Life Sciences Commons^™

The Transcription Factor Vpxlnr Is Required For The Growth, Development, And Virulence Of The Fungal Pathogen Valsa Pyri, Feng He, Alex-Machio Kange, Jie Yang, Jiaxin Xiao, Rongbo Wang, Lu Yang, Yifan Jia, Zhengqing Fu, Yancun Zhao, Fengquan Liu

Faculty Publications

Pears (Pyrus sp.) are widely cultivated in China, and their yield accounts for more than 60% of global pear production. The fungal pathogen Valsa pyri is a major causal agent of pear canker disease, which results in enormous losses of pear production in northern China. In this study, we characterized a Zn₂Cys₆ transcription factor that contains one GAL4 domain and a fungal-trans domain, which are present in VpxlnR. The vpxlnR gene expression was upregulated in the invasion stage of V. pyri. To investigate its functions, we constructed gene deletion mutants and complementary strains. We observed …

The Nebraska Ranch Practicum, Jay Parsons, Travis Mulliniks, Troy Walz

Cornhusker Economics

The Nebraska Ranch Practicum is a multi-disciplinary, hands-on educational program designed to give participants the skills and education needed to succeed in today's ranching industry. The Practicum was established in 1999 as a “three-season” program designed to integrate information producers encounter throughout the beef production year into a framework for decision making. The Practicum seeks to improve decision-making skills, enhance stewardship of natural resources, improve skills critical for evaluation of ranching enterprises, and enhance ranch sustainability.

Lee Isaac Chung, Minari (2020): Having An Amerikorean Life, Nagehan Uzuner

Markets, Globalization & Development Review

Minari by Lee Isaac Chung is a drama which chronicles the life of a Korean family who moves to the USA during 1980s in pursuit for a better life. The acculturation process is experienced differently by family members. Children are mostly bored with their new life in the rural area of Arkansas while their mother, Monica, is terrified of living in a mobile home which is made of a truck trailer in the middle of nowhere. Meanwhile, the grandmother joins the family from Korea to take care of the kids with a more positive approach dealing with their struggles. The …

Chapter 19 - Bacteria, Janice M. Glime

Bryophyte Ecology Volume 2: Bryological Interaction

Explore the contents of Bryophyte Ecology, Volume 2, Chapter 19 - Bacteria by clicking the links above. For the Contents section of this ebook, as well as Volumes 1 through 5, please visit the Bryophyte Ecology Main Page.

Ebook sponsored by Michigan Technological University and the International Association of Bryologists.

The Unexpected Influence On Talent From Air Pollution, Singapore Management University

Perspectives@SMU

CUHK research shows air pollution in China is driving educated and skilled company executives to move away from highly polluted areas, hampering the performance of firms located there

Center For Grassland Studies, March 2022

Center for Grassland Studies: Newsletters

Contents

New Course: Research Experiences in Grasslands by Dan Uden

Center for Grassland Studies Policy Advisory Committee

Director’s Column by Jerry Volesky (Interim Director)

Educational Trunk to Focus on Grasslands by Cheryl Dunn

Form a Team and Grab Your Clubs by Scott Holly

Collaborative Adaptive Management for the Barta Brothers Ranch by Craig Allen

Nebraska Range Short Course, June 20-23

Registration Opens for 2022 Nebraska Ranch Practicum by Troy Walz

Nebraska Sandhills Rates as World’s Most Intact Prairie by Scott Schrage

Nebraska Youth Range Camp, June 6-9, Nebraska College of Technical Agriculture, Curtis, Nebraska

The Role Of Leaf Decomposition In Macroinvertebrate Colonization, Bethany Mabel Lian Schorr, Kevin Geedey

Independent Research Projects

Decomposition plays an important ecological role in carbon and nutrient cycling that supply food and energy resources to food webs. This study investigates the potential role that leaf decomposition of different leaf species may play in macroinvertebrate assemblages in upper Midwest streams. We hypothesized that the different decomposition rates experienced with different leaf species and in different streams would have an effect on invertebrate colonization due to the variance in nutrient availability. Due to altered fire regimes and other influences, forests are experiencing declines in fire-adapted, heliophytic species such as oaks and compositional shifts toward shade-tolerant, mesophytic species such as …

Smokejumper Obituary: Erwin, Roger W. “Wade” (Missoula 1959), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.

Male And Female Victims Experience Different Types Of Sexual Assault, Carolyn Allen, Samuel Payne, Julie Valentine

Library/Life Sciences Undergraduate Poster Competition 2022

Intro:

• Sexual assault kits (SAKs) contain forensic evidence and are collected following an assault
• Most research on SAK processing has been done with combined male and female assaults
• 10% of victims are male
• There is lots of research on female victims, but very little research on male victims

Polymer Coated Urea Microplastics: Sweet Corn, Benjamin T. Geary, C. J. Seely, B. G. Hopkins

Library/Life Sciences Undergraduate Poster Competition 2022

• Polymer Coated Urea (PCU) is beneficial for providing the food, fuel, and fiber needed for the nearly 8 billion people on earth.

