Clavicipitaceae | |
---|---|
Claviceps purpurea | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Fungi |
Division: | Ascomycota |
Class: | Sordariomycetes |
Order: | Hypocreales |
Family: | Clavicipitaceae (Lindau) Earle (1901) |
Type genus | |
Claviceps Tul. (1853) | |
Genera | |
See text |
The Clavicipitaceae are a family of fungi within the order Hypocreales. A 2008 estimate placed 43 genera in the family, [1] but a study in 2020 has increased this number to 50. [2]
Molecular phylogenetic analysis of multigene DNA sequence data indicates the taxon Clavicipitaceae is paraphyletic, and consists of three well-defined clades, at least one of which is shared with members of another fungal family (Hypocreaceae). [3] The evolution within the Clavicipitaceae is marked by interkingdom host jumping, and the range of this large and heterogeneous fungal group spans mutualistic plant symbionts, as well as parasites of plants, insects, and other fungi. [4]
Many of its members produce alkaloids toxic to animals and humans. One of its most infamous species is Claviceps purpurea , which has historical significance as the cause of St. Anthony's fire, also known as ergotism. Ergotism is caused by ergot alkaloids, such as ergotamine and ergocristine, which are chemical derivatives of lysergic acid. Metarhizium species are widely used in the biological control of insect pests. [5]
Several genera, especially those previously described as "anamorphic" (having no known sexual cycle) are now re-classified into other families, in light of current molecular and other evidence. Mycobank currently (July 2018) lists the following genera in this family. [6] With additions (including no. of species) from Wijayawardene et al. 2020. [2]
Cordyceps is a genus of ascomycete fungi that includes about 600 worldwide species. Diverse variants of cordyceps have had more than 1,500 years of use in Chinese medicine. Most Cordyceps species are endoparasitoids, parasitic mainly on insects and other arthropods ; a few are parasitic on other fungi.
The Eurotiales are an order of sac fungi, also known as the green and blue molds. It was circumscribed in 1980.
The Hypocreales are an order of fungi within the class Sordariomycetes. In 2008, it was estimated that it contained some 237 genera, and 2647 species in seven families. Since then, a considerable number of further taxa have been identified, including an additional family, the Stachybotryaceae. Wijayawardene et al. in 2020 added more families and genera to the order. According to the Catalog of Life, As of April 2021 the Hypocreales contains 6 families, 137 genera, and 1411 species. Hyde et al. (2020a) listed 14 families under Hypocreales, while, Wijayawardene et al. (2022) accepted 15 families in the order, where Cylindriaceae was additionally added. Earlier, Hyde et al. (2020a) had placed Cylindriaceae in class Xylariomycetidae. Samarakoon et al. (2022) agreed. Hence, Cylindriaceae should have been excluded from Hypocreales and placed in Xylariomycetidae. Xiao et al. (2022) recently introduced a new family Polycephalomycetaceae to Hypocreales.
The Nectriaceae comprise a family of fungi in the order Hypocreales. It was circumscribed by brothers Charles and Louis René Tulasne in 1865. In 2020, an Outline of fungi was produced and listed 70 genera and about 1,336 species.
Paecilomyces is a genus of fungi. A number of species in this genus are plant pathogens.
Metarhizium is a genus of entomopathogenic fungi in the Clavicipitaceae family. With the advent of genetic profiling, placing these fungi in proper taxa has now become possible. Most turn out to be the asexual forms (anamorphs) of fungi in the phylum Ascomycota, including Metacordyceps spp.
Ascopolyporus is a genus of fungi within the family Cordycipitaceae. Species are pathogens of scale insects.
Metacordyceps is a genus of fungi in the family Clavicipitaceae. The anamorphs of Metacordyceps appear to include Metarhizium species.
Ophiocordycipitaceae is a family of parasitic fungi in the Ascomycota, class Sordariomycetes. It was updated in 2020.
Podonectria is a genus in the monotypic Podonectriaceae family of fungi. They are parasitic fungus on scale insects, other fungi, or on substrates that had previously colonized by other fungi.
