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Full-Text Articles in Biology

Effects Of Wind Turbine Noise On Songbird Behavior During Nonbreeding Season, Yael Lehnardt, Jesse R. Barber, Oded Berger-Tal Apr 2024

Effects Of Wind Turbine Noise On Songbird Behavior During Nonbreeding Season, Yael Lehnardt, Jesse R. Barber, Oded Berger-Tal

Biology Faculty Publications and Presentations

Anthropogenic noise is one of the fastest growing, globally widespread pollutants, affecting countless species worldwide. Despite accumulating evidence of the negative impacts of wind turbines on wildlife, little is known about how the noise they generate affects ecological systems. Songbirds may be susceptible to noise pollution due to their reliance on vocal communication and thus, in this field study, we examined how songbirds are affected by wind turbine noise. We broadcasted noise produced by one wind turbine in a migratory stopover site during the nonbreeding season. Throughout the study, we repeatedly monitored the acoustic environment and songbird community before, during, …


Proteomic Dataset For Decellularization Of Porcine Auricular Cartilage, Roxanne N. Stone, Xinzhu Pu, Julia Thom Oxford Feb 2024

Proteomic Dataset For Decellularization Of Porcine Auricular Cartilage, Roxanne N. Stone, Xinzhu Pu, Julia Thom Oxford

Biology Faculty Publications and Presentations

Objectives Osteoarthritis (OA) is a major concern in the United States and worldwide. Development and validation of robust decellularization techniques is critical in generating suitable bioscaffolds for future OA treatment options.

Data descriptions In the present study, proteins from porcine auricular cartilage before and after decellularization were extracted, digested, and identified using liquid chromatography-tandem mass spectrometry (LC-MS/MS). The data represents protein profiles of both non-decellularized and decellularized porcine auricular cartilage. This data is intended to be useful to scientists who are interesting in generating biomaterials for potential relevant clinical applications using decellularized cartilage tissue.


Overlapping Extractive Land Use Rights Increases Deforestation And Forest Degradation In Managed Natural Production Forests, Bingcai Liu, Anand Roopsind, Brent Sohngen Feb 2024

Overlapping Extractive Land Use Rights Increases Deforestation And Forest Degradation In Managed Natural Production Forests, Bingcai Liu, Anand Roopsind, Brent Sohngen

Biology Faculty Publications and Presentations

Guyana manages an estimated 5.3 million hectares of old-growth tropical forests, 29% of its total forest area, for timber extraction. Individuals and companies can apply for time-limited leases that allocate access, management, and extraction rights for timber through a concession system. In many tropical regions, including Guyana, a lack of integrated land use planning often leads to overlapping extractive and forest use rights for logging and mining. Overlapping land rights in turn create uncertainty and limit investments toward sustainable forest management, affecting deforestation and forest degradation rates. In this study, we use matched fixed-effect and difference-in-differences panel data models to …


The Role Of Nad+ And Nad+-Boosting Therapies In Inflammatory Response By Il-13, Anton D. Pugel, Alyssa M. Schoenfeld, Sara Z. Alsaifi, Jocelyn R. Holmes, Brad E. Morrison Feb 2024

The Role Of Nad+ And Nad+-Boosting Therapies In Inflammatory Response By Il-13, Anton D. Pugel, Alyssa M. Schoenfeld, Sara Z. Alsaifi, Jocelyn R. Holmes, Brad E. Morrison

Biology Faculty Publications and Presentations

The essential role of nicotinamide adenine dinucleotide+ (NAD+) in redox reactions during oxidative respiration is well known, yet the coenzyme and regulator functions of NAD+ in diverse and important processes are still being discovered. Maintaining NAD+ levels through diet is essential for health. In fact, the United States requires supplementation of the NAD+ precursor niacin into the food chain for these reasons. A large body of research also indicates that elevating NAD+ levels is beneficial for numerous conditions, including cancer, cardiovascular health, inflammatory response, and longevity. Consequently, strategies have been created to elevate …


Applied Soft Classes And Fuzzy Confusion In A Patchwork Semi-Arid Ecosystem: Stitching Together Classification Techniques To Preserve Ecologically-Meaningful Information, Josh Enterkine, T. Trevor Caughlin, Hamid Dashti, Nancy F. Glenn Jan 2024

