Life Sciences Commons^™

Abundance Of And Floral Herbivory On Exotic Bull Thistle Versus Native Tall Thistle In Western Tallgrass Prairie, Chad P. Andersen, Svata M. Louda

School of Biological Sciences: Faculty Publications

An important, yet poorly quantified mechanism to explain the failure of some exotic species to increase and spread is that indigenous natural enemies provide ecosystem resistance to invasiveness. To evaluate this idea, we hypothesized that spillover of native thistle-feeding floral insect herbivores onto Eurasian bull thistle (Cirsium vulgare) from the prairie native tall thistle (C. altissimum) helps limit bull thistle population growth and spread throughout the western tallgrass prairie region in Nebraska. To test this hypothesis, we quantified both the occurrence of bull thistle, a known invasive species worldwide, and the floral herbivory on it by …

Research Note: First Record Of Ancylostoma Malayanum (Alessandrini, 1905) From Brown Bears (Ursus Arctos L.), Mitsuhiko Asakawa, Scott Lyell Gardner, Tsutomu Mano

Harold W. Manter Laboratory of Parasitology: Faculty Publications

This is the first report of Ancylostoma malayanum (Alessandrini, 1905), subgenus Ceylancylostoma (Lichtenfels, 1980) from wild brown bears Ursus arctos L. The bears were collected by shooting in Wassamu-Cho province (44 [degrees] 80 [minutes] 59 [seconds] N, 142 [degrees] 82 [minutes] 99 [seconds] E), Hokkaido, Japan, November, 2003.

Mixed Epithelial And Stromal Tumour Of Kidney, Fozia Rauf, Nausheen Yaqoob, Akhtar Husain

Department of Pathology and Laboratory Medicine

Mixed epithelial and stromal tumour of kidney is a recently described, rare entity and includes cases previously termed as cystic hamartoma of renal pelvis and adult mesoblastic nephroma. We report a case of 36 years old female who presented with a history of recurrent loose stools for 5 years. During ultrasound abdomen, a solid right renal mass was incidentally found in upper pole of right kidney. On gross examination it was a 3.5 cm diameter mass which was microscopically composed of both epithelial and stromal components in the form of cystically dilated tubules and fascicles of spindle shaped cells. These …

Systemic Mastocytosis: A Rare Entity, Naveen Naz Syed, Bushra Moiz

Department of Pathology and Laboratory Medicine

An 18 year old female presented with generalized maculopapular rash and headaches. The skin and bone marrow biopsy revealed numerous mast cells which stained metachromatically with giemsa and toludine blue stains and showed positivity with CD68 and CD117 on immunohistochemistry. Her clinical presentation and laboratory findings were consistent with the diagnosis of indolent systemic mastocytosis. Because of the benign course of the disease, patient was offered only anti-histamine drugs that were quite successful in alleviating her symptoms.

A Matter Of Balance: Conservation And Renewable Energy, Jane M.F. Johnson, Don Reicosky, Ray Allmaras, Dave Archer, Wallace Wilhelm

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

As communities and a country, we have a monumental task to solve the energy and global climate change problems, while maintaining our capacity to produce food, feed, and fiber for an ever increasing world population. The severity of these problems is exacerbated by the universal desire for an increased standard of living, which invariably translates to more energy use, greater demand for products, and higher quality diets (usually in the form of more fresh fruits and vegetables and more animal protein). Agriculture and forestry are in a unique position as we attempt solve these opposing problems in the most beneficial …

Stewardship Plan For Four Conservation Easements Held By The Town Of Newfields, Jeffrey H. Taylor & Associates, Inc.

PREP Reports & Publications

In 2005 the Town of Newfields, NH was awarded a grant by the New Hampshire Estuaries Project. The Eligible Activity applied for, under the category of Land Conservation and Natural Resource Protection was “Development of monitoring plans for town-held easements on conservation lands”. The Town identified four properties on which the they hold conservation easements as the focus of the project. Newfields’ goal in applying for the grant were to have each property visited by the contractor and a local volunteer, conduct an interview with the landowner and a conduct a ground monitoring of the property. Following the visits, baseline …

Field Evaluation Of Herbicides On Rice 2005, Drew T. Ellis, Ronald E. Talbert, Marilyn R. Mcclelland

Arkansas Agricultural Experiment Station Research Series

Field studies to evaluate herbicides in rice weed management systems were conducted in 2005 at the Rice Research and Extension Center near Stuttgart, Arkansas. New herbicides, herbicide mixtures, and application timings were evaluated for weed control efficacy and rice tolerance. Results of these studies, in part, provide useful information to producers, fellow researchers, and the crop protection industry for the most effective, economical herbicide programs for successful rice production in Arkansas.

