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Aureobasidium melanogenum, formerly known as Aureobasidium pullulans var. melanogenum is a ubiquitous black, yeast-like fungus that is found mainly in freshwater habitats. . The species also includes strains causing human infections, which were previously classified as A. pullulans
The light-absorbing compound in the fungus cell membranes had the effect of turning the water black. [5] While there are many cases of extremophiles (organisms that can live in severe conditions such as that of the radioactive power plant), a hypothetical radiotrophic fungus would grow because of the radiation, rather than in spite of it. [6]
Melanin is brown, non-refractile, and finely granular with individual granules having a diameter of less than 800 nanometers. This differentiates melanin from common blood breakdown pigments, which are larger, chunky, and refractile, and range in color from green to yellow or red-brown. In heavily pigmented lesions, dense aggregates of melanin ...
The English word fungus is directly adopted from the Latin fungus (mushroom), used in the writings of Horace and Pliny. [10] This in turn is derived from the Greek word sphongos (σφόγγος 'sponge'), which refers to the macroscopic structures and morphology of mushrooms and molds; [11] the root is also used in other languages, such as the German Schwamm ('sponge') and Schimmel ('mold').
Presence of 1,8-dihydroxynaphthalene melanin in the cell wall [9] confers to the microfungi their characteristic olivaceous to dark brown/black colour. The consortium comprises two phylogenetically very different fungal groups. [10] [11] Many are found in the orders Capnodiales, Dothideales, and Pleosporales (class Dothideomycetes). These black ...
Bjerkandera adusta, commonly known as the smoky polypore or smoky bracket, [2] is a species of fungus in the family Phanerochaetaceae. It is a plant pathogen that causes white rot in live trees, but most commonly appears on dead wood.
Cladophialophora bantiana (C. bantiana) is a melanin producing mold known to cause brain abscesses in humans. [1] It is one of the most common causes of systemic phaeohyphomycosis in mammals. [ 2 ] Cladophialophora bantiana is a member of the ascomycota and has been isolated from soil samples from around the world.
The term "phaeohyphomycosis" was introduced to determine infections caused by dematiaceous (pigmented) filamentous fungi which contain melanin in their cell walls. [11] Phaeohyphomycosis is an uncommon infection, but the number of cases reported has been increasing in recent years. Fungal melanin is thought to be a virulence factor.