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The fungus grows in [[coniferous forest]]s in its native range, and pine [[plantation]]s in countries where it has become [[Naturalisation (biology)|naturalised]]. It forms [[symbiotic]] [[ectomycorrhiza]]l associations with living trees by enveloping the tree's underground roots with sheaths of fungal tissue, and is sometimes parasitised by the related mushroom ''[[Gomphidius roseus]]''. ''Suillus bovinus'' produces [[spore]]-bearing [[basidiocarp|fruit bodies]], often in large numbers, above ground. The mushroom has a convex grey-yellow or ochre [[pileus (mycology)|cap]] reaching up to {{convert|10|cm|in|0|abbr=on}} in diameter, which flattens with age. Like other boletes, it has tubes extending downward from the underside of the cap, rather than [[lamella (mycology)|gills]]; spores escape at maturity through the tube openings, or pores. The pore surface is yellow. The [[Stipe (mycology)|stipe]], more slender than those of other ''Suillus'' boletes, lacks a [[annulus (mycology)|ring]].
The fungus grows in [[coniferous forest]]s in its native range, and pine [[plantation]]s in countries where it has become [[Naturalisation (biology)|naturalised]]. It forms [[symbiotic]] [[ectomycorrhiza]]l associations with living trees by enveloping the tree's underground roots with sheaths of fungal tissue, and is sometimes parasitised by the related mushroom ''[[Gomphidius roseus]]''. ''Suillus bovinus'' produces [[spore]]-bearing [[basidiocarp|fruit bodies]], often in large numbers, above ground. The mushroom has a convex grey-yellow or ochre [[pileus (mycology)|cap]] reaching up to {{convert|10|cm|in|0|abbr=on}} in diameter, which flattens with age. Like other boletes, it has tubes extending downward from the underside of the cap, rather than [[lamella (mycology)|gills]]; spores escape at maturity through the tube openings, or pores. The pore surface is yellow. The [[Stipe (mycology)|stipe]], more slender than those of other ''Suillus'' boletes, lacks a [[annulus (mycology)|ring]].


Im not telling you... XD
==Taxonomy and naming==
''Suillus bovinus'' was one of the many species first [[species description|described]] in 1753 by the "father of taxonomy" [[Carl Linnaeus]], who, in the second volume of his ''[[Species Plantarum]]'', gave it the name ''Boletus bovinus''.<ref name="Linnaeus 1177"/> The [[botanical name|specific epithet]] is derived from the [[Latin]] word ''bos'', meaning "cattle".<ref name="Simpson 1979"/> The fungus was reclassified in (and became the [[type species]] of) the genus ''[[Suillus]]'' by French naturalist [[Henri François Anne de Roussel]] in 1796.<ref name="Roussel 1796"/> ''Suillus'' is an ancient term for fungi, and is derived from the word "swine".<ref name="Arora 1986"/> [[Lucien Quélet]] classified it as ''Viscipellis bovina'' in 1886.<ref name="Quélet 1886"/>

In works published before 1987, the species was written fully as ''Suillus bovinus'' (L.:[[Elias Magnus Fries|Fr.]]) [[Otto Kuntze|Kuntze]], as the description by Linnaeus had been [[sanctioned name|name sanctioned]] in 1821 by the "father of mycology", Swedish naturalist Elias Magnus Fries. The starting date for all the [[mycota]] had been set by general agreement as 1 January 1821, the date of Fries's work. Furthermore, as Roussel's description of ''Suillus'' predated this as well, the authority for the genus was assigned to Otto Kuntze. The 1987 edition of the [[International Code of Botanical Nomenclature]] changed the rules on the starting date and primary work for names of fungi, and names can now be considered [[Validly published name (botany)|valid]] as far back as 1 May 1753, the date of publication of Linnaeus's work.<ref name="Hawksworth 2001"/>