Negative Effect Of Zebra Mussels On Foraging And Habitat Use By Lake Sturgeon (Acipenser Fulvescens), D. J. Mccabe, Mark Beekey, A. Mazloff, I. E. Marsden

Biology Faculty Publications

1. Lake sturgeon (Acipenser fulvescens) are threatened or endangered throughout much of their range. Juvenile sturgeon utilize sandy and silty habitats extensively during their growth. Invasive zebra mussels change the nature of sandy and silty habitats because they settle on and coat the habitat with the shells of living and dead individuals. The potential impacts of this increased habitat complexity on lake sturgeon is unknown. 2. Juvenile lake sturgeon habitat choice was assessed in laboratory experiments, and zebra mussel impact on the foraging success of juvenile lake sturgeon on three different prey species was measured. 3. Sturgeon foraging on chironomids …

Tissue Glycogen And Extracellular Buffering Limit The Survival Of Red-Eared Slider Turtles During Anoxic Submergence At 3°C, Daniel E. Warren, Scott A. Reese, Donald C. Jackson

Faculty Articles

The goal of this study was to identify the factors that limit the survival of the red-eared slider turtle Trachemys scripta during long-term anoxic submergence at 3°C. We measured blood acid-base status and tissue lactate and glycogen contents after 13, 29, and 44 d of submergence from ventricle, liver, carapace (lactate only), and four skeletal muscles. We also measured plasma Ca²⁺, Mg²⁺, Na⁺, K⁺, Cl^-, inorganic phosphate (P_i), lactate, and glucose. After 44 d, one of the six remaining turtles died, while the other turtles were in poor …

Marine And Freshwater Cyanophages In A Laurentian Great Lake: Evidence From Infectivity Assays And Molecular Analyses Of G20 Genes, Steven W. Wilhelm, Matthew J. Carberry, Melanie L. Eldridge, Leo Poorvin, Matthew A. Saxton, Martina A. Doblin

OES Faculty Publications

While it is well established that viruses play an important role in the structure of marine microbial food webs, few studies have directly addressed their role in large lake systems. As part of an ongoing study of the microbial ecology of Lake Erie, we have examined the distribution and diversity of viruses in this system. One surprising result has been the pervasive distribution of cyanophages that infect the marine cyanobacterial isolate Synechococcus sp. strain WH7803. Viruses that lytically infect this cyanobacterium were identified throughout the western basin of Lake Erie, as well as in locations within the central and eastern …

Visualization Of Intracellular Transport Of Vesicular Stomatitis Virus Nucleocapsids In Living Cells, Subash C. Das, Debasis Nayak, You Zhou, Asit K. Pattnaik

School of Veterinary and Biomedical Sciences: Faculty Publications

The phosphoprotein (P) of vesicular stomatitis virus (VSV) is a subunit of the viral RNA polymerase. In previous studies, we demonstrated that insertion of 19 amino acids in the hinge region of the protein had no significant effect on P protein function. In the present study, we inserted full-length enhanced green fluorescent protein (eGFP) in frame into the hinge region of P and show that the fusion protein (PeGFP) is functional in viral genome transcription and replication, albeit with reduced activity. A recombinant vesicular stomatitis virus encoding PeGFP in place of the P protein (VSV-PeGFP), which possessed reduced growth kinetics …

Cross-Subtype T-Cell Immune Responses Induced By A Human Immunodeficiency Virus Type 1 Group M Consensus Env Immunogen†0--, Eric A. Weaver, Zhongjing Lu, Zenaido T. Camacho, Fatiha Moukdar, Hua-Xin Liao, Ben-Jiang Ma, Mark Muldoon, James Theiler, Gary J. Nabel, Norman L. Letvin, Bette T. Korber, Beatrice H. Hahn, Barton F. Haynes, Feng Gao

Nebraska Center for Virology: Faculty Publications

The genetic diversity among globally circulating human immunodeficiency virus type 1 (HIV-1) strains is a serious challenge for HIV-1 vaccine design. We have generated a synthetic groupMconsensus env gene (CON6) for induction of cross-subtype immune responses and report here a comparative study of T-cell responses to this and natural strain env immunogens in a murine model. Three different strains of mice were immunized with CON6 as well as subtype A, B, or C env immunogens, using a DNA prime-recombinant vaccinia virus boost strategy. T-cell epitopes were mapped by gamma interferon enzyme-linked immunospot analysis using five overlapping Env peptide sets from …

