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It enters through small cuts in the skin to cause a fungal infection. [1] In cases of sporotrichosis affecting the lungs, the fungal spores enter by inhalation. [1] Sporotrichosis can be acquired by handling cats with the disease; it is an occupational hazard for veterinarians. [1] Treatment depends on the site and extent of infection. [1]
The primary inocula are the ascospores, sexual spores which are produced in the perithecia. [4] Spores are forcibly discharged and can germinate within six hours upon landing on the plant surface. The scab disease is monocyclic; after one cycle of infection with ascospores, the fungus produces macroconidia by asexual reproduction. [5]
Signs and symptoms range widely. [3] There is usually a rash with superficial infection. [2] Fungal infection within the skin or under the skin may present with a lump and skin changes. [3] Pneumonia-like symptoms or meningitis may occur with a deeper or systemic infection. [2] Fungi are everywhere, but only some cause disease. [13]
For germination to occur using a chasmothecium, the chasmothecium must be exposed to the right environmental conditions to rupture the structure to thereby release spores in hope that they'll germinate. Germination of conidia occurs at temperatures between 7 and 31 °C and is inhibited above 33 °C.
Symptoms of the fungus are expressed on both the tassels of corn and sorghum as well as on the actual ear in the form of large smut galls. [4] When the sorghum tassel is infected, the fragile gall membrane will have a range from just a few black spores to a large mass of black spores covering the tassel. [ 4 ]
Botrytis cinerea is characterized by abundant hyaline conidia (asexual spores) borne on grey, branching tree-like conidiophores. The fungus also produces highly resistant sclerotia as survival structures in older cultures. It overwinters as sclerotia or intact mycelia, both of which germinate in spring to produce conidiophores. The conidia ...
Dermatophytosis, also known as tinea and ringworm, is a fungal infection of the skin [2] (a dermatomycosis), that may affect skin, hair, and nails. [1] Typically it results in a red, itchy, scaly, circular rash. [1] Hair loss may occur in the area affected. [1] Symptoms begin four to fourteen days after exposure. [1]
Germination of L. fungicola spores requires an external nutrient source. Even though spores of the pathogen can germinate in sterile water, germination and germ tube growth are greatly stimulated by the addition of nutrients. It was proposed that carbon is the stimulating factor. [5]
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