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Effect of Site Productivity and Disturbance on Microbial Compositions in the Built Environment.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Effect of Site Productivity and Disturbance on Microbial Compositions in the Built Environment./
作者:	Nannini, Kaelyn Ann Hall.
面頁冊數:	1 online resource (37 pages)
附註:	Source: Masters Abstracts International, Volume: 85-01.
Contained By:	Masters Abstracts International85-01.
標題:	Bioinformatics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30574948click for full text (PQDT)
ISBN:	9798379953041

Effect of Site Productivity and Disturbance on Microbial Compositions in the Built Environment.
Nannini, Kaelyn Ann Hall.

Effect of Site Productivity and Disturbance on Microbial Compositions in the Built Environment. - 1 online resource (37 pages)

Source: Masters Abstracts International, Volume: 85-01.

Thesis (M.S.)--San Diego State University, 2023.

Includes bibliographical references

Microorganisms are ubiquitous in every environment, including built environments (BEs). However, our understanding of the environmental conditions impacting microbial growth and diversity in the BE is still largely based on observational studies. In this study, we use an experimental approach to test how site productivity and disruption affect bacterial and fungal communities within the built environment. Specifically, we determined how different moisture conditions (constant humidity vs. wet-dry cycling) impacted growth and diversity of microbial communities on three common building materials: gypsum wallboard (GW), medium-density fiberboard (MDF), and oriented strand board (OSB), over 7 weeks. Microbial growth was measured using culture-independent microscopic cell counting of bacteria cells, and spore counting and hyphae length measurements for fungi. Community composition was determined via bioinformatic analysis of amplicon sequencing libraries for bacteria (16S) and fungi (ITS). Moisture availability had significant effects on growth for both fungal and bacterial communities. Bacterial and fungal biomass were lower on coupons that were disturbed compared to undisturbed coupons. Disturbance also significantly impacted bacterial richness, evenness, and community composition, with disturbed communities exhibiting higher evenness over time and lower richness, specifically on OSB. Fungal richness and evenness were not affected by disturbance; however, there was a significant effect due to material type, with GW being the most even. By the final timepoint, bacterial communities also showed high similarity between disturbed coupons while less similarity on undisturbed coupons. Community composition was also affected by disturbance for fungal communities, but not to the same extent as the bacterial communities.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798379953041Subjects--Topical Terms:

553671
Bioinformatics.
Subjects--Index Terms:

Microbial communitiesIndex Terms--Genre/Form:

542853
Electronic books.

Effect of Site Productivity and Disturbance on Microbial Compositions in the Built Environment.
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