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Articles 1 - 30 of 1051
Full-Text Articles in Life Sciences
The Effect Of Temperature On Seed Quality And Quantity In Crosses Between European (Populus Tremula) And Hybrid Aspens (P. Tremula X P. Tremuloides), L. Koviuranta, T. Latva-Karjanmaa, P. Pulkkinen
The Effect Of Temperature On Seed Quality And Quantity In Crosses Between European (Populus Tremula) And Hybrid Aspens (P. Tremula X P. Tremuloides), L. Koviuranta, T. Latva-Karjanmaa, P. Pulkkinen
Aspen Bibliography
Hybrid aspen (Populus tremula L. Populus tremuloides Michx.) plantations are expanding in Fennoscandia and the Baltic countries; however, the possible effects of plantations on the native European aspen (P. tremula) and the level of gene flow between European and hybrid aspen have not been investigated. We studied seed quantity and quality in intraspecific and interspecific crosses of the European and hybrid aspens over a two year period. In order to study whether elevated temperatures due to climate change would benefit the species differently, we performed the crosses in different temperatures. In both years, interspecific crosses produced more seeds with higher …
Local Filters Limit Species Diversity, But Species Pools Determine Composition, Tara K. Rajaniemi, Deborah E. Goldberg, Roy Turkington, Andrew R. Dyer
Local Filters Limit Species Diversity, But Species Pools Determine Composition, Tara K. Rajaniemi, Deborah E. Goldberg, Roy Turkington, Andrew R. Dyer
Faculty Publications
In a series of three experiments, we tested for effects of species pools, resource stress, and species interactions on four aspects of community structure: species richness, evenness, species composition, and functional group composition. We also examined whether the impacts of species interactions on the community varied with resource availability or species pool. Communities of sand dune annuals grew from seed bank samples collected from two sites in three different years, so that the species pool differed at two levels: the source site and the year of seed bank collection. Communities experienced one of three irrigation treatments and a range of …
Human Calmodulin Methyltransferase: Expression, Activity On Calmodulin, And Hsp90 Dependence, Sophia Magen, Roberta Magnani, Sitvanit Haziza, Eli Hershkovitz, Robert Houtz, Franca Cambi, Ruti Parvari
Human Calmodulin Methyltransferase: Expression, Activity On Calmodulin, And Hsp90 Dependence, Sophia Magen, Roberta Magnani, Sitvanit Haziza, Eli Hershkovitz, Robert Houtz, Franca Cambi, Ruti Parvari
Horticulture Faculty Publications
Deletion of the first exon of calmodulin-lysine N-methyltransferase (CaM KMT, previously C2orf34) has been reported in two multigene deletion syndromes, but additional studies on the gene have not been reported. Here we show that in the cells from 2p21 deletion patients the loss of CaM KMT expression results in accumulation of hypomethylated calmodulin compared to normal controls, suggesting that CaM KMT is essential for calmodulin methylation and there are no compensatory mechanisms for CaM methylation in humans. We have further studied the expression of this gene at the transcript and protein levels. We have identified 2 additional …
Fertilizer Management For Grass And Grass-Legume Mixtures, Richard Koenig, Mark Nelson, James Barnhill, Dean Miner
Fertilizer Management For Grass And Grass-Legume Mixtures, Richard Koenig, Mark Nelson, James Barnhill, Dean Miner
Associate Professor Mark Nelson
No abstract provided.
Traversing Swanton Road, 10th Ed., James A. West
Traversing Swanton Road, 10th Ed., James A. West
Academic, Government & Associated Organizational Research Resources
Situated at the northwest end of Santa Cruz County and occupying circa 30 square miles of sharply contrasted terrain, the Scott Creek Watershed concentrates within its geomorphological boundaries, at least 10-12% of California's flora, both native and introduced. Paradoxically, the use/abuse that the watershed has sustained over the past 140+ years, has not necessarily diminished the biodiversity and perhaps parallels the naturally disruptive but biologically energizing processes (fire, flooding, landslides and erosion), which have also been historically documented for the area for +60 years. This is an early edition of an extensive document by James A. West. Please visit the …
St John's Wort Drug Interactions, Hans Wohlmuth
St John's Wort Drug Interactions, Hans Wohlmuth
Dr Hans Wohlmuth
No abstract provided.
