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Trichophyton rubrum

Trichophyton rubrum species are causative agents of Dermatophytosis, Onychomycosis, Tinea barbae, Tinea capitis, Tinea corporis, Tinea cruris, Tinea faciei, Tinea pedis, and Tinea unguium.

(Information from @ 2005)



Trichophyton rubrum Mold Pictures

Trichophyton rubrum microsopic morphology

(Image Courtesy of @ 2005)


Microscopic morphology of Trichophyton rubrum showing the production of scanty to moderate numbers of slender clavate to pyriform microconidia.

Trichophyton rubrum colony morphology

(Image Courtesy of @ 2005)


Colony morphology of Trichophyton rubrum showing a downy - type texture on Kaminski's Lactritmel agar.


Trichophyton rubrum

(Image Courtesy of @ 2005)


Skin lesion due to Trichophyton rubrum.




Trichophyton rubrum is the most widespread among the anthropophilic dermatophytes.  Anthropophilic dermatophyte is found in association with humans.


Pathogenicity and Health Effects

Trichophyton rubrum is the most common agent of tinea of the feet, hands, nails, groin, and the glabrous skin, however, the scalp is rarely infected.  Animals are very infrequently infected as well. 


Macroscopic Appearance

      Growth rate is slow to moderately rapid and texture of colonies ranges from downy to powdery; and

      Surface colony color is white to pale pink while reverse is usually wine red, however at times, the color ranges from red, brown, violet, yellow or even uncolored.


Microscopic Appearance

      Presence of microconidia is numerous to rare, club shaped to pyriform, may be found solitary along the hyphae or sometimes in clusters, and are unicellular; and

      Microconidia are frequently absent; pencil to cigar shaped, and are multi - septate. 

The mycological information gathered and organized in this extensive research on different Pathogenic Molds was sourced out from the list of informative websites and reference below:

A Clinical Laboratory Handbook: Identifying Filamentous
by St. Germain, Guy and R. Summerbell.

Mold in the Bible

Mold is NOT a new problem for humans. Read the
Bible at
Leviticus 14:45 "A house desecrated by mildew, mold, or fungus would be a defiled place to live in,
so drastic measures had to be taken.
" Mold damage,
mold contamination, and mold infestation  have always
been threats to people, animals, and plants. Mold Prevention is always needed.
"The way to control indoor mold growth is to control moisture, reports the U.S. Environmental Protection Agency. To keep indoor humidity in the mold-safe 30-40%, use our Surround Air Dehumidifier.
Top 10 Mold Mistakes. See Mold Growth Photo's.
Mold Home Remedy Recipes. Read Bleach Mold Myth  Mold Health Problem.

Browse these Webpages for more Trichophyton species information:
[Trichophyton concentricum]
[Trichophyton equinum]
[Trichophyton megninii]
[Trichophyton mentagrophytes]
[Trichophyton rubrum]
[Trichophyton schoenleinii]
[Trichophyton soudanense]
[Trichophyton tonsurans]
[Trichophyton verrucosum]
[Trichophyton violaceum]
[Trichophyton yaoundei]


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