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Utah State University

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2009

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Articles 91 - 116 of 116

Full-Text Articles in Life Sciences

Mountain Beebalm In The Landscape, Heidi Kratsch, Graham Hunter Jan 2009

Mountain Beebalm In The Landscape, Heidi Kratsch, Graham Hunter

CWEL Extension Fact Sheets

No abstract provided.


Apache Plume In The Landscape, Heidi Kratsch, Graham Hunter Jan 2009

Apache Plume In The Landscape, Heidi Kratsch, Graham Hunter

CWEL Extension Fact Sheets

No abstract provided.


Firecracker Penstemon In The Landscape, Heidi Kratsch, Graham Hunter Jan 2009

Firecracker Penstemon In The Landscape, Heidi Kratsch, Graham Hunter

CWEL Extension Fact Sheets

No abstract provided.


Prince’S Plume In The Landscape, Heidi Kratsch, Graham Hunter Jan 2009

Prince’S Plume In The Landscape, Heidi Kratsch, Graham Hunter

CWEL Extension Fact Sheets

No abstract provided.


A Survey Of Apomixis And Ploidy Levels Among Poa L. (Poaceae) Using Flow Cytometry, Alicia Michelle Kelley, Paul G. Johnson, Blair L. Waldron, Michael D. Peel Jan 2009

A Survey Of Apomixis And Ploidy Levels Among Poa L. (Poaceae) Using Flow Cytometry, Alicia Michelle Kelley, Paul G. Johnson, Blair L. Waldron, Michael D. Peel

CWEL Publications

Poa is a complex genus taxonomically and genetically. As a result, relatively little information exists for this economically important genus with regards to reproductive mode and variability in chromosome number. We examined apomixis frequency and ploidy levels in 83 Poa accessions representing 33 species from the National Plant Germplasm System using flow cytometric techniques. In reproductive mode analysis, we analyzed at least three preparations of 50 seeds each from the accessions. In ploidy level analysis, at least three plants of each accession were analyzed. Sixty percent of the species had at least one apomictic or facultative apomictic accession; 40% were …


A Recombinant,Infectious Human Parainfluenza Virus Type 3 Expressing The Enhanced Green Fluorescentprotein For Use In High-Throughput Antiviral Assays, J. P. Roth, J. K. Li, Donald F. Smee, John D. Morrey, Dale L. Barnard Jan 2009

A Recombinant,Infectious Human Parainfluenza Virus Type 3 Expressing The Enhanced Green Fluorescentprotein For Use In High-Throughput Antiviral Assays, J. P. Roth, J. K. Li, Donald F. Smee, John D. Morrey, Dale L. Barnard

Animal, Dairy, and Veterinary Science Faculty Publications

The ability to rescue an infectious, recombinant, negative-stranded, RNA virus from a cDNA clone, has led to new opportunities for measuring viral replication from a viral expressed reporter gene. In this study, the enhanced green fluorescent protein (EGFP) gene was inserted into the human parainfluenza virus type 3 (HPIV-3) antigenome and a recombinant, infectious virus was rescued. Maximum EGFP expression levels, measured by fluorescence, were seen at day 3. Comparison of a three-day, viral expressed EGFP fluorescence assay to a seven-day, neutral red assay, based on complete cell destruction in virus infected MA-104 cells, yielded Z′-factor values of 0.83 and …


Transcriptional Reprogramming Of Gene Expression In Bovine Somatic Cell Chromatin Transfer Embryos, N. Rodriguez-Osorio, Zhongde Wang, G. P. Page, J. M. Robl, E. Memili Jan 2009

Transcriptional Reprogramming Of Gene Expression In Bovine Somatic Cell Chromatin Transfer Embryos, N. Rodriguez-Osorio, Zhongde Wang, G. P. Page, J. M. Robl, E. Memili

Animal, Dairy, and Veterinary Science Faculty Publications

Background Successful reprogramming of a somatic genome to produce a healthy clone by somatic cells nuclear transfer (SCNT) is a rare event and the mechanisms involved in this process are poorly defined. When serial or successive rounds of cloning are performed, blastocyst and full term development rates decline even further with the increasing rounds of cloning. Identifying the "cumulative errors" could reveal the epigenetic reprogramming blocks in animal cloning. Results Bovine clones from up to four generations of successive cloning were produced by chromatin transfer (CT). Using Affymetrix bovine microarrays we determined that the transcriptomes of blastocysts derived from the …


A New Mouse-Adapted Strain Of Sars-Cov As A Lethal Model Forevaluating Antiviral Agents In Vitro And In Vivo, C. W. Day, R. Baric, S. X. Cai, M. Frieman, Y. Kumaki, John D. Morrey, Donald F. Smee, Dale L. Barnard Jan 2009