[[Common name]]s include Jersey cow mushroom, bovine bolete,<ref name="Phillips 2006"/> and euro cow bolete.<ref name="Laessoe 2002"/> One proposed origin for the scientific name is that medieval knights—who revered ''[[Tricholoma equestre]]''—considered this mushroom fit only for cattle-drovers as it was not highly valued.<ref name="Lamaison 2005"/> The mushroom's colour is similar to that of a [[Jersey cow]].<ref>{{Cite web|url=https://www.first-nature.com/fungi/suillus-bovinus.php|title=Suillus bovinus, Bovine Bolete mushroom|website=www.first-nature.com|access-date=2019-09-19|archive-url=https://web.archive.org/web/20190403133950/https://www.first-nature.com/fungi/suillus-bovinus.php|archive-date=2019-04-03|url-status=live}}</ref>

A limited genetic sampling of species in a 1996 study by Annette Kretzer and colleagues showed ''Suillus bovinus'' was related to a [[lineage (evolution)|lineage]] that diverged to ''[[Suillus punctipes|S.&nbsp;punctipes]]'', ''[[Suillus variegatus|S.&nbsp;variegatus]]'' and ''[[Suillus tomentosus|S.&nbsp;tomentosus]]''.<ref name="Kretzer 1996"/> A 2001 study found it was not closely related to other European species, and that all populations tested were closer to each other than any other and hence it was a cohesive species.<ref name="Manian 2001"/>

Czech mycologist Josef Šutara [[circumscription (taxonomy)|circumscribed]] the genus ''Mariaella'' in 1987, assigning ''Mariaella bovina'' as the type species.<ref name="Šutara 1987"/> ''Mariaella'' contained ''Suillus'' species in [[section (biology)|section]] ''Fungosi''. Molecular studies do not support the existence of ''Mariaella'', and so it is considered [[synonym (biology)|synonymous]] with ''Suillus''.<ref name="Watling 2008"/> Older synonyms for ''S.&nbsp;bovinus'' include those resulting from generic transfers to ''[[Agaricus]]'' by [[Jean-Baptiste Lamarck]] in 1783, and the now-obsolete ''Ixocomus'' by [[Lucien Quélet]] in 1888.<ref name="urlMycoBank"/>

In 1951, [[Arthur Anselm Pearson]] described the [[variety (botany)|variety]] '' Boletus bovinus'' var. ''viridocaerulescens'',<ref name="Pearson 1950"/> which was later transferred to ''Suillus'' by [[Rolf Singer]] in 1961.<ref name="Singer 1962"/> This variant, collected in [[Western Cape Province]], South Africa, differs from the main form by the staining reaction of the cap flesh, which turns dark or light greenish-blue upon injury.<ref name="Pearson 1950"/> [[Index Fungorum]] does not, however, recognise the variety as having independent [[taxonomy (biology)|taxonomic]] significance.<ref name="urlFungorum: Boletus bovinus var. viridocaerulescens"/>

Chemical analysis of [[biological pigment|pigments]] and [[wikt:chromogen|chromogens]] showed that ''Suillus'' was more closely related to ''[[Gomphidius]]'' and ''[[Rhizopogon]]'' than to other boletes, and hence ''Suillus bovinus'' and its allies were transferred from the [[Boletaceae]] to the newly circumscribed family [[Suillaceae]] in 1997.<ref name="Besl 1997"/> [[Molecular phylogenetics|Molecular]] studies have reinforced how distantly related these fungi are from ''[[Boletus edulis]]'' and its allies.<ref name="Binder 2006"/>


==Description==
==Description==

Revision as of 17:37, 19 September 2019

Suillus bovinus
S. bovinus
Pine woods, Galicia
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Boletales
Family: Suillaceae
Genus: Suillus
Species:
S. bovinus
Binomial name
Suillus bovinus
(L.) Roussel (1806)
Synonyms[1]
  • Boletus bovinus L. (1753)
  • Agaricus bovinus (L.) Lam. (1783)
  • Ixocomus bovinus (L.) Quél. (1888)
  • Mariaella bovina (L.) Šutara (1987)
Suillus bovinus
View the Mycomorphbox template that generates the following list
Pores on hymenium
Cap is flat or convex
Hymenium is adnate or decurrent
Stipe is bare
Spore print is olive-brown
Ecology is mycorrhizal
Edibility is edible

Suillus bovinus, also known as the Jersey cow mushroom or bovine bolete, is a pored mushroom of the genus Suillus in the family Suillaceae. A common fungus native to Europe and Asia, it has been introduced to North America and Australia. It was initially described as Boletus bovinus by Carl Linnaeus in 1753, and given its current binomial name by Henri François Anne de Roussel in 1806. It is an edible mushroom, though not highly regarded.