Applied Soft Classes And Fuzzy Confusion In A Patchwork Semi-Arid Ecosystem: Stitching Together Classification Techniques To Preserve Ecologically-Meaningful Information, Josh Enterkine, T. Trevor Caughlin, Hamid Dashti, Nancy F. Glenn

Biology Faculty Publications and Presentations

Dryland ecosystems have complex vegetation communities, including subtle transitions between communities and heterogeneous coverage of key functional groups. This complexity challenges the capacity of remote sensing to represent land cover in a meaningful way. Many remote sensing methods to map vegetation in drylands simplify fractional cover into a small number of functional groups that may overlook key ecological communities. Here, we investigate a remote sensing process that further advances our understanding of the link between remote sensing and ecologic community types in drylands. We propose a method using k-means clustering to establish soft classes of vegetation cover communities from detailed …


Genomic Surveillance Of Sars-Cov-2 Sequence Variants At Universities In Southwest Idaho, Jennifer R. Chase, Laura Bond, Daniel J. Vail, Milan Sengthep, Adriana Rodriguez, Joe Christianson, Stephanie F. Hudon, Julia Thom Oxford Jan 2024

Genomic Surveillance Of Sars-Cov-2 Sequence Variants At Universities In Southwest Idaho, Jennifer R. Chase, Laura Bond, Daniel J. Vail, Milan Sengthep, Adriana Rodriguez, Joe Christianson, Stephanie F. Hudon, Julia Thom Oxford

Biology Faculty Publications and Presentations

Although the impact of the SARS-CoV-2 pandemic on major metropolitan areas is broadly reported and readily available, regions with lower populations and more remote areas in the United States are understudied. The objective of this study is to determine the progression of SARS-CoV-2 sequence variants in a frontier and remote intermountain west state among university-associated communities. This study was conducted at two intermountain west universities from 2020 to 2022. Positive SARS-CoV-2 samples were confirmed by quantitative real-time reverse transcription-polymerase chain reaction and variants were identified by the next-generation sequencing of viral genomes. Positive results were obtained for 5355 samples, representing …


Low Spatial Habitat Overlap Of Herbivores In The High Arctic Tundra, Virve Ravolainen, Ingrid M. G. Paulsen, Isabell Eischeid, Jennifer Sorensen Forbey, Eva Fuglei, Tomáš Hájek, Brage B. Hansen, Leif Egil Loe, Petr Macek, Jesper Madsen, Eeva M. Soininen, James D. M. Speed, Audun Stien, Hans Tømmervik, Åshild Ønvik Pedersen Jan 2024

Low Spatial Habitat Overlap Of Herbivores In The High Arctic Tundra, Virve Ravolainen, Ingrid M. G. Paulsen, Isabell Eischeid, Jennifer Sorensen Forbey, Eva Fuglei, Tomáš Hájek, Brage B. Hansen, Leif Egil Loe, Petr Macek, Jesper Madsen, Eeva M. Soininen, James D. M. Speed, Audun Stien, Hans Tømmervik, Åshild Ønvik Pedersen

Biology Faculty Publications and Presentations

Herbivores play a crucial role in shaping tundra ecosystems through their effects on vegetation, nutrient cycling, and soil abiotic factors. Understanding their habitat use, co-occurrence, and overlap is therefore essential for informing ecosystem-based management and conservation. In the High Arctic, only a marginal proportion of the land area is vegetated, and climate change is impacting herbivore population sizes and their habitats. In this study, we assessed the spatial habitat overlap of a vertebrate herbivore community based on: 1) regional predictive summer habitat suitability models for the resident Svalbard reindeer (Rangifer tarandus platyrhynchus), resident Svalbard rock ptarmigan (Lagopus …


9s1r Nullomer Peptide Induces Mitochondrial Pathology, Metabolic Suppression, And Enhanced Immune Cell Infiltration, In Triple-Negative Breast Cancer Mouse Model, Nilufar Ali, Cody Wolf, Swarna Kanchan, Shivakumar R. Veerabhadraiah, Laura Bond, Matthew W. Turner, Cheryl L. Jorcyk, Greg Hampikian Jan 2024

9s1r Nullomer Peptide Induces Mitochondrial Pathology, Metabolic Suppression, And Enhanced Immune Cell Infiltration, In Triple-Negative Breast Cancer Mouse Model, Nilufar Ali, Cody Wolf, Swarna Kanchan, Shivakumar R. Veerabhadraiah, Laura Bond, Matthew W. Turner, Cheryl L. Jorcyk, Greg Hampikian

