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Yeasts have been used since ancient times to leaven bread and to ferment beer and wine. [2] More recently, fungi have been used for a wide variety of industrial fermentations, whether working directly for their effects on materials such as processing paper pulp or bioremediating industrial waste, or serving as the source of enzymes for many purposes, such as fading and softening denim for ...
Among children and adolescents, the most common health effect post-flooding was lower respiratory tract symptoms, though there was a lack of association with measurements of total fungi. [15] Another study found that these respiratory symptoms were positively associated with exposure to water damaged homes, exposure included being inside ...
Pathogenic fungi are fungi that cause disease in humans or other organisms. Although fungi are eukaryotic , many pathogenic fungi are microorganisms . [ 1 ] Approximately 300 fungi are known to be pathogenic to humans; [ 2 ] their study is called " medical mycology ".
Most infections with C. neoformans occur in the lungs, as the fungus enters its host through the respiratory route. [14] Because it is normally a harmless soil fungus, C. neoformans must first adapt to its new environment inside the human body, making several virulent transformations, including the formation of a polysaccharide capsule.
Where conditions are right, fungi proliferate into colonies and mycotoxin levels become high. The reason for the production of mycotoxins is not yet known; they are not necessary for the growth or the development of the fungi. [9] Because mycotoxins weaken the receiving host, they may improve the environment for further fungal proliferation.
The fungus has been found in poultry-house litter, caves, areas harboring bats, and bird roosts (particularly those of starlings). The fungus is thermally dimorphic ; in the environment, it grows as a brownish mycelium , and at body temperature (37 °C in humans), it morphs into a yeast .
The terms alternariosis and alternariatoxicosis are used for disorders in humans and animals caused by a fungus in this genus. Not all Alternaria species are pests and pathogens; some have shown promise as biocontrol agents against invasive plant species. Some species have also been reported as endophytic microorganisms with highly bioactive ...
Scratching also damages skin layers, making it easier for the fungi to spread at the site of the infection. If the fungi and infested debris are not washed from the fingers and fingernails soon enough, the fungi can also infect the skin of the fingers (tinea manuum), and burrow underneath and into the material of the fingernails (tinea unguium ...