Biological Characteristics of Microsporum canis isolated from canine dermatophytosis

Han, Ki-ok; Choi, Won-pil

Korean Journal of Veterinary Research 2001;41(2):167-172.

Ki-ok Han, Won-pil Choi

College of Veterinary Medicine, Kyungpook National University

개 피부병 유래의 Microsporum canis의 생물학적 성상

한기옥, 최원필

경북대학교 수의과대학

Abstract

The present study was conducted to examine morphological and biological characteristics of 57 strains of Microsporum canis isolated from 110 dogs with dermatophytosis in Taegu, 1999. Isolated strains of M canis were classified into 4 types(A: white-yellow type, B: fluffy type, C: flat type, D: radial groove type) according to their pigmentation and morphology of colonies with typical conidia and hyphae. Some strains of A and B type happened variation by subculture for 6~8 months. The variation strains were classified into 3 types(E, F, G), E type had aberrant macroconidia with typical macroconidia, F type had aberrant hyphae(like dumb-bell) and macroconidia, and G type had no conidia and racket hyphae. All strains showed positive urease test, rice medium growth test and hair perforation test.

Key Words: dermatophytosis, Microsporum canis, dogs, variants