Index Catalog // ScholarsArchive@OSU

Is Resistance Futile: Examining Fitness Costs Associated with QoI Resistance in E. necator

Creator:: Newbold, Chelsea L.
Abstract:: Quinone outside Inhibitor (QOI) fungicides are one of the most widely used fungicide classes (FRAC 11) in the world. This popularity is the result of their ability to effectively manage a wide array of economically important pathogen species on a broad range of crops. While having mostly preventative activity, some...
Resource Type:: Masters Thesis
Full Text:: . Title: Is Resistance Futile: Examining Fitness Costs Associated with QoI Resistance in E. necator

The effects of a mutation within vitamin E biosynthesis upon the development and function of the photosynthetic apparatus

Creator:: Sicher, Richard Charles
Abstract:: A new photosystem-II mutant of the green alga Scenedesmus obliquus D₃, strain PS-28, has been shown to lack a-tocopherol (vitamin E). The photosynthetic activity of dark grown samples of PS-28 is about 20% of the wild-type control. Culturing the mutant at low light intentisites (10⁴ ergs/sec-cm ²) stimulates photosynthetic activity...
Resource Type:: Dissertation
Full Text:: The effects of a mutation within vitamin E biosynthesis

Gramene: Development and Integration of Trait and Gene Ontologies for Rice

Creator:: Jaiswal, Pankaj, Ware, Doreen, Ni, Junjian, Chang, Kuan, Zhao, Wei, Schmidt, Steven, Pan, Xiaokang, Clark, Kenneth, Teytelman, Leonid, Cartinhour, Samuel, Stein, Lincoln, and McCouch, Susan
Abstract:: Gramene (http://www.gramene.org/) is a comparative genome database for cereal crops and a community resource for rice. We are populating and curating Gramene with annotated rice (Oryza sativa) genomic sequence data and associated biological information including molecular markers, mutants, phenotypes, polymorphisms and Quantitative Trait Loci (QTL). In order to support queries...
Resource Type:: Article
Full Text:: , P., Ware, D., Ni, J., Chang, K., Zhao, W., Schmidt, S., ... & McCouch, S. (2002). Gramene

Gramene: a bird's eye view of cereal genomes

Creator:: Jaiswal, Pankaj, Ni, Junjian, Yap, Immanuel, Ware, Doreen, Spooner, William, Youens-Clark, Ken, Canaran, Payan, Fogleman, Molly, Hebbard, Claire, Ren, Liya, Liang, Chengzhi, Zhao, Wei, Ratnapu, Kiran, Faga, Benjamin, Avraham, Shuly, Schmidt, Steven, Casstevens, Terry M., Buckler, Edward S., Stein, Lincoln, and McCouch, Susan
Abstract:: Rice, maize, sorghum, wheat, barley and the other major crop grasses from the family Poaceae (Gramineae) are mankind’s most important source of calories and contribute tens of billions of dollars annually to the world economy (FAO 1999, http://www.fao.org; USDA 1997, http://www.usda.gov). Continued improvement of Poaceae crops is necessary in order...
Resource Type:: Article
Full Text:: . Ware, P. Jaiswal, J. Ni, I. V. Yap, X. Pan, K. Y. Clark, L. Teytelman, S. C. Schmidt, W. Zhao

Distribution of Acremonium coenophialum in developing seedlings and inflorescences of Festuca arundinacea

Creator:: Cook, Kathy L.
Abstract:: Acremonium coenophialum is an endophytic fungus which infects the reproductive and vegetative tissue of tall fescue. Interest in this fungus was sparked by research which linked its presence in tall fescue with reduced weight gains and alkaloid-like poisoning in cattle. Incomplete information was available on the endophyte's life or disease...
Resource Type:: Masters Thesis
Full Text:: infection are positively linked (Hoveland et al., 1980; Schmidt et al., 1982). Weight gains for steers

Mycorrhizal and other root endophytic fungi of lupines in the Pacific Northwest

Creator:: O'Dell, Thomas E.
Abstract:: We investigated the root endophytic fungi of lupine using four approaches: (1) occurrence of fungal colonization in field-collected roots; (2) growth response of L. latifolius to inoculation with two types of fungi; (3) structure of root colonizations of Pinus and Lupinus by Phialocephala fortinii, a septate endophytic fungus of lupine;...
Resource Type:: Dissertation
Full Text:: in the Pacific Northwest AN ABSTRACT OF THE THESIS OF Thomas E. O'Dell for the degree of Doctor