Biology Faculty Publications and Presentations

Nullomers are the shortest strings of absent amino acid (aa) sequences in a species or group of species. Primes are those nullomers that have not been detected in the genome of any species. 9S1R is a 5-aa peptide prime sequence attached to 5-arginine aa, used to treat triple negative breast cancer (TNBC) in an in vivo mouse model. This unique peptide, administered with a trehalose carrier (9S1R-NulloPT), offers enhanced solubility and exhibits distinct anti-cancer effects against TNBC. In our study, we investigated the effect of 9S1R-NulloPT on tumor growth, metabolism, metastatic burden, tumor immune-microenvironment (TME), and transcriptome of aggressive mouse …


Leveraging High Resolution Classifications And Random Forests For Hindcasting Decades Of Mesic Ecosystem Dynamics In The Landsat Time Series, N. E. Kolarik, N. Shrestha, T. Caughlin, J. S. Brandt Jan 2024

Leveraging High Resolution Classifications And Random Forests For Hindcasting Decades Of Mesic Ecosystem Dynamics In The Landsat Time Series, N. E. Kolarik, N. Shrestha, T. Caughlin, J. S. Brandt

Biology Faculty Publications and Presentations

Mesic ecosystems are fundamental to conservation efforts in semi-arid systems, but are threatened by climate change and development. Newer earth observation datasets, including Sentinel-1 and −2, provide opportunities to monitor mesic ecosystems at meaningful spatial scales, but are insufficient for measuring decadal-scale changes. Conversely, the Landsat time series has decades of data, but images are spatially coarse relative to many of the mesic ecosystem areas that sustain dryland systems, resulting in classifications with mixed pixels inadequate for effective monitoring. We developed a workflow that uses 10-m classifications produced from fusion of the Sentinel-1 and −2 time series (2017–2020) to estimate …


Genetic And Environmental Drivers Of Migratory Behavior In Western Burrowing Owls And Implications For Conservation And Management, Kelly Barr, Christen M. Bossu, Rachel A. Bay, Eric C. Anderson, Jim Belthoff, Lynne A. Trulio, Debra Chromczak, Colleen L. Wisinski, Thomas B. Smith, Kristen C. Ruegg Dec 2023

Genetic And Environmental Drivers Of Migratory Behavior In Western Burrowing Owls And Implications For Conservation And Management, Kelly Barr, Christen M. Bossu, Rachel A. Bay, Eric C. Anderson, Jim Belthoff, Lynne A. Trulio, Debra Chromczak, Colleen L. Wisinski, Thomas B. Smith, Kristen C. Ruegg

Biology Faculty Publications and Presentations

Migration is driven by a combination of environmental and genetic factors, but many questions remain about those drivers. Potential interactions between genetic and environmental variants associated with different migratory phenotypes are rarely the focus of study. We pair low coverage whole genome resequencing with a de novo genome assembly to examine population structure, inbreeding, and the environmental factors associated with genetic differentiation between migratory and resident breeding phenotypes in a species of conservation concern, the western burrowing owl (Athene cunicularia hypugaea). Our analyses reveal a dichotomy in gene flow depending on whether the population is resident or migratory, …


Doxorubicin-Induced Modulation Of Tgf-Β Signaling Cascade In Mouse Fibroblasts: Insights Into Cardiotoxicity Mechanisms, Conner Patricelli, Parker Lehmann, Julia Thom Oxford, Xinzhu Pu Nov 2023

Doxorubicin-Induced Modulation Of Tgf-Β Signaling Cascade In Mouse Fibroblasts: Insights Into Cardiotoxicity Mechanisms, Conner Patricelli, Parker Lehmann, Julia Thom Oxford, Xinzhu Pu

Biology Faculty Publications and Presentations

Doxorubicin (DOX)-induced cardiotoxicity has been widely observed, yet the specific impact on cardiac fibroblasts is not fully understood. Additionally, the modulation of the transforming growth factor beta (TGF-β) signaling pathway by DOX remains to be fully elucidated. This study investigated DOX’s ability to modulate the expression of genes and proteins involved in the TGF-β signaling cascade in mouse fibroblasts from two sources by assessing the impact of DOX treatment on TGF-β inducible expression of pivotal genes and proteins within fibroblasts. Mouse embryonic fibroblasts (NIH3T3) and mouse primary cardiac fibroblasts (CFs) were treated with DOX in the presence of TGF-β1 to …


