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EXAMINATION OF SOME PROPERTIES OF DERMATOPHYTES FOR LONG‐TERM PRESERVATION USING PERIODIC TRANSFER METHOD
Author(s) -
Kinbara Takeshi,
Mashimo Masami,
Fukushiro Ryoichi
Publication year - 1983
Publication title -
the journal of dermatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 65
eISSN - 1346-8138
pISSN - 0385-2407
DOI - 10.1111/j.1346-8138.1983.tb01115.x
Subject(s) - dermatophyte , agar , trichophyton , microsporum canis , biology , mating type , microbiology and biotechnology , microsporum gypseum , mating , trichophyton rubrum , zoology , bacteria , genetics , antifungal , gene
Seventy‐two strains from species of dermatophytes which had been transferred periodically on Sabouraud's dextrose agar for more than ten years were examined for their morphology, physiological activities and biological properties. Of 42 strains of Trichophyton rubrum , 17 (40.4%) were positive for pigment production on Sabouraud's dextrose agar. In mating experiments, 15 (79%) of 19 strains tested were compatible with Arthroderma simii and proved to be of the “—” mating type. Eight (67%) of 12 strains in the Microsporum gypseum complex were positive for macroconidium formation. In mating experiments, 4 of 12 strains proved to be Nannizzia gypsea of the “+” type, 3 to be of the “—” type, and one to be N. incurvata of the “—” type. Most of the 18 strains in the T. mentagrophytes complex and M. canis have been maintained with alterations.