Tropicoporus tropicalis: Difference between revisions
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''[[Tropicoporus]] tropicalis'' is part of the ''[[Hymenochaetaceae]]'' family, and was recently renamed to ''[[Tropicoporus]] tropicalis'' from ''[[Inonotus]] tropicalis'', which is part of the ''[[Inonotus]]'' clade B. |
''[[Tropicoporus]] tropicalis'' is part of the ''[[Hymenochaetaceae]]'' family, and was recently renamed to ''[[Tropicoporus]] tropicalis'' from ''[[Inonotus]] tropicalis'', which is part of the ''[[Inonotus]]'' clade B.<ref name=zhou2015 /> ''[[Tropicoporus]] tropicalis'' is a wood-decaying [[basidiomycetes]] that rarely causes disease in animals and human, and is commonly found in humid climate such as Brazil.<ref name=chowdhary2014 /><ref name=simone2010 /><ref name=ribas2015 /><ref name=nguyen2009 /><ref name=sutton2005 /> In its natural environment, the fungus is associated with [[wood-decay fungus|white rot]] woody [[flowering plant|angiosperms]], and has its annual [[fruiting body]] on tree trunks and branches.<ref name=simone2010 /> ''[[Tropicoporus]] tropicalis'' has two kinds of [[hypha|hyphae]] (a [[hypha|dimitic hyphal]] system), generative and skeletal, that lack [[clamp connections]].<ref name=simone2010 /><ref name=santana2015 /><ref name=larsen1988 /><ref name=chowdhary2014 /> |
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==Taxonomy, classification, and phylogeny== |
==Taxonomy, classification, and phylogeny== |
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The earliest record of ''[[Tropicoporus]] tropicalis'' is by the name ''[[Perenniporia|Poria]] rickii'', which is then modified into ''[[Phellinus]] rickii'', and then renamed to ''[[Phellinus]] tropicalis''. |
The earliest record of ''[[Tropicoporus]] tropicalis'' is by the name ''[[Perenniporia|Poria]] rickii'', which is then modified into ''[[Phellinus]] rickii'', and then renamed to ''[[Phellinus]] tropicalis''.<ref name=larsen1988 /> However, it is later suggested that ''[[Phellinus]] tropicalis'' should belong to one of the ''[[sensu|Inonotus sensu stricto]]'' clade after phylogenetic analysis of the fungus's [[ribosomal DNA|rDNA]] nuclear LSU sequence.<ref name=wagner2002 /> The name ''[[Inonotus]] rickii'' was also used to describe this fungus, and it is also a specie of ''[[sensu|Inonotus sensu stricto]]''.<ref name="gottlieb 2002" /> |
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The genus ''[[Inonotus]]'' contains at least three clades (A, B, and C), and Clade B and C have species from the ''[[Inonotus]] linteus'' complex, which was transferred from ''[[sensu|Inonotus sensu stricto]]''. |
The genus ''[[Inonotus]]'' contains at least three clades (A, B, and C), and Clade B and C have species from the ''[[Inonotus]] linteus'' complex, which was transferred from ''[[sensu|Inonotus sensu stricto]]''.<ref name=zhou2015 /><ref name=santana2015 /> However, the ''[[Inonotus]] linteus'' complex is later divided into ''[[Sanghuangporus]]'' and ''[[Tropicoporus]]''.<ref name=zhou2015 /> After the transfer from ''[[sensu|Inonotus sensu stricto]]'' to ''[[Inonotus]] linteus'', and then to ''[[Tropicoporus]]'', the fungus is currently named as ''[[Tropicoporus]] tropicalis''.<ref name=zhou2015 /> |
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==Description and characteristics== |
==Description and characteristics== |
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''[[Tropicoporus]] tropicalis'' is a fungus with the growth characteristics of being appressed, short-downy, homogeneous, adherent, even margins, indistinct, and odourless. |