• Microplastics, from a wide range of waste materials, pollute water bodies.

• One potential source of microplastics are from PCU fertilizers if the coatings are transported overland into water bodies.

• Various agricultural application methods vary in potential for surface runoff.

Objective • Determine the microplastic concentrations from runoff water for strip injection, surface unincorporated, and broadcast incorporated application in sweet corn.

Low-Cost Prosthetic Feet For Underserved Populations: A Comparison Of Gait Analysis And Mechanical Stiffness, Kaleigh Renninger, Brevin Banks, Dustin A. Bruening

Library/Life Sciences Undergraduate Poster Competition 2022

• Lower limb loss is an ongoing cause of disability throughout the world.
• Despite advancements in prosthetic technologies, there are numerous underserved populations in need of effective low-cost prosthetic foot options.

In-Class Evolution Discussions Change Bible Interpretation, Jessica Abele

Library/Life Sciences Undergraduate Poster Competition 2022

Conflict between religion and evolution is a major barrier for religious biology students. Educators have been working to increase evolution acceptance by using a variety of methods (e.g., increasing evolution knowledge, addressing creationism in class, etc.) with little success. However, recent research shows using a reconciliatory approach to evolution and religion increases evolution acceptance while overall religiosity is unaffected (Lindsay et al., 2019).

Genes Critical For Flagellar Motility In Agrobacterium Fabrum, Audrey Memmott, Joel Griffitts

Library/Life Sciences Undergraduate Poster Competition 2022

The flagellum contains 24 structural proteins that are vital for bacterial motility and virulence (Liu). Additionally, these structural proteins must be assembled in the correct order and orientation for a bacterium to be motile via its flagellum (Armitage). Our current knowledge regarding the flagellum is limited, however, because the majority of it comes from studies focused on Escherichia coli. To increase existing knowledge regarding the flagellum and the genes vital for its functionality, we attempted to define all the genes vital for flagellar motility in A. fabrum by analyzing motility when specific genes are disrupted.

Dietary And Energetic Trends Of The Invasive Asian Shore Crab, Tanner Reese, Blaine D. Griffen

Library/Life Sciences Undergraduate Poster Competition 2022

The Asian shore crab, Hemigrapsus sanguineus , is an invasive crab species that lives on the East Coast of the United States. It has become an important part of its invaded ecosystems and their energetic interactions. We studied this species’ energetics to better understand how they vary across season and latitude.

• The ratio of gut width to carapace width (“standardized gut size”) is indicative of long term diet quality in crabs (a larger gut corresponds to a lower average diet quality) (Griffen & Mosblack 2011)
• We measured standardized gut size and gut energy content to examine how this species’ diet …

The Effects Of Exercise On Inflammatory Biomarkers Over A 36-H Fast, Austin F. Duersch, Bruce W. Bailey, Landon S. Deru, Jacob Coleman, Hunter Chamberlain, Spencer Cleverly

Library/Life Sciences Undergraduate Poster Competition 2022

Diet-induced chronic inflammation has become a popular point of discussion over recent years in lifestyle medicine as studies have uncovered the effects that inflammation markers have on chronic diseases including heart disease, diabetes, and arthritis. Each time we eat, an immune response is stimulated resulting in increased levels of inflammatory biomarkers.1,2 Interventions to help lower inflammation could help promote longevity and decrease risk of chronic diseases. This study assessed the impact of an acute 36h fast with and without exercise at the beginning on inflammatory biomarkers IL-6, C-peptide, GIP, MCP-1, and TNF-alpha.

Prostate-Specific Antigen Screening According To Health Professional Counseling And Age In The United States, Seth A. Otto, Ray M. Merrill

Library/Life Sciences Undergraduate Poster Competition 2022

To determine the prevalence of PSA testing in men according to age, reasons for undergoing testing, and whether a discussion about harms and benefits took place with a doctor prior to testing.