Characteristics of soil organic matter in two forest soils

Creator:: Crow, Susan E.
Abstract:: Soil organic matter (SOM) is the terrestrial biosphere's largest pool of organic carbon (C) and is an integral part of C cycling globally. Soil organic matter composition typically can be traced directly back to the type of detrital inputs; however, the stabilization of SOM results as a combination of chemical...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Susan E. Crow for the degree

Conservation of Rorippa columbiae : an evaluation of reintroduction potential through the study of germination ecology, propagation methods, and habitat requirements

Creator:: Kentnesse, Laura E.
Abstract:: Rare plant reintroductions are a critical conservation tool for the augmentation of diminishing populations, or re-establishment of extirpated populations. Analysis of reintroduction failures suggests that a sophisticated understanding of species biology, ecology, and habitat is essential for producing self-sustaining rare plant populations. This study sought to generate that background knowledge...
Resource Type:: Masters Thesis
Full Text:: THE THESIS OF Laura E. Kentnesse for the degree of Master of Science in Botany and Plant Pathology

Responses of Pacific Northwest prairies to soil nutrient manipulations : implications for restoration of Castilleja levisecta and control of invasive species

Creator:: Lawrence, Caitlin E.
Abstract:: Pacific Northwest prairies have become significantly reduced in extent, and in the Willamette Valley of Oregon, less than one percent of native upland prairies remain. Many species have been impacted by this extreme loss of habitat, including Castilleja levisecta (golden paintbrush), a threatened hemiparasitic forb species endemic to the Pacific...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Caitlin E. Lawrence for the degree of Master of Science in Botany

Effect of a broccoli green manure, soil solarization, and isolates of Verticillium dahliae on Verticillium wilt of agronomic and nursery crops

Creator:: Berlanger, Ingrid E.
Abstract:: Green manures, soil solarization, and long rotations with crops not susceptible to Verticillium wilt are among the disease management tactics currently under investigation as alternatives to chemical fumigation of soil. The effect of a broccoli green manure on soil microsclerotial populations of three isolates of Verticillium dahliae and on Verticillium...
Resource Type:: Masters Thesis
Full Text:: THESIS OF Ingrid E. Ber1anger for the degree ofMaster ofScience in Botany and PJant Pathology

The Influence of Nitrogen Fertility on Hop Quality, Pest Management, and the Stability of Biological Control

Creator:: Iskra, Anne E.
Abstract:: A multi-year field study was conducted in Oregon and Washington to evaluate the influence of nitrogen fertilization rate and timing on cone quality, nitrate accumulation in cones, severity of powdery mildew (caused by Podosphaera macularis), arthropod pests, and the stability of conservation biological control of the twospotted spider mite (Tetranychus...
Resource Type:: Masters Thesis
Full Text:: THESIS OF Anne E. Iskra for the degree of Master of Science in Botany and Plant Pathology presented

Establishment of Poria carbonica in wood and colonization by basidiomycetes of Douglas-fir utility poles during air seasoning

Creator:: Przybylowicz, Paul
Abstract:: Influence of temperature and wood moisture content on spore germination and colonization of Douglas-fir (Pseudotsuga jnenziesii) heartwood by Poria carbonica basidiospores and chlamydospores was studied. Both spore types germinated and colonized wood at moisture contents above the fiber saturation point, but not below. Germination and wood colonization occurred at 22°C...
Resource Type:: Dissertation
Full Text:: Douglas-fir Utility Poles During Air Seasoning Abstract approved: Redacted for privacy M. E. Corden

Dry coniferous forests in the Western Oregon Cascades

Creator:: Means, Joseph E.
Abstract:: Pseudotsuga menziesii dominates the forests of the Pacific Northwest. But though it is dominat, Tsuaa heteroohylla or Abies amabilis is usually climax. Many researchers have studied Pseudotsuga on the widespread mesic sites where it is seral, but few have examined the relatively rare ecosystems in which Pseudotsuga or its associate...
Resource Type:: Dissertation
Full Text:: districts, and the H.J. Andrew Experimental Ecological Reserve (HJA) in Oregon. The six mile by six mil-e