A New Mouse-Adapted Strain Of Sars-Cov As A Lethal Model Forevaluating Antiviral Agents In Vitro And In Vivo, C. W. Day, R. Baric, S. X. Cai, M. Frieman, Y. Kumaki, John D. Morrey, Donald F. Smee, Dale L. Barnard

Animal, Dairy, and Veterinary Science Faculty Publications

Severe acute respiratory syndrome (SARS) is a highly lethal emerging disease caused by coronavirus SARS-CoV. New lethal animal models for SARS were needed to facilitate antiviral research. We adapted and characterized a new strain of SARS-CoV (strain v2163) that was highly lethal in 5–6 week old BALB/c mice. It had nine mutations affecting 10 amino acid residues. Strain v2163 increased IL-1α, IL-6, MIP-1α, MCP-1, and RANTES in mice, and high IL-6 expression correlated with mortality. The infection largely mimicked human disease, but lung pathology lacked hyaline membrane formation. In vitro efficacy against v2163 was shown with known inhihibitors of SARSCoV …


Inducible Bronchus-Associated Lymphoid Tissue Elicited By A Protein Cage Nanoparticle Enhances Protectionin Mice Against Diverse Respiratory Viruses, J. A. Wiley, L. E. Richert, S. D. Swain, A. Harmsen, Dale L. Barnard, T. D. Randall, M. Jutila, T. Douglas, C. Broomell, M. Young, A. Harmsen Jan 2009

Inducible Bronchus-Associated Lymphoid Tissue Elicited By A Protein Cage Nanoparticle Enhances Protectionin Mice Against Diverse Respiratory Viruses, J. A. Wiley, L. E. Richert, S. D. Swain, A. Harmsen, Dale L. Barnard, T. D. Randall, M. Jutila, T. Douglas, C. Broomell, M. Young, A. Harmsen

Animal, Dairy, and Veterinary Science Faculty Publications

Destruction of the architectural and subsequently the functional integrity of the lung following pulmonary viral infections is attributable to both the extent of pathogen replication and to the host-generated inflammation associated with the recruitment of immune responses. The presence of antigenically disparate pulmonary viruses and the emergence of novel viruses assures the recurrence of lung damage with infection and resolution of each primary viral infection. Thus, there is a need to develop safe broad spectrum immunoprophylactic strategies capable of enhancing protective immune responses in the lung but which limits immune-mediated lung damage. The immunoprophylactic strategy described here utilizes a protein …


Animal Models For The Study Of Influenza Pathogenesis And Therapy, Dale L. Barnard Jan 2009

Animal Models For The Study Of Influenza Pathogenesis And Therapy, Dale L. Barnard

Animal, Dairy, and Veterinary Science Faculty Publications

Influenza A viruses causes a variety of illnesses in humans. The most common infection, seasonal influenza, is usually a mild, self-limited febrile syndrome, but it can be more severe in infants, the elderly, and immunodeficient persons, in whom it can progress to severe viral pneumonitis or be complicated by bacterial superinfection, leading to pneumonia and sepsis. Seasonal influenza also occasionally results in neurologic complications. Rarely, viruses that have spread from wild birds to domestic poultry can infect humans; such “avian influenza” can range in severity from mild conjunctivitis through the rapidly lethal disease seen in persons infected with the H5N1 …


Aspen Succession And Nitrogen Loading: A Case For Epiphytic Lichens As Bioindicators In The Rocky Mountains, Usa, Paul C. Rogers, Kori D. Moore, Ronald J. Ryel Jan 2009

Aspen Succession And Nitrogen Loading: A Case For Epiphytic Lichens As Bioindicators In The Rocky Mountains, Usa, Paul C. Rogers, Kori D. Moore, Ronald J. Ryel

Wildland Resources Faculty Publications

Question: Can lichen communities be used to assess shortand long-term factors affecting seral quaking aspen (Populus tremuloides) communities at the landscape scale? Location: Bear River Range, within the Rocky Mountains, in northern Utah and southern Idaho, USA. Method: Forty-seven randomly selected mid-elevation aspen stands were sampled for lichens and stand conditions. Plots were characterized according to tree species cover, basal area, stand age, bole scarring, tree damage, and presence of lichen species. We also recorded ammonia emissions with passive sensors at 25 urban and agricultural sites throughout an adjacent populated valley upwind of the forest stands. Nonmetric multidimensional scaling (NMS) …


Direct And Indirect Effects Of Climate Change On A Prairie Plant Community, Peter B. Adler, James Leiker, Jonathan M. Levine Jan 2009

Direct And Indirect Effects Of Climate Change On A Prairie Plant Community, Peter B. Adler, James Leiker, Jonathan M. Levine

Wildland Resources Faculty Publications

Background

Climate change directly affects species by altering their physical environment and indirectly affects species by altering interspecific interactions such as predation and competition. Recent studies have shown that the indirect effects of climate change may amplify or counteract the direct effects. However, little is known about the the relative strength of direct and indirect effects or their potential to impact population persistence.