Background Acoustics In Terrestrial Ecology, Clinton D. Francis, Jennifer N. Phillips, Jesse R. Barber Nov 2023

Background Acoustics In Terrestrial Ecology, Clinton D. Francis, Jennifer N. Phillips, Jesse R. Barber

Biology Faculty Publications and Presentations

The way in which terrestrial organisms use the acoustic realm is fundamentally important and shapes behavior, populations, and communities, but how background acoustics, or noise, influence the patterns and processes in ecology is still relatively understudied. In this review, we summarize how background acoustics have traditionally been studied from the signaling perspective, discuss what is known from a receiver's perspective, and explore what is known about population- and community-level responses to noise. We suggest that there are major gaps linking animal physiology and behavior in noise to fitness; that there is a limited understanding of variation in hearing within and …


Biocrusts Indicators Of Livestock Grazing Effects On Soil Stability In Sagebrush Steppe: A Case Study From A Long-Term Experiment In The Northern Great Basin, Stella M. Copeland, Lea A. Condon, Roger Rosentreter, Jesse E. D. Miller, Maya Kahn-Abrams Nov 2023

Biocrusts Indicators Of Livestock Grazing Effects On Soil Stability In Sagebrush Steppe: A Case Study From A Long-Term Experiment In The Northern Great Basin, Stella M. Copeland, Lea A. Condon, Roger Rosentreter, Jesse E. D. Miller, Maya Kahn-Abrams

Biology Faculty Publications and Presentations

Biocrusts are sensitive to changes in livestock grazing intensity in arid rangelands and may be useful indicators of ecosystem functions, particularly soil properties like soil stability, which may suggest the potential for soil erosion. We compared biocrust community composition and surface soil stability in a big sagebrush (Artemisia tridentata) steppe rangeland in the northwestern Great Basin in several paired sites, with or without long-term cattle grazing exclusion, and similar soils (mostly sandy loams), climate, and vegetation composition. We found that livestock grazing was associated with both lower surface soil stability and cover of several biocrust morphogroups, especially lichens, compared with …


Illegal Shooting Is Now A Leading Cause Of Death Of Birds Along Power Lines In The Western Usa, Eve C. Thomason, Natalie J. S. Turley, James R. Belthoff, Tara J. Conkling, Todd E. Katzner Aug 2023

Illegal Shooting Is Now A Leading Cause Of Death Of Birds Along Power Lines In The Western Usa, Eve C. Thomason, Natalie J. S. Turley, James R. Belthoff, Tara J. Conkling, Todd E. Katzner

Biology Faculty Publications and Presentations

Human actions, both legal and illegal, affect wildlife in many ways. Inaccurate diagnosis of cause of death undermines law enforcement, management, threat assessment, and mitigation. We found 410 dead birds collected along 196 km of power lines in four western USA states during 2019–2022. We necropsied these carcasses to test conventional wisdom suggesting that electrocution is the leading cause of death of birds at electrical infrastructure. Of 175 birds with a known cause of death, 66% died from gunshot. Both raptors and corvids were more likely to die from gunshot than from other causes, along both transmission and distribution lines. …


A Genotype × Environment Experiment Reveals Contrasting Response Strategies To Drought Between Populations Of A Keystone Species (Artemisia Tridentata; Asteraceae), Anthony E. Melton, Kara Moran, Peggy Martinez, Paige Ellestad, Erin Milliken, Walker Morales, Andrew W. Child, Bryce A. Richardson, Marcelo Serpe, Stephen J. Novak, Sven Buerki Aug 2023

A Genotype × Environment Experiment Reveals Contrasting Response Strategies To Drought Between Populations Of A Keystone Species (Artemisia Tridentata; Asteraceae), Anthony E. Melton, Kara Moran, Peggy Martinez, Paige Ellestad, Erin Milliken, Walker Morales, Andrew W. Child, Bryce A. Richardson, Marcelo Serpe, Stephen J. Novak, Sven Buerki