Methylisothiocyanate as a wood fumigant : fungitoxicity to Poria carbonica in wood and gelatin encapsulation for use in wood products

Creator:: Zahora, Andrew Roy
Abstract:: Experiments were conducted to determine both the influence of wood moisture content on the fungitoxicity of methylisothiocyanate (MIT) to the wood-decay fungus Poria carbonica, and the ability of gelatin to safely en-capsulate MIT for efficient treatment of wood products. The fungitoxicity of MIT was studied by determining the product of...
Resource Type:: Masters Thesis
Full Text:: and Gelatin Encapsulation for use in Wood Products Abstract approved: Redacted for Privacy M. E

Structure and Function of Foliar Fungal Communities of Populus trichocarpa Across its Native Range, Pacific Northwest, USA

Creator:: Barge, Edward G.
Abstract:: Foliar fungi – pathogens, endophytes, epiphytes – form taxonomically diverse communities that affect plant health and productivity. The composition of foliar fungal communities is variable at spatial scales both small (e.g., individual plants) and large (e.g., continents). However, few studies have focused on how environmental factors and host plant traits...
Resource Type:: Dissertation
Full Text:: : ______________________________________________________ Posy E. Busby Foliar fungi – pathogens, endophytes, epiphytes – form taxonomically

Genetic analysis of catechol siderophore by Erwinia carotovora

Creator:: Bull, Carolee Theresa, 1962-
Resource Type:: Dissertation
Full Text:: Erwinia carotovora Abstract approved: Dr. Joyce E. Loper Twenty-two strains of Erwinia carotovora

Serological and molecular approaches for distinguishing bean common mosaic and bean common mosaic necrosis potyviruses and their respective pathogroups

Creator:: Xu, Ling, 1963-
Abstract:: Polyclonal antisera were raised against isolates of bean common mosaic virus (BCMV) and bean common mosaic necrosis virus (BCMNV) using conventional serological methods. Infected tissues containing, respectively, 22 recognized BCMV and BCMNV isolates were tested against the two antisera by antigen-coated plate (ACP) ELISA and double antibody sandwich (DAS) ELISA....
Resource Type:: Masters Thesis
Full Text:: Ms Karen E. Keller, Dr. Paul D. Kohnen and Mr. Daniel L. Moore, for their various technical

Contrasting Epiphytic and Ground Layer Macrolichen Communities along the Coast-to-inland Climatic Gradient in Oregon

Creator:: Glauser, Abby L.
Abstract:: Cyanolichens, lichens with a cyanobacterial photobiont, benefit our ecosystems by the fixation of atmospheric nitrogen into a usable form for other organisms. They are highly sensitive to air pollution and require liquid water for photosynthesis. Many cyanolichen species frequently occur on the ground in the Pacific Northwest, however, most macrolichen...
Resource Type:: Masters Thesis
Full Text:: . 3) overlaid by hilltop plots of environmental and trait variables. (a,d) Total Plot, (b, e

Community Ecology and Population Genomics of Rhizopogon in the Madrean Sky Island Archipelago

Creator:: Piña Páez, Carolina G.
Abstract:: Anthropogenic induced climate change is predicted to alter distribution of existing plant populations. As plants migrate over space and time, populations often fragment and contract, affecting basic elements of population dynamics (e.g., population size, gene flow, genetic diversity, etc.). Little is known, however, how these impacts on plant species will...
Resource Type:: Dissertation

Interrelationship of wheat cultivar mixtures, stripe rust and yield

Creator:: Akanda, Shamsul I.
Resource Type:: Dissertation
Full Text:: special note of thanks goes to my committee members Kenneth B. Johnson, Mary L. Powelson, Warren E

Patterns in the occupancy and abundance of the globally rare lichen Erioderma pedicellatum in Denali National Park and Preserve, Alaska

