Sirobasidium

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Sirobasidium
Sirobasidium magnum 225759797.jpg
Sirobasidium magnum
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Fungi
Division: Basidiomycota
Class: Tremellomycetes
Order: Tremellales
Family: Sirobasidiaceae
Genus: Sirobasidium
Lagerh. & Pat. (1892)
Type species
Sirobasidium sanguineum
Lagerh. & Pat. (1892)
Species

Sirobasidium albidum
Sirobasidium apiculatum
Sirobasidium brefeldianum
Sirobasidium japonicum
Sirobasidium magnum
Sirobasidium minutum
Sirobasidium rubrofuscum
Sirobasidium sandwicense
Sirobasidium sanguineum

Contents

Sirobasidium is a genus of fungi in the order Tremellales. Basidiocarps (fruit bodies) are gelatinous and appear to be parasitic on ascomycetous fungi on wood. Microscopically they are distinguished by producing septate basidia in chains which give rise to deciduous sterigmata. Species are distributed worldwide.

Taxonomy

Sirobasidium was introduced in 1892 by Swedish mycologist Gustaf Lagerheim and French mycologist Narcisse Patouillard for two fungi collected in Ecuador that possessed distinctive, catenulate, tremelloid basidia (septate basidia formed in chains). Subsequent authors added further species with similar basidia.

Molecular research, based on cladistic analysis of DNA sequences, has shown that Sirobasidium may be polyphyletic (and hence artificial), though this is based on a single culture that may be contaminated and requires further research. [1] [2]

Description

Fruit bodies are gelatinous and are variously pustular to foliose (with leaf-like or seaweed-like fronds). Colours are typically reddish, yellow, or brown.

Microscopic characters

Catenulate, septate basidia of Sirobasidium brefeldianum Sirobasidium brefeldianum 265965784.jpg
Catenulate, septate basidia of Sirobasidium brefeldianum

The basidia are "tremelloid" (globose to ellipsoid or fusiform and vertically or diagonally septate) and catenulate (formed in chains), giving rise to fusiform sterigmata or epibasidia which detach from the basidia and then produce basidiospores. These spores are smooth, globose, and germinate by hyphal tube or yeast cells. [3] [4]

Habitat and distribution

Sirobasidium species are associated with and possibly parasitic on fungi in the Diatrypaceae growing on dead attached or fallen wood, including species of Eutypa , Eutypella , and Diatrype . [4] As a group, Sirobasidium species occur worldwide, though individual species may have a more restricted distribution.


Related Research Articles

<span class="mw-page-title-main">Tremellaceae</span> Family of fungi

The Tremellaceae are a family of fungi in the order Tremellales. The family is cosmopolitan and contains both teleomorphic and anamorphic species, most of the latter being yeasts. All teleomorphs in the Tremellaceae are parasites of other fungi, though the yeast states are widespread and not restricted to hosts. Basidiocarps, when produced, are gelatinous.

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

The Auriculariales are an order of fungi in the class Agaricomycetes. Species within the order were formerly referred to the "heterobasidiomycetes" or "jelly fungi", since many have gelatinous basidiocarps that produce spores on septate basidia. Around 200 species are known worldwide, placed in six or more families, though the status of these families is currently uncertain. All species in the Auriculariales are believed to be saprotrophic, most growing on dead wood. Fruit bodies of several Auricularia species are cultivated for food on a commercial scale, especially in China.

<span class="mw-page-title-main">Auriculariaceae</span> Family of fungi

The Auriculariaceae are a family of fungi in the order Auriculariales. Species within the family were formerly referred to the "heterobasidiomycetes" or "jelly fungi", since many have gelatinous basidiocarps that produce spores on septate basidia. Around 100 species are known worldwide. All are believed to be saprotrophic, most growing on dead wood. Fruit bodies of several Auricularia species are cultivated for food on a commercial scale, especially in China.

