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- Arabidopsis (5)
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- Kentucky Alfalfa Conference (3)
- Plant (3)
- Tall fescue (3)
- Virus Replication (3)
- Animals (2)
- Beef Bash (2)
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- Molecular Sequence Data (2)
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- Plant and Soil Sciences Faculty Publications (15)
- Forage News (12)
- Theses and Dissertations--Plant and Soil Sciences (12)
- Plant Pathology Faculty Publications (10)
- Kentucky Alfalfa and Stored Forage Conference (9)
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- Kentucky Grazing Conference (9)
- Plant and Soil Sciences Faculty Patents (5)
- Forage Symposium at the Kentucky Cattlemen’s Convention (4)
- Horticulture Faculty Publications (4)
- Theses and Dissertations--Plant Pathology (4)
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Articles 1 - 30 of 91
Full-Text Articles in Life Sciences
Integration Of Developmental And Environmental Signals Via A Polyadenylation Factor In Arabidopsis, Man Liu, Ruqiang Xu, Carrie Merrill, Liwei Hong, Carol Von Lanken, Arthur G. Hunt, Qingshun Q. Li
Integration Of Developmental And Environmental Signals Via A Polyadenylation Factor In Arabidopsis, Man Liu, Ruqiang Xu, Carrie Merrill, Liwei Hong, Carol Von Lanken, Arthur G. Hunt, Qingshun Q. Li
Plant and Soil Sciences Faculty Publications
The ability to integrate environmental and developmental signals with physiological responses is critical for plant survival. How this integration is done, particularly through posttranscriptional control of gene expression, is poorly understood. Previously, it was found that the 30 kD subunit of Arabidopsis cleavage and polyadenylation specificity factor (AtCPSF30) is a calmodulin-regulated RNA-binding protein. Here we demonstrated that mutant plants (oxt6) deficient in AtCPSF30 possess a novel range of phenotypes--reduced fertility, reduced lateral root formation, and altered sensitivities to oxidative stress and a number of plant hormones (auxin, cytokinin, gibberellic acid, and ACC). While the wild-type AtCPSF30 (C30G) was …
Mono- And Digalactosyldiacylglycerol Lipids Function Nonredundantly To Regulate Systemic Acquired Resistance In Plants, Qing-Ming Gao, Keshun Yu, Ye Xia, M. B. Shine, Caixia Wang, Duroy Navarre, Aardra Kachroo, Pradeep Kachroo
Mono- And Digalactosyldiacylglycerol Lipids Function Nonredundantly To Regulate Systemic Acquired Resistance In Plants, Qing-Ming Gao, Keshun Yu, Ye Xia, M. B. Shine, Caixia Wang, Duroy Navarre, Aardra Kachroo, Pradeep Kachroo
Plant Pathology Faculty Publications
The plant galactolipids monogalactosyldiacylglycerol (MGDG) and digalactosyldiacylglycerol (DGDG) have been linked to the anti-inflammatory and cancer benefits of a green leafy vegetable diet in humans due to their ability to regulate the levels of free radicals like nitric oxide (NO). Here, we show that DGDG contributes to plant NO as well as salicylic acid biosynthesis and is required for the induction of systemic acquired resistance (SAR). In contrast, MGDG regulates the biosynthesis of the SAR signals azelaic acid (AzA) and glycerol-3-phosphate (G3P) that function downstream of NO. Interestingly, DGDG is also required for AzA-induced SAR, but MGDG is not. Notably, …
Forage News [2014-12], Department Of Plant And Soil Sciences, University Of Kentucky
Forage News [2014-12], Department Of Plant And Soil Sciences, University Of Kentucky
Forage News
- Kentuckians at AFGC
- Forages at KCA
- Select Forage Varieties Wisely
- How Good is Your Hay?
