Artist's bracket
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Polyporales
Family: Ganodermataceae
Genus: Ganoderma
Species:
G. applanatum
Binomial name
Ganoderma applanatum
Synonyms
  • Boletus applanatus
  • Elfvingia applanata
  • Fomes applanatus
  • Fomes vegetus
  • Ganoderme aplani
  • Ganoderma lipsiense
  • Polyporus applanatus
  • Polyporus vegetus
Ganoderma applanatum
View the Mycomorphbox template that generates the following list
Pores on hymenium
No distinct cap
Hymenium is decurrent
Lacks a stipe
Spore print is brown
Ecology is parasitic
Edibility is inedible

Ganoderma applanatum (the artist's bracket, artist's conk,[1] artist's fungus or bear bread) is a bracket fungus with a cosmopolitan distribution.

Description

This fungus is parasitic and saprophytic,[2] and grows as a mycelium within the wood of living and dead trees. The Ganoderma applanatum grows in single, scattered, or compound formations.[2] It forms fruiting bodies that are 3–30 cm wide × 5–50 cm long × 1–10 cm thick,[1] hard as leather, woody-textured, and inedible.[3] They are white at first but soon turn dark red-brown. The upper surface of the fruiting body is covered with reddish brown conidia. Brown spores are released from the pores on the underside of the fruiting body. The spores are highly concentrated, and as many as 4.65 billion spores can be dispersed from a 10 cm by 10 cm section of the conk within 24 hours.[4] The tubes are 4–12 mm deep and terminate in pores that are round with 4–6 per millimetre.[1] The fruiting bodies are perennial, and may persist for multiple years, increasing in size and forming new layers of pores as they grow. These layers can be distinguished in a cross section or from observation of the concentric rings on the upper surface of the fruiting body.[5] This allows the fruiting body's age to be determined using the same method as tree rings.

Ganoderma applanatum is a wood-decay fungus, causing a rot of heartwood in a variety of trees. It can also grow as a pathogen of live sapwood, particularly on older trees that are sufficiently wet. It is a common cause of decay and death of beech and poplar, and less often of several other tree genera, including alder, apple, elm, buckeye and horse chestnut, maple, oak, live oak, walnut, willow, western hemlock, Douglas fir, old or sick olive tree, and spruce. G. applanatum grows more often on dead trees than living ones.[6]

Similar species

The similar Ganoderma brownii has thicker, darker flesh, often a yellow pore surface, and larger spores than G. applanatum.[1] G. oregonense, G. lucidum,[2] and Fomitopsis pinicola are also similar.[7]

Uses

A drawing on the lower side of the sporocarp of G. applanatum

A peculiarity of this fungus lies in its use as a drawing medium for artists.[8] When the fresh white pore surface is rubbed or scratched with a sharp implement, dark brown tissue under the pores is revealed, resulting in visible lines and shading that become permanent once the fungus is dried. This practice is what gives the Ganoderma applanatum its common name.[4][6]

G. applanatum is a medicinal farming crop that is used as a flavor enhancer in Asian cuisine. G. applanatum is non-digestible in its raw form,[2] but is considered edible when cooked. Hot herbal soups, or fermentation in lemon acid with onion is a common use for cooking with G. applanatum slices as an umami flavor enhancer in fermented foods. G. applanatum can also be used in tea.

Ganoderma applanatum is known in Japan as kofuki-saru-no-koshikake (コフキサルノコシカケ),[9][10] literally meaning "powder-covered monkey's bench", and in China as shu-she-ling-zhi (树舌灵芝), where it has long been used in traditional medicines.[11] Studies have shown Ganoderma applanatum contains compounds with potent anti-tumor,[12][13][14] antibacterial[15][16] anti-fibrotic[17] properties.

Ganoderma Applanatum has been used to produce amadou, even though Fomes fomentarius is most commonly associated with the production of amadou.[18] Amadou is a leathery, easily flammable material that is produced from different polypores, but can also be consist of similar material.[19] Amadou generally has three areas of use: fire making, medicinal,[20] and clothing,[21][19] however, it is mostly associated with fire making.[22][23]

Medicinal uses

Medicinal use of Ganoderma Applanatum has been extensive throughout thousands of years.[24] In Chinese medicine this fungus has been used to treat rheumatic tuberculosis and esophageal carcinoma. It has also been used more commonly to resolve indigestion, relieve pain and reduce phlegm.[25] Further studies have shown that its medicinal qualities also include anti-tumor, anti-oxidation and as a regulator for body immunity.[24]

Ganoderma Applanatum is generally studied from three angles: medicinal, phytopathological, and biotechnological.[26] Medicinal fungi such as G. applanatum are of special interest due to their antibiotic properties. Methanol extracts from G. applanatum have shown that the fatty acids present, such as palmitic acid, show antibacterial properties.[27] Compared to synthetic antibiotics these compounds extracted from G. applanatum lack problems of drug resistance and side effects.[27]

