Aspergillus clavatus
| Aspergillus clavatus | |
|---|---|
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| Conidial head of Aspergillus clavatus | |
| Scientific classification | |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Eurotiomycetes |
| Order: | Eurotiales |
| Family: | Trichocomaceae |
| Genus: | Aspergillus |
| Species: | A. clavatus |
| Binomial name | |
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Aspergillus clavatus Desm. (1834) |
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| Synonyms | |
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Aspergillus pallidus (Samson, 1979) |
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Aspergillus pallidus (Samson, 1979)
Aspergillus clavatus is a species of Aspergillus with conidia dimensions 3–4.5 x 2.5–4.5 μms. It is found in soil and animal manure. The fungus was first described scientifically in 1834 by the French mycologist John Baptiste Henri Joseph Desmazières.
The fungus can produce the toxin patulin, which may be associated with disease in humans and animals. This species is only occasionally pathogenic.
Other sources have identified many species of Aspergillus as producing dry, hydrophobic spores that are easily inhaled by humans and animals. Due to the small size of the spores, about 70% of spores of A. fumigatus are able to penetrate into the trachea and primary bronchi and close to 1% into alveoli. Inhalation of spores of Aspergillus is a health risk. A. clavatus is allergenic, causing the occupational hypersensitivity pneumonitis known as malt-worker's lung.
Aspergillus clavatus is a species of Aspergillus and is characterized by elongated club-shaped vesicles, and blue-green uniseriate conidia. The fungus was first described scientifically in 1834 by the French mycologist John Baptiste Henri Joseph Desmazières. It belongs to the Aspergillus section Clavati, (formerly known as the Aspergillus clavatus group) recognized by Charles Thom and Margaret Church (1926), alongside two species, Aspergillus clavatus and Aspergillus giganteus. In the succeeding years, four more species were discovered belonging to the Aspergillus section Clavati, which included Aspergillus rhizopodus, Aspergillus longivesica, Neocarpenteles acanthosporus and Aspergillus clavatonanicus. Later on, Aspergillus pallidus was concluded to be a white variant (synonym) of A. clavatus by Samson (1979), which was supported by the identical DNA sequences of the two species.
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