''[[Tropicoporus]] tropicalis'' is a fungus with the growth characteristics of being appressed, short-downy, homogeneous, adherent, even margins, indistinct, and odourless.<ref name=larsen1988 /> It is also woolly and yellowish-orange colonies,<ref name=chowdhary2014 /> with annual [[fruiting bodies]] and [[hypha|dimitic hyphal]] system,<ref name=wagner2002 /> which refers to the appearance of two kinds of [[hypha|hyphae]]: generative (2.5 – 4 ɥm in diameter, thin-walled, simple-[[septate]], and pale yellowish brown), and skeletal (3.5 – 4.5 ɥm in diameter, thick-walled, infrequently simple-[[septate]], and dull yellowish brown).<ref name=larsen1988 /><ref name=santana2015 /><ref name=simone2010 /> Moreover, the fungus lacks [[seta|setal]] [[hypha|hyphae]] and [[clamp connections]] in its [[hypha|hyphae]], which is either thin or thick walled.<ref name=chowdhary2014 /><ref name=santana2015 /> However, it has numerous reddish brown [[hymenium|Hymenial]] [[seta|setae]] that has a maximum length of 25 ɥm,<ref name=santana2015 /><ref name="gottlieb 2002" /> and has dull brown pores that becomes whiter near the margin.<ref name=larsen1988 /><ref name="gottlieb 2002" /> The [[Basidiocarp]] of ''[[Tropicoporus]] tropicalis'' is annual, [[resupination|resupinate]], and [[hyaline]].<ref name=zhou2015 /><ref name=santana2015 /> The abundant fungal spores are coloured yellowish to [[ochre|ochraceous]], and shaped ovoid to broadly ellipsoid and smooth when mature.<ref name="gottlieb 2002" /> Both the spores (7 - 9 per mm) and the [[basidiospore|basidiospores]] are small, with [[basidiospore|basidiospores]] having more than 3.5 um wide when it is ellipsoid, and are less than 3.5 um wide when it is sub-[[sphere|globose]].<ref name=zhou2015 /><ref name=santana2015 /> |
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==Physiology== |
==Physiology== |
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The fungus grows: |
The fungus grows: |
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*Moderately rapid in [http://www.thermoscientific.com/content/dam/tfs/SDG/MBD/MBD%20Documents/Instructions%20For%20Use/Prepared%20Media/IFU1565.pdf MEA (Malt Extract Agar)] |
*Moderately rapid in [http://www.thermoscientific.com/content/dam/tfs/SDG/MBD/MBD%20Documents/Instructions%20For%20Use/Prepared%20Media/IFU1565.pdf MEA (Malt Extract Agar)]<ref name=larsen1988 /> |
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*In 0.05% [[cycloheximide]] |
*In 0.05% [[cycloheximide]]<ref name="chowdhary2014" /> |
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The mat diameter of the fungus depends on temperature, but the optimal growth temperature is around 36°C, and the maximum temperature without growth (not killed) is 44°C. |
The mat diameter of the fungus depends on temperature, but the optimal growth temperature is around 36°C, and the maximum temperature without growth (not killed) is 44°C.<ref name=larsen1988 /> Even though all parts of the fungus could be darkened by 2% [[Potassium hydroxide|KOH]], only the [[hypha|hyphae]] can be stained by [[phloxine]], a reddish dye.<ref name=larsen1988 /> Furthermore, ''[[Tropicoporus]] tropicalis'' is also found to be highly resistant to [[caspofungin]] and [[posaconazole]], two different anti-fungal compounds.<ref name="chowdhary2014" /> |
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==Ecology and habitat== |
==Ecology and habitat== |
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''[[Tropicoporus]] tropicalis'' is a [[polypore|poroid]] wood-decaying [[basidiomycota|basidiomycete]] |
''[[Tropicoporus]] tropicalis'' is a [[polypore|poroid]] wood-decaying [[basidiomycota|basidiomycete]]<ref name=simone2010 /><ref name=ribas2015 /> that is usually associated with [[wood-decay fungus|white rot]] woody [[flowering plant|angiosperms]],<ref name=chowdhary2014 /> grow on deciduous wood,<ref name=nguyen2009 /> and have [[fruiting body]] on infected tree trunks and branches.<ref name=simone2010 /> It is mainly found in the [[tropics|tropical zone]]<ref name=zhou2015 /> and humid climate<ref name=nguyen2009 />, such as Brazil; but is present in Mississippi, Flordia, Georgia, Jamaica, Guadeloupe, Costa Rica, Colombia, East Africa, and Malaya, Johore, and Mawaii Malaysia.<ref name=sutton2005 /> |