Ecological Fitting As A Determinant Of The Community Structure Of Platyhelminth Parasites Of Anurans, Daniel R. Brooks, Virginia León-Règagnon, Deborah A. Mclennan, Derek Zelmer

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Host-parasite associations are assumed to be ecologically specialized, tightly coevolved systems driven by mutual modification in which host switching is a rare phenomenon. Ecological fitting, however, increases the probability of host switching, creating incongruences between host and parasite phylogenies, when (1) specialization on a particular host resource is a shared characteristic of distantly related parasites, and (2) the resource being tracked by the parasite is widespread among many host species. We investigated the effect of ecological fitting on structuring the platyhelminth communities of anurans from a temperate forest and grassland in the United States and tropical dry and wet forests …

Effect Of Cultivation And Within-Field Differences In Soil Conditions On Feral Helianthus Annuus Growth In Ridge-Tillage Maize, Michael G. Burton, David A. Mortensen, John L. Lindquist

Department of Agronomy and Horticulture: Faculty Publications

Differences in weed population dynamics with respect to within-field heterogeneity are not well documented despite increasing interest in site-specific management of agro-ecosystems. The focus of this study was to determine if mechanical weed management (cultivation) and/or soil factors help to explain observed within-field distributions of feral common sunflower ( Helianthus annuus L.). The ridges and furrows created by the ridge–tillage system adds additional microsites to existing spatial heterogeneity for soil characteristics such as soil organic carbon (SOC) concentration. Experimental areas were selected on the basis of naturally high or low SOC concentration. Cultivation resulted in 100% mortality of H. annuus …

Chemical Evidence For Dietary Toxin Sequestration In The Asian Snake Rhabdophis Tigrinus, Deborah A. Hutchinson

Biological Sciences Theses & Dissertations

Rhabdophis tigrinus (Colubridae: Natricinae) is an oviparous, bufophagous (toad-eating) snake from eastern Asia that possesses defensive integumentary glands on the neck known as nuchal glands. These glands are used in antipredator displays and typically contain bufadienolide toxins. Whereas toads are known to synthesize bufadienolide steroids from cholesterol precursors, we found that chemically undefended R. tigrinus must sequester bufadienolides from ingested toads in order to exhibit these compounds in their nuchal glands. Chemically defended females are capable of provisioning their embryos with these toxins so their unfed hatchlings possess defensive bufadienolides prior to consuming toads themselves. All of the hatchling R. …

Cellular Mechanism Of Arglabin-Dimethylaminohydrochloride Cytotoxicity, Xiaofei Qin

Theses and Dissertations in Biomedical Sciences

Cancer is the second leading killer in the United States. Anticancer drug development is always based on the understanding of molecular and cellular mechanisms of carcinogenesis, as well as comprehensive knowledge of potential anticancer drugs. Arglabin-dimethylaminohydrochloride (arglabin-DMA) represents one of the new classes of anti-cancer agents that have shown promise in suppressing the growth of various tumor cells. However, the cellular mechanism of arglabin-DMA cytotoxic effects on tumor cells is still unclear. The current study was to determine the farnesyltransferase (FTase) inhibitory activity of arglabin-DMA and to investigate the effects of arglabin-DMA on three proteins: Ras, Rho and cyclin kinase …

The Land Is In Your Hands : A Practical Guide For Owners Of Small Rural Landholdings In Western Australia, Department Of Agriculture And Food, Wa

Bulletins 4000 -

This Bulletin discusses various aspects of managing a small farm or property in Western Australia, including soil and land care, vegetation and plant control on farm holdings, water resource management, biosecurity, plant, animal and insect pest control and livestock management.