Creator:: Stehn, Sarah E., Nelson, Peter R., Roland, Carl A., and Jones, Jennifer R.
Abstract:: We investigated habitat attributes related to the occupancy of the globally rare and endangered epiphytic lichen, Erioderma pedicellatum, in a newly discovered (2009) population center in Denali National Park and Preserve (DNPP), Alaska. We measured forest, tree and epiphytic lichen community characteristics on eighty-five systematically selected plots in four study...
Resource Type:: Article
Full Text:: lichen Erioderma pedicellatum in Denali National Park and Preserve, Alaska Sarah E. Stehn1,2, Peter R

Meta-Analysis Reveals a Critical Period for Management of Powdery Mildew on Hop Cones

Creator:: Nelson, Mark E., Gent, David H., and Grove, Gary G.
Abstract:: Results of 28 field trials conducted over a 12-year period investigating management of hop powdery mildew caused by Podosphaera macularis were quantitatively summarized by meta-analysis to compare product efficacy and use patterns by mode of action as defined by Fungicide Resistance Action Committee (FRAC) groups. Availability of original observations enabled...
Resource Type:: Article
Full Text:: Hop Cones Nelson, M. E., Gent, D. H., & Grove, G. G. (2015). Meta-analysis reveals a critical

Effect of Tannic Acid on the Transcriptome of the Soil Bacterium Pseudomonas protegens Pf-5

Creator:: Lim, Chee Kent, Penesyan, Anahit, Hassan, Karl A., Loper, Joyce E., and Paulsen, Ian T.
Abstract:: Tannins are a diverse group of plant-produced, polyphenolic compounds with metal-chelating and antimicrobial properties that are prevalent in many soils. Using transcriptomics, we determined that tannic acid, a form of hydrolysable tannin, broadly affects the expression of genes involved in iron and zinc homeostases, sulfur metabolism, biofilm formation, motility, and...
Resource Type:: Article
Full Text:: Bacterium Pseudomonas protegens Pf-5 Chee Kent Lim,a* Anahit Penesyan,a Karl A. Hassan,a Joyce E. Loper,b

Emerging semantics to link phenotype and environment

Creator:: Thessen, Anne E., Bunkers, Daniel E., Buttigieg, Pier Luigi, Cooper, Laurel D., Dahdul, Wasila M., Domisch, Sami, Franz, Nico M., Jaiswal, Pankaj, Lawrence-Dill, Carolyn J., Midford, Peter E., Mungall, Christopher J., Ramírez, Martín J., Specht, Chelsea D., Vogt, Lars, Aldo Vos, Rutger, Walls, Ramona L., White, Jeffrey W., Zhang, Guanyang, Deans, Andrew R., Huala, Eva, Lewis, Suzanna E., and Mabee, Paula M.
Abstract:: Understanding the interplay between environmental conditions and phenotypes is a fundamental goal of biology. Unfortunately, data that include observations on phenotype and environment are highly heterogeneous and thus difficult to find and integrate. One approach that is likely to improve the status quo involves the use of ontologies to standardize...
Resource Type:: Article
Full Text:: environment Emerging semantics to link phenotype and environment Thessen, A. E., Bunker, D. E., Buttigieg

Landscape Genomics and Climatic Responses of Willamette Valley Alders

Creator:: Kral, George L.
Abstract:: The climate of the Pacific Northwest is in flux, and existing forest ecosystems are stressed and poised to shift in fundamental ways, with or without human intervention. This dissertation probes the nature of forest responses to environmental change through investigations of morphology and genetics of three species of alder co-occurring...
Resource Type:: Dissertation

Risk of Exposure to Eastern Equine Encephalomyelitis Virus Increases with the Density of Northern Cardinals

Creator:: Estep, Laura K., McClure, Christopher J. W., Vander Kelen, Patrick, Burkett-Cadena, Nathan D., Sickerman, Stephen, Hernandez, José, Jinright, Joseph, Hunt, Brenda, Lusk, John, Hoover, Victor, Armstrong, Keith, Stark, Lillian M., Hill, Geoffrey E., and Unnasch, Thomas R.
Abstract:: For a variety of infectious diseases, the richness of the community of potential host species has emerged as an important factor in pathogen transmission, whereby a higher richness of host species is associated with a lowered disease risk. The proposed mechanism driving this pattern is an increased likelihood in species-rich...
Resource Type:: Article
Full Text:: Jinright4, Brenda Hunt5, John Lusk5, Victor Hoover5, Keith Armstrong5, Lillian M. Stark6, Geoffrey E. Hill2