The fungus grows in coniferous forests in its native range, and pine plantations in countries where it has become naturalised. It forms symbiotic ectomycorrhizal associations with living trees by enveloping the tree's underground roots with sheaths of fungal tissue, and is sometimes parasitised by the related mushroom Gomphidius roseus. Suillus bovinus produces spore-bearing fruit bodies, often in large numbers, above ground. The mushroom has a convex grey-yellow or ochre cap reaching up to 10 cm (4 in) in diameter, which flattens with age. Like other boletes, it has tubes extending downward from the underside of the cap, rather than gills; spores escape at maturity through the tube openings, or pores. The pore surface is yellow. The stipe, more slender than those of other Suillus boletes, lacks a ring.

Im not telling you... XD

Description

Bisected fruit body

The fruit body—colloquially called a mushroom—of Suillus bovinus is a basidiocarp which is smaller and daintier than most other boletes.[2] The cap is initially convex, then flat with a wavy margin and a grey-yellow or ochre with pink tinge in some specimens. It ranges from 3–10 cm (1+1⁄4–4 in) in diameter and has a sticky skin. The flesh is whitish, yellowish or clay-coloured and has a fruity smell.[3] Sometimes turning a pink tinge when bruised,[2] the flesh is spongy and rubbery.[4] Like other boletes, it has pores instead of gills that make up the hymenophore on the underside of the cap. Suillus bovinus has a characteristic compound pore layer, consisting of an outer layer of coarse, angular pores overlaying an inner layer of finer pores.[5] The pores are grey- to olive-yellow and generally decurrent,[3] comprising yellow to olive-yellow tubes that measure 0.3–1 cm (1⁄8–3⁄8 in) long.[5] The 4–6 cm (1+1⁄2–2+1⁄4 in) tall stipe, similar in colour to the cap, tends to be narrower towards the base. With a diameter of 0.5–0.8 cm (1⁄4–3⁄8 in),[3] it is more slender than those of other boletes.[2]

Closeup of pore surface

The spore print is an olive-brown colour. The oval to spindle-shaped spores have dimensions of 8–10 by 3.5–4.5 μm.[3] Basidia (spore-bearing cells) are cylindrical to narrowly club-shaped, measuring 22.4–33.4 by 5.8–8.0 μm. They bear four sterigmata (each holding a single spore), which are up to 6.8 μm long. Cystidia are present on both the tube ends (cheilocystidia) and tube faces (pleurocystidia). There are no clamp connections in the hyphae of Suillus bovinus. The cap cuticle comprises filamentous, gelatinized hyphae with a diameter of 2.6–5.0 μm.[6] The mycelium has a pink tinge.[2]

The distinctive colour of the cap and pores make it hard to confuse with other species.[7] Often found in similar habitats is S. variegatus, though this species has a granular cap and dark olive pores,[4] which are smaller and not decurrent. It can also bruise blue.[2]

Distribution and habitat

Suillus bovinus is found in conifer woods and plantations across Europe, including subalpine regions in the Alps, up to altitudes of 800 m (2500 ft).[7] It is common in Lithuania, where it associates with Scots pine (Pinus sylvestris), the only naturally occurring pine in that country.[8] Preferred soils of S. bovinus are often acidic, sand-based, or sometimes calcareous (chalky) and moraine.[9] In Asia, it has been recorded in Taiwan,[10] and in Japan, where it associates with Japanese red pine (Pinus densiflora).[11] In China, it has been recorded from provinces Anhui, Fujian, Guangdong, Hunan, Jiangxi, and Zhejiang.[12]