Evidence For Absence Of Latch-Bridge Formation In Muscular Saphenous Arteries, Shaojie Han, John E. Speich, Thomas J. Eddinger, Krystina M. Berg, Amy S. Miner, Chris Call, Paul H. Ratz

Biological Sciences Faculty Research and Publications

Large-diameter elastic arteries can produce strong contractions indefinitely at a high-energy economy by the formation of latch bridges. Whether ownstream blood vessels also use latch bridges remains unknown. The zero-pressure medial thickness and lumen diameter of rabbit saphenous artery (SA), a muscular branch of the elastic femoral artery (FA), were, respectively, approximately twofold and half-fold that of the FA. In isolated FA and SA rings, KCl rapidly (s) caused strong increases in isometric stress (1.2 x 10⁵ N/m²) and intracellular Ca²⁺ concentration ([Ca²⁺]_i; 250 nM). By 10 min, [Ca²⁺]i declined …

Print Names And Classification, Larry A. Sagers

All Archived Publications

No abstract provided.

Hedges For Canadian Gardens, Larry A. Sagers, Trevor J. Cole

All Archived Publications

No abstract provided.

2006 Exeter River Alewife Festival, Theresa Walker

PREP Reports & Publications

On June 4, 2006, the Exeter River Local Advisory Committee (ERLAC) held the 6th Annual Exeter River Alewife Festival along the banks of the Squamscott River in downtown Exeter. Three dozen organizations exhibited at the Festival and event organizers estimate approximately 300 people attended the event despite the inclement weather. The purpose of the Festival was to increase awareness of the Exeter River watershed and the role it plays in the Great Bay ecosystem, as well as its role in providing drinking water, wildlife habitat, and scenic, historic and recreational resources for residents in the ten watershed towns. Funding provided …

Eelgrass Distribution In The Great Bay Estuary 2004, Frederick T. Short

PREP Reports & Publications

Eelgrass (Zostera marina) is an essential habitat for the Great Bay Estuary (GBE) because it provides food for wintering waterfowl and habitat for juvenile fish and shellfish. Eelgrass is the basis of an estuarine food chain that supports many of the recreationally, commercially and ecologically important species in the estuary. Additionally, eelgrass filters estuarine waters, removing both nutrients and suspended sediments from the water column. Eelgrass in the Great Bay Estuary is the largest monoculture in the State of New Hampshire and is considered a vital resource to the State’s marine environment. The UNH Seagrass Ecology Group has mapped the …

Anagallis Arvensis L., Gordon C. Tucker

Specimens by Name

No abstract provided.

Plant Disease Introduction, Larry A. Sagers

All Archived Publications

No abstract provided.

Trends In Duck Breeding Populations, 1955-2006, Preliminary Report, Khristi A. Wilkins, Mark C. Otto

All U.S. Government Documents (Utah Regional Depository)

No abstract provided.

Eighteenth Century Garden History, Larry A. Sagers

All Archived Publications

No abstract provided.

Flower Diseases, Larry A. Sagers

All Archived Publications

No abstract provided.

Wright State University College Of Education And Human Services Annual Report, July 1, 2005-June 30, 2006, College Of Education And Human Services, Wright State University

College of Education and Human Services Annual Reports

This Wright State University College of Education and Human Services annual report is from July 1, 2005 through June 30, 2006.

Properties Of Conductance And Inhibition Of Proton Channels: M2 From Influenza A Virus And Fo From Escherichia Coli Atp Synthase, Jeffrey C. Moffat

Theses and Dissertations

Proton channels are essential for many of the processes of life. The influenza A viral protein M2 is responsible for sensing the conditions necessary for viral RNA release. The proton-translocating FoF1 ATPase (ATP synthase) uses a proton gradient to drive adenosine triphosphate (ATP) synthesis. We have directly measured proton uptake in vesicles containing reconstituted M2 or FO by monitoring external pH after addition of valinomycin to vesicles with 100-fold diluted external [K+]. This proton flux assay was utilized to quantify proton flux through single M2 and Fo channels. Contrary to previous reports, proton uptake by M2 was not significantly altered …

Lake Mead National Recreation Area Sensitive Wildlife Species Monitoring And Analysis: Quarterly Progress Report, Period Ending June 30, 2006, Margaret N. Rees

Wildlife Monitoring

• Tortoise and tortoise habitat monitoring was conducted on the Northshore Road construction project, on the Southern Nevada Water Authority intake pipe project, the Frontier Telephone-Willow Beach project and the movie film at Temple Bar.
• A total of 25 tortoise education classes were given to 90 individuals.
• Evaluation of 3 potential sites for relict leopard frog translocations conducted but sites were not recommended.
• Head-starting and translocation efforts for relict leopard frogs continued. 1183 animals translocated so far this year.
• Relict Leopard Frog Conservation Team meeting held and yearly report completed.
• Continuation of data management and QA of GPS collar information from …