Identification, genotyping, and pathogenicity of Trichosporon spp. Isolated from Giant pandas (Ailuropoda melanoleuca)

被引：7

作者：

Ma, Xiaoping ^{[1
]}

Jiang, Yaozhang ^{[1
]}

Wang, Chengdong ^{[2
]}

Gu, Yu ^{[3
]}

Gao, Sanjie ^{[1
]}

Huang, Xiaobo ^{[1
]}

Wen, Yiping ^{[1
]}

Zhao, Qin ^{[1
]}

Wu, Rui ^{[1
]}

Wen, Xintian ^{[1
]}

Yan, Qigui ^{[1
]}

Han, Xinfeng ^{[1
]}

Zuo, Zhicai ^{[1
]}

Deng, Junliang ^{[1
]}

Ren, Zhihua ^{[1
]}

Yu, Shumin ^{[1
]}

Shen, Liuhong ^{[1
]}

Zhong, Zhijun ^{[1
]}

Peng, Guangneng ^{[1
]}

Liu, Haifeng ^{[1
]}

Zhou, Ziyao ^{[1
]}

机构：

[1] Sichuan Agr Univ, Coll Vet Med, Key Lab Anim Dis & Human Hlth Sichuan Prov, Chengdu 611130, Sichuan, Peoples R China

[2] China Conservat & Res Ctr Giant Panda, Yaan 625000, Sichuan, Peoples R China

[3] Sichuan Agr Univ, Coll Life Sci, Chengdu 611130, Sichuan, Peoples R China

来源：

BMC MICROBIOLOGY | 2019年 / 19卷 / 1期

关键词：

Trichosporon; ITS; D1; D2; IGS1; Identification; Morphology; Pathogenicity; ASAHII INFECTION; MOLECULAR-IDENTIFICATION; CULTURABLE FUNGI; PATIENT;

D O I：

10.1186/s12866-019-1486-7

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

BackgroundTrichosporon is the dominant genus of epidermal fungi in giant pandas (Ailuropoda melanoleuca) and causes local and deep infections. To provide the information needed for the diagnosis and treatment of trichosporosis in giant pandas, the sequence of ITS, D1/D2, and IGS1 loci in 29 isolates of Trichosporon spp. which were isolated from the body surface of giant pandas were combination to investigate interspecies identification and genotype. Morphological development was examined via slide culture. Additionally, mice were infected by skin inunction, intraperitoneal injection, and subcutaneous injection for evaluation of pathogenicity.ResultsThe twenty-nine isolates of Trichosporon spp. were identified as 11 species, and Trichosporon jirovecii and T. asteroides were the commonest species. Four strains of T. laibachii and one strain of T. moniliiforme were found to be of novel genotypes, and T. jirovecii was identified to be genotype 1. T. asteroides had the same genotype which involved in disseminated trichosporosis. The morphological development processes of the Trichosporon spp. were clearly different, especially in the processes of single-spore development. Pathogenicity studies showed that 7 species damaged the liver and skin in mice, and their pathogenicity was stronger than other 4 species. T. asteroides had the strongest pathogenicity and might provoke invasive infection. The pathological characteristics of liver and skin infections caused by different Trichosporon spp. were similar.ConclusionsMultiple species of Trichosporon were identified on the skin surface of giant panda, which varied in morphological development and pathogenicity. Combination of ITS, D1/D2, and IGS1 loci analysis, and morphological development process can effectively identify the genotype of Trichosporon spp.

引用

页数：18

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