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Fungal Spore Richness and Abundance of Allergenic Taxa: Comparing a Portable Impactor and Passive Trap Indoors and Outdoors in an Urban Setting.
Minahan, Nicholas T; Chen, Chi-Hsien; Chuang, Yu-Chen; Tsai, Kun-Hsien; Shen, Wei-Chiang; Guo, Yue Leon.
Afiliación
  • Minahan NT; Institute of Environmental and Occupational Health Sciences, National Taiwan University, Taipei, Taiwan.
  • Chen CH; National Institute of Environmental Health Sciences, National Health Research Institutes, Miaoli, Taiwan.
  • Chuang YC; Department of Environmental and Occupational Medicine, National Taiwan University (NTU) College of Medicine and NTU Hospital, Taipei, Taiwan.
  • Tsai KH; Department of Environmental and Occupational Medicine, National Taiwan University (NTU) College of Medicine and NTU Hospital, Taipei, Taiwan.
  • Shen WC; Institute of Environmental and Occupational Health Sciences, National Taiwan University, Taipei, Taiwan.
  • Guo YL; Department of Plant Pathology and Microbiology, National Taiwan University, Taipei, Taiwan.
Microb Ecol ; 87(1): 45, 2024 Feb 23.
Article en En | MEDLINE | ID: mdl-38393401
ABSTRACT
Fungal spores are common airborne allergens, and fungal richness has been implicated in allergic disease. Amplicon sequencing of environmental DNA from air samples is a promising method to estimate fungal spore richness with semi-quantification of hundreds of taxa and can be combined with quantitative PCR to derive abundance estimates. However, it remains unclear how the choice of air sampling method influences these estimates. This study compared active sampling with a portable impactor and passive sampling with a passive trap over different durations to estimate fungal spore richness and the abundance of allergenic taxa. Air sampling was conducted indoors and outdoors at 12 residences, including repeated measurements with a portable impactor and passive traps with 1-day and 7-day durations. ITS2 amplicon sequence data were transformed to spore equivalents estimated by quantitative PCR, repeated active samples were combined, and abundance-based rarefaction was performed to standardize sample coverage for estimation of genus-level richness and spore abundance. Rarefied fungal richness was similar between methods indoors but higher for passive traps with a 7-day duration outdoors. Rarefied abundance of allergenic genera was similar between methods but some genera had lower abundance for passive traps with a 1-day duration, which differed indoors and outdoors indicating stochasticity in the collection of spores on collocated samplers. This study found that similar estimates of fungal spore richness and abundance of allergenic taxa can be obtained using a portable impactor or a passive trap within one day and that increased passive sample duration provides limited additional information.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Alérgenos / Hongos Idioma: En Revista: Microb Ecol Año: 2024 Tipo del documento: Article País de afiliación: Taiwán Pais de publicación: Estados Unidos

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Alérgenos / Hongos Idioma: En Revista: Microb Ecol Año: 2024 Tipo del documento: Article País de afiliación: Taiwán Pais de publicación: Estados Unidos