Digital Commons Network^™

Delineating Site-Specific Management Zones For Ph-Induced Iron Chlorosis, T. Kyaw, Richard B. Ferguson, Viacheslav I. Adamchuk, Dennis L. Mccallister, David B. Marx, D. D. Tarkalson

Department of Agronomy and Horticulture: Faculty Publications

Iron chlorosis can limit crop yield, especially on calcareous soil. Typical management for iron chlorosis includes the use of iron fertilizers or chlorosis tolerant cultivars. Calcareous and non-calcareous soil can be interspersed within fields. If chlorosisprone areas within fields can be predicted accurately, site-specific use of iron fertilizers and chlorosis-tolerant cultivars might be more profitable than uniform management. In this study, the use of vegetation indices (VI) derived from aerial imagery, on-the-go measurement of soil pH and apparent soil electrical conductivity (EC_a) were evaluated for their potential to delineate chlorosis management zones. The study was conducted at six …

Journals That Automatically Deposit In Nih Pubmed Central

NIH PubMed Central Depositors' Information

List of 405 journals (as of March 9, 2008) that automatically deposit all articles in PubMed Central. Publication in any of these journals will satisfy the NIH mandate for PubMed Central deposit of funded research--without any further effort on the authors' part.

The Genome Of Laccaria Bicolor Provides Insights Into Mycorrhizal Symbiosis, F. Martin, A. Aerts, D. Ahren, A. Brun, E. G. J. Danchin, F. Duchaussoy, J. Gibon, A. Kohler, E. Lindquist, V. Pereda, A. Salamov, H. J. Shapiro, J. Wuyts, D. Blaudez, M. Buee, P. Brokstein, B. Canback, D. Cohen, P. E. Courty, P. M. Coutinho, C. Delaruelle, J. C. Detter, A. Deveau, S. Difazio, S. Duplessis, L. Fraissinet-Tachet, E. Lucic, P. Frey-Klett, C. Fourrey, I. Feussner, G. Gay, J. Grimwood, P. J. Hoegger, P. Jain, S. Kilaru, J. Labbe, Y. C. Lin, V. Legue, F. Le Tacon, R. Marmeisse, D. Melayah, B. Montanini, M. Muratet, U. Nehls, H. Niculita-Hirzel, M. P. Oudot-Le Secq, M. Peter, H. Quesneville, B. Rajashekar, M. Reich, N. Rouhier, J. Schmutz, T. Yin, M. Chalot, B. Henrissat, U. Kues, S. Lucas, Y. Van De Peer, G. K. Podila, A. Polle, P. J. Pukkila, P. M. Richardson, P. Rouze, I. R. Sanders, J. E. Stajich, A. Tunlid, G. Tuskan, I. V. Grigoriev

United States Department of Energy: Publications

Mycorrhizal symbioses—the union of roots and soil fungi—are universal in terrestrial ecosystems and may have been fundamental to land colonization by plants. Boreal, temperate and montane forests all depend on ectomycorrhizae. Identification of the primary factors that regulate symbiotic development and metabolic activity will therefore open the door to understanding the role of ectomycorrhizae in plant development and physiology, allowing the full ecological significance of this symbiosis to be explored. Here we report the genome sequence of the ectomycorrhizal basidiomycete Laccaria bicolor (Fig. 1) and highlight gene sets involved in rhizosphere colonization and symbiosis. This 65-megabase genome assembly contains ~20,000 …

Diet Of The Striped Dolphin, Stenella Coeruleoalba, In The Eastern Tropical Pacific Ocean, William F. Perrin, Kelly M. Robertson, William A. Walker