The Spring Migration Of Raptors In Southern Israel And Sinai, S Christensen, O Lou, M Miller, Hans Wohlmuth
The Spring Migration Of Raptors In Southern Israel And Sinai, S Christensen, O Lou, M Miller, Hans Wohlmuth
Dr Hans Wohlmuth
No abstract provided.
Bush Medicines Of Western Sydney, Hans Wohlmuth
Bush Medicines Of Western Sydney, Hans Wohlmuth
Dr Hans Wohlmuth
The knowledge of traditional Aboriginal use of medicinal plants in the Sydney area is almost non-existent. A number of plants growing in Mitchell Park, northwest of Sydney, are discussed in terms of their potential medicinal use by the traditional owners of the area. In the absence of records of medicinal plant use in the area, the discussion draws upon information from other areas of Australia. Aboriginal health prior to European settlement is also briefly discussed in an attempt to identify some of the ailments Aboriginal people may have found themselves treating with bush medicines. It is concluded that the area …
Pharmacognosy – Is It Really Relevant?, Hans Wohlmuth
Pharmacognosy – Is It Really Relevant?, Hans Wohlmuth
Dr Hans Wohlmuth
No abstract provided.
On Standardised Extracts, Hans Wohlmuth
On Standardised Extracts, Hans Wohlmuth
Dr Hans Wohlmuth
The author discusses the use of standardised extracts versus non- standardised extracts and addresses several issues raised in an earlier paper which he asserts contained grossly inaccurate information, incorrect assertions and insinuations about standardised extracts.
What Are Aflatoxins?, Hans Wohlmuth
What Are Aflatoxins?, Hans Wohlmuth
Dr Hans Wohlmuth
Aflatoxins are toxic secondary metabolites wh ich are rarely produced by species of mou Ids belonging to the genus Aspergillus. These moulds grow on stored plant foods, in particular peanuts, wheat and corn. In tropical countries an estimated 25% or more of the food may be contaminated with aflatoxins (Raven et al 1992).
Herbal Medicines- An Ethnobotanical Survey, Hans Wohlmuth
Herbal Medicines- An Ethnobotanical Survey, Hans Wohlmuth
Dr Hans Wohlmuth
No abstract provided.
Biologically Active Dibenzofurans From Pilidiostigma Glabrum, An Endemic Australian Myrtaceae, Qing-Yao Shou, Linda Banbury, Dane Renshaw, Eleanore Lambley, Htwe Mon, Graham Macfarlane, Hans Griesser, Michael Heinrich, Hans Wohlmuth
Biologically Active Dibenzofurans From Pilidiostigma Glabrum, An Endemic Australian Myrtaceae, Qing-Yao Shou, Linda Banbury, Dane Renshaw, Eleanore Lambley, Htwe Mon, Graham Macfarlane, Hans Griesser, Michael Heinrich, Hans Wohlmuth
Dr Hans Wohlmuth
In an effort to identify new anti-inflammatory and antibacterial agents with potential application in wound healing, five new dibenzofurans, 1,3,7,9-tetrahydroxy-2,8-dimethyl-4,6-di(2-methylbutanoyl)dibenzofuran (1), 1,3,7,9-tetrahydroxy-2,8-dimethyl-4-(2-methylbutanoyl)-6-(2-methylpropionyl)dibenzofuran (2), 1,3,7,9-tetrahydroxy-2,8-dimethyl-4,6-di(2-methylpropionyl)dibenzofuran (3), 1,3,7,9-tetrahydroxy-4,6-dimethyl-2-(2-methylbutanoyl)-8-(2-methylpropionyl)dibenzofuran (4), and 1,3,7,9-tetrahydroxy-4,6-dimethyl-2,8-di(2-methylpropionyl)dibenzofuran (5), were isolated from the leaves of Pilidiostigma glabrum together with one previously described dibenzofuran. Structure elucidation was achieved by way of spectroscopic measurements including 2D-NMR spectroscopy. Compounds with 2,8-acyl substitutions had potent antibacterial activity against several Gram-positive strains (MIC in the low micromolar range), while compounds with 4,6-acyl substitutions were less active. All compounds except 3 inhibited the synthesis of …
