Thermoascus

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Thermoascus
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Fungi
Division: Ascomycota
Class: Eurotiomycetes
Order: Eurotiales
Family: Thermoascaceae
Genus: Thermoascus
Bainier (1907)
Type species
Thermoascus aurantiacus
Miehe (1907)
Species

T. aegyptiacus
T. aurantiacus
T. crustaceus
T. taitungiacus
T. thermophilus
T. verrucosus
T. yaguchii

Thermoascus is a genus of soil fungi in the family Trichocomaceae. Species in the genus are characterized by the production of heat-resistant ascospores. Thermoascus was circumscribed by German botanist Hugo Miehe in 1907. [1]

The type species, Thermoascus aurantiacus , is of research interest because it secretes heat-resistant hydrolase enzymes that could possibly be used in biotechnological applications, such as the conversion of biomass to biofuels. [2] Genetic tools have been developed to genetically edit Thermoascus aurantiacus , such as an Agrobacterium tumefaciens-mediated transformation protocol and a CRISPR-Cas9 gene editing system, which have been used to overexpress genes that correspond to production of enzymes that break down plant matter and inactivate genes. [3]

Species

Another described species, Thermoascus isatschenkoi Malchevskaya (1939), [8] is considered doubtful due to a lack of examinable material and an incomprehensive description. [9]

Related Research Articles

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

The Eurotiales are an order of sac fungi, also known as the green and blue molds. It was circumscribed in 1980.

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

The Trichocomaceae are a family of fungi in the order Eurotiales. Taxa are saprobes with aggressive colonization strategies, adaptable to extreme environmental conditions. Family members are cosmopolitan in distribution, ubiquitous in soil, and common associates of decaying plant and food material.

<i>Paecilomyces</i> Genus of fungi

Paecilomyces is a genus of fungi. A number of species in this genus are plant pathogens.

<i>Arachnomyces</i> Genus of fungi

Arachnomyces is a genus of cleistothecial ascomycete fungi described in 1902, of which the anamorph (asexual) stage is the genus Onychocola. Although morphologically similar to members of other families, the fungus now belongs to its own monotypic family Arachnomycetaceae, which is the only family in the monotypic order Arachnomycetales.

<i>Penicillium chrysogenum</i> Species of fungus

Penicillium chrysogenum is a species of fungus in the genus Penicillium. It is common in temperate and subtropical regions and can be found on salted food products, but it is mostly found in indoor environments, especially in damp or water-damaged buildings. It has been recognised as a species complex that includes P. notatum, P. meleagrinum, and P. cyaneofulvum. Molecular phylogeny has established that Alexander Fleming's first discovered penicillin producing strain is of a distinct species, P. rubens, and not of P. notatum. It has rarely been reported as a cause of human disease. It is the source of several β-lactam antibiotics, most significantly penicillin. Other secondary metabolites of P. chrysogenum include roquefortine C, meleagrin, chrysogine, 6-MSA YWA1/melanin, andrastatin A, fungisporin, secalonic acids, sorbicillin, and PR-toxin.

Myceliophthora thermophila is an ascomycete fungus that grows optimally at 45–50 °C (113–122 °F). It efficiently degrades cellulose and is of interest in the production of biofuels. The genome has recently been sequenced, revealing the full range of enzymes this organism uses for the degradation of plant cell wall material.

<i>Talaromyces</i> Genus of fungi

Talaromyces is a genus of fungi in the family Trichocomaceae. Described in 1955 by American mycologist Chester Ray Benjamin, species in the genus form soft, cottony fruit bodies (ascocarps) with cell walls made of tightly interwoven hyphae. The fruit bodies are often yellowish or are surrounded by yellowish granules. A 2008 estimate placed 42 species in the genus, but several new species have since been described.

Penicillium alfredii is a fungus species of the genus of Penicillium which is named after Alfred P. Sloan.

Penicillium dunedinense is a species of the genus of Penicillium which was isolated in Dunedin in New Zealand.

Penicillium ellipsoideosporum is a species of the genus of Penicillium which was isolated in China.

Penicillium osmophilum is a species of fungus in the genus Penicillium which was isolated from agricultural soil in Wageningen in the Netherlands

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Rasamsonia is a genus of fungi in the family Trichocomaceae, circumscribed in 2011 by mycologists Jos Houbraken and Jens Frisvad. It is characterized from other genera of the Trichocomaceae by the following combination of features: species are thermotolerant or thermophilic; their conidiophores have distinctly rough-walled stipes; conidia are olive brown; and ascomata, if present, have minimal covering. Rasamsonia phenotypically resembles Paecilomyces, in that both have thermotolerant species, produce olive-brown conidia, and form ascomata with no or scarce ascomatal covering; Rasamsonia, however, differs from Paecilomyces in having more regularly branched conidiophores with distinct rough-walled structures. The type species is Rasamsonia emersonii, a fungus formerly classified in the genus Talaromyces.

