- Animal Virus Infections Studies
- Viral gastroenteritis research and epidemiology
- Virus-based gene therapy research
- Microbial infections and disease research
- Legume Nitrogen Fixing Symbiosis
- Plant-Microbe Interactions and Immunity
- Animal Disease Management and Epidemiology
- Plant Disease Resistance and Genetics
- Viral Infections and Immunology Research
- Soil Carbon and Nitrogen Dynamics
- Mycorrhizal Fungi and Plant Interactions
- Nematode management and characterization studies
- Plant Virus Research Studies
- Agriculture, Plant Science, Crop Management
- Agronomic Practices and Intercropping Systems
- Aquaculture disease management and microbiota
- Plant Disease Management Techniques
- Salmonella and Campylobacter epidemiology
- Microbial Community Ecology and Physiology
- Plant Pathogens and Resistance
- Plant Pathogens and Fungal Diseases
- Plant nutrient uptake and metabolism
- Allelopathy and phytotoxic interactions
- Herpesvirus Infections and Treatments
- Plant Pathogenic Bacteria Studies
University of Minnesota
2015-2025
Twin Cities Orthopedics
2014-2023
Hebrew University of Jerusalem
2020
KU Leuven
2020
Quadram Institute
2020
Minnesota Department of Health
2020
University of East Anglia
2020
Universidad Complutense de Madrid
2020
University of Minnesota System
2020
National Institutes of Health
2019
Porcine epidemic diarrhea virus (PEDV), which emerged in the United States 2013, has spread throughout North America. Limited availability of PEDV complete genomes worldwide impeded our understanding introduction into States. To determine relationship between American strains and global emerging historic strains, we sequenced analyzed 74 from America; clustered 2 distinct clades. Compared with initially reported virulent US 7 (9.7%) 4 states contained insertions deletions spike gene (S...
ABSTRACT Postweaning multisystemic wasting syndrome (PMWS) is a disease of nursery and fattening pigs characterized by growth retardation, paleness the skin, dyspnea, increased mortality rates. Porcine circovirus 2 (PCV2) has been demonstrated to be cause PMWS. However, other factors are needed for full development syndrome, porcine reproductive respiratory virus (PRRSV) infection suggested one them. Twenty-four conventional 5-week-old were distributed in four groups: control ( n = 5), PRRSV...
Beneficial microbes in the microbiome of plant roots improve health. Induced systemic resistance (ISR) emerged as an important mechanism by which selected growth–promoting bacteria and fungi rhizosphere prime whole body for ...Read More
Porcine epidemic diarrhea virus (PEDV) spread rapidly after being diagnosed in the USA April 2013. In this study we assessed whether PEDV could become airborne and if so, was infectious. Air samples were collected both from a room containing experimentally infected pigs at various distances outside of swine farms experiencing acute outbreaks. Results indicated presence infectious air genetic material detected up to 10 miles downwind naturally farms. Airborne transmission should be considered...
Abstract In February 2014, porcine deltacoronavirus (PDCoV) was identified in the United States. We developed a PDCoV real-time reverse transcription PCR that 30% of samples tested. Four additional genomes from States were sequenced; these had ≈99%–100% nt similarity to other US strains.
Incorporation of novobiocin, penicillin, and cycloheximide into a standard medium for fluorescence selects fluorescent pathogenic free-living pseudomonads.
SUMMARY: A study of the development microfloras on seeds and roots tomatoes oats during germination subsequent root showed a rapid selective multiplication seed initial stages also almost immediately after emergence. Evidence is presented that further surface population high rate was dependent normal plant. Direct microscopic observations micro‐organisms surfaces interesting differences between oats. In former, hairs young plants were free from bacteria but in even supported large numbers...
Porcine Reproductive and Respiratory Syndrome Virus (PRRSV) is the most important endemic pathogen in U.S. swine industry. Despite control efforts involving improved biosecurity different vaccination protocols, virus continues to circulate evolve. One of foremost challenges its high levels genetic antigenic diversity. Here, we quantify co-circulation, emergence sequential turnover multiple PRRSV lineages a single swine-producing region United States over span nine years (2009-2017). By...
The genetic diversity and frequent emergence of novel variants porcine reproductive respiratory syndrome virus type-2 (PRRSV) hinders control efforts, yet drivers macro-evolutionary patterns PRRSV remain poorly documented. Utilizing a comprehensive database >20,000
Fifteen 8-week-old conventional pigs were selected from a farm where suffering postweaning multisystemic wasting syndrome (PMWS). Ten of the animals diseased showing typical signs PMWS (wasting and respiratory disorders) positive for infection with porcine circovirus type 2 (PCV2), other five as controls pen-mate, apparently healthy pigs. Blood samples lymphoid tissues taken each animal haematological, serological histopathological studies. Also, cytokine mRNA expression IL-1β, IL-2, IL-4,...
S ummary The combination of autoradiography and a filter paper ‘sandwich’technique using wheat plants labelled with 14 C has shown that roots exude two types compounds, viz. (a) non‐diffusible material released from the apices both primary lateral (b) diffusible along whole length roots. high amount compared suggests former may be more significant than previously anticipated in relation to root functions microorganisms rhizosphere.
SUMMARY Ultrathin sections of rhizospheres wheat roots showed sparse colonization the root surface by microorganisms in young roots. Older at flowering stage considerable development both rhizosphere and outer cortical cells cell walls. The invasion was preceded lysis host wall, stages are illustrated. spatial relationships between clay aggregates, microorganisms, mucilaginous materials described.
S ummary In assays of acid phosphatase activity with p‐nitrophenyl phosphate as substrate, the low found in fluids removed from around roots liquid medium was not affected by presence micro‐organisms. Most intact seedling associated root surface and increased micro‐organisms rhizoplane; some experiments significantly reduced soil Inoculation pure cultures bacteria a fungus known to have did increase this roots. These results are contrasted those other workers. Possible application situation...