Lecanicillium lecanii is now an approved name of an entomopathogenic fungus species, that was previously widely known as Verticillium lecanii (Zimmerman) Viegas), but is now understood to be an anamorphic form in the Cordyceps group of genera in the Clavicipitaceae. Isolates formerly classified as V. lecanii could be L. attenuatum, L. lecanii, L. longisporum, L. muscarium or L. nodulosum. For example, several recent papers, such as Kouvelis et al. who carried out mitochondrial DNA studies, refer to the name L. muscarium.
Purpureocillium is a fungal genus in the Ophiocordycipitaceae family. The genus now contains at least 5 species with the type species Purpureocillium lilacinum, a common saprobic, filamentous fungus. It has been isolated from a wide range of habitats, including cultivated and uncultivated soils, forests, grassland, deserts, estuarine sediments and sewage sludge, and insects. It has also been found in nematode eggs, and occasionally from females of root-knot and cyst nematodes. In addition, it has frequently been detected in the rhizosphere of many crops. The species can grow at a wide range of temperatures – from 8 to 38 °C for a few isolates, with optimal growth in the range 26 to 30 °C. It also has a wide pH tolerance and can grow on a variety of substrates. P. lilacinum has shown promising results for use as a biocontrol agent to control the growth of destructive root-knot nematodes.
Paraisaria is a genus of fungi in the Ophiocordycipitaceae family. Members are anamorph names of Ophiocordyceps.
Tolypocladium is a genus of fungi within the family Ophiocordycipitaceae. It includes species that are parasites of other fungi, insect pathogens, rotifer pathogens and soil inhabiting species with uncertain ecological roles. Tolypocladium was originally circumscribed as a genus containing anamorphic fungi. It was later determined that some Cordyceps-like teleomorphic fungi were the teleomorphs of Tolypocladium species. These species were considered to belong in the genus Cordyceps until molecular phylogenetics studies found these species to be more closely related to Ophiocordyceps and were considered to belong in that genus before they were transferred to the new genus Elaphocordyceps by Sung and colleagues in 2007. However, under the ICN's 2011 "one fungus, one name" principle, fungi can not have different names for their anamorphic and teleomorphic stages if they are found to be the same taxon. Quandt and colleagues formally synonymized Tolypocladium and Elaphocordyceps in 2014. Quandt and colleagues also synonymized the anamorphic genus Chaunopycnis with Tolypocladium. The immunosuppressant drug ciclosporin was originally isolated from Tolypocladium inflatum, and has since been found in other species of Tolypocladium, some of which were formerly placed in Chaunopycnis.
Ophiocordyceps myrmecophila is a species of fungus that parasitizes insect hosts, in particular members of the order Hymenoptera.
The Cordycipitaceae are a family of parasitic fungi in the Ascomycota, class Sordariomycetes and order Hypocreales. The family was first published in 1969 by mycologist Hanns Kreisel, but the naming was invalid according to the code of International Code of Nomenclature for algae, fungi, and plants. It was validly published in 2007.
Ophiocordyceps formicarum is an entomopathogenic fungus belonging to the order Hypocreales (Ascomycota) in the family Ophiocordycipitaceae. The fungus was first described by mycologist George S. Kobayashi in 1939 as a species of Cordyceps. Originally found in Japan growing on an adult Hercules ant, it was reported from Guizhou, China, in 2003. It was transferred to the new genus Ophiocordyceps in 2007 when the family Cordycipitaceae was reorganized. A technique has been developed to grow the fungus in an agar growth medium supplemented with yeast extract, inosine, and glucose.
Isaria is a genus of fungi mostly in the order Hypocreales and family Clavicipitaceae, or by some authorities the Cordycipitaceae. It includes a large number of entomopathogenic species, some of them exploited as biopesticides : often previously assigned to the genus Paecilomyces.
Purpureocillium atypicola is a species of fungus, previously known as Nomuraea atypicola, in the family Ophiocordycipitaceae with no subspecies listed in the Catalogue of Life. There are records of this mushroom from Japan, Australia and New Zealand.
The Torpedosporales are an order of marine based fungi in the class Sordariomycetes, subclass Hypocreomycetidae. Most are found on wood substrates in the water.