Differentially Expressed Genes In Populus Simonii×Populus Nigra In Response To Nacl Stress Using Cdna-Aflp, Lei Wang, Boru Zhou, Lili Wu, Baozhu Guo, Tingbo Jiang
Differentially Expressed Genes In Populus Simonii×Populus Nigra In Response To Nacl Stress Using Cdna-Aflp, Lei Wang, Boru Zhou, Lili Wu, Baozhu Guo, Tingbo Jiang
Dr Lei Wang
Salinity is an important environmental factor limiting growth and productivity of plants, and affects almost every aspect of the plant physiology and biochemistry. The objective of this study was to apply cDNA-AFLP and to identify differentially expressed genes in response to NaCl stress vs. no-stress in Populus simonii × Populus nigra in order to develop genetic resources for genetic improvement. Selective amplification with 64 primer combinations allowed the visualization of 4407 transcript-derived fragments (TDFs), and 2027 were differentially expressed. Overall, 107 TDFs were re-sequenced successfully, and 86 unique sequences were identified in 10 functional categories based on their putative functions. …
Factors Affecting Pharmacists Recommendation Of Complementary Medicines: A Qualitative Study Of Australian Pharmacists, Sarah Culverhouse, Hans Wohlmuth
Factors Affecting Pharmacists Recommendation Of Complementary Medicines: A Qualitative Study Of Australian Pharmacists, Sarah Culverhouse, Hans Wohlmuth
Dr Hans Wohlmuth
Background
Complementary medicines (CMs) are widely used by the Australian public, and pharmacies are major suppliers of these medicines. The integration of CMs into pharmacy practice is well documented, but the behaviours of pharmacists in recommending CMs to customers are less well studied. This study reports on factors that influence whether or not pharmacists in Australia recommend CMs to their customers.
Methods
Data were collected from semi-structured interviews with twelve practicing pharmacists based in Brisbane, Australia. The qualitative data were analysed by thematic analysis.
Results
The primary driver of the recommendation of CMs was a desire to provide a health …
Characterization Of Chemotype And Aggressiveness Of Nebraska Isolates Of Fusarium Graminearum, Anita Panthi
Characterization Of Chemotype And Aggressiveness Of Nebraska Isolates Of Fusarium Graminearum, Anita Panthi
Department of Agricultural Leadership, Education and Communication: Dissertations, Theses, and Student Scholarship
Fusarium head blight (FHB), caused mainly by Fusarium graminearum, is a devastating disease of wheat and other small grain cereals. FHB lowers grain yield and quality and contaminates grain with mycotoxins, predominantly deoxynivalenol (DON) and its acetylated derivatives 3-ADON and 15-ADON. Forty one Fusarium isolates collected from grain elevators and wheat fields in Nebraska in 2009 and 2010 were sequenced for molecular identification. Forty isolates were identified as F. graminearum and one isolate was identified as F. culmorum. Seventy seven F. graminearum isolates collected from grain elevators and wheat fields in Nebraska from 2007 to 2010 were tested …
Major Fusarium Diseases On Corn, Wheat, And Soybeans In Nebraska, Bo Liu, Loren J. Giesler, Tamra A. Jackson-Ziems, Stephen N. Wegulo, Robert M. Harveson, Kevin A. Korus, Robert N. Klein
Major Fusarium Diseases On Corn, Wheat, And Soybeans In Nebraska, Bo Liu, Loren J. Giesler, Tamra A. Jackson-Ziems, Stephen N. Wegulo, Robert M. Harveson, Kevin A. Korus, Robert N. Klein
Department of Plant Pathology: Faculty Publications
Fusarium species are associated with diseases of corn, wheat, and soybean, causing significant yield loss in Nebraska. Some produce mycotoxins that are harmful to humans and animals.