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

The Tremellales are an order of fungi in the class Tremellomycetes. The order contains both teleomorphic and anamorphic species, most of the latter being yeasts. All teleomorphic species in the Tremellales are parasites of other fungi, though the yeast states are widespread and not restricted to hosts. Basidiocarps, when produced, are gelatinous.

<span class="mw-page-title-main">Hyaloriaceae</span> Family of fungi

The Hyaloriaceae are a family of fungi in the order Auriculariales. Species within the family have gelatinous basidiocarps that produce spores on septate basidia and, as such, were formerly referred to the "heterobasidiomycetes" or "jelly fungi". All appear to be saprotrophic, growing on dead wood or plant remains. Less than 30 species are currently included within the Hyaloriaceae, but the family has not been extensively researched.

<i>Exidia</i> Genus of fungi

Exidia is a genus of fungi in the family Auriculariaceae. The species are saprotrophic, occurring in attached or recently fallen dead wood, and produce gelatinous basidiocarps. The fruit bodies are diverse, pustular, lobed, button-shaped or cup-shaped. Several species, including the type species Exidia glandulosa, have sterile pegs or pimples on their spore-bearing surface. The genus has a cosmopolitan distribution and around 20 species are currently recognized worldwide. Initial molecular research indicates the genus is artificial.

<i>Tremella</i> Genus of fungi

Tremella is a genus of fungi in the family Tremellaceae. All Tremella species are parasites of other fungi and most produce anamorphic yeast states. Basidiocarps, when produced, are gelatinous and are colloquially classed among the "jelly fungi". Over 100 species of Tremella are currently recognized worldwide. One species, Tremella fuciformis, is commercially cultivated for food.

<i>Sebacina</i> Genus of fungi

Sebacina is a genus of fungi in the family Sebacinaceae. Its species are mycorrhizal, forming a range of associations with trees and other plants. Basidiocarps are produced on soil and litter, sometimes partly encrusting stems of living plants. The fruit bodies are cartilaginous to rubbery-gelatinous and variously effused (corticioid) to coral-shaped (clavarioid). The genus has a cosmopolitan distribution.

Colacogloea is a genus of fungi belonging to the class Microbotryomycetes. Most species in the genus are known only from their yeast states. Where known, basidiocarps have auricularioid basidia and occur as parasites on or in the fruit bodies of other fungi.

Stilbum is a genus of fungi in the family Chionosphaeraceae. Though many species were formerly referred to the genus, it is effectively monotypic since the type species, Stilbum vulgare, currently has no close relative. Stilbum vulgare forms groups of minute, gelatinous, synnema-like basidiocarps up to 0.5 mm tall with a distinct stem and inflated, fertile head. Microscopically, it produces auricularioid basidia and basidiospores that germinate by budding off yeast cells. The species has been collected on rotting wood and old agaric fruit bodies and may be a parasite of other fungi. It was originally described from Europe, but is also known from Asia, North America, and Australia.

<i>Phaeotremella</i> Genus of fungi

Phaeotremella is a genus of fungi in the family Phaeotremellaceae. All Phaeotremella species are parasites of other fungi and produce anamorphic yeast states. Basidiocarps, when produced, are gelatinous and are colloquially classed among the "jelly fungi". Fifteen or so species of Phaeotremella are currently recognized worldwide. Tremella sanguinea, shown to be a Phaeotremella species by DNA sequencing, is cultivated in China as an ingredient in traditional Chinese medicine.

<i>Naematelia</i> Genus of fungi

Naematelia is a genus of fungi in the family Naemateliaceae. All Naematelia species are parasites of other fungi and produce anamorphic yeast states. When produced, Basidiocarps ,, are gelatinous and are colloquially classed among the "jelly fungi."Four species of Naematelia are currently recognized worldwide. One species, Naematelia aurantialba, is commercially cultivated for food.