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==Diseases== |
==Diseases== |
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''[[Tropicoporus]] tropicalis'' rarely causes diseases in animals and human. |
''[[Tropicoporus]] tropicalis'' rarely causes diseases in animals and human.<ref name=chowdhary2014 /> However, it is an [[opportunistic pathogen]] that has the potential to induce allergic and invasive diseases in mammals.<ref name=chowdhary2014 /> |
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===Animal=== |
===Animal=== |
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The fungus has been recorded to cause fungal [[pericardial effusion]] and [[myocarditis]] in a French bulldog, that was under immunosuppressive therapy (specie was non-pigmented, and has indication of a [[hyalohyphomycosis]] infection) |
The fungus has been recorded to cause fungal [[pericardial effusion]] and [[myocarditis]] in a French bulldog, that was under immunosuppressive therapy (specie was non-pigmented, and has indication of a [[hyalohyphomycosis]] infection)<ref name=ribas2015 />; and induced a [[granulomatous]] [[mediastinal tumor|mediastinal mass]] in an immunocompromised Irish Wolfhound dog.<ref name=sheppard2013 /> |
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===Human=== |
===Human=== |
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The first association of an invasive infection on human occurred on a patient with [[chronic condition|chronic]] [[granulomatous disease]]. |
The first association of an invasive infection on human occurred on a patient with [[chronic condition|chronic]] [[granulomatous disease]].<ref name=sutton2005 /><ref name=davis2007 /> In addition, two similar [[chronic condition|chronic]] [[granulomatous disease]] cases of ''I. tropicalis'' infection were later found in immunodeficient children and adults that had caused [[osteomyelitis]].<ref name=nguyen2009 /> |
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==References== |
==References== |
Revision as of 22:48, 4 November 2016
Tropicoporus tropicalis | |
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Scientific classification | |
Kingdom: | |
Division: | |
Class: | |
Order: | |
Family: | |
Genus: | Tropicoporus
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Species: | T. tropicalis
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Binomial name | |
Tropicoporus tropicalis L.W.Zhou et al (2015)
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Synonyms | |
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Tropicoporus tropicalis is part of the Hymenochaetaceae family, and was recently renamed to Tropicoporus tropicalis from Inonotus tropicalis, which is part of the Inonotus clade B.[1] Tropicoporus tropicalis is a wood-decaying basidiomycetes that rarely causes disease in animals and human, and is commonly found in humid climate such as Brazil.[2][3][4][5][6] In its natural environment, the fungus is associated with white rot woody angiosperms, and has its annual fruiting body on tree trunks and branches.[3] Tropicoporus tropicalis has two kinds of hyphae (a dimitic hyphal system), generative and skeletal, that lack clamp connections.[3][7][8][2]
Taxonomy, classification, and phylogeny
The earliest record of Tropicoporus tropicalis is by the name Poria rickii, which is then modified into Phellinus rickii, and then renamed to Phellinus tropicalis.[8] However, it is later suggested that Phellinus tropicalis should belong to one of the Inonotus sensu stricto clade after phylogenetic analysis of the fungus's rDNA nuclear LSU sequence.[9] The name Inonotus rickii was also used to describe this fungus, and it is also a specie of Inonotus sensu stricto.[10]
The genus Inonotus contains at least three clades (A, B, and C), and Clade B and C have species from the Inonotus linteus complex, which was transferred from Inonotus sensu stricto.[1][7] However, the Inonotus linteus complex is later divided into Sanghuangporus and Tropicoporus.[1] After the transfer from Inonotus sensu stricto to Inonotus linteus, and then to Tropicoporus, the fungus is currently named as Tropicoporus tropicalis.[1]