Updated Manuscript Submission Guidelines For The Prairie Naturalist, Christopher N. Jacques, Troy W. Grovenburg, Jonathan A. Jenks
Updated Manuscript Submission Guidelines For The Prairie Naturalist, Christopher N. Jacques, Troy W. Grovenburg, Jonathan A. Jenks
The Prairie Naturalist
These guidelines present updated policies and procedures for submitting scientific manuscripts for consideration for publication in The Prairie Naturalist (PNAT). These guidelines incorporate substantial changes that have occurred following a change in Editorial staff during January 2009, and update the online “Suggestions for Contributors” guidelines provided on the PNAT website (http://www.sdstate.edu/nrm/organizations/gpnss/tpn/index.cfm); these instructions supersede all previous guidelines.
Tables and appendices are included for common word expressions with superfluous wording (Table 1), examples of correct format and style guidelines for tables accompanying manuscripts (Table 2, Appendix A), guidance in properly preparing Research notes (Appendix B) and citing literature (Appendix …
Interior Least Tern Powerline Collision On The Lower Platte River, Lauren R. Dinan, Joel G. Jorgensen, Mary Bomberger Brown
Interior Least Tern Powerline Collision On The Lower Platte River, Lauren R. Dinan, Joel G. Jorgensen, Mary Bomberger Brown
The Prairie Naturalist
Collisions with electrical powerlines are a well-known documented cause of avian mortality (Avian Power Line Interaction Committee [APLIC] 1994, Savereno et al. 1996). Mortality caused by collisions with powerlines can be an important concern for many bird species, but is a serious conservation problem for threatened and endangered species because any mortality can have biological and legal ramifications (Janss 2000). Loss of individuals, particularly breeding adults, from an already small population may impede a species’ recovery by reducing reproduction and recruitment into the breeding population. The death of an individual from a threatened or endangered species as a result of …
Avian Diversity And Habitat Use On Wetland Reserve Program Lands In The Lower Missouri River Valley, Eric C. Hopps
Avian Diversity And Habitat Use On Wetland Reserve Program Lands In The Lower Missouri River Valley, Eric C. Hopps
The Prairie Naturalist
A primary objective of the Wetland Reserve Program (WRP) is to provide habitat for migratory birds throughout all seasons of the year. Comprehensive avian assessments are lacking and limit our ability to evaluate the benefits of the WRP to continental bird populations. I investigated avian species occurrence on WRP lands within the Lower Missouri River Valley (LMRV), Nebraska, USA, from March 2010 to February 2011. Ten WRP habitat types are described based on plant community assemblages and observed hydrological regimes. Estimates of avian species richness were greatest in lowland forest (n = 115), lowland woodland (n = 83) and upland …
Fish Assemblage Structure In Black Hills, South Dakota Streams, Luke D. Schultz, Sarah J. Lewis, Katie Nicole Bertrand
Fish Assemblage Structure In Black Hills, South Dakota Streams, Luke D. Schultz, Sarah J. Lewis, Katie Nicole Bertrand
The Prairie Naturalist
Understanding factors structuring fish assemblages in a particular area is valuable to both sport fishery management and native species conservation. Fish assemblages in the Black Hills are unique to South Dakota because they contain economically valuable introduced salmonids as well as native species of conservation need. Our objective was to examine the relationship between fish assemblages and geomorphic and reach-scale habitat features across multiple stream reaches in the Black Hills. Canonical correspondence analysis, a direct gradient ordination analysis, indicated that factors operating at multiple spatial scales interacted to structure fish assemblages. There also was indication of segregation between native species …
Detection Of Soybean Amino Acid Qtls And Seed Yield Qtls Using Selective Genotyping, Benjamin David Fallen
Detection Of Soybean Amino Acid Qtls And Seed Yield Qtls Using Selective Genotyping, Benjamin David Fallen
Doctoral Dissertations
The U.S. Census Bureau projects the world’s population will top more than nine billion by 2050. Today, soybeans account for 56 % of the world oilseed production and 68 % of the world protein meal consumption, with U.S. soybean production accounting for 33 % of the world soybean production. So, to meet the demand of the world’s growing population and of the livestock industry improvements in both the composition and the yield of soybean is essential.