Biology Faculty Publications and Presentations

Western North America has been experiencing persistent drought exacerbated by climate change for over two decades. This extreme climate event is a clear threat to native plant communities. Artemisia tridentata is a keystone shrub species in western North America and is threatened by climate change, urbanization, and wildfire. A drought Genotype × Environment (G × E) experiment was conducted to assess phenotypic plasticity and differential gene expression in A. tridentata. The G × E experiment was performed on diploid A. tridentata seedlings from two populations (one from Idaho, USA and one from Utah, USA), which experience differing levels of …


American Kestrel Migration: Insights And Challenges From Tracking Individuals Across The Annual Cycle, Anjolene R. Hunt, Jesse L. Watson, Jason M. Winiarski, Ron R. Porter, Julie A. Heath Jun 2023

American Kestrel Migration: Insights And Challenges From Tracking Individuals Across The Annual Cycle, Anjolene R. Hunt, Jesse L. Watson, Jason M. Winiarski, Ron R. Porter, Julie A. Heath

Biology Faculty Publications and Presentations

Natural variation in migratory strategies across the range of the American Kestrel (Falco sparverius) creates a unique opportunity for comparative research of annual cycles. However, it can be logistically and technically challenging to track such a small but highly mobile species. We tagged American Kestrels with light-level geolocators or satellite transmitters with the aim of estimating migration timing and connectivity, and we monitored a subset of satellite-tagged individuals during the breeding season to assess transmitter function and wear. We recovered geolocators from six of 49 (12%) tagged individuals. One geolocator-tagged individual migrated approximately 1235 km from its Idaho …


Automating Pharmacokinetic Predictions In Artemisia, Celin Younan May 2023

Automating Pharmacokinetic Predictions In Artemisia, Celin Younan

Boise State University Theses and Dissertations

Pharmacokinetics (PK) is the time course of a compound in the body that is dependent on mechanisms of absorption, distribution, metabolism, and excretion or ADME. A thorough understanding of PK is essential to predict the consequences of organisms exposed to chemicals. In medicine, predictions of PK of drugs allows us to properly prescribe drug treatments. In toxicology, PK allows us to predict the potential exposure of environmental contaminants and how they may affect organisms at the time of exposure or in the future. Chemical ecology could benefit from computational predictions of PK to better understand which plants are consumed or …


Understanding Temporal Dynamics Of Plant Specialized Metabolites In Response To Simulated Browsing In Winter, Bryanna Hope Bright May 2023

Understanding Temporal Dynamics Of Plant Specialized Metabolites In Response To Simulated Browsing In Winter, Bryanna Hope Bright

Boise State University Theses and Dissertations

Plants are continually defending themselves from the herbivores that consume them, often using an array of plant specialized metabolites (PSMs). Volatile organic compounds, including monoterpenes, are one such type of PSMs that can be emitted and induced by plants in response to mechanical damage and herbivory. These volatiles serve as direct defenses against herbivores and can alert neighboring plants about potential threats, resulting in protection against future attacks. However, how these chemicals change over time in response to browsing by vertebrates in the winter has received limited attention and is crucial to interpreting how monoterpenes defend plants against vertebrate herbivores. …


The Role Of Decorin And Biglycan In Cns Angiogenesis And Eae Recovery, Kristina Chapman May 2023

The Role Of Decorin And Biglycan In Cns Angiogenesis And Eae Recovery, Kristina Chapman

Boise State University Theses and Dissertations

Multiple Sclerosis (MS) is a severe demyelinating disease of the Central Nervous System (CNS) associated with an autoimmune response directed against myelin antigens. Angiogenesis, the formation of new blood vessels from preexisting ones, is a vital process for tissue regeneration and wound healing but is a pathological hallmark of both MS and an MS mouse model, experimental autoimmune encephalomyelitis (EAE). This type of aberrant angiogenesis is a fundamental event during an inflammatory injury, which is mutually dependent upon the intrusion of inflammatory molecules, disruption of the blood-brain barrier (BBB), and immature vessel formation. In the EAE recovery phase, this process …


Root Traits Of Perennial C4 Grasses Contribute To Cultivar Variations In Soil Chemistry And Species Patterns In Particulate And Mineral-Associated Carbon Pool Formation, Megan J. Kelly-Slatten, Catherine E. Stewart, Malak M. Tfaily, Julie D. Jastrow, Abigail Sasso, Marie-Anne De Graaff May 2023

