期刊
MYCOSES
卷 66, 期 6, 页码 488-496出版社
WILEY
DOI: 10.1111/myc.13574
关键词
black fungi; black yeast; cutaneous colonisation; cutaneous colonization; microbiome; opportunism
This study investigated the presence of black fungi in the skin microbiome and found that Exophiala and Cyphellophora europaea were the most common species. These fungi are often present on the skin without necessarily causing infections. The study provides insights into the presence and potential pathological role of black fungi in the human body.
BackgroundThe skin is the first line of defence against communities of resident viruses, bacteria and fungi. The composition of the microbiome might change with factors related to the environment and host. The microbiome is dominated by bacteria. Dermatophytes and yeasts are the predominant fungi that are also involved in opportunistic infections of skin, hair and nails. Among environmental fungi, Chaetothyriales (black yeasts and relatives) are enriched by hydrocarbon pollution in domesticated habitats and comprise numerous species that cause mild-to-severe disease. MethodsWe investigated the presence of black fungi in the skin microbiome by conducting an analysis in the publicly available metagenomic SRA database (NCBI). We focused on the causative agents of chromoblastomycosis and phaeohyphomycosis and used barcodes and padlock probe sequences as diagnostic tools. ResultsA total of 132,159,577 MB was analysed and yielded 18,360 reads that matched with 24 species of black fungi. Exophiala was the most prevalent genus, and Cyphellophora europaea was the most abundant species. ConclusionThis study reveals the abundant presence of Chaetothyriales on the skin without necessarily being associated with infection. Most of the detected causal agents are known from mild skin diseases, while also species were revealed that had been reported from CARD9-deficient patients.
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