- 35th Kentucky Alfalfa Conference
- Vegetative Identification of Small Grains
- 2014 UK Robinson Center Mountain Ag Week a Success
- Transgenic Reduced-Lignin Alfalfa Gains Deregulation
Grazing And No-Till Cropping Impacts On Nitrogen Retention In Dryland Agroecosystems, Megan L. Mobley, Rebecca L. Mcculley, Ingrid C. Burke, Gary Peterson, David S. Schimel, C. Vernon Cole, Edward T. Elliott, Dwayne G. Westfall
Grazing And No-Till Cropping Impacts On Nitrogen Retention In Dryland Agroecosystems, Megan L. Mobley, Rebecca L. Mcculley, Ingrid C. Burke, Gary Peterson, David S. Schimel, C. Vernon Cole, Edward T. Elliott, Dwayne G. Westfall
Plant and Soil Sciences Faculty Publications
As the world's population increases, marginal lands such as drylands are likely to become more important for food production. One proven strategy for improving crop production in drylands involves shifting from conventional tillage to no-till to increase water use efficiency, especially when this shift is coupled with more intensive crop rotations. Practices such as no-till that reduce soil disturbance and increase crop residues may promote C and N storage in soil organic matter, thus promoting N retention and reducing N losses. By sampling soils 15 yr after a N tracer addition, this study compared long-term soil N retention across several …
Forage News [2014-11], Department Of Plant And Soil Sciences, University Of Kentucky
Forage News [2014-11], Department Of Plant And Soil Sciences, University Of Kentucky
Forage News
- Western Kentucky University Hosts Grazing Conference
- Kentucky Forage & Grassland Council Presents Annual Awards
- Beef Bash 2014
- National Hay Association Elects New Leaders
- 2014 KFGC Forage Spokesperson Contest
- National Alfalfa Seminar Increase Your Alfalfa Knowledge
- Dr. Temple Grandin to Open National Forage Conference
- Producers Features on 20th Forages at KCA Program
- Low- and Reduced-Lignin Alfalfas to Hit Market
- Sulfur Fertility for Alfalfa Production in Kentucky
Kentucky Forage Spokesperson Contest, Kentucky Forage And Grassland Council
Kentucky Forage Spokesperson Contest, Kentucky Forage And Grassland Council
Kentucky Grazing Conference
No abstract provided.
Can I Afford To Spray For Weeds?, Scott Flynn
Can I Afford To Spray For Weeds?, Scott Flynn
Kentucky Grazing Conference
A common question among managers of grazing operations is “At what level of weed pressure does it become economical to apply herbicides on pastures?” Unfortunately there isn’t just one answer to this question as production goals and practices differ between operations and even within an operation over time. Regardless, the real question being ask is if weed control will increase profit per acre.
Grazing Options For Fall And Winter, Edward N. Ballard
Grazing Options For Fall And Winter, Edward N. Ballard
Kentucky Grazing Conference
Feed costs represent the major cost in most livestock production systems. A recently completed analysis of 225 Standardized Performance Analysis (SPA) Beef Cow Records on herds in Illinois and Iowa showed that feed cost was the overriding factor determining profitability, explaining over 57 percent of the herd-to-herd variation.
Summer Grazing Options, S. Ray Smith, Krista Lea
Summer Grazing Options, S. Ray Smith, Krista Lea
Kentucky Grazing Conference
During the last 15 years there have been several new forage species that have emerged as useful in grazing systems and many new varieties have been released of traditional species. There are many sources of information on summer grazing options. We especially encourage you to read the publication written by Dr. Garry Lacefield and colleagues, “Extending Grazing and Reducing Stored Feed Needs” (AGR-199, www.uky.edu/Ag/Forage/agr199.pdf). I have used information from this publication and other publications from the University of Kentucky Forage Website (www.uky.edu/Ag/Forage) in writing this article.
Technical Service Provider: What Is It And Why Is It Important To You?, Bill Payne
Technical Service Provider: What Is It And Why Is It Important To You?, Bill Payne
Kentucky Grazing Conference
Progressive graziers and forage managers are continually looking to improve their operations’ productivity. The opportunity exists to have a Grazing Management Plan developed for your operation at little or no cost to you. By contacting your county NRCS office, you can apply to have this plan developed by a Technical Service Provider, an independent professional certified by NRCS.
