DTM will turn red within a few days when a dermatophytic fungus is present. Dermatophytes include Trichophyton spp, Microsporum spp, and Epidermophyton spp. The RSM side will induce the organisms to produce spores (macroconidia) which can be viewed microscopically for identification.
RSM is also useful for observing the true pigment formation of the colony. The media will turn blue to blue-green in the presence of dermatophytes. DTM tends to mask the coloration due to the intense red coloration. Also, DTM does not induce the rapid formation of spores. This is why the DTM/RSM makes a perfect combination for the identification of dermatophytic fungi. Packed ten plates per bag. Store at 2 to 8 degrees C.
Derm-Duet™ II – Catalog no. J175
Each plate is individually wrapped and can be stored at room temperature.