United States Department of Commerce: Staff Publications

Knowledge of the trophic ecology of pelagic dolphins is important to understanding the ecosystem of the eastern tropical Pacific. Mesopelagic species predominated in the diet of 131 striped dolphins; the myctophid Lampanyctus parvicauda, a melamphaeid Melamphaes sp., and the enoploteuthid squid Abraliopsis affinis were the most numerous and most prevalent. Composition varied among four regions; fish predominated in three southerly regions, and fish and cephalopods occurred in about equal numbers in a region close to the northern tropical convergence. Prey for which length could be estimated ranged from about 2 to 17 cm in length. Most feeding occurred at …

Nebline, March 2008

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Eat Smart: How to Fill Up, Not Out!
Foods Which Help You Feel Full
Portion Control Tips
East Campus Walking Tour
All-America Selections for 2008
Easter Lily Care
Colony Collapse Disorder: Recent Loss of Hives a Mystery
Beginning Beekeeping 2-Day Workshop
Drain Flies
Voles
Rental Arrangements Changing with the Times Part 1 — Traditional Leases
Biosolids Improves Soil and Cuts Production Costs: Workshop March 3
Chemigation Training and Testing, March 6
Pioneer Farm Family Award Applications Due May 1
So You’re Considering an Orchard
Establishing a Commercial Vineyard
Plant Propagation: Grafting
Tiny Bites Total Big Calories!
Easy Deviled Eggs Recipe …

Lipid Extract Of Nostoc Commune Var. Sphaeroides Kützing, A Blue-Green Alga, Inhibits The Activation Of Sterol Regulatory Element Binding Proteins In Hepg2 Cells, Heather E. Rasmussen, Kara R. Blobaum, Young-Ki Park, Sarah J. Ehlers, Fan Lu, Ji-Young Lee

Department of Nutrition and Health Sciences: Faculty Publications

Nostoc commune var. sphaeroides Kützing (N. commune), a blue-green alga, has been used as both a food ingredient and in medicine for centuries. To determine the effect of N. commune on cholesterol metabolism, N. commune lipid extract was incubated at increasing concentrations (25–100 mg/L) with HepG2 cells, a human hepatoma cell line. The addition of N. commune lipid extract markedly reduced mRNA abundance of 3-hydroxy-3-methylglutaryl-CoA reductase (HMGR) and LDL receptor (LDLR) (P < 0.05), with a concomitant decrease in their protein expression (P < 0.001). Reduced HMGR activity by 90% with N. commune lipid extract confirmed the inhibitory role of N. commune in cholesterol synthesis (P < 0.006). To elucidate a molecular mechanism underlying the repression of HMGR and LDLR by N. commune lipid extract, expression of sterol regulatory …

Proceedings Of The 35th Annual Meeting, Southern Soybean Disease Workers (March 12-13, 2008, Pensacola, Florida), Allen Wrather, Daniel H. Poston, Clayton A. Hollier, Jason Bond, Steve R. Koenning

Southern Soybean Disease Workers: Conference Proceedings

Contents

Southern United States Soybean Disease Loss Estimate for 2007. Compiled by SR Koenning

Contributed papers (Clayton Hollier, moderator)

Effects of Row Spacing and Leaf Wetness on the Temporal and Spatial Spread of Soybean Rust within Soybean Canopies. DF Narváez, JJ Marois, DL Wright, and S Isard

Effects of Potassium, Chloride, and Minor Elements Nutrition on Asian Soybean Rust. RW Schneider, EP Mumma, CL Clark, and CG Giles

The Impact of Selected Fungicide Treatments on Disease Progress of Asian Soybean Rust and Other Diseases of Soybean. GB Padgett, MA Purvis, A Hogan, and S Martin

Soybean Sudden Death Syndrome Variety …

Amphiod Densities And Indices Of Wetland Quality Across The Upper-Midwest, Usa, Michael J. Anteau, Alan D. Afton