Methodology/Principal Findings

We studied the effects of altered precipitation and interspecific interactions on the low-density tiller growth rates and biomass production of three perennial grass species in a Kansas, USA mixed prairie. We transplanted plugs of each …


Ecology Of Greater Sage-Grouse Populations Inhabiting Wildcat Knolls And Horn Mountains, South Central Utah 2008 Annual Report, Chris Perkins, Todd A. Black, Terry A. Messmer Jan 2009

Ecology Of Greater Sage-Grouse Populations Inhabiting Wildcat Knolls And Horn Mountains, South Central Utah 2008 Annual Report, Chris Perkins, Todd A. Black, Terry A. Messmer

All Archived Publications

No abstract provided.


Apache Plume In The Landscape, Heidi Kratsch Jan 2009

Apache Plume In The Landscape, Heidi Kratsch

All Archived Publications

Description: Apache plume is an evergreen shrub that can reach five feet tall and wide in a landscape setting. This plant’s most distinguishing and attractive feature is the feathery, red- turning-pink seedhead that emerges after the white rose-like, five-petaled flower fades. In the same family as Mexican cliffrose, both species produce similar deeply lobed small leaves; Apache plume’s leaves are lighter green and more finely textured. The bark becomes red and exfoliating with age. Apache plume is a dioecious species, requiring both male and female plants to produce viable seed.


An Aspen Success Story : 2009 Aspen Monitoring Report, James L. Robertson Jan 2009

An Aspen Success Story : 2009 Aspen Monitoring Report, James L. Robertson

Aspen Bibliography

No abstract provided.


2009 Report : A Multi-Refuge Program To Evaluate The Effect Of Ungulate Browsing On Habitat, Richard B. Keigley, Jeffrey Warren, Wayne J. King Jan 2009

2009 Report : A Multi-Refuge Program To Evaluate The Effect Of Ungulate Browsing On Habitat, Richard B. Keigley, Jeffrey Warren, Wayne J. King

Aspen Bibliography

No abstract provided.


Mountain Beebalm In The Landscape, Heidi Kratsch, Graham Hunter Jan 2009

Mountain Beebalm In The Landscape, Heidi Kratsch, Graham Hunter

Gardening

No abstract provided.


Firecracker Penstemon In The Landscape, Heidi Kratsch, Graham Hunter Jan 2009

Firecracker Penstemon In The Landscape, Heidi Kratsch, Graham Hunter

Gardening

No abstract provided.


Prince's Plume In The Landscape, Heidi Kratsch, Graham Hunter Jan 2009

Prince's Plume In The Landscape, Heidi Kratsch, Graham Hunter

All Current Publications

No abstract provided.


Curl-Leaf Mountain Mahogany In The Landscape, Heidi Kratsch, Graham Hunter Jan 2009

Curl-Leaf Mountain Mahogany In The Landscape, Heidi Kratsch, Graham Hunter

All Current Publications

No abstract provided.


Showing The 4-H Hunter, Rebecca Lewis, Patricia Evans Jan 2009

Showing The 4-H Hunter, Rebecca Lewis, Patricia Evans

All Current Publications

This publication gives important information to consider when preparing to compete in a 4-H Hunter competition.


Showing Utah 4-H Dressage, Rebecca Lewis, Patricia Evans Jan 2009

Showing Utah 4-H Dressage, Rebecca Lewis, Patricia Evans

All Current Publications

This publication gives information on Dressage which teaches understanding between horse and rider. Dressage develops the horse's physical and mental condition.


Utah 4-H Stadium Jumping, Rebecca Lewis, Patricia Evans Jan 2009

Utah 4-H Stadium Jumping, Rebecca Lewis, Patricia Evans

All Current Publications

This publication outlines details of stadium jumping courses for horses.


Agrosecurity - Protecting America's Food Supply, An Introduction To Agrosecurity Challenges, C Kim Chapman, Kerry A. Rood Jan 2009

Agrosecurity - Protecting America's Food Supply, An Introduction To Agrosecurity Challenges, C Kim Chapman, Kerry A. Rood

All Current Publications

This fact sheet intends to introduce the topic of agrosecurity.


Assessing The Needs Of Sage-Grouse Local Working Groups Final Technical Report, Lorien Belton, Douglas Jackson-Smith, Terry Messmer Jan 2009

Assessing The Needs Of Sage-Grouse Local Working Groups Final Technical Report, Lorien Belton, Douglas Jackson-Smith, Terry Messmer

All Current Publications

No abstract provided.


Recording Proper Outdoor Lighting, Stephen Sagers, Ron Patterson Jan 2009

Recording Proper Outdoor Lighting, Stephen Sagers, Ron Patterson

All Current Publications

The function of a camera is to record light rays. A digital camera records light rays in an electronic code. When taking pictures outdoors regulating the sun’s light influences quality more than any other non-camera factor.