Suillus bovinus has been introduced into other areas. In North America, where it is thought to have been introduced with Scots pine, it is found in the eastern United States, including North Carolina, Pennsylvania, Vermont, and the Adirondack Mountains of New York.[13] It has been recorded infrequently under Scots pine in Australia,[14] where it has been found as far north as southern Queensland,[15] and in more southerly locations including New South Wales and Kuitpo Forest.[6] It has been recorded in New Zealand.[16] In South Africa, it grows with Pinus radiata.[17]

Ecology

Gomphidius roseus growing alongside Suillus bovinus

Suillus bovinus is mycorrhizal, forming symbiotic associations with living trees by enveloping the tree's underground roots with sheaths of fungal tissue. Field work in pine forests in Sweden analysing the population structure of Suillus bovinus found that mushrooms were more abundant in younger forests and forests with disturbed areas, which contained a higher number of genets (colonies)—700 to 5700 per hectare—compared with 30 to 120 genets per hectare in mature stands. Older colonies in mature forests could be 17.5 m (57+1⁄2 ft) in diameter against 1.7–5.3 m (5+1⁄2–17+1⁄2 ft) diameter in young forests.[9] Spore-bearing mushrooms (sporocarps) produce a huge number of spores (estimated in a Finnish study at 240 million to 1.2 billion per mushroom), of which only a small number grow successfully; this large number is thought to explain the larger numbers of colonies in disturbed and young forests, while the fungus' vegetative spread becomes more important in established forests.[18] Colonies of S. bovinus do not overlap, which indicates they suppress each other's growth.[9] The median lifespan of a colony was estimated to be 36 years.[19] Field work conducted in Swedish pine forests suggested that S. variegatus suppressed the growth of S. bovinus, as there was a negative correlation in occurrence.[20]

Suillus bovinus fruit bodies attacked by the yellow mould Dicranophora fulva

A Finnish study published in 1997 found that bacterial communities under P. sylvestris without mycorrhizae metabolised organic and amino acids, while communities among S. bovinus metabolised mannitol, a sugar alcohol. The mycelia also extended the environment in the soil that the bacteria were able to grow in.[21] An experimental study in Portugal showed that Pinus pinaster trees grew better after being inoculated with mycelium from S. bovinus, Laccaria laccata and Lactarius deterrimus and spores of Pisolithus tinctorius and Scleroderma citrinum. These fungi were proposed as an alternative for chemical fertiliser in arboriculture of pine trees.[22] Suillus bovinus has been shown to improve the tolerance of its host Pinus sylvestris to metal pollutants such as cadmium and zinc,[23][24] though not to hazardous organic compounds such as m-toluate.[23]

Experimental work in 1986 showed that Suillus bovinus could metabolise proteins and peptides directly, causing a drop in nitrogen in growth media, which suggested the species has some saprophytic activity.[25]

The related rosy spike-cap (Gomphidius roseus) is found exclusively with this species, and is now thought to be parasitic upon the mycelium of Suillus bovinus.[26] This is evidenced by microscopic examination, which shows that G. roseus inserts haustoria in plant root cells and does not produce significant mycelium itself. Furthermore, G. roseus is never found growing in isolation, only with S. bovinus though the latter species is found without the former.[26] Dicranophora fulva is a yellow mould that has been found growing on decaying S. bovinus fruit bodies in Europe and the United States.[27]

Edibility

Suillus bovinus tastes mild and is edible, although it is not highly regarded.[2] When cooked, it releases a lot of fluid, which can be collected and reduced or strained to make a sauce. Its flavour is made more intense by drying.[28] The soft and rubbery consistency of older specimens—as well as their proneness to maggot infestation—renders them almost inedible.[2] Fruit bodies are part of the later summer diet of the red squirrel in Eurasia, which collects the mushrooms and stores them in tree forks for a ready food supply after the onset of frost.[29] There are several fly species that often use S. bovinus fruit bodies to rear their young, including Bolitophila rossica, Exechia separata, Exechiopsis indecisa, Pegomya deprimata, and Pegohylemyia silvatica.[30]

