multi-capped fruiting body, as well as its pore surface that quickly darkens black when bruised or injured.

<i>Phellinus igniarius</i> Species of fungus

Phellinus igniarius, commonly known as the willow bracket, fire sponge,false tinder polypore, punk ash polypore, or false tinder conk, is a fungus of the family Hymenochaetaceae. Like other members of the genus of Phellinus, it lives by saprotrophic nutrition, in which the lignin and cellulose of a host tree is degraded and is a cause of white rot.

<i>Bridgeoporus</i> Genus of fungi

Bridgeoporus is a fungal genus in the family Polyporaceae. A monotypic genus, it contains the single polypore species Bridgeoporus nobilissimus, first described to science in 1949. Commonly known both as the noble polypore and the fuzzy Sandozi, this fungus produces large fruit bodies that have been found to weigh up to 130 kilograms (290 lb). The upper surface of the fruit body has a fuzzy or fibrous texture that often supports the growth of algae, bryophytes, or vascular plants.

<i>Neofavolus alveolaris</i> Species of fungus

Neofavolus alveolaris, commonly known as the hexagonal-pored polypore, is a species of fungus in the family Polyporaceae. It causes a white rot of dead hardwoods. Found on sticks and decaying logs, its distinguishing features are its yellowish to orange scaly cap, and the hexagonal or diamond-shaped pores. It is widely distributed in North America, and also found in Asia, Australia, and Europe.

<i>Grifola frondosa</i> Species of fungus

Grifola frondosa is a polypore mushroom that grows at the base of trees, particularly old growth oaks or maples. It is typically found in late summer to early autumn. It is native to China, Europe, and North America.

<i>Laetiporus persicinus</i> Species of fungus

Laetiporus persicinus, commonly known as the white chicken mushroom, is an edible mushroom of the genus Laetiporus. It is closely related to the chicken mushroom, or Laetiporus sulphureus. Laetiporus persicinus has a salmon pink cap and white pores. This mushroom grows on dead and living hardwood and softwood trees. It was first described scientifically by Miles Berkeley and Moses Ashley Curtis in 1853 as Polyporus persicinus. It has been collected in Africa, Australia, Asia, Europe, Greenland, Iceland, North America, and South America.

<i>Hapalopilus rutilans</i> Species of fungus

Hapalopilus rutilans is a species of polypore fungus in the family Polyporaceae. Officially described in 1821, it was transferred to its current genus Hapalopilus six decades later. It is commonly known as the tender nesting polypore, purple dye polypore, or the cinnamon bracket. This widely distributed species is found on five continents. It grows on the fallen or standing dead wood of deciduous trees, in which it fruits singly, in groups, fused, or in overlapping clusters. Fruit bodies are in the form of kidney-shaped to semicircular, cinnamon-orange-brown brackets. The underside of the fruit body features a yellowish to brownish pore surface with tiny angular pores, from which spores are released.

<i>Pycnoporellus alboluteus</i> Species of fungus

Pycnoporellus alboluteus, commonly known as the orange sponge polypore, is a species of polypore fungus in the family Fomitopsidaceae. Distributed throughout the boreal conifer zone, the fungus is found in mountainous regions of western North America, and in Europe. It causes a brown cubical rot of conifer wood, especially spruce, but also fir and poplar. The soft, spongy orange fruit bodies grow spread out on the surface of fallen logs. Mature specimens have tooth-like or jagged pore edges. A snowbank mushroom, P. alboluteus can often be found growing on logs or stumps protruding through melting snow. Although the edibility of the fungus and its usage for human culinary purposes are unknown, several species of beetles use the fungus as a food source.

<i>Laetiporus conifericola</i> Species of fungus

Laetiporus conifericola is a species of polypore fungus in the family Fomitopsidaceae. It is found in western North America ranging from California to Alaska, where it grows as a plant pathogen on conifer trees, particularly fir, spruce, and hemlock. Fruit bodies of the fungus comprise overlapping pore-bearing plates, measuring collectively up to 60 cm (24 in) across, and up to 4 cm (2 in) thick. Their color ranges from bright orange to salmon orange on the upper surface of the cap and stipe, with a yellow pore surface on the cap underside. Spores are egg-shaped, smooth, hyaline (translucent), and measure 6.5–8.0 by 4.0–5.0 μm. The species has a pleasant odour when fresh.