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

Nutritional, behavioral, and diet data for lesser scaup (Aythya affinis [Eyton, 1838]) indicates that there has been a decrease in amphipod (Gammarus lacustris [G. O. Sars, 1863] and Hyalella azteca [Saussure, 1858]) density and wetland quality throughout the upper-Midwest, USA. Accordingly, we estimated densities of Gammarus and Hyalella in six eco-physiographic regions of Iowa, Minnesota, and North Dakota; 356 randomly selected semi-permanent and permanent wetlands were sampled during springs 2004 and 2005. We also examined indices of wetland quality (e.g., turbidity, fish communities, aquatic vegetation) among regions in a random subset of these wetlands (n = 267). Gammarus …

Parasite Pathoecology Of Chacoan Great Houses: The Healthiest And Wormiest Ancestral Puebloans, Karl J. Reinhard

School of Natural Resources: Faculty Publications

Two fields of paleopathological investigation originated in the Southwest. Archaeoparasitology is the study ancient parasite infection (Reinhard 1990). It includes comparisons between time periods of single societies as well as the comparison of parasitism between different, contemporaneous cultures. For example, Fry (1980) compared Fremont and Anasazi parasitism. Fry (1984) compared Archaic hunter-gatherer parasitism and Ancestral Pueblo parasitism. All of these studies fall into the definition of Archaeoparasitology. Pathoecology is the reconstruction of the relationships between behavior, environment, and disease organisms in the development of ill-health (Martinson et al. 2003; Reinhard and Buikstra 2003, Reinhard et al. 2003, Santoro et al. …

Pathoecology And The Future Of Coprolite Studies In Bioarchaeology, Karl J. Reinhard, Vaughn M. Bryant Jr.

School of Natural Resources: Faculty Publications

Human coprolites currently provide an expanding array of information about the diet, health, and ecology of prehistoric people in the Southwest, but for many years coprolites were not recognized or preserved, or they were not considered important and thus were not saved (Bryant and Dean 2006). With the expansion of archaeological field work during the last half of the twentieth century archaeologists have increasingly explored the “complete” potentials of sites, including the collection and analysis of geomorphologic, botanical, and faunal data. In some ideal habitats (e.g., very dry or frozen) this includes exploring the scientific potential of human coprolite studies. …

University Of Nebraska–Lincoln Extension Connect, February 2008

Connect (University of Nebraska-Lincoln Extension)

Inside this issue:

pg. 3 Youth-adult partnerships
pg. 5 Beef home study
pg. 7 Leadership training

Nebline, February 2008

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Take Steps to Help Protect Your Property from Theft
Census of Agriculture FAQ’s
Forage Calendar
Computerized Farm Financial Recordkeeping Workshop, Feb. 16
Private Pesticide Applicator Trainings
Environmental Reasons Why Fruit Trees Fail to Bear
Establishing a Vineyard
Renovate Windbreaks to Improve Effectiveness
$tretch Your Food Dollar with Soup
Quick Chili Recipe
Almost Homemade Chicken Rice Soup Recipe
Find It Fast: Filing Food Appliance and Other Kitchen Gear Instruction Manuals
See “Red” on Valentine’s Day
Presidents’ Notes—Bonnie’s Bits
Household Hints: Keeping Comforters Clean and Cozy
FCE News & Events
Elderly Can Reap Computer Benefits
America Saves Week
Elderly Can Reap Computer …

Ard News February 2008

Agricultural Research Division: News and Annual Reports

CONTENTS:
Comments from the Dean
121st ARD Annual Report
Endeavors
New or Revised Projects November and December 2007
Proposals Submitted for Federal Grants November and December 2007
Grants and Contracts Received for November and December 2007
ARD Out-of-State Travel Policy - Professional Society Meetings
Fall 2007 Graduate Census

Repression Of Proinflammatory Gene Expression By Lipid Extract Of Nostoc Commune Var Sphaeroides Kützing, A Blue-Green Alga, Via Inhibition Of Nuclear Factor-Κb In Raw 264.7 Macrophages, Young-Ki Park, Heather E. Rasmussen, Sarah J. Ehlers, Kara R. Blobaum, Fan Lu, Vicki L. Schlegel, Timothy P. Carr, Ji-Young Lee