Fungivory

There are anecdotal references of higher primates consuming this fungus for self-medication.[28][2]

In the book Gorillas in the Mist Dian Fossey writes the following about gorillas eating Ganoderma applanatum:

Still another special food (for the gorillas) is bracket fungus (Ganoderma applanatum)... The shelflike projection is difficult to break free, so younger animals often have to wrap their arms and legs awkwardly around a trunk and content themselves by only gnawing at the delicacy. Older animals who succeed in breaking the fungus loose have been observed carrying it several hundred feet from its source, all the while guarding it possessively from more dominant individuals' attempts to take it away. Both the scarcity of the fungus and the gorillas' liking of it cause many intragroup squabbles, a number of which are settled by the silverback, who simply takes the item of contention for himself.[29]

Larval galls (black objects) of Agathomyia wankowiczii on an artist's bracket fungus

The midge Agathomyia wankowiczii lays its eggs on the fruiting body of the fungus, forming galls.[30] Female forked fungus beetles, Bolitotherus cornutus lay their eggs on the surface of the fruiting bodies and the larvae live inside of the fruiting bodies of Ganoderma applanatum and a few other bracket fungi.[31] Meanwhile, the fly Hirtodrosophila mycetophaga courts and mates entirely on the underside of dark fungi.[32]

See also

References

  1. 1 2 3 4 Ginns, James (2017). Polypores of British Columbia (Fungi: Basidiomycota). Victoria, BC: Province of British Columbia - Forests, Lands, and NR Operations. p. 105. ISBN 978-0-7726-7053-3.
  2. 1 2 3 4 5 Goldman, Gary B. (2019). Field guide to mushrooms & other fungi in South Africa. Marieka Gryzenhout. Cape Town, South Africa. ISBN 978-1-77584-654-3. OCLC 1117322804.{{cite book}}: CS1 maint: location missing publisher (link)
  3. ↑ Meuninck, Jim (2017). Foraging Mushrooms Oregon: Finding, Identifying, and Preparing Edible Wild Mushrooms. Falcon Guides. p. 46. ISBN 978-1-4930-2669-2.
  4. 1 2 "White Mottled Rot" (PDF). Fs.usda.gov. Retrieved 2022-03-21.
  5. ↑ Atkinson, George Francis (1901). Studies of American fungi. Mushrooms, edible, poisonous, etc. Ithaca, NY: Andrus & Church. doi:10.5962/bhl.title.120494.
  6. 1 2 Biek, David (1984). The mushrooms of northern California. Redding, CA: Spore Prints. ISBN 0-9612020-0-9. OCLC 10870632.
  7. ↑ Davis, R. Michael; Sommer, Robert; Menge, John A. (2012). Field Guide to Mushrooms of Western North America. Berkeley: University of California Press. p. 348. ISBN 978-0-520-95360-4. OCLC 797915861.
  8. ↑ "Ganoderma applanatum: The Artist's Conk". The Fungal Kingdom. 2015-01-12. Archived from the original on 2015-01-12. Retrieved 2021-10-27.
  9. ↑ "kofuki- saru-no-koshikake (コフキサルノコシカケ)". Flora of Mikawa. Retrieved 3 March 2016.
  10. ↑ Mizuno, Takashi (1995). "Sarunokoshikake: Polyporaecea fungi‐kofukisarunokoshikake, ganoderma applanatum and tsugasarunokoshikake, fomitopsis pinicola". Food Reviews International. 11: 129–133. doi:10.1080/87559129509541023.
  11. ↑ "About Asian Anti-Cancer Materia Database". Asiancancerherb.info.
  12. ↑ MIZUNO, TAKASHI; et al. "Isolation and characterization of antitumor active β-d-glucans from the fruit bodies of Ganoderma applanatum". Elsevier Science Publishers B.V., Amsterdam - Printed in The Netherlands. Archived from the original on 8 March 2016. Retrieved 3 March 2016.
  13. ↑ Taichi Usui; et al. (2014). "Antitumor Activity of Water-Soluble β-D-Glucan Elaborated by Ganoderma applanatum". Agricultural and Biological Chemistry. 45: 323–326. doi:10.1080/00021369.1981.10864512.