Root Traits Of Perennial C4 Grasses Contribute To Cultivar Variations In Soil Chemistry And Species Patterns In Particulate And Mineral-Associated Carbon Pool Formation, Megan J. Kelly-Slatten, Catherine E. Stewart, Malak M. Tfaily, Julie D. Jastrow, Abigail Sasso, Marie-Anne De Graaff

Biology Faculty Publications and Presentations

Recent studies have indicated that the C4 perennial bioenergy crops switchgrass (Panicum virgatum) and big bluestem (Andropogon gerardii) accumulate significant amounts of soil carbon (C) owing to their extensive root systems. Soil C accumulation is likely driven by inter- and intraspecific variability in plant traits, but the mechanisms that underpin this variability remain unresolved. In this study we evaluated how inter- and intraspecific variation in root traits of cultivars from switchgrass (Cave-in-Rock, Kanlow, Southlow) and big bluestem (Bonanza, Southlow, Suther) affected the associations of soil C accumulation across soil fractions using stable isotope techniques. Our …


A Field‐Capable Rapid Plant Dna Extraction Protocol Using Microneedle Patches For Botanical Surveying And Monitoring, Jonathan Selz, Nicolas R. Adam, Céline E. M. Magrini, Fulvia Malvido Montandon, Sven Buerki, Sebastian J. Maerkl May 2023

A Field‐Capable Rapid Plant Dna Extraction Protocol Using Microneedle Patches For Botanical Surveying And Monitoring, Jonathan Selz, Nicolas R. Adam, Céline E. M. Magrini, Fulvia Malvido Montandon, Sven Buerki, Sebastian J. Maerkl

Biology Faculty Publications and Presentations

Premise: A novel protocol for rapid plant DNA extraction using microneedles is proposed, which supports botanic surveys, taxonomy, and systematics. This protocol can be conducted in the field with limited laboratory skills and equipment. The protocol is validated by sequencing and comparing the results with QIAGEN spin-column DNA extractions using BLAST analyses.

Methods and Results: Two sets of DNA extractions were conducted on 13 species spanning various leaf anatomies and phylogenetic lineages: (i) fresh leaves were punched with custom polymeric microneedle patches to recover genomic DNA, or (ii) QIAGEN DNA extractions. Three plastid (matK, rbcL, and trnH-psbA …


Socio-Ecological Interactions Promote Outbreaks Of A Harmful Invasive Plant In An Urban Landscape, T. Trevor Caughlin, Matthew Clark, Louis W. Jochems, Nick Kolarik, Andrii Zaiats, Cody Hall, Jason M. Winiarski, Breanna F. Powers, Martha M. Brabec, Kelly Hopping Apr 2023

Socio-Ecological Interactions Promote Outbreaks Of A Harmful Invasive Plant In An Urban Landscape, T. Trevor Caughlin, Matthew Clark, Louis W. Jochems, Nick Kolarik, Andrii Zaiats, Cody Hall, Jason M. Winiarski, Breanna F. Powers, Martha M. Brabec, Kelly Hopping

Biology Faculty Publications and Presentations

  1. Urban landscapes often harbour organisms that harm people and threaten native biodiversity. These landscapes are characterized by differences in socioeconomic context, habitat suitability and patch connectedness. Identifying which spatial differences enable outbreaks of pests, pathogens and invasive species will improve targeted control efforts.

  2. We tested hypotheses to explain the distribution and demography of puncturevine Tribulus terrestris, a human-dispersed invasive plant in Boise, a city in the western United States. We hypothesized an increase in puncturevine infestations near low-valued properties with a high proportion of bare ground, the species' preferred microhabitat, that are well connected on the urban road network. …


Could Biological Soil Crusts Act As Natural Fire Fuel Breaks In The Sagebrush Steppe?, Lea A. Condon, Douglas J. Shinneman, Roger Rosentreter, Peter S. Coates Apr 2023

Could Biological Soil Crusts Act As Natural Fire Fuel Breaks In The Sagebrush Steppe?, Lea A. Condon, Douglas J. Shinneman, Roger Rosentreter, Peter S. Coates

