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Various Penicillium, Aspergillus spp. and other fungi growing in axenic culture Historical model of Aspergillus, Botanical Museum Greifswald. Species of Aspergillus are important medically and commercially. Some species can cause infection in humans and other animals.
The most common mycotoxin is aflatoxin. It can be very carcinogenic to both humans and animals. Aflatoxin is produced by two species of Aspergillus, A. flavus and A. parasiticus, which are known to affect plants including cereal grains, figs, nuts, and tobacco. [2] Cereal grains are one of the main ingredient in animal feed. The animals most at ...
Aspergillus parasiticus was first discovered in 1912 by pathopathologist, A.T Speare from dead mealy bugs collected on Hawaiian sugarcane plantations. [4] The species epithet, "parasiticus" is derived from the Latin word meaning "parasite" and was selected due to the ability of the fungus to parasitize other organisms. [5]
The genus Aspergillus includes several hundred fungus species.As of August 2023, there are 817 different combinations including synonyms as acknowledged by Species Fungorum, representing 592 accepted species; [2] In the list below, if no author/authors (or published date) mentioned then it is not listed in Species Fungorum.
Aspergillus fumigatus is a species of fungus in the genus Aspergillus, and is one of the most common Aspergillus species to cause disease in individuals with an immunodeficiency. Aspergillus fumigatus , a saprotroph widespread in nature, is typically found in soil and decaying organic matter, such as compost heaps, where it plays an essential ...
The hyphae of Aspergillus species range in diameter from 2.5 to 4.5 μm. They have septate hyphae, [28] but these are not always apparent, and in such cases they may be mistaken for Zygomycota. [27] Aspergillus hyphae tend to have dichotomous branching that is progressive and primarily at acute angles of around 45°. [27]
This fungus is readily distinguished from the other species of Aspergillus by its cinnamon-brown colony colouration and its production of aleurioconidia. A. terreus is a thermotolerant species since it has optimal growth in temperatures between 35–40 °C (95–104 °F), and maximum growth within 45–48 °C (113–118 °F). [13]
Aspergillus flavus is a saprotrophic and pathogenic [1] fungus with a cosmopolitan distribution. [2] It is best known for its colonization of cereal grains , legumes , and tree nuts . Postharvest rot typically develops during harvest, storage, and/or transit.