Department of Food Science and Technology: Faculty Publications

We investigated whether lipid extract from a blue-green alga, N. commune, modulates proinflammatory gene expression in RAW 264.7 macrophages. The cells were incubated with N. commune lipid extract (0–100 μg/mL) and subsequently activated by LPS (100 ng/mL). Quantitative real-time PCR analysis showed that mRNA abundance of proinflammatory mediators, including TNF-α, COX-2, IL-1β, IL-6, and iNOS, was significantly reduced by N. commune lipid extract in a dose-dependent manner. Secretion of TNF-α and IL-1β into cell culture medium was also significantly decreased by N. commune lipid extract. Thin-layer chromatography-densitometry analysis showed that N. commune …

Silvopasture: Establishment & Management Principles For Pine Forests In The Southeastern United States

United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications

Silvopasture is an agroforestry practice that integrates livestock, forage production, and forestry on the same land management unit. Silvopasture systems are deliberately designed and managed to produce a high-value timber product (such as sawtimber) in the long term while providing short-term annual economic benefit from a livestock component through the management of forage or an annual crop component.

Well-managed silvopasture systems may also:

• Improve overall economic performance of a farm enterprise through diversification and maintaining biodiversity

• Maintain or increase tree growth

• Improve cool-season grass production

• Allow warm-season grass production with careful canopy management

• Provide shade …

Decomposition Of Bt And Non-Bt Corn Hybrid Residues In The Field, David D. Tarkalson, Stephen D. Kachman, Johannes M. H. Knops, Janice E. Thies, Charles S. Wortmann

Department of Agronomy and Horticulture: Faculty Publications

Results of a previous laboratory study indicated that six transgenic crops expressing the Cry1Ab insecticidal protein from Bacillus thuringiensis (Bt) decomposed at a slower rate than their respective non-Bt isolines. Consequently, litter decomposition rates, nitrogen cycling, and carbon pools may change in agricultural systems as the result of the widespread use of Bt crops. In this study, we assessed the decomposition rates and chemical composition of commonly grown hybrids of Bt and non-Bt isolines of corn (Zea mays L.) in the field. Leaves, stalks, and cobs from two Bt corn hybrids (Pioneer 34N44 Bt and NC+ 4990 Bt) and their …

Lactic Acid Bacteria Cultures That Inhibit Food-Borne Pathogens: U.S. Patent No. Us 7,323,166 B2, Mindy M. Brashears, Divya Jaroni

School of Veterinary and Biomedical Sciences: Faculty Publications

The present invention provides methods and compositions for preventing or inhibiting human food-borne pathogens in animals, and methods for increasing feed efficiency in animals by administering to the animal effective amounts of probiotic lactic acid producing bacteria. Further provided are feed compositions comprising probiotic lactic acid producing bacteria. A preferred probiotic lactic acid producing bacteria is Lactobacillus acidophilus strain ATCC accession number PTA-5249. This bacterial strain inhibits nalidixic acid-resistant Escherichia coli 0157:H7.

Opportunities And Roadblocks In Utilizing Forages And Small Grains For Liquid Fuels, Gautam Sarath, Robert B. Mitchell, S. E. Sattler, Deanna L. Funnell, Jeffrey F. Pedersen, Robert A. Graybosch, Kenneth P. Vogel

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

This review focuses on the potential advantages and disadvantages of forages such as switchgrass (Panicum virgatum), and two small grains: sorghum (Sorghum bicolor), and wheat (Triticum aesitvum), as feedstocks for biofuels. It highlights the synergy provided by applying what is known from forage digestibility and wheat and sorghum starch properties studies to the biofuels sector. Opportunities therefore, exist to improve biofuel qualities in these crops via genetics and agronomics. In contrast to cereal crops, switchgrass still retains tremendous exploitable genetic diversity, and can be specifically improved to Wt a particular agronomic, management, and conversion …

