Amylocorticiales | |
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Ceraceomyces sublaevis | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Fungi |
Division: | Basidiomycota |
Class: | Agaricomycetes |
Subclass: | Agaricomycetidae |
Order: | Amylocorticiales K.H.Larss., Manfr. Binder & Hibbett (2010) |
Family: | Amylocorticiaceae Jülich (1981) |
Type genus | |
Amylocorticium Pouzar (1959) |
Amylocorticiales is an order of fungi in the class Agaricomycetes. The order was circumscribed in 2010 to contain mostly resupinate (crust-like) forms that have been referred to genera Anomoporia , Amyloathelia , Amylocorticiellum , Amylocorticium , Amyloxenasma , Anomoloma , Athelopsis , Ceraceomyces , Hypochniciellum , Leptosporomyces and Serpulomyces and the anomalous species, Athelia rolfsii, now classified in its own genus, Agroathelia .
Phylogeny and relationships of Amylocorticiales ribosomal DNA sequences. [1] |
The order contains one of three assemblages of basal lineages of Agaricomycetidae that contain corticioid fungi; the others are the Jaapiales and the Atheliales. [1] Although several molecular studies have confirmed the placement of the Amylocorticiales in the Agaricomycetidae, its relationship with other higher-level taxa is not known precisely. Depending on the loci used for analysis, the order is supported as sister group to the Agaricales, or as sister to a clade that contains the Agaricales, Boletales and Atheliales. [2] [3] [4] [5]
Species in the Amylocorticiales form fruit bodies that are effused (stretched out flat like a film-like growth), effused-reflexed (stretched out but with edges curled up) to almost pileate (with a cap), or stipitate (with a stipe). They have smooth hymenophores that can be either merulioid (wrinkled with low, uneven ridges), irpicoid (with "teeth") or poroid (with pores). The hyphal system is monomitic (containing only generative hyphae) and all hyphae are nodose-septate (with nodes and septa). The cystidia are rare and when present, are tube-like and often nodose-septate. The basidia (spore-bearing cells) are mostly terminal but in one genus borne laterally on horizontal hyphae (pleurobasidia), invariably producing four spores. The basidiospores are smooth, thin-walled or thick-walled, ellipsoid, cylindrical or allantoid (sausage-shaped), in most species amyloid. Taxa that do not exhibit amyloid reactions include Agroathelia , Ceraceomyces , Podoserpula , Serpulomyces and Leptosporomyces septentrionalis . Species are saprobic on decaying wood or as plant parasites. Amylocorticiales typically cause brown rot or white rot. Agroathelia (often called Sclerotium rolfsii) is a major plant pathogen of field crops [1]
Neolentinus is a genus of wood-decaying agarics with tough fruit bodies composed of dimitic tissue, serrated lamella edges, and nonamyloid white binucleate basidiospores among other features. It was segregated from Lentinus in the broad taxonomic sense, hence the derivation of the name. Biologically Neolentinus species produce a brown rot type of decay of wood, whereas Lentinus causes a white rot. Molecular phylogenetic analysis shows that the two genera are unrelated. Neolentinus is phylogenetically allied to other brown rot genera such as Gloeophyllum, Heliocybe, and Veluticeps. A new order, the Gloeophyllales, has been described for these fungi. Heliocybe had been placed in synonymy but it differs phylogenetically and anatomically by the lack of clamp connections that all Neolentinus produce on their generative hyphae.
The Tricholomataceae are a large family of fungi within the order Agaricales. Originally a classic "wastebasket taxon", the family included any white-, yellow-, or pink-spored genera in the Agaricales not already classified as belonging to e.g. the Amanitaceae, Lepiotaceae, Hygrophoraceae, Pluteaceae, or Entolomataceae.
The Fistulinaceae are a family of fungi, the best-known member of which is the beefsteak fungus Fistulina hepatica. Molecular studies have now shown it to lie within the Agaricales.
The Sclerodermataceae are a family of fungi in the order Boletales, containing several genera of unusual fungi that little resemble boletes. Taxa, which include species commonly known as the ‘hard-skinned puffballs’, ‘earthballs’, or 'earthstars', are widespread in both temperate and tropical regions. The best known members include the earthball Scleroderma citrinum, the dye fungus Pisolithus tinctorius and the 'prettymouths' of the genus Calostoma.
The Gloeophyllales are a phylogenetically defined order of wood-decay fungi that is characterized by the ability to produce a brown rot of wood. It includes a single, identically defined family, the Gloeophyllaceae, in which are included the genera Gloeophyllum, Neolentinus, Heliocybe, and Veluticeps.