The primary objective of this project was to use molecular markers to identify genomic regions associated with amino acid composition and yield in soybean. …
Efficacy Of Biopesticides For Organic Management Of Cucumber Beetles, Mary A. Rogers
Efficacy Of Biopesticides For Organic Management Of Cucumber Beetles, Mary A. Rogers
Doctoral Dissertations
Organic growers are limited in crop protection techniques for cucumber beetle management. Spotted (Diabrotica undecimpunctata howardi) and striped (Acalymma vitatta) cucumber beetles and are significant pests of cucurbits in the U.S. Feeding results in aesthetic damage and reduction in marketable yields as well as transmission of bacterial wilt that can result in plant mortality. Biopesticides are products formulated from naturally occurring organisms such as fungi and bacteria that are pathogenic or toxic to insect pests. Advantages to these products are that they have low environmental risk, low risk to non-target organisms including mammals and beneficial insects, …
Landscape Design, Cost Estimate, And Management Plan, Garrett Talbot Williams
Landscape Design, Cost Estimate, And Management Plan, Garrett Talbot Williams
Horticulture and Crop Science
The purpose of this project is to evolve a bleak landscape into something that the home owner can appreciate and love. This project will demonstrate the knowledge of this process to provide as a guide for others. This project gives an overview of all aspects of a landscape project including: drawings of an irrigation layout, planting plan, drainage plan, and a construction plan. This project takes place in Riverbank, California, which is located in the Central Valley. The property’s main centerpiece is a pool and adjacent waterfall. However, the landscape currently surrounding the pool is very bare and lacks aesthetic …
Forage News [2012-12], Department Of Plant And Soil Sciences, University Of Kentucky
Forage News [2012-12], Department Of Plant And Soil Sciences, University Of Kentucky
Forage News
- Farm Bureau Forage Commodity Conference
- AFGC will hold its Annual Meeting this January in Kentucky
- Forages at KCA
- Kentucky Small Ruminant Grazing Conference
- Heart of America Grazing Conference
- Choose Forage Varieties Wisely
- Hay Testing - A Wise Investment
- Energy-Crop Calculator Available Online
- Strong Hay Prices through Winter Maybe Longer
- Dairy Herd Expansion Unlikely in 2013
- What is Really Important?
