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Pneumonia-like symptoms or meningitis may occur with a deeper or systemic infection. [2] Fungi are everywhere, but only some cause disease. [13] Fungal infection occurs after spores are either breathed in, come into contact with skin or enter the body through the skin such as via a cut, wound or injection. [3]
Mucormycosis, also known as black fungus, [3] [4] is a severe fungal infection [11] that comes under fulminant fungal sinusitis, [12] usually in people who are immunocompromised. [9] [13] It is curable only when diagnosed early. [12] Symptoms depend on where in the body the infection occurs.
Fusarium wilt is a common vascular wilt fungal disease, exhibiting symptoms similar to Verticillium wilt. This disease has been investigated extensively since the early years of this century. The pathogen that causes Fusarium wilt is Fusarium oxysporum (F. oxysporum). [1] The species is further divided into formae speciales based on host plant.
Knowing the disease cycle of each microbial agent also helps in managing leaf spot disease. [2] Fungal leaf spot pathogens follow the path of attaching to the plant surface, germinating via spores and entering into the host tissue. Colonisation of the host tissue follows and then the expression of symptoms. [14]
Some Aspergillus species cause disease on grain crops, especially maize, and synthesize mycotoxins including aflatoxin. Aspergillosis is the group of diseases caused by Aspergillus. The symptoms include fever, cough, chest pain or breathlessness. Usually, only patients with weakened immune systems or with other lung conditions are susceptible. [1]
The fungus zoospores can survive within a temperature range of 4–25 °C (39–77 °F) and a pH range of 6–7. [21] Chytridiomycosis is believed to follow this course: zoospores first encounter amphibian skin and quickly give rise to sporangia, which produce new zoospores. [23] The disease then progresses as these new zoospores reinfect the host.
Fungal pneumonia is an infection of the lungs by fungi. It can be caused by either endemic or opportunistic fungi or a combination of both. Case mortality in fungal pneumonias can be as high as 90% in immunocompromised patients, [ 1 ] [ 2 ] though immunocompetent patients generally respond well to anti-fungal therapy.
Powdery mildew is a fungal disease that affects a wide range of plants. Powdery mildew diseases are caused by many different species of ascomycete fungi in the order Erysiphales . Powdery mildew is one of the easier plant diseases to identify, as the signs of the causal pathogen are quite distinctive.
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