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Sporangium and zoospores of the chytrid fungus B. dendrobatidis, under a scanning electron microscope Chytrid sporangium and zoospores under the microscope Growth continues until a new batch of zoospores are ready for release.
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]
The appearance of the fungus under the microscope can vary but generally shows wide (10–20 micron), ribbon-like filaments that generally do not have septa and that—unlike in aspergillosis—branch at right angles, resembling antlers of a moose, which may be seen to be invading blood vessels. [13] [38]
Penicillium sp. under bright field microscopy (10 × 100 magnification) with lactophenol cotton blue stain The thallus ( mycelium ) consists of highly branched networks of multinucleated , usually colourless hyphae , with each pair of cells separated by a septum .
Microscopic test: The veterinarian takes hairs from around the infected area and places them in a staining solution to view under the microscope. Fungal spores may be viewed directly on hair shafts. This technique identifies a fungal infection in about 40%–70% of the infections, but cannot identify the species of dermatophyte.
Athlete's foot fungus may infect any part of the foot, but most often grows between the toes. [3] The next most common area is the bottom of the foot. [6] The same fungus may also affect the nails or the hands. [4] It is a member of the group of diseases known as tinea. [7]
Conidia and conidiophores of the fungus Acremonium falciforme PHIL 4168 lores. Under the microscope at 30 °C, A. strictum shows long slender phialides, and conidia are cylindrical or ellipsoidal, formed in slimy bundles at the tips of the phialides. Lower microscopy shows pin-head spore ball formation.
Trichophyton rubrum is a dermatophytic fungus in the phylum Ascomycota.It is an exclusively clonal, [2] anthropophilic saprotroph that colonizes the upper layers of dead skin, and is the most common cause of athlete's foot, fungal infection of nail, jock itch, and ringworm worldwide. [3]