The Leading Object: November/December 2008, John C. Owens

Leading Object

Perspectives; National Science Foundation grant advances4-H robotics curriculum; Extension dean named to CSREES Hall of Fame; UNL genetics course spurs Hoegemeyer’s interest in plant breeding; Holly completes PGA education; Faculty members visit Zamorano University in Honduras; Retirement opens new chapter for Mayo; Hamernik, Jackson named associate ARD deans; Osborne presents leadership awards

2008 Interior Least Tern And Piping Plover Monitoring, Research, Management, And Outreach Report For The Lower Platte River, Nebraska, Mary Bomberger Brown, Joel G. Jorgensen

School of Natural Resources: Faculty Publications

This document reports on our monitoring, research, management, and outreach activities during the past 12 months. The report was prepared to inform our partners and funding agencies of our activities and to provide a preliminary summary of results. These data analyses are not final and should be treated as such when citing information, data, or analyses found in this document.

The Interior Least Tern (Sternula antillarum athallassos) is a state and federal endangered species; it was first listed in 1985. The Piping Plover (Charadrius melodus) is a state and federal threatened species; it was also first …

Boom And Bust On The Great Plains: Déjà Vu All Over Again, Sandra Zellmer

Nebraska College of Law: Faculty Publications

Two books published in 2006 provide a compelling portrait of the "boom and bust" cycles that have plagued the Great Plains since European settlement. The Worst Hard Time: The Untold Story of Those Who Survived the Great American Dust Bowl and Ogallala Blue: Water and Life on the High Plains stand beside Mark Reisner's classic study of western water resources, Cadillac Desert, and Wallace Stegner's tribute to one of America's greatest conservationists, Crossing the Next Meridian: John Wesley Powell and the Second Opening of the West, as "must read" books for anyone who cares about the future of …

Science And Technology Policymaking: A Primer, Deborah D. Stine

Congressional Research Service Reports

Scientific and technical knowledge and guidance influences not just policy related to science and technology, but also many of today’s public policies as policymakers seek knowledge to enhance the quality of their decisions. Science and technology policy is concerned with the allocation of resources for and encouragement of scientific and engineering research and development, the use of scientific and technical knowledge to enhance the nation’s response to societal challenges, and the education of Americans in science, technology, engineering, and mathematics.

Science and engineering research and innovations are intricately linked to societal needs and the nation’s economy in areas such as …

When Chaparral And Coastal Sage Scrub Burn: Consequences For Mammals, Management, And More, Rachel Clark

Joint Fire Science Program Briefs (2007-2012)

The massive Cedar and Otay fires of 2003 in southern California offered researchers an unexpected opportunity to examine the effects of fi re on mammal communities. Jay Diffendorfer and his colleagues had already been sampling small mammal communities at the Rancho Jamul Ecological Reserve where the Otay fi re broke out. There the researchers could see the difference in small mammal communities, pre- and postfire and the impacts of postfire, exotic grass invasion. At the Cleveland National Forest, where the Cedar fire occurred, the team examined whether the size and severity of the fire affected small mammal communities, as well …

Earth And Fire: Forests Rely On Healthy Soils For A Well-Rounded Diet, Elise Lequire

Joint Fire Science Program Briefs (2007-2012)

Historically, frequent low-intensity, dormant-season fire shaped the landscape across a variety of forests in the United States, from eastern hardwood and hardwood/conifer mixtures to western coniferous forests. Decades of fire exclusion have resulted in heavy fuel loads and increased threat of severe wildfire compared to historic conditions in most forest types and also resulted in changes in forest composition compared to historic conditions. The Fire and Fire Surrogates Study (FFS) is the first to apply a standard experimental design to compare thinning, thinning followed by prescribed fire, and prescribed fire alone across a wide spectrum of ecological and economic variables. …

Priority Lincoln: We’Re Listening A Community Conversation On The City Budget

University of Nebraska Public Policy Center: Publications

This is a background document to prepare you for the Priority Lincoln: We’re Listening discussion on the Lincoln City Budget on April 12. This discussion guide is intended to serve as a jumping-off point for our upcoming conversation. The discussion is not a test of facts, but rather a chance to offer your perspectives on the issues with other Lincoln residents.