<i>Naematelia encephala</i> Species of fungus

Naematelia encephala is a species of fungus producing pink, brain-like, gelatinous basidiocarps. It is widespread in north temperate regions and is parasitic on another species of fungus that grows on dead attached and recently fallen branches of conifers. In the UK, its recommended English name is conifer brain.

Pseudotremella is a genus of fungi in the family Bulleraceae. All Pseudotremella species are parasites of other fungi and produce anamorphic yeast states. Basidiocarps, when produced, are gelatinous and are colloquially classed among the "jelly fungi". Four species of Pseudotremella are currently recognized worldwide. Two of these species are, as yet, only known from their yeast states.

Cystobasidium fimetarium is a species of fungus in the order Cystobasidiales. It is a fungal parasite forming small gelatinous basidiocarps on various ascomycetous fungi on dung. Microscopically, it has auricularioid basidia producing basidiospores that germinate by budding off yeast cells. The species is known from Europe and North America.

<i>Sirobasidium brefeldianum</i> Species of fungus


Sirobasidium brefeldianum is a species of fungus in the order Tremellales. Basidiocarps are gelatinous and appear to be parasitic on ascomycetous fungi on wood. The species was originally described from Brazil, but has also been reported from Asia and Europe.

<i>Sirobasidium magnum</i> Species of fungus


Sirobasidium magnum is a species of fungus in the order Tremellales. Basidiocarps are gelatinous, lobed to foliose (leaf-like) and appear to be parasitic on ascomycetous fungi on wood. No other Sirobasidium species has such large fruit bodies. The species was originally described from Indonesia, but has been reported from elsewhere in Asia and also in Australia and North America.

<i>Tremella iduensis</i> Species of fungus

Tremella iduensis is a species of fungus in the family Tremellaceae. It produces yellow, cornute-frondose, gelatinous basidiocarps and is parasitic on other fungi, probably species of Hypoxylon on dead attached and recently fallen branches of broad-leaved trees. It has been recorded from Japan and China. Tremella flava, described from Taiwan, may be a synonym.

<i>Tremella vesiculosa</i> Species of fungus

Tremella vesiculosa is a species of fungus in the family Tremellaceae. It produces light brown, lobed, gelatinous basidiocarps and is parasitic on other fungi on dead branches of broad-leaved trees. It was originally described from New Zealand.

Tremella samoensis is a species of fungus in the family Tremellaceae. It produces red to orange-yellow, lobed to firmly foliaceous, gelatinous basidiocarps and is parasitic on other fungi on dead branches of broad-leaved trees. It was originally described from Samoa and the Philippines, but is widely distributed in the region.

References

  1. Boekhout T, Fonseca Á, Sampaio JP, Bandoni RJ, Fell JW, Kwon-Chung KJ (2011). Chapter 100 - Discussion of teleomorphic and anamorphic basidiomycetous yeasts, in Kurtzman et al., The Yeasts (Fifth ed.). Elsevier. pp. 1339–1372. doi:10.1016/B978-0-444-52149-1.00100-2. ISBN   9780444521491.{{cite book}}: CS1 maint: multiple names: authors list (link)
  2. Yamada M, Endoh R, Masumoto H, Yoshihashi Y, Ohkuma M, Degawa Y (2022). "Taxonomic study of polymorphic basidiomycetous fungi Sirobasidium and Sirotrema: Sirobasidium apiculatum sp. nov., Phaeotremella translucens comb. nov. and rediscovery of Sirobasidium japonicum in Japan". Antonie van Leeuwenhoek. 115 (12): 1421–1436. doi:10.1007/s10482-022-01787-9. PMID   36327002. S2CID   253266990.
  3. Bandoni RJ (1957). "The spores and basidia of Sirobasidium". Mycologia. 49 (2): 250–255. doi:10.2307/3755633. JSTOR   3755633.
  4. 1 2 Dämon W, Hausknecht A (2002). "First report of a Sirobasidium species in Austria, and a survey of the Sirobasidiaceae" (PDF). Österr. Z. Pilzk. 11: 133–151.