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Viewing the fungi under a microscope, Micheli was reminded of the shape of an aspergillum (holy water sprinkler), from Latin spargere (to sprinkle), and named the genus accordingly. [2] [3] Aspergillum is an asexual spore-forming structure common to all Aspergillus species; around one-third of species are also known to have a sexual stage. [4]
Aspergillus niger is a mold classified within the Nigri section of the Aspergillus genus. [1] The Aspergillus genus consists of common molds found throughout the environment within soil and water, on vegetation, in fecal matter, on decomposing matter, and suspended in the air. [ 2 ]
Aspergillus penicillioides is a species of fungus in the genus Aspergillus, and is among the most xerophilic fungi. [ 1 ] Aspergillus penicillioides is typically found in indoor air, house dust , and on substrates with low water activity , such as dried food, papers affected by foxing , and inorganic objects such as binocular lenses. [ 2 ]
The fungus is capable of growth at 37 °C or 99 °F (normal human body temperature), and can grow at temperatures up to 50 °C or 122 °F, with conidia surviving at 70 °C or 158 °F—conditions it regularly encounters in self-heating compost heaps. Its spores are ubiquitous in the atmosphere, and everybody inhales an estimated several hundred ...
[2] [1] [7] Aspergillus parasiticus colonies are dark green. The average growth temperature for this fungus ranges between 12 and 42 °C with the optimum temperature for growth is at 32 °C and no growth reported at 5 °C. [3] Growth pH ranges from 2.4 to 10.5 with the optimum growth ranging between 3.5–8. [3]
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.
Aspergillus montevidensis is a species of fungus in the genus Aspergillus.It is from the Aspergillus section. [2] The species was first described in 1931. [1] It has been reported to produce apolar indoloterpenes, asperflavin in few isolates, auroglaucin, dihydroauroglaucin, echinulins, epiheveadrides, flavoglaucin, isoechinulins, neoechinulins, and tetrahydroauroglaucin.
Aspergillus tubingensis exhibits high resistance to ultraviolet light and can grow in elevated temperatures [12] between 30–37 °C (86–99 °F), [13] with optimal growth between 21–36 °C (70–97 °F). [7] In the temperature range of 15–20 °C (59–68 °F), this species is able to produce the mycotoxin, ochratoxin A (OTA). [13]