References

  1. ^ "Suillus bovinus (L.) Roussel 1806". MycoBank. International Mycological Association. Retrieved 2011-06-06.
  2. ^ a b c d e f g Lamaison J-L, Polese J-M (2005). The Great Encyclopedia of Mushrooms. Cologne, Germany: Könemann. p. 90. ISBN 978-3-8331-1239-3.
  3. ^ a b c d Phillips R (2006). Mushrooms. London: Pan MacMillan. p. 295. ISBN 978-0-330-44237-4.
  4. ^ a b Haas H. (1969). The Young Specialist Looks at Fungi. London: Burke. p. 52. ISBN 978-0-222-79409-3.
  5. ^ a b Laessoe T. (2002). Mushrooms. Smithsonian Handbooks (2nd ed.). London: Dorling Kindersley Adult. p. 200. ISBN 978-0-7894-8986-9.
  6. ^ a b Grgurinovic CA. (1997). Larger Fungi of South Australia. Adelaide: State Herbarium of South Australia. pp. 214–16. ISBN 978-0-7308-0737-7.
  7. ^ a b Nilsson S, Persson O (1977). Fungi of Northern Europe 1: Larger Fungi (Excluding Gill Fungi). London: Penguin Books. pp. 114–15. ISBN 978-0-14-063005-3.
  8. ^ Motiejūnaitė J, Kačergius A, Kasparavičius J (2013). "Preliminary studies on genetic diversity of ectomycorrhizal fungus Suillus bovinus in Lithuania". Botanica Lithuanica. 19 (2): 91–98. doi:10.2478/botlit-2013-0012. Open access icon
  9. ^ a b c Dahlberg A, Stenlid J (1992). "Size, distribution and biomass of genets in populations of Suillus bovinus (L.: Fr.) Roussel revealed by somatic incompatibility". New Phytologist. 128 (2): 225–34. doi:10.1111/j.1469-8137.1994.tb04006.x.
  10. ^ Yeh K-W, Chen Z-C (1980). "The boletes of Taiwan" (PDF). Taiwania. 25 (1): 166–84 (see pp. 178–80). Archived (PDF) from the original on 2015-11-26. Retrieved 2015-11-09.
  11. ^ Zeller SM, Togashi K (1934). "The American and Japanese matsu-takes". Mycologia. 26 (9): 544–58. doi:10.2307/3754184. JSTOR 3754184. Archived from the original on 2015-09-23. Retrieved 2015-08-20.
  12. ^ Teng SC. (1996). Fungi of China (1st ed.). Ithaca, New York: Mycotaxon. p. 405. ISBN 978-0-930845-05-6.
  13. ^ Bessette AR, Bessette A, Roody WC (2000). North American Boletes: A Color Guide to the Fleshy Pored Mushrooms. Syracuse, New York: Syracuse University Press. pp. 229–30. ISBN 978-0-8156-0588-1.
  14. ^ Leonard P, Batchelor D (October 2010). "The slippery jack and how to find him: A field key to Suillus species in Australia and New Zealand" (PDF). Fungimap Newsletter (41): 4–8. Archived from the original (PDF) on 28 February 2015. Retrieved 30 September 2015.
  15. ^ Leonard P. (2012). "Fungi Key – Suillus". Queensland Mycological Society. Archived from the original on 12 August 2015. Retrieved 4 August 2015.
  16. ^ Segedin BP, Pennycook, SR (2001). "A nomenclatural checklist of agarics, boletes, and related secotioid and gasteromycetous fungi recorded from New Zealand". New Zealand Journal of Botany. 39 (2): 285–348. doi:10.1080/0028825X.2001.9512739.
  17. ^ Dickinson C, Lucas J (1982). VNR Color Dictionary of Mushrooms. New York: Van Nostrand Reinhold. p. 150. ISBN 978-0-442-21998-7.
  18. ^ Dahlberg A, Stenlid J (1994). "Size, distribution and biomass of genets in populations of Suillus bovinus (L.: Fr.) Roussel revealed by somatic incompatibility". New Phytologist. 128 (2): 225–34. doi:10.1111/j.1469-8137.1994.tb04006.x.