Description and characteristics
Tropicoporus tropicalis is a fungus with the growth characteristics of being appressed, short-downy, homogeneous, adherent, even margins, indistinct, and odourless.[8] It is also woolly and yellowish-orange colonies,[2] with annual fruiting bodies and dimitic hyphal system,[9] which refers to the appearance of two kinds of hyphae: generative (2.5 – 4 ɥm in diameter, thin-walled, simple-septate, and pale yellowish brown), and skeletal (3.5 – 4.5 ɥm in diameter, thick-walled, infrequently simple-septate, and dull yellowish brown).[8][7][3] Moreover, the fungus lacks setal hyphae and clamp connections in its hyphae, which is either thin or thick walled.[2][7] However, it has numerous reddish brown Hymenial setae that has a maximum length of 25 ɥm,[7][10] and has dull brown pores that becomes whiter near the margin.[8][10] The Basidiocarp of Tropicoporus tropicalis is annual, resupinate, and hyaline.[1][7] The abundant fungal spores are coloured yellowish to ochraceous, and shaped ovoid to broadly ellipsoid and smooth when mature.[10] Both the spores (7 - 9 per mm) and the basidiospores are small, with basidiospores having more than 3.5 um wide when it is ellipsoid, and are less than 3.5 um wide when it is sub-globose.[1][7]
Physiology
The fungus grows:
- Moderately rapid in MEA (Malt Extract Agar)[8]
- In 0.05% cycloheximide[2]
The mat diameter of the fungus depends on temperature, but the optimal growth temperature is around 36°C, and the maximum temperature without growth (not killed) is 44°C.[8] Even though all parts of the fungus could be darkened by 2% KOH, only the hyphae can be stained by phloxine, a reddish dye.[8] Furthermore, Tropicoporus tropicalis is also found to be highly resistant to caspofungin and posaconazole, two different anti-fungal compounds.[2]
Ecology and habitat
Tropicoporus tropicalis is a poroid wood-decaying basidiomycete[3][4] that is usually associated with white rot woody angiosperms,[2] grow on deciduous wood,[5] and have fruiting body on infected tree trunks and branches.[3] It is mainly found in the tropical zone[1] and humid climate[5], such as Brazil; but is present in Mississippi, Flordia, Georgia, Jamaica, Guadeloupe, Costa Rica, Colombia, East Africa, and Malaya, Johore, and Mawaii Malaysia.[6]
Diseases
Tropicoporus tropicalis rarely causes diseases in animals and human.[2] However, it is an opportunistic pathogen that has the potential to induce allergic and invasive diseases in mammals.[2]
Animal
The fungus has been recorded to cause fungal pericardial effusion and myocarditis in a French bulldog, that was under immunosuppressive therapy (specie was non-pigmented, and has indication of a hyalohyphomycosis infection)[4]; and induced a granulomatous mediastinal mass in an immunocompromised Irish Wolfhound dog.[11]
Human
The first association of an invasive infection on human occurred on a patient with chronic granulomatous disease.[6][12] In addition, two similar chronic granulomatous disease cases of I. tropicalis infection were later found in immunodeficient children and adults that had caused osteomyelitis.[5]
References
- ^ a b c d e f g Zhou, Li-Wei; Vlasák, Josef; Decock, Cony; Assefa, Addisu; Stenlid, Jan; Abate, Dawit; Wu, Sheng-Hua; Dai, Yu-Cheng (26 April 2015). "Global diversity and taxonomy of the Inonotus linteus complex (Hymenochaetales, Basidiomycota): Sanghuangporus gen. nov., Tropicoporus excentrodendri and T. guanacastensis gen. et spp. nov., and 17 new combinations". Fungal Diversity. doi:10.1007/s13225-015-0335-8.
- ^ a b c d e f g h i Chowdhary, A.; Kathuria, S.; Agarwal, K.; Meis, J. F. (8 September 2014). "Recognizing filamentous basidiomycetes as agents of human disease: A review". Medical Mycology. 52 (8): 782–797. doi:10.1093/mmy/myu047.
