Modern urbanization has reshaped the bacterial microbiome profiles of house dust in domestic environments.
House dust bacteria
Level of urbanization
Occupants
Pet
Journal
The World Allergy Organization journal
ISSN: 1939-4551
Titre abrégé: World Allergy Organ J
Pays: United States
ID NLM: 101481283
Informations de publication
Date de publication:
Aug 2020
Aug 2020
Historique:
received:
29
11
2019
revised:
17
07
2020
accepted:
24
07
2020
entrez:
5
9
2020
pubmed:
5
9
2020
medline:
5
9
2020
Statut:
epublish
Résumé
The prevalence of allergy and other common chronic diseases is higher in developed than developing countries, and higher in urban than rural regions. Urbanization through its modification of environmental microbiomes may play a predominant role in the development of these conditions. However, no studies have been conducted to compare the microbiome in house dust among areas with different urbanization levels. House dust from Xinxiang rural area (XR, n = 74), Xinxiang urban area (XU, n = 33), and Zhengzhou urban area (ZU, n = 32) in central China, and from Australia (AU, n = 58 [with pets AUP, n = 15, without pets AUNP, n = 43]) were collected during a summer season in China and Australia. High-throughput sequencing of 16S rDNA was employed to profile house dust bacterial communities. Settled dust collected in China was dominant with 2 bacterial phyla: Proteobacteria and Actinobacteria, while floor dust collected in Australia had a higher proportion of phylum Proteobacteria, Firmicutes, and Actinobacteria. XR dust samples presented higher bacterial richness and diversity compared with XU or ZU samples. Urbanization level (r There was a significant difference in house dust microbiota among different urbanization areas. The areas with a lower urbanization level presented higher dust-borne bacterial richness and diversity. Modern urbanization has a significant influence on the bacterial microbiome profiles of indoor dust.
Sections du résumé
BACKGROUND
BACKGROUND
The prevalence of allergy and other common chronic diseases is higher in developed than developing countries, and higher in urban than rural regions. Urbanization through its modification of environmental microbiomes may play a predominant role in the development of these conditions. However, no studies have been conducted to compare the microbiome in house dust among areas with different urbanization levels.
METHODS
METHODS
House dust from Xinxiang rural area (XR, n = 74), Xinxiang urban area (XU, n = 33), and Zhengzhou urban area (ZU, n = 32) in central China, and from Australia (AU, n = 58 [with pets AUP, n = 15, without pets AUNP, n = 43]) were collected during a summer season in China and Australia. High-throughput sequencing of 16S rDNA was employed to profile house dust bacterial communities.
RESULTS
RESULTS
Settled dust collected in China was dominant with 2 bacterial phyla: Proteobacteria and Actinobacteria, while floor dust collected in Australia had a higher proportion of phylum Proteobacteria, Firmicutes, and Actinobacteria. XR dust samples presented higher bacterial richness and diversity compared with XU or ZU samples. Urbanization level (r
CONCLUSION
CONCLUSIONS
There was a significant difference in house dust microbiota among different urbanization areas. The areas with a lower urbanization level presented higher dust-borne bacterial richness and diversity. Modern urbanization has a significant influence on the bacterial microbiome profiles of indoor dust.
Identifiants
pubmed: 32884612
doi: 10.1016/j.waojou.2020.100452
pii: S1939-4551(20)30355-0
pii: 100452
pmc: PMC7451671
doi:
Types de publication
Journal Article
Langues
eng
Pagination
100452Informations de copyright
© 2020 The Authors.
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