Studies to facilitate reintroduction of golden paintbrush (Castilleja levisecta) to the Willamette Valley, Oregon

Creator:: Lawrence, Beth A.
Abstract:: Golden paintbrush (Castilleja levisecta Greenman) historically inhabited the prairies of the Willamette Valley, Oregon. However, this Pacific Northwest endemic is currently restricted to eleven sites in the Puget Trough of Washington and British Columbia. Recovery criteria call for the establishment of new populations throughout the species historic range, including the...
Resource Type:: Masters Thesis
Full Text:: only with F. roemeri, but did not differ from E. lanatum or no-host treatments. In the field, vole

Irrigation water and plant density effects on the epidemiology of aerial stem rot of potatoes

Creator:: Cappaert, Marlys R.
Abstract:: Field plots of cv. Russet Burbank potatoes from a single seedlot were established at four sites over two seasons (1985-86) in two locations in Oregon to determine the role of water-borne inoculum of Erwinia carotovora in plant infection. One site at each location was irrigated from a surface-water source and...
Resource Type:: Masters Thesis
Full Text:: as E. c. subsp. carotovora. About 25% of the E. c. subsp. carotovora strains recovered from all

Systematic, genomic, and transcriptomic analysis of mycoparasitic Tolypocladium species and their Elaphomyces hosts

Creator:: Quandt, C. Alisha
Abstract:: Fungi in the genus Tolypocladium are diverse in their host associations, but the predominant ecologies include parasites of the ectomycorrhizal genus Elaphomyces and pathogens of insects. The aim of this dissertation research is to examine the evolution of these fungi and their host associations. To accomplish this several lines of...
Resource Type:: Dissertation
Full Text:: Chapter 6. Like other ectomycorrhizal Ascomycota, E. granulatus is expanded in genome size, but has a

An overview of the BioCreative 2012 Workshop Track III: interactive text mining task

Creator:: Arighi, Cecilia N., Carterette, Ben, Cohen, K. Bretonnel, Krallinger, Martin, Wilbur, W. John, Fey, Petra, Dodson, Robert, Cooper, Laurel, Van Slyke, Ceri E., Dahdul, Wasila, Mabee, Paula, Li, Donghui, Harris, Bethany, Gillespie, Marc, Jimenez, Silvia, Roberts, Phoebe, Matthews, Lisa, Becker, Kevin, Drabkin, Harold, Bello, Susan, Licata, Luana, Chatr-aryamontri, Andrew, Schaeffer, Mary L., Park, Julie, Haendel, Melissa, Van Auken, Kimberly, Li, Yuling, Chan, Juancarlos, Muller, Hans-Michael, Cui, Hong, Balhoff, James P., Wu, Johnny Chi-Yang, Lu, Zhiyong, Wei, Chih-Hsuan, Tudor, Catalina O., Raja, Kalpana, Subramani, Suresh, Natarajan, Jeyakumar, Cejuela, Juan Miguel, Dubey, Pratibha, and Wu, Cathy
Abstract:: In many databases, biocuration primarily involves literature curation, which usually involves retrieving relevant articles, extracting information that will translate into annotations and identifying new incoming literature. As the volume of biological literature increases, the use of text mining to assist in biocuration becomes increasingly relevant. A number of groups have...
Resource Type:: Article
Full Text:: . Bretonnel Cohen3, Martin Krallinger4, W. John Wilbur5, Petra Fey6, Robert Dodson6, Laurel Cooper7, Ceri E

Copper and streptomycin resistance in Pseudomonas syringae isolated from Pacific Northwest nurseries

Creator:: Scheck, Heather J.
Resource Type:: Dissertation
Full Text:: lilac (cv. Ellen Willmott) in 1995, 1996, and 1997 177 Appendix E Population progress curves for

Photoinduction of kaurene synthetase, an enzyme of the gibberellin biosynthetic pathway, during de-etiolation of pea seedlings

Creator:: Gomez-Navarrete, Gladys
Abstract:: Previous investigations have shown that the enzymes catalyzing the biosynthesis of the gibberellin-type of hormones from mevalonic acid in plants are compartmentalized in plastids. Moreover, the activity of one of the key enzymes in the biosynthetic sequence, kaurene synthetase, exhibits markedly enhanced activity when a dark-grown pea seedling undergoes de-etiolation...
Resource Type:: Masters Thesis
Full Text:: plastid development. Hampp and Schmidt (1977) pre- sented evidence that phytochrome controls the