Eeg As Successful Diagnostic Tool For Immune Effector Cell Associated Neurotoxicity Syndrome, Daniel Jones, Christine Eckhardt, Haoqi Sun, Ryan Tesh, Brandon Westover

Library/Life Sciences Undergraduate Poster Competition 2022

CAR T cell therapy was first proven effective in 2013¹ for the treatment of certain cancer s . However, its widespread adoption is still hindered by side effects like immune effector cell associated neurotoxicity syndrome (ICANS). Current research aims to better predict, diagnose, and treat ICANS so that CAR T cell therapy can be more widely applied. Although prior studies have attempted to identify an objective biomarker of ICANS² , current practice relies on clinical assessment to diagnose ICANS. We hypothesize that qualitative features of the EEG may be utilized to develop a physiological grading system of the …

Interruption Of Junctional Adhesion Molecules Shows Developmental Defects, Wesley Allen, Nathan Beckett, Lauren Hall, Emma Holdaway, Sion Jung, Meredith Mann, Spencer Thacker, Jacob Wengler, Cailey Winn, Dario Mizrachi, Michael Stark

Library/Life Sciences Undergraduate Poster Competition 2022

Development of the central nervous system, the brain and the spinal cord, starts initially with the formation of the neural tube. This vital process starts as a sheet of cells which then folds into a cylindrical structure in the early stages of embryo development (Fig1). Defects in the formation of the neural tube can lead to permanent disabilities in babies after birth. This is important to understand as current statistics show that approximately 300,000 babies are born annually with neural tube defects. (NTDs). In addition to NTDs there are many other dangerous birth defects that are important to understand as …

Introducing Xanthoria Parietina: Invasive, Naturalized, Or Opportunistic?, Mikele Baugh, Steve Leavitt

Library/Life Sciences Undergraduate Poster Competition 2022

Lichens are one of the world’s ubiquitous group of organisms. They have been documented from frigid tundras to arid deserts. While some species are known to be particularly hardy and flexible in their habitats, many species are linked to specific growing conditions. As the global climate changes, the geographical range for different growing conditions shifts. Economic trade and human travel provide new opportunities for species to access new locations that are beginning to develop habitable conditions. Xanthoria parietina has been observed in the Great Basin (a region outside of its typical coastal distribution) found in newly built horticultural landscapes. Individuals …

The Casnr L.I.N.K.S. Newsletter: Learning Innovation Network For K-12 Schools, Edition 3, March 2022, Bailey Feit, Tammy Mittelstet

CASNR L.I.N.K.S. Newsletter

The purpose of this L.I.N.K.S. newsletter is to provide a monthly update of opportunities and resources for K-12 schools to connect with the University of Nebraska's CASNR Food, Energy, Water, and Societal Systems (FEWS²) programs and partners.

Included in this edition:

Classroom resources for all levels

Eye on curriculum and resources

Teacher opportunities

List of new partnerships

Ask an expert

Eye on CASNR research: Trenton Franz

Send your students to campus

Success stories

Salicylic Acid And N-Hydroxypipecolic Acid At The Fulcrum Of The Plant Immunity-Growth Equilibrium, Alyssa Shields, Vanessa Shivnauth, Christian Danve M. Castroverde

Biology Faculty Publications

Salicylic acid (SA) and N-hydroxypipecolic acid (NHP) are two central plant immune signals involved in both resistance at local sites of pathogen infection (basal resistance) and at distal uninfected sites after primary infection (systemic acquired resistance). Major discoveries and advances have led to deeper understanding of their biosynthesis and signaling during plant defense responses. In addition to their well-defined roles in immunity, recent research is emerging on their direct mechanistic impacts on plant growth and development. In this review, we will first provide an overview of how SA and NHP regulate local and systemic immune responses in plants. We …

Survey Of Visual Opsin Evolution Across Caddisflies (Insecta: Trichoptera), Ashlynn Powell, Jacqueline Heckenhauer, Steffen Pauls, Paul Frandsen

Library/Life Sciences Undergraduate Poster Competition 2022

Caddisflies are a highly diverse order of aquatic insects. As eggs, larvae, and pupae, they occupy freshwater habitats, while as adults, they are generally aerial and terrestrial¹. Such varied environments call for a flexible and complex visual system. Visual systems are controlled by light-sensing molecules called opsins, which are categorized by the wavelength of light they are most sensitive to². In insects, these categories are:

• Long wavelength (LW)
• Short wavelength (SW)
• Ultraviolet wavelength (UV)

Adaptive duplication of opsin genes is the primary mechanism of evolution that allows for greater visual capacity³. While opsins have …

Overcoming Detrimental Potato Fungi In Potato Fields With The Secondary Metabolites Of Naturally Occurring Steptomyces, Hansan Jones, Jacob Anderson, Erik Kemp, Brad Geary, Matthew Madsen, Ryan Stewart

Library/Life Sciences Undergraduate Poster Competition 2022

• Fungal disease Silver scurf can cause 13% water loss and give poor aesthetic appeal, both of which reduce farmers profits (1,2).
• Pythium leak can result in up to 50% total loss of potatoes in storage (3)
• Streptomyces is the right candidate to mitigate or eliminate these losses because of its ability to survive in soil (4) and its history as a proven biocontrol for other plant pathogens (5).