Forage Legumes: Their Importance And Management In Profitable Livestock Systems, Ben M. Goff
Forage Legumes: Their Importance And Management In Profitable Livestock Systems, Ben M. Goff
Kentucky Grazing Conference
The landscape of most Kentucky operations is heavily dominated by the utilization of cool-season grasses as the primary source of forage for livestock. However, legumes species, such alfalfa and red or white clovers are an essential component to a complete forage-livestock system. Relative to grasses alone, incorporating legumes into a mixture has the benefits of improving the nutritive value of the available forage in the field, extending the grazing season by increasing the yield of forage during the early summer months, and providing a more economical source of N compared to commercial fertilizers. This paper will briefly describe each of …
Maximizing Stocker Gains On Pastures, Jeff Lehmkuhler
Maximizing Stocker Gains On Pastures, Jeff Lehmkuhler
Kentucky Grazing Conference
Stocker enterprises by definition utilize pasture forages to add weight to light weight feeder cattle. These operations add value to calves by assimilating small groups of calves and combining them into larger uniform packages. Stocker operators also enhance quality through livestock husbandry practices that “upgrade” feeders which could include castrating bulls, dehorning, improving immunity and other attributes. In an effort to optimize profit margins, stocker operators must manage feeders to ensure high rates of gain while finding a balance in stocking rates that provide adequate gains per acre.
Grazing Method: Tool Or Toolbox?, Garry D. Lacefield
Grazing Method: Tool Or Toolbox?, Garry D. Lacefield
Kentucky Grazing Conference
This conference makes the 15th consecutive year we have devoted a full day to Grazing. Kentucky is a great state for grazing animals since we have a relatively long pasture season, can grow many forage grasses and legumes and a long tradition of producing quality animal products from quality pasture. We have tremendous potential to improve our overall grazing efficiency and the discussion throughout the day will address many of the practical strategies for improvements.
Foreword And Kfgc Award Winners [2014], Garry D. Lacefield, Christi L. Forsythe
Foreword And Kfgc Award Winners [2014], Garry D. Lacefield, Christi L. Forsythe
Kentucky Grazing Conference
No abstract provided.
Warming Reduces Tall Fescue Abundance But Stimulates Toxic Alkaloid Concentrations In Transition Zone Pastures Of The U.S., Rebecca L. Mcculley, Lowell P. Bush, Anna E. Carlisle, Huihua Ji, Jim A. Nelson
Warming Reduces Tall Fescue Abundance But Stimulates Toxic Alkaloid Concentrations In Transition Zone Pastures Of The U.S., Rebecca L. Mcculley, Lowell P. Bush, Anna E. Carlisle, Huihua Ji, Jim A. Nelson
Plant and Soil Sciences Faculty Publications
Tall fescue pastures cover extensive acreage in the eastern half of the United States and contribute to important ecosystem services, including the provisioning of forage for grazing livestock. Yet little is known concerning how these pastures will respond to climate change. Tall fescue's ability to persist and provide forage under a warmer and wetter environment, as is predicted for much of this region as a result of climate change, will likely depend on a symbiotic relationship the plant can form with the fungal endophyte, Epichloë coenophiala. While this symbiosis can confer environmental stress tolerance to the plant, the endophyte …
Co-Opted Oxysterol-Binding Orp And Vap Proteins Channel Sterols To Rna Virus Replication Sites Via Membrane Contact Sites, Daniel Barajas, Kai Xu, Isabel Fernández De Castro Martín, Zsuzsanna Sasvari, Federica Brandizzi, Cristina Risco, Peter D. Nagy
Co-Opted Oxysterol-Binding Orp And Vap Proteins Channel Sterols To Rna Virus Replication Sites Via Membrane Contact Sites, Daniel Barajas, Kai Xu, Isabel Fernández De Castro Martín, Zsuzsanna Sasvari, Federica Brandizzi, Cristina Risco, Peter D. Nagy
Plant Pathology Faculty Publications
Viruses recruit cellular membranes and subvert cellular proteins involved in lipid biosynthesis to build viral replicase complexes and replication organelles. Among the lipids, sterols are important components of membranes, affecting the shape and curvature of membranes. In this paper, the tombusvirus replication protein is shown to co-opt cellular Oxysterol-binding protein related proteins (ORPs), whose deletion in yeast model host leads to decreased tombusvirus replication. In addition, tombusviruses also subvert Scs2p VAP protein to facilitate the formation of membrane contact sites (MCSs), where membranes are juxtaposed, likely channeling lipids to the replication sites. In all, these events result in redistribution and …
Experimental Approaches To Study Plant Cell Walls During Plant-Microbe Interactions, Ye Xia, Carloalberto Petti, Mark A. Williams, Seth Debolt
Experimental Approaches To Study Plant Cell Walls During Plant-Microbe Interactions, Ye Xia, Carloalberto Petti, Mark A. Williams, Seth Debolt
Horticulture Faculty Publications
Plant cell walls provide physical strength, regulate the passage of bio-molecules, and act as the first barrier of defense against biotic and abiotic stress. In addition to providing structural integrity, plant cell walls serve an important function in connecting cells to their extracellular environment by sensing and transducing signals to activate cellular responses, such as those that occur during pathogen infection. This mini review will summarize current experimental approaches used to study cell wall functions during plant-pathogen interactions. Focus will be paid to cell imaging, spectroscopic analyses, and metabolic profiling techniques.