<i>Laetiporus gilbertsonii</i> Species of fungus

Laetiporus gilbertsonii is a species of polypore fungus in the family Fomitopsidaceae. It is found in western North America and South America. It was one of three new Laetiporus species published in 2001, which were distinguished genetically from the common Laetiporus sulphureus; the others were L. conifericola and L. huroniensis. The type collection, made in San Francisco's Golden Gate Park in 1997, was found fruiting on a eucalyptus tree. It has also been collected in Oregon and Washington. The fungus is named in honor of mycologist Robert Lee Gilbertson. L. gilbertsonii is edible, although some people have reported experiencing upset stomach after consuming it. Laetiporus conifericola is very similar in appearance, but is readily distinguished by its growth on conifers.

<i>Laetiporus montanus</i> Species of fungus

Laetiporus montanus is a species of polypore fungus in the family Fomitopsidaceae. It is found in mountainous areas of central Europe and in China, where it grows on conifers.

<i>Laetiporus portentosus</i> Species of fungus

Laetiporus portentosus is a species of polypore fungus in the family Fomitopsidaceae, found in South America, Australia, and in the North Island and northern South Island of New Zealand.

References

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  2. 1 2 Kuo, Michael (March 2005). "Laetiporus sulphureus: The Chicken of the Woods". Mushroomexpert.com. Retrieved 23 February 2010.
  3. Lindner DL, Banik MT (2008). "Molecular phylogeny of Laetiporus and other brown rot polypore genera in North America". Mycologia. 100 (3): 417–30. doi:10.3852/07-124R2. PMID   18751549. S2CID   25173644.
  4. Burdsall, Jr., Harold H.; Banik, Mark T. (2001). "The genus Laetiporus in North America". Harvard Papers in Botany 6 (1): 43–55.
  5. "Laetiporus sulphureus". New Jersey Mycological Association. Archived from the original on 2009-03-09. Retrieved 2010-02-22.
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  8. 1 2 Spahr, David L. (2009). Edible and Medicinal Mushrooms of New England and Eastern Canada. North Atlantic Books. p. 124. ISBN   978-1-55643-795-3.
  9. Schwarze FWMR; Engels J; Mattheck C. (2000). Fungal strategies of wood decay in trees. Springer. p. 73. ISBN   978-3-540-67205-0.
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  11. Phillips, Roger (2010). Mushrooms and Other Fungi of North America. Buffalo, NY: Firefly Books. p. 303. ISBN   978-1-55407-651-2.
  12. 1 2 K. Miller, Jr., Orson; Miller, H.; Miller, Hope (1980). Mushrooms in Color. South China Printing Co. ISBN   978-0-525-93136-2.[ page needed ]
  13. Phillips, Roger (2010). "Laetiporus sulphureus". Roger's Mushrooms. Retrieved 23 February 2010.
  14. Lyle, Katie Letcher (2010) [2004]. The Complete Guide to Edible Wild Plants, Mushrooms, Fruits, and Nuts: How to Find, Identify, and Cook Them (2nd ed.). Guilford, CN: FalconGuides. p. 52. ISBN   978-1-59921-887-8. OCLC   560560606.
  15. Rost, Amy (2007). Survival Wisdom & Know How: Everything You Need to Know to Thrive in the Wilderness. Black Dog Publishing. p. 149. ISBN   978-1-57912-753-4.
  16. Volk, Thomas J. (July 2001). "Laetiporus cincinnatus, the white-pored chicken of the woods, Tom Volk's Fungus of the Month for July 2001". Tom Volk's Fungi. Retrieved 2017-02-01.
  17. Mancheño JM, Tateno H, Goldstein IJ, Martínez-Ripoll M, Hermoso JA (April 2005). "Structural analysis of the Laetiporus sulphureus hemolytic pore-forming lectin in complex with sugars". The Journal of Biological Chemistry. 280 (17): 17251–9. doi: 10.1074/jbc.M413933200 . PMID   15687495.