Biology Faculty Publications and Presentations

For decades, large portions of the semi-arid sagebrush ecosystem have been experiencing increased frequency and extent of wildfire, even though small, infrequent fire is a natural disturbance in this ecosystem (Baker, 2006). Increased wildfire is threatening the existence of sagebrush ecosystems and the wildlife species that depend upon them (Baker, 2006; Coates et al., 2016). Increased wildfire in sagebrush ecosystems is often driven by invasive annual grasses, especially cheatgrass, Bromus tectorum (L.). Invasion can initiate a trajectory toward a “grass-fire cycle”, in which cheatgrass increases fine fuel loadings that promote fire, and native plant species do not recover quickly after …


Advances In Cartilage Tissue Engineering Using Bioinks With Decellularized Cartilage And Three-Dimensional Printing, Roxanne N. Stone, Jonathon C. Reeck, Julia Thom Oxford Mar 2023

Advances In Cartilage Tissue Engineering Using Bioinks With Decellularized Cartilage And Three-Dimensional Printing, Roxanne N. Stone, Jonathon C. Reeck, Julia Thom Oxford

Biology Faculty Publications and Presentations

Osteoarthritis, a chronic, debilitating, and painful disease, is one of the leading causes of disability and socioeconomic burden, with an estimated 250 million people affected worldwide. Currently, there is no cure for osteoarthritis and treatments for joint disease require improvements. To address the challenge of improving cartilage repair and regeneration, three-dimensional (3D) printing for tissue engineering purposes has been developed. In this review, emerging technologies are presented with an overview of bioprinting, cartilage structure, current treatment options, decellularization, bioinks, and recent progress in the field of decellularized extracellular matrix (dECM)–bioink composites is discussed. The optimization of tissue engineering approaches using …


Acclimation And Hardening Of A Slow-Growing Woody Species Emblematic To Western North America From In Vitro Plantlets, Peggy Martinez, Marcelo Serpe, Rachael Barron, Sven Buerki Mar 2023

Acclimation And Hardening Of A Slow-Growing Woody Species Emblematic To Western North America From In Vitro Plantlets, Peggy Martinez, Marcelo Serpe, Rachael Barron, Sven Buerki

Biology Faculty Publications and Presentations

Premise: Determining the tolerance of plant populations to climate change requires the development of biotechnological protocols producing genetically identical individuals used for genotype-by-environment experiments. Such protocols are missing for slow-growth, woody plants; to address this gap, this study uses Artemisia tridentata, a western North American keystone shrub, as model.

Methods and Results: The production of individual lines is a two-step process: in vitro propagation under aseptic conditions followed by ex vitro acclimation and hardening. Due to aseptic growth conditions, in vitro plantlets exhibit maladapted phenotypes, and this protocol focuses on presenting an approach promoting morphogenesis for slow-growth, woody species. …


Anaerobic Digestion Reduces Seed Germination And Viability Of Six Plant Species From The Upper Nile Valley, Egypt, Ahmed M. Abbas, Mohamed Abdelazeem, Stephen J. Novak Feb 2023

Anaerobic Digestion Reduces Seed Germination And Viability Of Six Plant Species From The Upper Nile Valley, Egypt, Ahmed M. Abbas, Mohamed Abdelazeem, Stephen J. Novak

Biology Faculty Publications and Presentations

Anaerobic digestion (AD) involves the breakdown of a substrate by mixed microbial communities in the absence of free oxygen. This process has many benefits leading to the production of bioenergy (biogas) and fertilizers (bio-fertilizers). Unfortunately, the bio-fertilizer made using AD may be contaminated with weed seeds and may have the potential of infesting the fields to which it is applied. Thus, the goal of this study is to determine the effects of AD on seed germination and viability of two undesirable crop plants (Triticum aestivum and Sorghum bicolor) and four weed species of reclaimed agricultural land near Qena, …


Rna Sequence To Structure Analysis From Comprehensive Pairwise Mutagenesis Of Multiple Self-Cleaving Ribozymes, Jessica M. Roberts, James D. Beck, Tanner B. Pollock, Devin P. Bendixsen, Eric J. Hayden Jan 2023

Rna Sequence To Structure Analysis From Comprehensive Pairwise Mutagenesis Of Multiple Self-Cleaving Ribozymes, Jessica M. Roberts, James D. Beck, Tanner B. Pollock, Devin P. Bendixsen, Eric J. Hayden