The Involvement Of J-Protein Atdjc17 In Root Development In Arabidopsis, Carloalberto Petti, Meera Nair, Seth Debolt
The Involvement Of J-Protein Atdjc17 In Root Development In Arabidopsis, Carloalberto Petti, Meera Nair, Seth Debolt
Horticulture Faculty Publications
In a screen for root hair morphogenesis mutants in Arabidopsis thaliana L. we identified a T-DNA insertion within a type III J-protein AtDjC17 caused altered root hair development and reduced hair length. Root hairs were observed to develop from trichoblast and atrichoblast cell files in both Atdjc17 and 35S::AtDJC17. Localization of gene expression in the root using transgenic plants expressing proAtDjC17::GUS revealed constitutive expression in stele cells. No AtDJC17 expression was observed in epidermal, endodermal, or cortical layers. To explore the contrast between gene expression in the stele and epidermal phenotype, hand cut transverse sections of Atdjc17 roots were …
Haploid Induction Via In Vitro Gynogenesis In Tomato (Solanum Lycopersicum L.), He Zhao, Xiao-Xuan Wang, Yong-Cheng Du, De-Wei Zhu, Yan-Mei Guo, Jian-Chang Gao, Fei Li, John C. Snyder
Haploid Induction Via In Vitro Gynogenesis In Tomato (Solanum Lycopersicum L.), He Zhao, Xiao-Xuan Wang, Yong-Cheng Du, De-Wei Zhu, Yan-Mei Guo, Jian-Chang Gao, Fei Li, John C. Snyder
Horticulture Faculty Publications
In order to determine the potential for haploid induction via in vitro gynogenesis in tomato, the ovules and protoplasts of embryo sacs from the hybrids Zhongza 101 and Zhongza 105 were cultured. An efficient method of ovule isolation was established in this study. Using this method, 100-150 ovules could be isolated from one ovary. Isolated ovules were cultured on three induction media to induce gynogenesis in vitro. During culture, ovules were enlarged markedly, with opaque white color. When observed microscopically, there were cell divisions and cell clumps in embryo sacs. Subsequently, the cell clumps in embryo sacs ceased growth, likely …
Forage News [2014-10], Department Of Plant And Soil Sciences, University Of Kentucky
Forage News [2014-10], Department Of Plant And Soil Sciences, University Of Kentucky
Forage News
- Keynote Speakers Highlights Kentucky Grazing Conference
- Dr. Temple Grandin to Speak at Annual AFGC Conference
- Kentucky Cattlemen to Meat in Owensboro
- 35th Kentucky Alfalfa Conference - February 26, 2015
- Beware of Prussic Acid Poisoning as Frost Approaches
- Progressive Forage Grower - Surveys
- Farm Income is Forecast to Decline in 2014
- Annual Forage Calculator
- Kentucky Represented at National Hay Convention
Sesquiterpene Synthase Gene And Protein, Joe Chappell, Bryan T. Greenhagen
Sesquiterpene Synthase Gene And Protein, Joe Chappell, Bryan T. Greenhagen
Plant and Soil Sciences Faculty Patents
The invention relates to sesquiterpene synthases and methods for their production and use. Particularly, the invention provides nucleic acids comprising the nucleotide sequence of citrus valencene synthase (CVS) which codes for at least one CVS. The invention further provides nucleic acids comprising the nucleotide sequence coding for amino acid residues forming the tier 1 and tier 2 domains of CVS. The invention also provides for methods of making and using the nucleic acids and amino acids of the current invention.
