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学科主题临床医学
Black Yeast Diversity on Creosoted Railway Sleepers Changes with Ambient Climatic Conditions
Gumral, Ramazan1; Tumgor, Aysegul2; Saracli, Mehmet Ali1; Yildiran, Sinasi Taner1; Ilkit, Macit3; de Hoog, G. Sybren4,5,6,7,8,9,10
刊名MICROBIAL ECOLOGY
2014-11-01
DOI10.1007/s00248-014-0459-5
68期:4页:699-707
收录类别SCI
文章类型Article
WOS标题词Science & Technology
类目[WOS]Ecology ; Marine & Freshwater Biology ; Microbiology
研究领域[WOS]Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Microbiology
关键词[WOS]EXOPHIALA-DERMATITIDIS ; UNITED-STATES ; FUNGI ; ENVIRONMENTS ; HYDROCARBONS ; SPECTRUM ; DISHWASHERS ; INFECTION ; TURKEY
英文摘要

The environmental isolation of opportunistic pathogenic black yeasts, which are responsible for a wide spectrum of human infections, is essential to understanding the ecology of clinical fungi. Extreme outdoor environments polluted with aromatic hydrocarbons support the growth of black yeasts in unlikely places, such as railway sleepers. However, there are limited data concerning the diversity of these fungi growing on polluted railway sleepers. In this investigation, we examined 845 railway sleeper samples, obtained from 11 Turkish cities representing altitudes from 25 to 1,893 m, and inoculated the samples onto mycological media for the isolation of black yeasts. Ninety-four samples (11.1 %) yielded positive results for black yeast, with creosoted oak sleepers having a significantly higher number of isolates than concrete sleepers (p < 0.05). Identification based on the ribosomal DNA (rDNA) internal transcribed spacer region revealed the highest prevalence of Exophiala phaeomuriformis, followed by Exophiala dermatitidis, Exophiala heteromorpha, Exophiala xenobiotica, and Exophiala crusticola. This study revealed that railway sleepers harboring black yeasts were predominantly (> 75 %) populated with thermophilic species. We observed that altitude might have a significant effect on species diversity. Briefly, E. phaeomuriformis exhibited growth over a wide altitude range, from 30 to 1,893 m. In contrast, E. dermatitidis had a remarkable aversion to low altitudes and exhibited maximum growth at 1,285 m. In conclusion, we speculate that one can predict what species will be found on railway sleepers and their probability and that species diversity primarily depends on sleeper type and altitude height. We believe that this study can contribute new insights into the ecology of black yeasts on railway sleepers and the railway factors that influence their diversity.

语种英语
WOS记录号WOS:000344075300005
引用统计
被引频次:17[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.bjmu.edu.cn/handle/400002259/58326
专题北京大学第一临床医学院_皮肤性病科
作者单位1.Gulhane Mil Med Acad, Dept Microbiol, Ankara, Turkey
2.Adana Numune Training & Res Hosp, Dept Microbiol, Adana, Turkey
3.Cukurova Univ, Fac Med, Dept Microbiol, Div Mycol, TR-01330 Adana, Turkey
4.CBS KNAW Fungal Biodivers Ctr, Utrecht, Netherlands
5.Univ Amsterdam, Inst Biodivers & Ecosyst Dynam, Amsterdam, Netherlands
6.Peking Univ, Hlth Sci Ctr, Res Ctr Med Mycol, Beijing 100871, Peoples R China
7.King Abdulaziz Univ, Jeddah 21413, Saudi Arabia
8.Sun Yat Sen Univ, Sun Yat Sen Hosp, Guangzhou 510275, Guangdong, Peoples R China
9.Second Mil Med Univ, Changzheng Hosp, Shanghai Inst Med Mycol, Shanghai, Peoples R China
10.Univ Fed Parana, Basic Pathol Dept, Curitiba, Parana, Brazil
推荐引用方式
GB/T 7714
Gumral, Ramazan,Tumgor, Aysegul,Saracli, Mehmet Ali,et al. Black Yeast Diversity on Creosoted Railway Sleepers Changes with Ambient Climatic Conditions[J]. MICROBIAL ECOLOGY,2014,68(4):699-707.
APA Gumral, Ramazan,Tumgor, Aysegul,Saracli, Mehmet Ali,Yildiran, Sinasi Taner,Ilkit, Macit,&de Hoog, G. Sybren.(2014).Black Yeast Diversity on Creosoted Railway Sleepers Changes with Ambient Climatic Conditions.MICROBIAL ECOLOGY,68(4),699-707.
MLA Gumral, Ramazan,et al."Black Yeast Diversity on Creosoted Railway Sleepers Changes with Ambient Climatic Conditions".MICROBIAL ECOLOGY 68.4(2014):699-707.
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