Atheliaceae is a family of corticioid fungi placed under the monotypic order Atheliales. Both the order and the family were described by Walter Jülich in 1981. According to a 2008 estimate, the family contains 20 genera and approximately 100 species. However, many genera formerly considered to belong in the Atheliaceae have since been moved to other families, including Amylocorticiaceae, Albatrellaceae, and Hygrophoraceae. Despite being a relatively small group with inconspicuous forms, Atheliaceae members show great diversity in life strategies and are widespread in distribution. Additionally, being a group strictly composed of corticioid fungi, they may also provide insights on the evolution of fruiting body forms in basidiomycetes.
Anomoporia is a genus of fungi in the family Amylocorticiaceae. The genus was circumscribed by Czech mycologist Zdeněk Pouzar in 1966.
Ceraceomyces is a genus of fungi in the family Amylocorticiaceae. The genus has a widespread distribution and contains 16 species.
Jaapia is a genus in the monotypic family Jaapiaceae and order Jaapiales. The genus was first described by Italian mycologist Giacomo Bresadola in 1911, and contains two widely distributed species, J. argillacea and J. ochroleuca. The order was described in 2010.
The corticioid fungi are a group of fungi in the Basidiomycota typically having effused, smooth basidiocarps that are formed on the undersides of dead tree trunks or branches. They are sometimes colloquially called crust fungi or patch fungi. Originally such fungi were referred to the genus Corticium and subsequently to the family Corticiaceae, but it is now known that all corticioid species are not necessarily closely related. The fact that they look similar is an example of convergent evolution. Since they are often studied as a group, it is convenient to retain the informal (non-taxonomic) name of "corticioid fungi" and this term is frequently used in research papers and other texts.
Podoserpula is a genus of fungi in the family Amylocorticiaceae. The genus contains two species: the type, P. pusio, commonly known as the pagoda fungus, and the "Barbie pagoda", P. miranda, officially published in 2013. Podoserpula species produce fruit bodies consisting of up to a dozen caps arranged in overlapping shelves, attached to a central axis. Its unique shape is not known to exist in any other fungi. Four varieties of P. pusio are known, which differ in their sizes, spore morphology, and distribution. The genus is known to occur in Australia and New Zealand, Venezuela, Madagascar, and New Caledonia.
Irpicodon is a genus of fungi in the family Amylocorticiaceae. The genus is monotypic, containing the single species Irpicodon pendulus, found in Europe.
Amyloxenasma is a genus of corticioid fungi in the family Amylocorticiaceae. The widely distributed genus contains six species.
Amylocorticiellum is a genus of fungi in the family Amylocorticiaceae. The genus has a widespread distribution and contains four species.
Amyloathelia is a genus of fungi in the family Amylocorticiaceae. The genus contains three species distributed in Europe and South America.
Hypochniciellum is a genus of corticioid fungi in the family Amylocorticiaceae. Species in the genus have white to cream, resupinate fruit bodies. The hyphae have clamp connections. The spores are roughly elliptical, yellowish, and smooth.
Leptosporomyces is a genus of resupinate (crust-like) fungi in the family Amylocorticiaceae. The genus is widespread in the Northern Hemisphere and contains 11 species.
Hypochnella is a genus of corticioid (crust-like) fungi. It is one of several genera that were doubtfully placed in the order Atheliaceae based on microscopic morphological simultaneous with core Atheliaceae genera. However, a molecular study with emphasis on Atheliales, including samples across most agaricomycete orders, retrivied the species Hypochnella violacea within the order Polyporales. Although a close relationship between Hypochnella violacea and genus Australohydnum was suggested, resolving the phylogenetic position of Hypochnella within Polyporales was outside the scope of the study. The genus contains two described species.
Agroathelia is a fungal genus currently consisting of a single widespread species, Agroathelia rolfsii that causes serious diseases of cultivated crops such as tomatoes, potatoes, peanuts, bell peppers, and sweet potatoes among many other hosts. The type and only species is better known under the names Sclerotium rolfsii or Athelia rolfsii. It is a member of the Amylocorticiales rather than the Atheliales where it had been placed previously The genus is characterized by the production of brownish, mustard seed-sized sclerotia with diagnostic polyhedron-shaped cortical cells. It has 4-spored clavate basidia, nonamyloid, ellipsoid basidiospores and a smooth hymenium. Basidia are rarely observed in nature.
Agroathelia rolfsii is a corticioid fungus in the order Amylocorticiales. It is a facultative plant pathogen and is the causal agent of "southern blight" disease in crops.