Ergovaline Stability In Tall Fescue Based On Sample Handling And Storage Methods, Krista La Moen Lea, Lori Smith, Cynthia Gaskill, Robert Coleman, S. Ray Smith
Ergovaline Stability In Tall Fescue Based On Sample Handling And Storage Methods, Krista La Moen Lea, Lori Smith, Cynthia Gaskill, Robert Coleman, S. Ray Smith
Plant and Soil Sciences Faculty Publications
Ergovaline is an ergot alkaloid produced by the endophyte Neotyphodium coenophialum (Morgan-Jones and Gams) found in tall fescue [Schedonorus arundinacea (Schreb.) Dumort.] and blamed for a multitude of livestock disorders. Ergovaline is known to be unstable and affected by many variables. The objective of this study was to determine the effect of sample handling and storage on the stability of ergovaline in tall fescue samples. Fresh tall fescue was collected from a horse farm in central Kentucky at three harvest dates and transported on ice to the University of Kentucky Veterinary Diagnostic Laboratory. Plant material was frozen in liquid …
Fragipan Horizon Fragmentation In Slaking Experiments With Amendment Materials And Ryegrass Root Tissue Extracts, Anastasios D. Karathanasis, Lloyd W. Murdock, Christopher J. Matocha, John H. Grove, Yvonne L. Thompson
Fragipan Horizon Fragmentation In Slaking Experiments With Amendment Materials And Ryegrass Root Tissue Extracts, Anastasios D. Karathanasis, Lloyd W. Murdock, Christopher J. Matocha, John H. Grove, Yvonne L. Thompson
Plant and Soil Sciences Faculty Publications
Slaking experiments were conducted of fragipan clods immersed in solutions of poultry manure, aerobically digested biosolid waste (ADB), fluidized bed combustion byproduct (FBC), D-H2O, CaCO3, NaF, Na-hexa-metaphosphate, and ryegrass root biomass. The fragipan clods were sampled from the Btx horizon of an Oxyaquic Fragiudalf in Kentucky. Wet sieving aggregate analysis showed significantly better fragmentation in the NaF, Na-hexa-metaphosphate, and ryegrass root solutions with a mean weight diameter range of 15.5-18.8 mm compared to the 44.2-47.9 mm of the poultry manure, ADB, and FBC treatments. Dissolved Si, Al, Fe, and Mn levels released in solution were ambiguous. …
Polypeptides, Nucleic Acid Molecules, And Methods For Synthesis Of Triterpenes, Joe Chappell, Thomas D. Niehaus, Shigeru Okada, Timothy P. Devarenne, David Watt
Polypeptides, Nucleic Acid Molecules, And Methods For Synthesis Of Triterpenes, Joe Chappell, Thomas D. Niehaus, Shigeru Okada, Timothy P. Devarenne, David Watt
Plant and Soil Sciences Faculty Patents
This application relates to the polypeptides, nucleic acid molecules, vectors, transfected cells, and methods for synthesis of triterpenes, including botryococcene.
A Novel Partitivirus That Confers Hypovirulence On Plant Pathogenic Fungi, Xueqiong Xiao, Jiasen Cheng, Jinghua Tang, Yanping Fu, Daohong Jiang, Timothy S. Baker, Said A. Ghabrial, Jiatao Xie
A Novel Partitivirus That Confers Hypovirulence On Plant Pathogenic Fungi, Xueqiong Xiao, Jiasen Cheng, Jinghua Tang, Yanping Fu, Daohong Jiang, Timothy S. Baker, Said A. Ghabrial, Jiatao Xie
Plant Pathology Faculty Publications
Members of the family Partitiviridae have bisegmented double-stranded RNA (dsRNA) genomes and are not generally known to cause obvious symptoms in their natural hosts. An unusual partitivirus, Sclerotinia sclerotiorum partitivirus 1 (SsPV1/WF-1), conferred hypovirulence on its natural plant-pathogenic fungal host, Sclerotinia sclerotiorum strain WF-1. Cellular organelles, including mitochondria, were severely damaged. Hypovirulence and associated traits of strain WF-1 and SsPV1/WF-1 were readily cotransmitted horizontally via hyphal contact to different vegetative compatibility groups of S. sclerotiorum and interspecifically to Sclerotinia nivalis and Sclerotinia minor. S. sclerotiorum strain 1980 transfected with purified SsPV1/WF-1 virions also exhibited hypovirulence and associated traits similar …
Forage News [2014-09], Department Of Plant And Soil Sciences, University Of Kentucky
Forage News [2014-09], Department Of Plant And Soil Sciences, University Of Kentucky
