ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2017, Vol. 48 ›› Issue (12): 2383-2391.doi: 10.11843/j.issn.0366-6964.2017.12.018

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Isolation, Identification and Drug Resisitance Analysis of Yeast from Hair of Ailuropoda melanoleuca

MA Xiao-ping1, XIANG Qi1, WANG Cheng-dong2*, CAO San-jie1, LING Shan-shan2, GU Yu3*   

  1. 1. College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China;
    2. China Conservation and Research Center for the Giant Panda, Ya'an, 625000, China;
    3. College of Life Sciences, Sichuan Agricultural University, Chengdu 611130, China
  • Received:2017-05-22 Online:2017-12-23 Published:2017-12-23

Abstract:

In order to investigate species and genus distribution of yeast on hairs of giant panda and their pathogenicity on mice, thirty-seven hair samples of giant panda were collected and 45 isolates of yeast were isolated from the samples with traditional microbial isolation method. PCR amplification on the strains using the universal fungi primer of ITS1 and ITS4 and phylogenetic analysis were performed. And the 45 isolates belonged to 12 species. Drug sensitive qualitative test of 12 species of yeast were researched using 5 kinds of clinical commonly antifungal medicines by the Danish Rosco disc diffusion method. The results indicated that 12 species of yeast were isolated, including Trichosporon cutaneum, Trichosporon moniliiforme, Trichosporon interdigitale, Trichosporon akiyoshidainum, Trichosporon asteroids, Trichosporon brassicae, Trichosporon guehoae, Trichosporon jirovecii, Trichosporon montevideense, Trichosporon sp., Candida catenulate and Cryptococcus fragicola. Most of the yeast strains were sensitive to 5 kinds of antifungal drugs. C. fragicola was resistant to ketoconazole, C. catenulate and T. interdigitale were resistant to amphotericin B, C. catenulate and T. jirovecii were resistant to itraconazole, Trichosporon sp. was resistant to fluconazole,C. catenulate, T. interdigitale, T. guehoae and T. cutaneum were resistant to nystati. T. cutaneum, T. interdigitale, T. asteroids, C. fragicola were pathogenic to mice, and other isolates of yeasts were opportunistic pathogenicity. Various yeast species exist in surface of giant panda, and they have different drug sensitivity to fungicides. These results have greatly enriched the understanding of the yeast on hair of giant panda,will provide a reference for the dermatomycoses diagnosis and treatment of giant panda.

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