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Fungal species can be called saprophytic, parasitic or mutualistic. Mutualistic fungi have obligatory associations with microorganisms without which the fungi cannot complete it's own life cycle. Mutualistic fungi are non-pathogenic.

 

Fungal species can be called saprophytic, parasitic or mutualistic. Mutualistic fungi have obligatory associations with microorganisms without which the fungi cannot complete it's own life cycle. Mutualistic fungi are non-pathogenic. For more detailed information on types of fungi, please see [[Types of Fungi]].

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===Fungal Structure===

===Fungal Structure===

If the mycosis is restricted to superficial tissues, this can be classified as either dermatomycoses or dermatophytoses. Dermatomycoses are usually opportunistic infections of the skin or muco-cutaneous junctions. Often this is caused by ''Candida'' species or ''Malassezia pachydermatis''. Dermatophytoses are clinically more important than dermatomycoses as they are zoonotic and are often associated with the invasion and destruction of keratinised structures such as ''Microsporum'' species and ''Trichophyton'' species. See link for more detailed information on [[dermatophytosis]].<br />

If the mycosis is restricted to superficial tissues, this can be classified as either dermatomycoses or dermatophytoses. Dermatomycoses are usually opportunistic infections of the skin or muco-cutaneous junctions. Often this is caused by ''Candida'' species or ''Malassezia pachydermatis''. Dermatophytoses are clinically more important than dermatomycoses as they are zoonotic and are often associated with the invasion and destruction of keratinised structures such as ''Microsporum'' species and ''Trichophyton'' species. See link for more detailed information on [[dermatophytosis]].<br />

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Subcutaneous often result following penetration of a foreign body through the superficial layers of the dermis. Systemic mycoses often originate in the respiratory or digestive tracts from opportunistic infections. Factors such as antimicrobial therapy, viral infection or other immuno-suppressors increase the predisposing rick factors to fungal infection.

Subcutaneous infections often result following penetration of a foreign body through the superficial layers of the dermis. Systemic mycoses often originate in the respiratory or digestive tracts from opportunistic infections. Factors such as antimicrobial therapy, viral infection or other immuno-suppressors increase the predisposing rick factors to fungal infection.

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Yeasts are mainly differentiated based on colonial appearance and the size and shape of individual cells. There are also some biochemical tests that can be used for differentiation including ELISA.

Yeasts are mainly differentiated based on colonial appearance and the size and shape of individual cells. There are also some biochemical tests that can be used for differentiation including ELISA.