Thermomyces lanuginosus is a species of thermophilic fungus that belongs to Thermomyces, a genus of hemicellulose degraders. It is classified as a deuteromycete and no sexual form has ever been observed. It is the dominant fungus of compost heaps, due to its ability to withstand high temperatures and use complex carbon sources for energy. As the temperature of compost heaps rises and the availability of simple carbon sources decreases, it is able to out compete pioneer microflora. It plays an important role in breaking down the hemicelluloses found in plant biomass due to the many hydrolytic enzymes that it produces, such as lipolase, amylase, xylanase, phytase, and chitinase. These enzymes have chemical, environmental, and industrial applications due to their hydrolytic properties. They are used in the food, petroleum, pulp and paper, and animal feed industries, among others. A few rare cases of endocarditis due to T. lanuginosus have been reported in humans.

Aspergillus falconensis is a species of fungus in the genus Aspergillus. It is from the Nidulantes section. The species was first described in 1989. It has been reported to produce 3,30-Dihydroxy-5,50-dimethyldiphenyl ether, falconensin A-N, falconenson A-B, hopane-6α,7β,22-triol, hopane-7β,22-diol, mitorubrin, monomethyldihydromitorubrin, monomethylmitorubrin, and zeorin.

Aspergillus leucocarpus is a species of fungus in the genus Aspergillus. It is from the Aspergillus section. The species was first described in 1969. It has been reported to produce an apolar indoloterpene, echinulins, epiheveadrides, and neoechinulins.

Aspergillus sloanii is a species of fungus in the genus Aspergillus. It is from the Aspergillus section. The species was first described in 2014. It has been reported to produce auroglaucin, bisanthrons, dihydroauroglaucin, echinulins, flavoglaucin, physcion, tetracyclic, and tetrahydroauroglaucin.

Aspergillus corrugatus is a species of fungus in the genus Aspergillus. It is from the Nidulantes section. The species was first described in 1976. It has been isolated from soil in Thailand. It has been reported to produce asperthecin, emecorrugatin A, emecorrugatin B, sterigmatocystin, and norsolorinic acid.

Monascaceae is a former family of fungi in the subclass Eurotiomycetidae.

References

  1. 1 2 Miehe H (1907). Die Selbsterhitzung Des Heus: Eine Biologische Studie (in German). Jena: Gustav Fischer. p. 70.
  2. McClendon SD, Batth T, Petzold CJ, Adams PD, Simmons BA, Singer SW (July 2012). "Thermoascus aurantiacus is a promising source of enzymes for biomass deconstruction under thermophilic conditions". Biotechnology for Biofuels. 5 (1): 54. doi: 10.1186/1754-6834-5-54 . PMC   3507748 . PMID   22839529.
  3. Gabriel R, Prinz J, Jecmenica M, Romero-Vazquez C, Chou P, Harth S, et al. (2020-10-10). "Development of genetic tools for the thermophilic filamentous fungus Thermoascus aurantiacus". Biotechnology for Biofuels. 13 (1): 167. doi: 10.1186/s13068-020-01804-x . PMC   7547499 . PMID   33062053.
  4. Ueda S, Udagawa SI (1983). "Thermoascus aegyptiacus, a new thermophilic Ascomycete". Transactions of the Mycological Society of Japan. 24: 135–142.
  5. Stolk AC (1965). "Thermophilic species of Talaromyces Benjamin and Thermoascus Miehe". Antonie van Leeuwenhoek. 31 (3): 262–76. doi:10.1007/bf02045906. PMID   5294506. S2CID   34464849.
  6. Chen KY, Chen ZC (1996). "A new species of Thermoascus with a Paecilomyces anamorph and other thermophilic Thermoascus species from Taiwan". Mycotaxon. 60: 225–240.
  7. von Arx JA (1970). "The Genera of Fungi Sporulating in Pure Culture". Lehre: J. Cramer: 84.{{cite journal}}: Cite journal requires |journal= (help)
  8. Page Thermoascus isatschenkoi on "Mycobank". Westerdijk Fungal Biodiversity Institute . Retrieved 2023-09-06.
  9. Houbraken J, Kocsubé S, Visagie CM, Yulmaz N, Wang XC, Meijer M, Kraak B, Hubka V, Bensch K, Samson RA, Frisvad JC (2020). "Classification of Aspergillus, Penicillium, Talaromyces and related genera (Eurotiales): An overview of families, genera, subgenera, sections, series and species". Studies in Mycology. 95: 5–169. doi:10.1016/j.simyco.2020.05.002. PMC   7426331 . PMID   32855739.