Forage News
- Beef Bash 2014
- Advanced KY Grazing School at Eden Shale
- 15th Kentucky Grazing Conference
- Forage Quotes and Concepts: New Book Offers Fresh Approach to Forage-Livestock Management
- U.S. Ranking in Cattle
- U.S. Alfalfa Production to Grow by 11% in 2014, USDA Reports
- Grazing Drought Stressed Corn Stalks
- Strategies to Deal with Hay Shortages
Tombusvirus-Yeast Interactions Identify Conserved Cell-Intrinsic Viral Restriction Factors, Zsuzsanna Sasvari, Paulina Alatriste Gonzalez, Peter D. Nagy
Tombusvirus-Yeast Interactions Identify Conserved Cell-Intrinsic Viral Restriction Factors, Zsuzsanna Sasvari, Paulina Alatriste Gonzalez, Peter D. Nagy
Plant Pathology Faculty Publications
To combat viral infections, plants possess innate and adaptive immune pathways, such as RNA silencing, R gene and recessive gene-mediated resistance mechanisms. However, it is likely that additional cell-intrinsic restriction factors (CIRF) are also involved in limiting plant virus replication. This review discusses novel CIRFs with antiviral functions, many of them RNA-binding proteins or affecting the RNA binding activities of viral replication proteins. The CIRFs against tombusviruses have been identified in yeast (Saccharomyces cerevisiae), which is developed as an advanced model organism. Grouping of the identified CIRFs based on their known cellular functions and subcellular localization in yeast …
Forage News [2014-08], Department Of Plant And Soil Sciences, University Of Kentucky
Forage News [2014-08], Department Of Plant And Soil Sciences, University Of Kentucky
Forage News
- Forage Tour Photos
- Kentucky Forage & Grassland Council Field Day
- Choose Varieties Wisely
- A Farmer's Creed
- Understanding the 'Intensive' in Intensive Grazing
- Minimize Alfalfa Yield Loss Due to Wheel Traffic
- Alfalfa Acres up 2.4%; All Hay Down
The Hop-Like Stress-Induced Protein 1 Cochaperone Is A Novel Cell-Intrinsic Restriction Factor For Mitochondrial Tombusvirus Replication, Kai Xu, Jing-Yi Lin, Peter D. Nagy
The Hop-Like Stress-Induced Protein 1 Cochaperone Is A Novel Cell-Intrinsic Restriction Factor For Mitochondrial Tombusvirus Replication, Kai Xu, Jing-Yi Lin, Peter D. Nagy
Plant Pathology Faculty Publications
Recent genome-wide screens reveal that the host cells express an arsenal of proteins that inhibit replication of plus-stranded RNA viruses by functioning as cell-intrinsic restriction factors of viral infections. One group of cell-intrinsic restriction factors against tombusviruses contains tetratricopeptide repeat (TPR) domains that directly interact with the viral replication proteins. In this paper, we find that the TPR domain-containing Hop-like stress-inducible protein 1 (Sti1p) cochaperone selectively inhibits the mitochondrial membrane-based replication of Carnation Italian ringspot tombusvirus (CIRV). In contrast, Sti1/Hop does not inhibit the peroxisome membrane-based replication of the closely related Tomato bushy stunt virus (TBSV) or Cucumber necrosis virus …
Cell Type-Dependent Rna Recombination Frequency In The Japanese Encephalitis Virus, Wei-Wei Chiang, Chingkai Chuang, Mei Chao, Wei-June Chen
Cell Type-Dependent Rna Recombination Frequency In The Japanese Encephalitis Virus, Wei-Wei Chiang, Chingkai Chuang, Mei Chao, Wei-June Chen
Plant Pathology Faculty Publications
Japanese encephalitis virus (JEV) is one of approximately 70 flaviviruses, frequently causing symptoms involving the central nervous system. Mutations of its genomic RNA frequently occur during viral replication, which is believed to be a force contributing to viral evolution. Nevertheless, accumulating evidences show that some JEV strains may have actually arisen from RNA recombination between genetically different populations of the virus. We have demonstrated that RNA recombination in JEV occurs unequally in different cell types. In the present study, viral RNA fragments transfected into as well as viral RNAs synthesized in mosquito cells were shown not to be stable, especially …