Bionomics of the clover cyst nematode, Heterodera trifolii (Goffart, 1932) Oostenbrink, 1939 (Nematoda: Heteroderidae)

Creator:: Sen, Arun Kumar
Resource Type:: Masters Thesis
Full Text:: Conetop Underbridge Bullae H. rostochiensis Spherical Wollenweber. 1923 H. schachtii Schmidt. 1871

Bionomics of the hop cyst nematode, Heterodera humuli Filipjev, 1934 (Nematoda : Heteroderidae)

Creator:: Sen, Arun Kumar
Abstract:: The hop cyst nematode, Heterodera humuli Filipjev, 1934 was first reported from Europe in 1894, however, very little is known with respect to the biology and economic importance of this pest. Abundant material from Oregon hop yards provided an excellent opportunity to add additional details concerning the bionomics of this...
Resource Type:: Dissertation
Full Text:: Filipjev, 1934 belongs to the genus Heterodera Schmidt, 1871, an important cosmo- politan group of

Thauera butanivorans sp. nov., a C₂–C₉ alkane-oxidizing bacterium previously referred to as ‘Pseudomonas butanovora’

Creator:: Dubbels, Bradley L., Sayavedra-Soto, Luis A., Bottomley, Peter J., and Arp, Daniel J.
Abstract:: The placement of ‘Pseudomonas butanovora’ in the genus Thauera was proposed previously, based on 16S rRNA gene sequence analysis, upon further studies of taxonomical characteristics. In this study, physiological characteristics and DNA–DNA reassociation data are presented and the transfer of ‘P. butanovora’ to the genus Thauera is proposed. The original...
Resource Type:: Article
Full Text:: Institutes of Health, grant no. 5RO1 GM56128-06 (D. J. A.). References Alber, B. E., Spanheimer, R., Ebenau

Maize Metabolic Network Construction and Transcriptome Analysis

Creator:: Monaco, Marcela K., Sen, Taner Z., Dharmawardhana, Palitha D., Ren, Liya, Schaeffer, Mary, Naithani, Sushma, Amarasinghe, Vindhya, Thomason, Jim, Harper, Lisa, Gardiner, Jack, Cannon, Ethalinda K.S., Lawrence, Carolyn J., Ware, Doreen, and Jaiswal, Pankaj
Abstract:: A framework for understanding the synthesis and catalysis of metabolites and other biochemicals by proteins is crucial for unraveling the physiology of cells. To create such a framework for Zea mays L. subsp. mays (maize), we developed MaizeCyc, a metabolic network of enzyme catalysts, proteins, carbohydrates, lipids, amino acids, secondary...
Resource Type:: Article
Full Text:: Scanlon, 2009). Th e discovery of molecu- lar interactions that lead to desirable traits in this crop is

Ecology of benthic microalgae of estuarine intertidal sediments

Creator:: Riznyk, Raymond Zenon
Abstract:: The benthic microalgae of sediments of the two tidal flats in Yaquina Bay, Oregon were investigated to determine the environmental factors limiting the abundance and the horizontal and vertical distribution of these organisms. The Southbeach tidal flat which is under the marine realm of deposition consists of fine to medium...
Resource Type:: Dissertation
Full Text:: . e. New York, Tokyo, London, Shanghai, Buenos Aires, Osaka, and Los Angeles. Dredging, diking, and

Identification and Characterization of Human Cytomegalovirus-Encoded MicroRNAs

Creator:: Grey, Finn, Antoniewicz, Andy, Allen, Edwards, Saugstad, Julie, McShea, Andy, Carrington, James C., and Nelson, Jay
Abstract:: MicroRNAs (miRNAs) are an extensive class of noncoding genes that regulate gene expression through posttranscriptional repression. Given the potential for large viral genomes to encode these transcripts, we examined the human cytomegalovirus AD169 genome for miRNAs using a bioinformatics approach. We identified 406 potential stem-loops, of which 110 were conserved...
Resource Type:: Article
Full Text:: Sciences University, Portland, OR 97201. Phone: (503) 494-2434. Fax: (503) 494-6862. E-mail: greyf@ohsu.edu

