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2015 ; 282
(1814
): ä Nephropedia Template TP
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The ecology of microscopic life in household dust
#MMPMID26311665
Barberán A
; Dunn RR
; Reich BJ
; Pacifici K
; Laber EB
; Menninger HL
; Morton JM
; Henley JB
; Leff JW
; Miller SL
; Fierer N
Proc Biol Sci
2015[Sep]; 282
(1814
): ä PMID26311665
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We spend the majority of our lives indoors; yet, we currently lack a
comprehensive understanding of how the microbial communities found in homes vary
across broad geographical regions and what factors are most important in shaping
the types of microorganisms found inside homes. Here, we investigated the fungal
and bacterial communities found in settled dust collected from inside and outside
approximately 1200 homes located across the continental US, homes that represent
a broad range of home designs and span many climatic zones. Indoor and outdoor
dust samples harboured distinct microbial communities, but these differences were
larger for bacteria than for fungi with most indoor fungi originating outside the
home. Indoor fungal communities and the distribution of potential allergens
varied predictably across climate and geographical regions; where you live
determines what fungi live with you inside your home. By contrast, bacterial
communities in indoor dust were more strongly influenced by the number and types
of occupants living in the homes. In particular, the female : male ratio and
whether a house had pets had a significant influence on the types of bacteria
found inside our homes highlighting that who you live with determines what
bacteria are found inside your home.
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