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- Forest pest management (2)
- RNA interference (2)
- Acer saccharum (1)
- Adhesion (1)
- Agrilus planipennis (1)
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- Alternativas (1)
- Antisense rna (1)
- Arctostaphylos spp. (1)
- Biopolymers and renewable polymers (1)
- Bonding (1)
- California Bay Laurel (1)
- Carbon fiber (1)
- Chaparral ecosystem of California (1)
- Composite (1)
- Differential gene expression (1)
- DsRNA (1)
- DsRNA delivery (1)
- EST-SSR (1)
- Gene silencing (1)
- Growth regulating factors (1)
- HAP (1)
- Indicadores (1)
- J2 antibody (1)
- Lignin analysis (1)
- Lignin based carbon fiber (1)
- Matriz (1)
- Melt-spinning (1)
- MicroRNA396 (1)
- Microsatellite (1)
- Mycelium (1)
Articles 1 - 9 of 9
Full-Text Articles in Biotechnology
Practical Challenges In Delivering Dsrna For Woody Plant Protection, Zachary Bragg
Practical Challenges In Delivering Dsrna For Woody Plant Protection, Zachary Bragg
Theses and Dissertations--Entomology
Unprecedented weather events associated with climate change, coupled with extensive anthropogenic stresses, have reduced the effectiveness of traditional forest pest management approaches, which can no longer keep pace with invasive species overwhelming naïve landscapes and native pests experiencing eruptive and expansive outbreaks. Double-stranded RNA-(dsRNA) mediated gene silencing, a type of RNA interference (RNAi), has been coopted for use as a biopesticide against a multitude of agricultural and horticultural pests and could serve as a powerful tool for woody plant protection. While effective initiation of gene silencing and subsequent mortality have been demonstrated in multiple tree pests, effective and efficient methods …
Sequencing Antisense Transcriptome Of Populus Through Antisense/Sense Transcript Pair Enrichment, Emma V. Burke
Sequencing Antisense Transcriptome Of Populus Through Antisense/Sense Transcript Pair Enrichment, Emma V. Burke
Dissertations, Master's Theses and Master's Reports
Past transcriptome research on plants focused primarily on protein coding genes, and only recently researchers began looking into the non-protein coding regions that may play significant roles in gene regulation. Antisense RNA transcripts that are found naturally in the cell share complementary sequence with sense transcripts and have been shown to regulate expression of their sense counterparts. Since antisense RNA has been largely under-studied and difficult to sequence because of their low relative abundance, new methods are needed to target antisense RNA for efficient genome-wide profiling. To address this gap in methods to efficiently and cost effectively enrich antisense RNA …
Rna Interference For Emerald Ash Borer Suppression: Ecotoxicological Assessment And Delivery Methods, Flavia Pampolini
Rna Interference For Emerald Ash Borer Suppression: Ecotoxicological Assessment And Delivery Methods, Flavia Pampolini
Theses and Dissertations--Entomology
The emerald ash borer (EAB), Agrilus planipennis (Coleoptera: Buprestidae), is a highly invasive phloem-feeding insect native to Asia. It has killed millions of ash trees (Fraxinus spp.) since its accidental introduction into North America, causing profound economic and ecological impacts. RNA interference (RNAi) or double-stranded RNA (dsRNA)-mediated gene silencing is an emerging biotechnology that is developing as an innovative tool for pest management. Exogenous dsRNA triggers the RNAi pathway, silences genes, and disrupts protein function, causing insect mortality. RNAi has proven effective in reducing target gene expression and causing mortality in EAB; however, two aspects stand as barriers …
Understanding The Adhesion Mechanism In Mycelium-Assisted Wood Bonding, Wenjing Sun
Understanding The Adhesion Mechanism In Mycelium-Assisted Wood Bonding, Wenjing Sun
Electronic Theses and Dissertations
The increasing environmental awareness has led to an increased interest in developing more sustainable materials as alternatives to petroleum-derived products. Among different nature-based products, fungal-mycelium-based bio-composites have gained considerable attention in various applications. Multiple materials with different densities and structures and potential applications can be fabricated by inoculating filamentous white-rot fungi in lignocellulosic materials and other substrates. Different from lower-density as-grown foam-like mycelium composites, higher-density mycelium-lignocellulosic panels have the potential to replace commercial particleboard and fiberboard bonded by petroleum-based resins. This kind of composite can be produced by directly adding heat and pressure to the low-density foams or by assembling …