Biology Faculty Publications and Presentations

Self-cleaving ribozymes are RNA molecules that catalyze the cleavage of their own phosphodiester backbones. These ribozymes are found in all domains of life and are also a tool for biotechnical and synthetic biology applications. Self-cleaving ribozymes are also an important model of sequence-to-function relationships for RNA because their small size simplifies synthesis of genetic variants and self-cleaving activity is an accessible readout of the functional consequence of the mutation. Here, we used a high-throughput experimental approach to determine the relative activity for every possible single and double mutant of five self-cleaving ribozymes. From this data, we comprehensively identified non-additive effects …


An Amino-Terminal Fragment Of Apolipoprotein E4 Leads To Behavioral Deficits, Increased Phf-1 Immunoreactivity, And Mortality In Zebrafish, Madyson M. Mccarthy, Makenna J. Hardy, Saylor E. Leising, Alex M. Lafollette, Erica S. Stewart, Amelia S. Cogan, Tanya Sanghal, Katie Matteo, Jonathon C. Reeck, Julia T. Oxford, Troy T. Rohn Dec 2022

An Amino-Terminal Fragment Of Apolipoprotein E4 Leads To Behavioral Deficits, Increased Phf-1 Immunoreactivity, And Mortality In Zebrafish, Madyson M. Mccarthy, Makenna J. Hardy, Saylor E. Leising, Alex M. Lafollette, Erica S. Stewart, Amelia S. Cogan, Tanya Sanghal, Katie Matteo, Jonathon C. Reeck, Julia T. Oxford, Troy T. Rohn

Biology Faculty Publications and Presentations

Although the increased risk of developing sporadic Alzheimer’s disease (AD) associated with the inheritance of the apolipoprotein E4 (APOE4) allele is well characterized, the molecular underpinnings of how ApoE4 imparts risk remains unknown. Enhanced proteolysis of the ApoE4 protein with a toxic-gain of function has been suggested and a 17 kDa amino-terminal ApoE4 fragment (nApoE41-151) has been identified in post-mortem human AD frontal cortex sections. Recently, we demonstrated in vitro, exogenous treatment of nApoE41-151 in BV2 microglial cells leads to uptake, trafficking to the nucleus and increased expression of genes associated with cell toxicity …


Applied Studies Of Raptor Sensory Ecology Are Rare, Christopher J.W. Mcclure, Simon Potier, Jesse R. Barber Dec 2022

Applied Studies Of Raptor Sensory Ecology Are Rare, Christopher J.W. Mcclure, Simon Potier, Jesse R. Barber

Biology Faculty Publications and Presentations

Light and noise often act as pollutants, but can also be used as tools for managing wildlife (e.g., sensory deterrents). Given that raptors are among the most threatened groups of birds, we expected there to be a moderate amount of applied research on their sensory ecology. We searched Web of Science and Google Scholar to quantify and classify the research that has been conducted on the applied sensory ecology of raptors. Of 32 studies assessing the effects of sensory pollution on raptors, we found that 10 studies examined effects of light pollution and 24 studies examined effects of noise pollution. …


Drone Imagery Protocols To Map Vegetation Are Transferable Between Dryland Sites Across An Elevational Gradient, Anna Roser, Josh Enterkine, Juan M. Requena-Mullor, Nancy F. Glenn, Alex R. Boehm, Marie-Anne De Graaff, Patrick E. Clark, Fred Pierson, T. Trevor Caughlin Dec 2022

Drone Imagery Protocols To Map Vegetation Are Transferable Between Dryland Sites Across An Elevational Gradient, Anna Roser, Josh Enterkine, Juan M. Requena-Mullor, Nancy F. Glenn, Alex R. Boehm, Marie-Anne De Graaff, Patrick E. Clark, Fred Pierson, T. Trevor Caughlin

Biology Faculty Publications and Presentations

The structure and composition of plant communities in drylands are highly variable across scales, from microsites to landscapes. Fine spatial resolution field surveys of dryland plants are essential to unravel the impact of climate change; however, traditional field data collection is challenging considering sampling efforts and costs. Unoccupied aerial systems (UAS) can alleviate this challenge by providing standardized measurements of plant community attributes with high resolution. However, given widespread heterogeneity in plant communities in drylands, and especially across environmental gradients, the transferability of UAS imagery protocols is unclear. Plant functional types (PFTs) are a classification scheme that aggregates the diversity …