A5062571862- Indoor Air Quality and Microbial Exposure
- Plant Pathogens and Fungal Diseases
- Odor and Emission Control Technologies
- Air Quality and Health Impacts
- Mycorrhizal Fungi and Plant Interactions
- Pediatric health and respiratory diseases
- Gut microbiota and health
- Advanced Chemical Sensor Technologies
- Urban Green Space and Health
- Lichen and fungal ecology
- Infection Control and Ventilation
- Health, psychology, and well-being
- Plant and animal studies
- Ecology and Vegetation Dynamics Studies
- Conservation Techniques and Studies
- Species Distribution and Climate Change
- Asthma and respiratory diseases
- Genetic diversity and population structure
- Air Quality Monitoring and Forecasting
- Forest Ecology and Biodiversity Studies
- Building Energy and Comfort Optimization
- Fungal Biology and Applications
- Animal Ecology and Behavior Studies
- Building materials and conservation
- Genomics and Phylogenetic Studies
University of California, Berkeley
2006-2021
California Department of Public Health
2018-2021
University of California System
2012-2021
Berkeley College
2021
Indoor Biotechnologies (United States)
2019-2020
Jen-Ai Hospital
2019-2020
Fribourg Development Agency
2020
Loyola Marymount University
2020
Ferro (United States)
2019
Pennsylvania State University
2018
Abstract The indoor microbiome is a complex system that thought to depend on dispersal from the outdoor biome and occupants’ combined with selective pressures imposed by behaviors building itself. We set out determine pattern of fungal diversity composition in air local scale identify processes behind pattern. surveyed airborne assemblages within 1-month time periods at two seasons, high replication, indoors outdoors, across standardized residences university housing facility. Fungal were...
Human occupants are an important source of microbes in indoor environments. In this study, we used DNA sequencing filter samples to assess the fungal and bacterial composition air environmental chamber under different levels occupancy, activity, exposed or covered carpeting. office-like, mechanically ventilated environment, results showed a strong influence outdoor-derived particles, with microbial tracking that outdoor for 2-hour sampling periods. The number their activity played...
Buildings represent habitats for microorganisms that can have direct or indirect effects on the quality of our living spaces, health, and well-being. Over last ten years, new research has employed sophisticated tools, including DNA sequencing-based approaches, to study microbes found in buildings overall built environment. These investigations catalyzed insights into questions about surround us daily lives. The emergence "microbiology environment" field required bridging disciplines,...
The predominant hypothesis regarding the composition of microbial assemblages in indoor environments is that fungal are structured by outdoor air with a moderate contribution surface growth, whereas bacterial represent mixture bacteria entered from air, shed building inhabitants, and grown on surfaces. To test aspect this hypothesis, we sampled fungi three types likely to support growth therefore possible contributors air: drains kitchens bathrooms, sills beneath condensation-prone windows,...
ABSTRACT Given that epiphytic microbes are often found in large population sizes on plants, we tested the hypothesis plants quantitatively important local sources of airborne microorganisms. The abundance microbial communities, determined by quantifying bacterial 16S RNA genes and fungal internal transcribed spacer (ITS) region, air collected directly above vegetation was 2- to 10-fold higher than simultaneously an adjacent nonvegetated area 50 m upwind. Nonmetric multidimensional scaling...
Humans are a prominent source of airborne biological particles in occupied indoor spaces, but few studies have quantified human bioaerosol emissions. The chamber investigation reported here employs fluorescence-based technique to evaluate bioaerosols with high temporal and particle size resolution. In 75-m(3) chamber, occupant emission rates coarse (2.5-10 μm) fluorescent aerosol (FBAPs) under seated, simulated office-work conditions averaged 0.9 ± 0.3 million per person-h. Walking was...
Genetic analysis of indoor air has uncovered a rich microbial presence, but rarely have both the bacterial and fungal components been examined in same samples. Here we present study that component passively settled microbes from outdoor over discrete time period for which already reported. Dust was allowed to settle five common locations around home − living room, bedroom, bathroom, kitchen, balcony at different dwellings within university-housing complex one-month two points, once summer...
Knowledge of the factors controlling diverse chemical emissions common environmental bacteria and fungi is crucial because they are important signal molecules for these microbes that also could influence humans. We show here not only a high diversity mVOCs but their abundance can differ greatly in different contexts. Microbial volatiles exhibit dynamic changes across microbial growth phases, resulting variance composition emission rate species-specific generic mVOCs. In vitro experiments...