The Mrna/Protein Relationship Is Fluid And Changes Across Tissue And Diseased States, Jose Humberto Giraldez Chavez, Sam Payne

Library/Life Sciences Undergraduate Poster Competition 2022

• Cancer is a dysregulated cell
• Molecular typing via DNA/RNA/protein
• Is RNA a proxy for cell?

Staying Hydrated: A Comparative Analysis Of Humectants In Human Skin, Ayden Olsen, Rachel Prince, Craig Reeves, Cassie Peterson, Jason Adams

Library/Life Sciences Undergraduate Poster Competition 2022

Humectants are an important class of compounds that attract and retain water within a cell. When mixed with water to create wetting solutions, humectants can prevent desiccation of cadaveric specimens. Recognizing a relative scarcity of comparative studies analyzing the effects of various wetting solutions on post preservation cadaveric maintenance, we utilized wet-dry analysis in order to compare the effects of four common humectants on water retention in human skin tissue. We created a concentration gradient for each humectant to identify the optimal concentrations of each compound for water retention, after which we compared water retention in tissue at the optimal …

Does Bathing After Sexual Assault Or Time Elapsed Have A Greater Effect On The Development Of Codis Eligible Dna Profiles?, Emily Black, Sam Payne, Julie Valentine, Leslie Miles

Library/Life Sciences Undergraduate Poster Competition 2022

Which has a greater effect on the development of CODIS eligible DNA profiles from SAKs – bathing/showering status of the victim or time between the assault and examination?

Comparison Of Tardigrade Extraction Methods, Abigail Andros

Library/Life Sciences Undergraduate Poster Competition 2022

It is a time-consuming process to pick tardigrades for an experiment. The standard method is to add water to the sample, then look through it and pick out tardigrades with a micropipette or small wire loop (Tsujimoto et al. 2015).

Improving The Germination Rate Of Gambel Oak (Quercus Gambelii) For Mineland Restoration, Ethan Ostraff, Christopher Miller, April Hulet, Bradley Geary, Kate Ruebelmann, Matthew Madsen

Library/Life Sciences Undergraduate Poster Competition 2022

Quercus gambelii Nutt. (Gambel oak) is an ecologically important species that provides food and shelter for many wildlife species. In areas impacted by disturbance, Q. gambelii is often the first woody perennial species to reestablish (USFS, 2016). The use of this species could be beneficial for the reclamation of mine sites in mountain shrubland areas of the western United States. However, due to the recalcitrant nature of these acorns (i.e. seeds that do not survive after drying or freezing), viability can quickly be lost after the acorns are harvested. Additionally, invasive weevils (Family Curculionidae) infest and kill oak acorns. These …

The Metabolic Effects Of Exercise And A Pre-Exercise Snack During A 30-Hour Fast, Katelynn Hales, Hil'ilei Chan, Landon S. Deru, Jake Moss, Bruce W. Bailey Ph.D.

Library/Life Sciences Undergraduate Poster Competition 2022

As incidence rates of chronic illnesses continue to increase, many pharmacological and lifestyle interventions have been undertaken to pinpoint effective treatment and prevention tools to combat them. One such intervention of recent interest includes the use of fasting. Ketones, a product of fat breakdown, are thought to be a key player in some of the health benefits achieved through fasting. Despite potential benefits, adhering to a fasting regimen can be difficult. While it is generally well-tolerated, some experience negative side effects,² indicating potential issues with long-term adherence. Heilbronn et al. suggest that a small meal on fasting days may be …

A Chromosome-Scale Assembly Of The Djulis (Chenopodium Formosanum) Genome, An Emerging Orphan Crop From Taiwan, Peter J. Maughan, Eric N. Jellen, John Sproul, Karol Krak, Tzu-Yun Huang, Tzu Che Lin, Beatriz Navarro Dominguez, Yung-Fen Huang, Kate Jaggi, David E. Jarvis

Library/Life Sciences Undergraduate Poster Competition 2022

Djulis (Chenopodium formosanum Koidz.) is a semi-domesticated Taiwanese native crop. It is a BCD-genome hexaploid (2n = 6x = 54) relative of the Andean-native allotetraploid (AABB) quinoa (C. quinoa). Djulis has been grown in a relatively small area by aboriginal Taiwanese, who use it primarily as a fermentation starter to produce ritual alcoholic beverages. Djulis’ seed protein, like that of quinoa, is complete in terms of its human dietary essential amino acid profile; the seed also offers a wide variety of nutritionally important vitamins and minerals. These nutritional attributes have attracted international attention as a novel, healthy grain option. We …