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Tremella yokohamensis

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Species of fungus

Tremella yokohamensis
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Fungi
Division: Basidiomycota
Class: Tremellomycetes
Order: Tremellales
Family: Tremellaceae
Genus: Tremella
Species: T. yokohamensis
Binomial name
Tremella yokohamensis
(Alshahni, Satoh & Makimura) Yurkov (2015)
Synonyms
  • Cryptococcus yokohamensis Alshahni, Satoh & Makimura (2011)

Tremella yokohamensis is a species of fungus in the family Tremellaceae. It produces white, foliaceous, gelatinous basidiocarps (fruit bodies) and is parasitic on other fungi on dead wood of broad-leaved trees. It was originally described from Japan.

Taxonomy

Tremella yokohamensis was first published in 2011 as a yeast, Cryptococcus yokohamensis, isolated from Eucalyptus bark (and a koala) in a Japanese zoo. Molecular research, based on cladistic analysis of DNA sequences, showed that the yeast was closely related to the type species of Tremella and in 2015 the species was accordingly recombined as Tremella yokohamensis. Subsequently, a fruit body collected in the Russian Far East was found to have identical DNA, enabling a more complete description of the fungus.

Description

Fruit bodies are gelatinous, white, up to 40 mmm across, and foliaceous. Microscopically, the basidia are tremelloid (ellipsoid, with oblique to vertical septa), 4-celled, stalked, 18 to 21 by 9.5 to 10.5 μm. The basidiospores are ellipsoid, smooth, 8 to 10.5 by 5.5 to 7 μm.

Similar species

Fruit bodies of Tremella fuciformis are of similar shape and colour, but can be distinguished microscopically by having basidia that are unstalked and slightly smaller, producing smaller basidiospores (5 to 8 μm by 4 to 6 μm).

Habitat and distribution

Tremella yokohamensis is a parasite on lignicolous fungi, but its host is unknown. It was originally isolated from the trunk of a Eucalyptus tree and subsequently found on decaying wood of a deciduous tree.

The species was originally isolated as a yeast in Japan and as a basidiocarp in the Russian Far East (Primorye Territory).

References

  1. ^ Alshahni MM, Makimura K, Satoh K, Nishiyama Y, Kido N, Sawada T (2011). "Cryptococcus yokohamensis sp. nov., a basidiomycetous yeast isolated from trees and a Queensland koala kept in a Japanese zoological park". International Journal of Systematic and Evolutionary Microbiology. 61: 3068–3071. doi:10.1099/ijs.0.027144-0.
  2. Liu XZ, Wang QM, Göker M, Groenewald M, Kachalkin AV, Lumbsch HT, Millanes AM, Wedin M, Yurkov AM, Boekhout T, Bai FY (2015). "Towards an integrated phylogenetic classification of the Tremellomycetes". Studies in Mycology. 81: 85–147. doi:10.1016/j.simyco.2015.12.001. PMC 4777781. PMID 26955199.
  3. ^ Malysheva VF, Malysheva EF, Bulakh EM (2015). "The genus Tremella (Tremellales, Basidiomycota) in Russia with description of two new species and proposal of one nomenclatural combination". Phytotaxa. 238: 40–70. doi:10.11646/phytotaxa.238.1.2.
Taxon identifiers
Tremella yokohamensis
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