Gramene: a growing plant comparative genomics resource

Creator:: Liang, Chengzhi, Jaiswal, Pankaj, Hebbard, Claire, Avraham, Shuly, Buckler, Edward S., Casstevens, Terry, Hurwitz, Bonnie, McCouch, Susan, Ni, Junjian, Pujar, Anuradha, Ravenscroft, Dean, Ren, Liya, Spooner, William, Tecle, Isaak, Thomason, Jim, Tung, Chih-wei, Wei, Xuehong, Yap, Immanuel, Youens-Clark, Ken, Ware, Doreen, and Stein, Lincoln
Abstract:: Gramene (www.gramene.org) is a curated resource for genetic, genomic and comparative genomics data for the major crop species, including rice, maize, wheat and many other plant (mainly grass) species. Gramene is an open-source project. All data and software are freely downloadable through the ftp site (ftp.gramene.org/pub/gramene) and available for use...
Resource Type:: Article
Full Text:: ., Buckler, E. S., Casstevens, T., ... & Stein, L. (2008). Gramene: a growing plant comparative genomics

Analysis and prediction of patterns in lichen communities over the western Oregon landscape

Creator:: Peterson, Eric B.
Abstract:: The diverse lichen flora of the Pacific Northwest is being impacted by population growth and by forest management practices. Accumulating information about our lichen flora will improve our conservation strategies. This dissertation first collects information to improve our understanding of how lichen communities vary among forests of differing structure, and...
Resource Type:: Dissertation
Full Text:: * E = Bryoria pseudofuscescens***, F = Usnea longissima****). (G-I) Matrix lichens (G = Hypogymnia

Yosemite region nitrogen deposition and patterns in the composition of lichen communities

Creator:: Hutten, Martin
Abstract:: This dissertation describes patterns in epiphytic macrolichen community composition along a nitrogen deposition gradient in the Yosemite region of the Sierra Nevada in California. This region is part of the largest federal air quality Class 1 designated air-shed in the western United States, covering the entire crest of the Sierra...
Resource Type:: Dissertation
Full Text:: epiphytic lichen floras (Barkman, 1958; Schmidt et al., 2001). Consequently, bark pH is frequently

Relationship of extra-matrical hyphae of vesicular-arbuscular mycorrhizal fungi to plant growth response

Creator:: Kough, John Lawrence
Abstract:: The colonization of several species of plants by vesicularar-buscular mycorrhizae (VAM) was studied to determine how host, soil, or symbiont factors interacted to enhance growth of the host plant. Seedlings of two species of the Cuppressaceae and two of the Taxodiaceae formed VAM; colonization significantly improved growth. This response to...
Resource Type:: Dissertation
Full Text:: Photomicrographs of fluorescein-labeled VAM fungi viewed 93 with u.v. illumination except (c), (e) and (g) which

Epidemic Dynamics of Sudden Oak Death in the Forests of Oregon

Creator:: Carson, Adam
Abstract:: Sudden Oak Death (SOD) is a forest disease caused by the oomycete pathogen Phytophthora ramorum, and infects trees in the Western United States and Europe. This generalist pathogen can infect over 130 species of plants, and causes rapid mortality in tree species in the Fagaceae. Sexual reproduction is thought to...
Resource Type:: Masters Thesis
Full Text:: -ramorum-quarantine-and-regulations 11 Dale, A. L., Feau, N., Everhart, S. E., Dhillon, B., Wong

Ca. Nitrososphaera and Bradyrhizobium are inversely correlated and related to agricultural practices in long-term field experiments

Creator:: Zhalnina, Kateryna, de Quadros, Patricia D., Gano, Kelsey A., Davis-Richardson, Austin, Fagen, Jennie R., Brown, Christopher T., Giongo, Adriana, Drew, Jennifer C., Sayavedra-Soto, Luis A., Arp, Daniel J., Camargo, Flavio A. O., Daroub, Samira H., Clark, Ian M., McGrath, Steve P., Hirsch, Penny R., and Triplett, Eric W.
Abstract:: Agricultural land management, such as fertilization, liming, and tillage affects soil properties, including pH, organic matter content, nitrification rates, and the microbial community. Three different study sites were used to identify microorganisms that correlate with agricultural land use and to determine which factors regulate the relative abundance of the microbial...
Resource Type:: Article
Full Text:: Sciences, University of Florida, 1355 Museum Road, Gainesville, FL 32611-0700, USA. e-mail: ewt@ufl.edu