Teaching Advanced Life Sciences In An Animal Context: Agricultural Science Teacher Voices, Mark Balschweid, Alexandria Huerta

Department of Agricultural Leadership, Education, and Communication: Faculty Publications

The purpose of this qualitative study was to determine agricultural science teacher comfort with a new high school Advanced Life Science: Animal course and determine their perceptions of student impact. The advanced science course is eligible for college credit. The teachers revealed they felt confident of their science background in preparation for teaching the course and they emphasized their intensive science background in preparing to become agricultural science teachers. Teachers indicated they had significant background in advanced science concepts, but they hadn’t used the previous knowledge and it required effort to review the concepts related to the new course. Teachers …

Major Sponsored Programs And Faculty Awards For Research And Creative Activity 2007

Office of Research and Economic Development: Publications

This is the sixth annual “Major Sponsored Programs and Faculty Awards for Research and Creative Activity” report. This booklet highlights the successes of University of Nebraska–Lincoln faculty during 2007. It lists the funding sources, projects and investigators on major grants and sponsored program awards received during the year, as well as patents issued; published books and scholarship; fellowships and other recognitions; intellectual property licenses; and performances and exhibitions in the fine and performing arts. This impressive list grows each year and I am pleased to present evidence of our faculty’s accomplishments. Researchers at the University of Nebraska–Lincoln have pushed the …

The Leading Object: August 2008, John C. Owens

Leading Object

Perspectives;IANR partners with Chinese university to expand extension, research;‘Significant deficit’ results in closure of Keim Hall’s Soil Plant Analytical Laboratory;IANR partners with Chinese university to expand extension, research;Keim follows father’s footsteps at University of Nebraska;Fine arts college promotes IANR partnership in Italy;Boeckner new director at Panhandle center;Former UNL agronomy professor James Drew dies;Watts receives award from Argentina ag institute;Wheeler retires after 25 years at UNL;Balschweid is AgLEC’s new department head

Precision Of Descriptors For Percent Marrow Fat Content For Whitetailed Deer, Odocoileus Viriginianus, L. David Mech

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

Based on 168 records of both verbal descriptors of White-tailed Deer (Odocoileus virginianus) femur-marrow fat and percentage of fat measured later, “gelatinous” served well to distinguish fat < 46% from higher percentages. “Waxy” distinguished fat > 56%.

Elk Calf Survival And Mortality Following Wolf Restoration To Yellowstone National Park La Supervivencia Y La Mortalidad De Las Crı´As De Wapiti Tras La Restauracio´ N Del Lobo Al Parque Nacional De Yellowstone La Survie Et La Mortalite´ Des Faons De Wapitis Qui A Suivi La Re´Introduction Du Loup Au Parc De Yellowstone, S. M. Barber-Meyer, L. David Mech, P. J. White

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

We conducted a 3-year study (May 2003–Apr 2006) of mortality of northern Yellowstone elk (Cervus elaphus) calves to determine the cause for the recruitment decline (i.e., 33 calves to 13 calves/100 adult F) following the restoration of wolves (Canis lupus). We captured, fit with radiotransmitters, and evaluated blood characteristics and disease antibody seroprevalence in 151 calves ≤ 6 days old (68M:83F). Concentrations (x, SE) of potential condition indicators were as follows: thyroxine (T4; 13.8 µg/dL, 0.43), serum urea nitrogen (SUN; 17.4 mg/dL, 0.57), c-glutamyltransferase (GGT; 66.4 IU/L, 4.36), gamma globulins (GG; 1.5 g/dL, 0.07), and insulin-like …