Indoor wet cells as a habitat for melanized fungi, opportunistic pathogens on humans and other vertebrates

Xiaofang Wang, Wenying Cai, A. H.G.Gerrits Van Den Ende, Junmin Zhang, Ting Xie, Liyan Xi, Xiqing Li, Jiufeng Sun, Sybren De Hoog

Research output: Contribution to journal/periodicalArticleScientificpeer-review

17 Citations (Scopus)

Abstract

Indoor wet cells serve as an environmental reservoir for a wide diversity of melanized fungi. A total of 313 melanized fungi were isolated at five locations in Guangzhou, China. Internal transcribed spacer (rDNA ITS) sequencing showed a preponderance of 27 species belonging to 10 genera; 64.22% (n = 201) were known as human opportunists in the orders Chaetothyriales and Venturiales, potentially causing cutaneous and sometimes deep infections. Knufia epidermidis was the most frequently encountered species in bathrooms (n = 26), while in kitchens Ochroconis musae (n = 14), Phialophora oxyspora (n = 12) and P. europaea (n = 10) were prevalent. Since the majority of species isolated are common agents of cutaneous infections and are rarely encountered in the natural environment, it is hypothesized that indoor facilities explain the previously enigmatic sources of infection by these organisms.
Original languageEnglish
JournalScientific Reports
Volume8
Issue number1
DOIs
Publication statusPublished - 01 Dec 2018

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