Biology of sweet cherry powdery mildew

Creator:: Calabro, Jill M.
Abstract:: The Pacific Northwest has become one of the nation’s premier sweet cherry, Prunus avium, production areas. As production of sweet cherries has flourished in Oregon and Washington, so has powdery mildew, caused by the fungus Podosphaera clandestina, which infects both foliage and fruit causing severe economic damage to growers. Sweet...
Resource Type:: Dissertation
Full Text:: , grape powdery mildew, E. necator, can overwinter in buds in central California and Italy but

Gramene database in 2010: updates and extensions

Creator:: Youens-Clark, Ken, Buckler, Ed, Casstevens, Terry, Chen, Charles, DeClerck, Genevieve, Derwent, Paul, Dharmawardhana, Palitha, Jaiswal, Pankaj, Kersey, Paul, Karthikeyan, A. S., Lu, Jerry, McCouch, Susan R., Ren, Liya, Spooner, William, Stein, Joshua C., Thomason, Jim, Wei, Sharon, and Ware, Doreen
Abstract:: Now in its 10th year, the Gramene database (http://www.gramene.org) has grown from its primary focus on rice, the first fully-sequenced grass genome, to become a resource for major model and crop plants including Arabidopsis, Brachypodium, maize, sorghum, poplar and grape in addition to several species of rice. Gramene began with...
Resource Type:: Article
Full Text:: database in 2010: updates and extensions Youens-Clark, K., Buckler, E., Casstevens, T., Chen, C., DeClerck

Comparative epidemiology of Phytophthora diseases of Rhododendron

Creator:: Taylor, Clare Rebecca
Abstract:: Rhododendron species are host to many Phytophthora species and are an important crop in the nursery industry. The foliar epidemiology of twelve Phytophthora diseases on Rhododendron was studied in field and growth chamber experiments on two Rhododendron cultivars. The relative aggressiveness of Phytophthora spp. was assessed using disease incidence, severity,...
Resource Type:: Masters Thesis
Full Text:: 3. A, B, Infection rate at 18°C (% of leaves infected), C, D, lesion area (%), and E, F

Acyl-ACP thioesterases and beta-ketoacyl-ACP synthase regulate fatty acid chain length in seed oils of Cuphea wrightii

Creator:: Leonard, Jeffrey M.
Resource Type:: Dissertation
Full Text:: Chair of Department of Botatfy and Plant Pathology Dean of Grad e School I understand that my thesis

Permineralized Mesozoic Moss Gametophytes and their Implications for Bryophyte Evolution

Creator:: Bippus, Alexander C.
Abstract:: Mosses (Phylum Bryophyta) are widely considered to be among the most ancient groups of land plants (embryophytes) and they are the second most speciose embryophyte phylum with ~13,000 extant species. Despite their diversity and antiquity, mosses have a limited fossil record, which primarily consists of gametophytes entombed in Cenozoic amber....
Resource Type:: Dissertation
Full Text:: Ph.D. CONTRIBUTION OF AUTHORS Chapter 2: Drs. Ignacio E. Escapa and Juan Garcia-Massini

Physiologic specialization of stripe rust (Puccinia striiformis West.) in the Pacific Northwest

Creator:: Beaver, Richard Gary, 1939-
Abstract:: The physiologic specialization of nine isolates of stripe rust (Puccinia striiformis West.) collected in the Pacific Northwest was determined. The separation of races was based on the differential susceptibility of the following wheat varieties: Cappelle Desprez, Chinese 166, Dippes Triumph, Druchamp, Etoile de Choisy, Flamingo, Gaines, Golden, Ibis, Leda, Michigan...
Resource Type:: Masters Thesis
Full Text:: , Oregon, Idaho, Montana and California. The Stripe Rust Fungus Schmidt first described the uredial stage

Search Constraints

Search Results

Limit your search