  19. ^ Dahlberg A, Stenlid J (1990). "Population structure and dynamics in Suillus bovinus as indicated by spatial distribution of fungal clones". New Phytologist. 115 (3): 487–93. doi:10.1111/j.1469-8137.1990.tb00475.x.
  20. ^ Lukac M, Goldbold DL (2011). Soil Ecology in Northern Forests: A Belowground View of a Changing World. Cambridge, UK: Cambridge University Press. pp. 67–69. ISBN 978-1-139-50086-9. Archived from the original on 2016-03-07. Retrieved 2015-08-14.
  21. ^ Timonen S, Jørgensen KS, Haahtela K, Sen R (1997). "Bacterial community structure at defined locations of Pinus sylvestris–Suillus bovinus and Pinus sylvestris–Paxillus involutus mycorrhizospheres in dry pine forest humus and nursery peat". Canadian Journal of Microbiology. 44 (6): 499–513. doi:10.1139/w98-035.
  22. ^ Sousa NR, Franco AR, Oliveira RS, Castro PML (2012). "Ectomycorrhizal fungi as an alternative to the use of chemical fertilisers in nursery production of Pinus pinaster". Journal of Environmental Management. 95 (Suppl. 1): S269–74. doi:10.1016/j.jenvman.2010.07.016. hdl:10400.14/5454. PMID 20702021.
  23. ^ a b Vosátka M, Rydlová J, Sudová R, Vohník M (2006). "Mycorrhizal fungi as helping agents in phytoremediation of degraded and contaminated soils". In Mackova M, Dowling DN, Macek M (eds.). Phytoremediation and Rhizoremediation. Dordrecht, Germany: Springer Science & Business Media. p. 245. ISBN 978-1-4020-4999-6.
  24. ^ Adriaensen K, Vangronsveld J, Colpaert JV (2006). "Zinc-tolerant Suillus bovinus improves growth of Zn-exposed Pinus sylvestris seedlings". Mycorrhiza. 16 (8): 553–58. doi:10.1007/s00572-006-0072-7. PMID 17033817.
  25. ^ Abuzinadah RA, Read DJ (1986). "The role of proteins in the nitrogen nutrition of ectomycorrhizal plants. I. Utilization of peptides and proteins by ectomycorrhizal fungi". New Phytologist. 103 (3): 481–93. doi:10.1111/j.1469-8137.1986.tb02886.x. JSTOR 2434461.
  26. ^ a b Olsson PA, Munzenberger B, Mahmood S, Erland S (2000). "Molecular and anatomical evidence for a three-way association between Pinus sylvestris and the ectomycorrhizal fungi Suillus bovinus and Gomphidius roseus". Mycological Research (Submitted manuscript). 104 (11): 1372–78. doi:10.1017/S0953756200002823.
  27. ^ Volgmayr H, Krisai-Greilhuber I (1996). "Dicranophora fulva, a rare mucoraceous fungus growing on boletes". Mycological Research. 100 (5): 583–90. doi:10.1016/S0953-7562(96)80012-8. Open access icon
  28. ^ Jordan P. (2015). Field Guide to Edible Mushrooms of Britain and Europe. London, United Kingdom: Bloomsbury Publishing. p. 99. ISBN 978-1-4729-2085-0.
  29. ^ Ognev SI. (1966) [1940]. Mammals of the U.S.S.R. and Adjacent Countries. Vol. IV. Rodents. Jerusalem: Israel Program for Scientific Translations. pp. 314–15. Archived from the original on 2016-03-06. Retrieved 2018-02-20.
  30. ^ Hackman W, Meinander M (1979). "Diptera feeding as larvae on macrofungi in Finland" (PDF). Annales Zoologici Fennici. 16: 50–83 (see pp. 55–56). Archived (PDF) from the original on 2015-11-17. Retrieved 2015-11-15.

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