Analysis Of Symptom Expressions And Transmission Rates Caused By The Plant Pathogen Phytophthora Ramorum On Native Chaparral Plants From The Genus Arctostaphylos, Bharati Gaonker
Natural Sciences and Mathematics | Biological Sciences Master's Theses
Phytophthora ramorum is the causal agent of Sudden Oak death (SOD), ramorum dieback and ramorum leaf blight which affect both forest environments and nurseries. This oomycete pathogen has had a huge economic impact on the nursery and lumber industry. Forests in California have experienced substantial mortality of oaks affecting the forest dynamics and diversity. Our research investigates four native species and two ornamental cultivars of plants, which belong to the genus Arctostaphylos (manzanita) and are considered to be new hosts for P. ramorum in the chaparral ecosystem of California. Symptom expression and transmission rates were analyzed on Arctostaphylos glauca, …
Estrategias De Manejo Para Mejorar La Producción Piscícola En Un Sistema De Jaulas Flotantes Con Tilapia Roja Oreochromis Sp, En Montería, Córdoba, Carlos Alberto Sierra, Jaime Jenaro Maroso
Estrategias De Manejo Para Mejorar La Producción Piscícola En Un Sistema De Jaulas Flotantes Con Tilapia Roja Oreochromis Sp, En Montería, Córdoba, Carlos Alberto Sierra, Jaime Jenaro Maroso
Zootecnia
El presente estudio de caso es realizado en la Granja Las Acacias, en el municipio de Montería, capital del departamento de Córdoba; donde se encuentra una producción intensiva de tilapia roja (Oreochromis sp) en sistema de jaulas flotantes. Se determinaron los indicadores productivos en promedio para las 15 jaulas en 182 días, los cuales fueron: biomasa (879 kg/m3), conversión alimenticia (CA=2,41) y ganancia de peso diaria (0,92 g); además de parámetros fisicoquímicos del agua mediante equipos de la marca HACH, tales como oxígeno disuelto (OD=3,92mg/l), temperatura mínima (24C), temperatura máxima (32C ) y pH (7.5). Basados en el estado del …
Application Of Short Tandem Target Mimic (Sttm) Technique For Functional Analysis Of Micro-Rna396 In Transgenic Poplar Trees, Surattana Boonsai
Application Of Short Tandem Target Mimic (Sttm) Technique For Functional Analysis Of Micro-Rna396 In Transgenic Poplar Trees, Surattana Boonsai
Dissertations, Master's Theses and Master's Reports
Short Tandem Target Mimic (STTM) is a commonly technique used for functional studies of a number of genes in several plant model systems. However, very little is known about application of STTM technique in tree species. In this study, STTM was applied to knock down microRNA396 (miR396) in transgenic poplar trees for the first time. STTM396 expression resulted in dramatic decrease in miR396 expression levels leading to taller plants with larger leaves and larger leaf cell size. Additionally, an expression analysis of growth regulating factor genes (GRFs) that are members of miR396 target gene family showed up-regulation of GRF07 gene …
Development Of Gene-Based Microsatellite Markers In Acer Saccharum Marsh., Monica Harmon
Development Of Gene-Based Microsatellite Markers In Acer Saccharum Marsh., Monica Harmon
Dissertations, Master's Theses and Master's Reports
Sugar maple (Acer saccharum Marsh) is an important ecological and economic resource. Despite its significance, there are few molecular genetic resources available to date. This study used previously developed EST libraries generated for sugar maple and other hardwood species to develop and characterize EST-SSRs in sugar maple and test their transferability to other Acer species. Out of 58 markers tested, 22 showed amplification in the expected size range. From these, 16 polymorphic markers were selected to test transferability and 13 of these showed amplification in at least one other Acer species.
Value-Added Lignin Based Carbon Fiber From Organosolv Fractionation Of Poplar And Switchgrass, Andreas Attwenger
Value-Added Lignin Based Carbon Fiber From Organosolv Fractionation Of Poplar And Switchgrass, Andreas Attwenger
Masters Theses
Carbon fibers have unique properties that include high strength, low density and excellent chemical and thermal resistance. However, they have a low level of utilization because of their high price; typically around $30/kg for an entry level polyacrylonitrile (PAN) based carbon fiber. Low-cost carbon fibers derived from lignin are currently being investigated at the University of Tennessee, because using lignin as a precursor could significantly reduce production costs. Lignins obtained from the pulp and paper and the emerging biofuel industries have the potential to be used for carbon fiber production, however, they are typically unsuitable because of the high levels …