Mycobiota and the Contribution of Yeasts in Floor Dust of 50 Elementary Schools Characterized with Sequencing Internal Transcribed Spacer Region of Ribosomal DNA

Ju-Hyeong Park; Angela R.Lemons; Tara L.Croston

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Mycobiota and the Contribution of Yeasts in Floor Dust of 50 Elementary Schools Characterized with Sequencing Internal Transcribed Spacer Region of Ribosomal DNA

机译：Mycobiota and the Contribution of Yeasts in Floor Dust of 50 Elementary Schools Characterized with Sequencing Internal Transcribed Spacer Region of Ribosomal DNA

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The assemblage of fungi including unicellular yeasts in schools is understudied.We conducted an environmental study to characterize fungal communities in classroom floor dust.We collected 500 samples from 50 elementary schools in Philadelphia,PA,and evaluated room dampness/mold conditions.Genomic DNA from dust was extracted for internal transcribed spacer 1 Illumina MiSeq sequencing to identify operational taxonomic units(OTUs)organized from DNA sequences.Differential abundance analyses were performed to examine significant differences in abundance among groups.We identified 724 genera from 1490 OTUs.The genus Epicoccum was not diverse but the most abundant(relative abundance = 18.9%).Fungi were less diverse but most dissimilar in composition in the most water-damaged classrooms compared to the least water-damaged,indicating differential effects of individual classroom water-damage on fungal compositions.We identified 62 yeast genera,representing 19.6% of DNA sequences.Cyberlindnera was the most abundant(6.1%),followed by Cryptococcus,Aureobasidium,Rhodotorula,and Candida.The average relative abundance of yeasts tended to increase with increasing dampness and mold score and was significantly(p-value = 0.048)higher in the most water-damaged classrooms(22.4%)than the least water-damaged classrooms(18.2%).Our study suggests the need for further research on the potential health effects associated with exposures to yeasts in schools.

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《Environmental Science & Technology: ES&T》 |2022年第16期|11493-11503|共11页
作者
Ju-Hyeong Park; Angela R.Lemons; Tara L.Croston;
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作者单位

Health Effects Laboratory Division,National Institute for Occupational Safety and Health,Morgantown,West Virginia 26S0S,United States;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
原文格式 PDF
正文语种英语
中图分类环境科学、安全科学;
关键词
schools; yeasts; fungal microbiota; dampness and mold; classrooms;

Mycobiota and the Contribution of Yeasts in Floor Dust of 50 Elementary Schools Characterized with Sequencing Internal Transcribed Spacer Region of Ribosomal DNA

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