Influence Of Nitrogen And Phosphorus On Ecosystem Co2 Exchange In A Restored Temperate Grassland, Lynn M. Socha
Influence Of Nitrogen And Phosphorus On Ecosystem Co2 Exchange In A Restored Temperate Grassland, Lynn M. Socha
Biology Theses
Nitrogen (N) and phosphorus (P) affect the structure and function of grasslands by altering plant competitive interactions, shifting patterns of above- and belowground biomass allocation, and by increasing net primary production. However, the influence of N and P on net ecosystem productivity is poorly understood. In the context of a field-based factorial N- and P-addition experiment, I measured soil moisture, leaf area index and component fluxes of ecosystem CO2 exchange throughout the growing season in a restored temperate grassland near Buffalo, New York. I predicted that N-addition would enhance ecosystem CO2 uptake (GEE) while P-addition would stimulate ecosystem …
Resistance Screening And Control Options For Glyphosate-Resistant Palmer Amaranth (Amaranthus Palmeri) In Cotton (Gossypium Hirsutum), Ryan Christopher Doherty
Resistance Screening And Control Options For Glyphosate-Resistant Palmer Amaranth (Amaranthus Palmeri) In Cotton (Gossypium Hirsutum), Ryan Christopher Doherty
Graduate Theses and Dissertations
In the mid-2000's, glyphosate-resistant Palmer amaranth biotypes began to emerge in many southern states. In 2006, glyphosate-resistant Palmer amaranth was identified in a field in Mississippi County, Arkansas. A greenhouse experiment was conducted in 2008 to screen Palmer amaranth accessions, collected in this survey, for glyphosate resistance. Inflorescence were collected from a total of 276 plants from fields were glyphosate failure occurred, representing 74 accessions in 14 counties, including Clay, Craighead, Crittenden, Greene, Jackson, Jefferson, Lawrence, Lee, Mississippi, Phillips, Poinsett, Randolph, St. Francis, and White Counties. Eight of the 74 accessions did not produce viable seed. In the greenhouse, 32 …
Relative Stability Of Plant Communities In A South Carolina High Salt Marsh, James O. Luken
Relative Stability Of Plant Communities In A South Carolina High Salt Marsh, James O. Luken
Biology
The high marsh in southeast Atlantic coast salt marshes forms a relatively small but ecologically important transition zone between low marsh and the terrestrial shoreline. However, long-term trend data from high marshes are limited to a few studies. Permanent plots established in a high marsh near Waties Island in northeast South Carolina were measured for plant coverage from 2002-2010. At the beginning and at the end of the study, four groups of plots were identified: mixed indicated by Borrichia frutescens, Distichlis spicata, and Fimbristylis castanea; Juncus indicated by Juncus roemerianus; Salicornia indicated by Salicornia virginica; and Spartina indicated by Spartina …
Liana Abundance, Diversity, And Distribution On Barro Colorado Island, Panama, Stefan A. Schnitzer, Scott A. Mangan, James W. Dalling, Claire A. Baldeck, Stephen P. Hubbell, Alicia Ledo, Helene Muller-Landau, Michael F. Tobin, Salomon Aguilar, David Brassfield, Andres Hernandez, Suzanne Lao, Rolando Perez, Oldemar Valdes, Suzanne Rutishauser Yorke
Liana Abundance, Diversity, And Distribution On Barro Colorado Island, Panama, Stefan A. Schnitzer, Scott A. Mangan, James W. Dalling, Claire A. Baldeck, Stephen P. Hubbell, Alicia Ledo, Helene Muller-Landau, Michael F. Tobin, Salomon Aguilar, David Brassfield, Andres Hernandez, Suzanne Lao, Rolando Perez, Oldemar Valdes, Suzanne Rutishauser Yorke
Biological Sciences Faculty Articles
Lianas are a key component of tropical forests; however, most surveys are too small to accurately quantify liana community composition, diversity, abundance, and spatial distribution – critical components for measuring the contribution of lianas to forest processes. In 2007, we tagged, mapped, measured the diameter, and identified all lianas ≥ 1 cm rooted in a 50-ha plot on Barro Colorado Island, Panama (BCI). We calculated liana density, basal area, and species richness for both independently rooted lianas and all rooted liana stems (genets plus clones). We compared spatial aggregation patterns of liana and tree species, and among liana species that …
Southeast South Dakota Experiment Farm Annual Progress Report, 2012, Agricultural Experiment Station
Southeast South Dakota Experiment Farm Annual Progress Report, 2012, Agricultural Experiment Station
Agricultural Experiment Station and Research Farm Annual Reports
This document highlights 23 crop and livestock research and demonstration reports from projects conducted at Southeast Research Farm in 2012. It is published by the South Dakota Agricultural Experiment Station and Cooperative Extension Service at South Dakota State University in cooperation with the Southeast South Dakota Experiment Farm Corporation. Reports in this document include information on: weather and climate data, corn production and performance, soybean research and planting, soil testing, alfalfa yield test, fertilizer testing, herbicide research, crop rotation, sorghum, small grains, swine research, and pest and weed control.