- ^ a b c d e f De Simone, Daniele; D’Amico, Lorella; Bressanin, Daniela; Motta, Emma; Annesi, Tiziana (17 August 2010). "Molecular characterization of Inonotus rickii /Ptychogaster cubensis isolates from different geographic provenances". Mycological Progress. 10 (3): 301–306. doi:10.1007/s11557-010-0702-5.
- ^ a b c Ribas, Thibault; Pipe-Martin, Hannah; Kim, Kenneth S.; Leissinger, Mary K.; Bauer, Rudy W.; Grasperge, Britton J.; Grooters, Amy M.; Sutton, Deanna A.; Pariaut, Romain (June 2015). "Fungal myocarditis and pericardial effusion secondary to Inonotus tropicalis (phylum Basidiomycota) in a dog". Journal of Veterinary Cardiology. 17 (2): 142–148. doi:10.1016/j.jvc.2015.01.004.
- ^ a b c d Nguyen, D.K.; Davis, C.M.; Chinen, J.; Vallejo, J.G.; Noroski, L.M. (February 2009). "Basidiomycetous Inonotus (Phellinus) tropicalis Osteomyelitis in Pediatric and Adult X-linked Chronic Granulomatous Disease". Journal of Allergy and Clinical Immunology. 123 (2): S13 – S13. doi:10.1016/j.jaci.2008.12.060.
- ^ a b c Sutton, D. A.; Thompson, E. H.; Rinaldi, M. G.; Iwen, P. C.; Nakasone, K. K.; Jung, H. S.; Rosenblatt, H. M.; Paul, M. E. (4 February 2005). "Identification and First Report of Inonotus (Phellinus) tropicalis as an Etiologic Agent in a Patient with Chronic Granulomatous Disease". Journal of Clinical Microbiology. 43 (2): 982–987. doi:10.1128/JCM.43.2.982-987.2005.
- ^ a b c d e f g Campos-Santana, Marisa De; Robledo, Gerardo; Decock, Cony; Silveira, Rosa Mara Borges Da (March 2015). "Diversity of the Poroid Hymenochaetaceae (Basidiomycota) from the Atlantic Forest and Pampa in Southern Brazil". Cryptogamie, Mycologie. 36 (1): 43–78. doi:10.7872/crym.v36.iss1.2015.43.
- ^ a b c d e f g h Larsen, Michael J.; Lombard, Frances F. (January 1988). "Studies in the Genus Phellinus. I. The Identity of Phellinus rickii with Notes on Its Facultative Synonyms". Mycologia. 80 (1): 72. doi:10.2307/3807495.
- ^ a b Wagner, T; Fischer, M (2002). "Proceedings towards a natural classification of the worldwide taxa Phellinus s.l. and Inonotus s.l., and phylogenetic relationships of allied genera". Mycologia. 94 (6): 998–1016. PMID 21156572.
- ^ a b c d Gottlieb, Alexandra M.; Wright, Jorge E.; Moncalvo, Jean-Marc (August 2002). "Inonotus s. l. in Argentina — Morphology, cultural characters and molecular analyses". Mycological Progress. 1 (3): 299–313. doi:10.1007/s11557-006-0028-5.
- ^ Sheppard, B. J.; McGrath, E.; Giuffrida, M.; Craft, S. L. M.; Kung, C. Y.; Smith, M. E. (8 August 2013). "Report of wood decay fungus Inonotus tropicalis (phylum Basidiomycota) from a dog with a granulomatous mediastinal mass". Journal of Veterinary Diagnostic Investigation. 25 (5): 566–572. doi:10.1177/1040638713499341.
- ^ Davis, CM; Noroski, LM; Dishop, MK; Sutton, DA; Braverman, RM; Paul, ME; Rosenblatt, HM (July 2007). "Basidiomycetous fungal Inonotus tropicalis sacral osteomyelitis in X-linked chronic granulomatous disease". The Pediatric infectious disease journal. 26 (7): 655–6. PMID 17596815.