  14. ↑ Chairul; Tokuyama, Takashi; Hayashi, Yoshinori; Nishizawa, Mugio; Tokuda, Harukuni; Chairul, Sofni M.; Hayashi, Yuji (26 March 1991). "Applanoxidic acids A, B, C and D, biologically active tetracyclic triterpenes from Ganoderma applanatum". Phytochemistry. 30 (12): 4105–4109. Bibcode:1991PChem..30.4105C. doi:10.1016/0031-9422(91)83476-2.
  15. ↑ Smania, Jr; Monache, Franco Delie; Smania, Elza de Fatima Albino; Cuneo, Rodrigo S. (1999). "Antibacterial Activity of Steroidal Compounds Isolated from Ganoderma applanatum". International Journal of Medicinal Mushrooms. 1, 1999 Issue 4 (4): 325–330. doi:10.1615/IntJMedMushr.v1.i4.40.
  16. ↑ Osińska-Jaroszuk, Monika; Jaszek, Magdalena; Mizerska-Dudka, Magdalena; Błachowicz, Adriana; Rejczak, Tomasz Piotr; Janusz, Grzegorz; Wydrych, Jerzy; Polak, Jolanta; Jarosz-Wilkołazka, Anna; Kandefer-Szerszeń, Martyna (July 2014). "Exopolysaccharide from Ganoderma applanatum as a Promising Bioactive Compound with Cytostatic and Antibacterial Properties". BioMed Research International. 2014: 743812. doi:10.1155/2014/743812. PMC 4120920. PMID 25114920.
  17. ↑ Luo, Q; Di, L; Dai, WF; Lu, Q; Yan, YM; Yang, ZL; Li, RT; Cheng, YX (February 23, 2015). "Applanatumin A, a new dimeric meroterpenoid from Ganoderma applanatum that displays potent antifibrotic activity". Org. Lett. 17 (5): 1110–3. doi:10.1021/ol503610b. PMID 25706347.
  18. ↑ Sundström, Lisa. "Fnöske - Naturhistoriska riksmuseet". Nrm.se (in Swedish). Retrieved 2021-11-08.
  19. 1 2 "fnöske | SAOB" (in Swedish). Retrieved 2021-11-08.
  20. ↑ Molitoris, H. P. (1994-04-01). "Mushrooms in medicine". Folia Microbiologica. 39 (2): 91–98. doi:10.1007/BF02906801. ISSN 1874-9356. PMID 7959435. S2CID 19354468.
  21. ↑ Sundström, Lisa. "Fnösktickan, Fomes fomentarius, och dess användningsområden". Nrm.se (in Swedish). Retrieved 2021-11-08.
  22. ↑ "Göra eld med fnöske" (PDF). Bioresurs.uu.se. Archived (PDF) from the original on 21 December 2014.
  23. ↑ Nationalencyklopedin 1991 (in Swedish). 1991. p. 450.
  24. 1 2 Elkhateeb, Waill A.; Zaghlol, Gihan M.; El-Garawani, Islam M.; Ahmed, Eman F.; Rateb, Mostafa E.; Abdel Moneim, Ahmed E. (2018-05-01). "Ganoderma applanatum secondary metabolites induced apoptosis through different pathways: In vivo and in vitro anticancer studies". Biomedicine & Pharmacotherapy. 101: 264–277. doi:10.1016/j.biopha.2018.02.058. ISSN 0753-3322. PMID 29494964. S2CID 4639322.
  25. ↑ Moradali, Mohammad-Fata; Mostafavi, Hossien; Hejaroude, Ghorban-Ali; Tehrani, Abbas Sharifi; Abbasi, Mehrdad; Ghods, Shirin (2006). "Investigation of Potential Antibacterial Properties of Methanol Extracts from Fungus Ganoderma applanatum". Chemotherapy. 52 (5): 241–244. doi:10.1159/000094866. PMID 16899973. S2CID 24881421.
  26. ↑ Ćilerdžić, Jasmina; Stajić, Mirjana; Vukojević, Jelena (2016-10-01). "Degradation of wheat straw and oak sawdust by Ganoderma applanatum". International Biodeterioration & Biodegradation. 114: 39–44. doi:10.1016/j.ibiod.2016.05.024. ISSN 0964-8305.
  27. 1 2 Moradali M, -F, Mostafavi H, Hejaroude G, -A, Tehrani A, S, Abbasi M, Ghods S: Investigation of Potential Antibacterial Properties of Methanol Extracts from Fungus <i>Ganoderma applanatum</i>. Chemotherapy 2006;52:241-244. doi: 10.1159/000094866
  28. ↑ COUSINS, Don; HUFFMAN, Michael A. (June 2002). "MEDICINAL PROPERTIES IN THE DIET OF GORILLAS" (PDF). African Study Monographs. 23 (2): 71. doi:10.14989/68214. S2CID 52244011.
  29. ↑ Fossey, Dian (1983). Gorillas in the Mist. Mariner Books. p. 52. ISBN 9780395282175.
  30. ↑ Brian Spooner; Peter Roberts (1 April 2005). Fungi. Collins. p. 126. ISBN 978-0-00-220152-0. Retrieved 31 January 2012.
  31. ↑ Liles, M.P. (1956). "A study of the life history of the forked fungus beetle, Bolitotherus cornutus". Ohio J Sci. 56: 329–337. hdl:1811/4397/V56N06_329.pdf.
  32. ↑ "The Evolutionary Biology of Colonizing Species - PDF Free Download". Epdf.pub. Retrieved 2019-11-18.
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