The fully sequenced genomes of four species within the Saccharomyces sensu stricto complex provide a wealth information for molecular-evolutionary inference. Yet virtually nothing is known about population-genetic variation these species, including molecular-biological and genetic-model organism S. cerevisiae. Here we investigate population structure cerevisiae by sequencing loci CDC19, PHD1, FZF1 SSU1 in 27 strains. Sequence analysis demonstrates distinct cerevisiae, distinguishing strains...
Introduction: Planet and America, Set Subset by Wai Chee Dimock 1 PART ONE: The Field, the Nation, World 17 Chapter 1: Global Babel: Language in American Literature Jonathan Arac 19 2: Deterritorialization of Paul Giles 39 3: Unthinking Manifest Destiny: Muslim Modernities on Three Continents bySusan Stanford Friedman 62 TWO: Eastern Europe as Test Case 101 4: Mr. Styron's Eric J. Sundquist 103 5: Planetary Circles: Philip Roth, Emerson, Kundera Ross Posnock 141 THREE: Local 169 6: Bank...
Abstract The deadly poisonous Amanita phalloides is common along the west coast of North America. Death cap mushrooms are especially abundant in habitats around San Francisco Bay, California, but species grows as far south Los Angeles County and north to Vancouver Island, Canada. At different times, various authors have considered either native or introduced, question whether A. an invasive remains unanswered. We developed four novel loci used these combination with EF1α IGS explore...
In seasonally dry tropical forests, tree species can be deciduous, remaining without leaves throughout the season, or evergreen, retaining their season. Deciduous and evergreen trees specialize in habitats that differ water availability (hillside riparian forest, respectively) exposure to herbivore attack (seasonal continuous, respectively). We asked whether syndromes of leaf traits deciduous were consistent with hypothesized abiotic biotic selective pressures respective habitat. measured...
Purpose: During care transitions, the movement of patients from one healthcare practitioner or setting to another, are vulnerable serious lapses in quality and safety their medical care. The Care Transitions Intervention (CTI), a 4-week, low-cost, low-intensity self-management program designed provide discharged acute with skills, tools, support transition coach ensure that health needs met, was implemented 10 hospital–community-based partnership sites California over 12-month period. Five...
Rates of ecosystem nitrogen (N) cycling may be mediated by the presence ectomycorrhizal fungi, which compete directly with free-living microbes for N. In regenerating tropical dry forests Central America, distribution trees is affected succession and soil parent material, both exert independent influence over N fluxes. order to quantify these interacting controls, we used a scale-explicit sampling strategy examine at scales ranging from microsite level. We measured fungal community...
Settled airborne dust is used as a surrogate for exposure in studies that explore indoor microbes. In order to determine whether detecting differences environments would depend on the sampler type, we compared different passive, settled sampling approaches with respect displaying qualitative and quantitative aspects of bacterial fungal microbiota. approaches—utilizing plastic petri dishes, TefTex material, electrostatic dustfall collectors (EDCs)—were evaluated spaces USA Finland an...
Carpet and rugs currently represent about half of the United States flooring market offer many benefits as a type. How carpets influence our exposure to both microorganisms chemicals in indoor environments has important health implications but is not well understood. The goal this manuscript consolidate what known how carpet impacts chemistry microbiology, identify research gaps that remain. After describing current use indoors, questions focus on five specific areas: 1) chemistry, 2) 3)...
Sequence-based surveys of microorganisms in varied environments have found extremely diverse assemblages. A standard practice current high-throughput sequence (HTS) approaches microbial ecology is to the composition many environmental samples at once by pooling amplicon libraries a common concentration before processing on one run sequencing platform. Biomass target taxa, however, not typically determined prior HTS, and here, we show that when abundances differ large degree, this can lead...
The limited understanding of microbial characteristics in moisture-damaged buildings impedes efforts to clarify which adverse health effects the occupants are associated with damage and develop effective building intervention strategies. objectives this current study were (i) characterize fungal bacterial microbiota house dust severely residences, (ii) identify taxa moisture renovations, (iii) test whether associations between identified replicable another cohort homes. We applied 16S rRNA...
Microorganisms influence the chemical milieu of their environment, and metabolites can affect ecological processes. In built environments, where people spend majority time, very little is known about how surface-borne microorganisms chemistry indoor spaces. Here, we applied multidisciplinary approaches to investigate aspects microbiology in a house. We characterized microbial composition two common frequently wet surfaces residential setting: kitchen sink bathroom shower. Microbial...