Index Catalog // ScholarsArchive@OSU

Recombineering and stable integration of the Pseudomonas syringae pv. syringae 61 hrp/hrc cluster into the genome of the soil bacterium Pseudomonas fluorescens Pf0-1

Creator:: Thomas, William J., Chang, Jeff, Thireault, Caitlin A., and Kimbrel, Jeffrey
Abstract:: Many Gram-negative bacteria use a type III secretion system (T3SS) to establish associations with their hosts. The T3SS is a conduit for direct injection of type-III effector proteins into host cells, where they manipulate the host for the benefit of the infecting bacterium. For plant-associated pathogens, the variations in number...
Resource Type:: Technical Report
Full Text:: : 10.1111/j.1365-313X.2009.03998.x Type-III effectors of phytopathogens are collectively nec- essary for

The effects of water velocity on the Ceratomyxa shasta infectious cycle

Creator:: Bjork, Sarah J. and Bartholomew, Jerri L.
Abstract:: Ceratomyxa shasta is a myxozoan parasite identified as a contributor to salmon mortality in the Klamath River, USA. The parasite has a complex life cycle involving a freshwater polychaete, Manayunkia speciosa and a salmonid. As part of ongoing research on how environmental parameters influence parasite establishment and replication, we designed...
Resource Type:: Article

Can carbon isotopes be used to predict watershed-scale transpiration?

Creator:: Pypker, T. G., Barnard, H. R., Hauck, M., Sulzman, E. W., Unsworth, Michael H., Mix, Alan C., Kennedy, A. M., and Bond, B. J.
Abstract:: The Penman‐Monteith equation is often used to estimate transpiration, but an important limitation to this approach, especially for mountainous forested sites, is an accurate estimate of canopy conductance averaged over the area of interest (Gs). We propose a method for estimating watershed‐scale transpiration using estimates of Gs derived from measurements...
Resource Type:: Article

Oceanic Protists

Creator:: Sherr, Barry F., Sherr, Evelyn, Caron, David A., Vaulot, Daniel, and Worden, Alexandra Z.
Abstract:: Protists are microscopic eukaryotic microbes that are ubiquitous, diverse, and major participants in oceanic food webs and in marine biogeochemical cycles. The study and characterization of protists has a long and distinguished tradition. Even with this history, the extraordinary species diversity and variety of interactions of protists in the sea...
Resource Type:: Article
Full Text:: transition? Environmental Microbiology 9(1):39–45, doi: 10.1111/j.1462-2920.2006.01109.x. Groisillier, A

A latitudinal cline in the Chinook salmon (Oncorhynchus tshawytscha) Clock gene: evidence for selection on PolyQ length variants

Creator:: O'Malley, Kathleen G. and Banks, Michael A.
Abstract:: A critical seasonal event for anadromous Chinook salmon (Oncorhynchus tshawytscha) is the time at which adults migrate from the ocean to breed in freshwater. We investigated whether allelic variation at the circadian rhythm genes, OtsClock1a and OtsClock1b, underlies genetic control of migration timing among 42 populations in North America. We...
Resource Type:: Article
Full Text:: latitudinal cline in allele frequencies. Mol. Ecol. 12, 4867–4880. (doi:10.1111/j.1365-294X.2007. 03552.x

Quantitative-genetic variation in morphological and physiological traits within a quaking aspen (Populus tremuloides) population

Creator:: Kanaga, Megan K., Ryel, Ronald J., Mock, Karen E., and Pfrender, Michael E.
Abstract:: Genetic diversity within populations is an important component of adaptive evolution, and recent research has demonstrated that genetic variation within plant populations can have important ecological effects. In this study, we investigate quantitative-genetic variation in several traits within a quaking aspen (Populus tremuloides Michx.) population. A common garden experiment was...
Resource Type:: Article
Full Text:: :10.1111/j.1469-8137.2005.01423.x. PMID:15948838. DeByle, N.V. 1985. Wildlife. In Aspen: ecology and

Seasonal hydrology explains interannual and seasonal variation in carbon and water exchange in a semiarid mature ponderosa pine forest in central Oregon

Creator:: Thomas, Christoph, Law, Beverly E., Irvine, James, Martin, Jonathan, Pettijohn, J. Cory, and Davis, Kent J.
Abstract:: We analyzed 7 years (2002–2008) of micrometeorological and concurrent biological observations of carbon and water fluxes at a mature ponderosa pine forest in central Oregon in a semiarid climate. We sought to evaluate the extent that gross primary productivity, net ecosystem exchange, ecosystem respiration, net primary productivity, net ecosystem productivity,...
Resource Type:: Article

Electrical resistivity imaging of the architecture of substream sediments

Creator:: Crook, N., Binley, A., Knight, R., Robinson, D. A., Zarnetske, J., and Haggerty, R.
Abstract:: The modeling of fluvial systems is constrained by a lack of spatial information about the continuity and structure of streambed sediments. There are few methods for noninvasive characterization of streambeds. Invasive methods using wells and cores fail to provide detailed spatial information on the prevailing architecture and its continuity. Geophysical...
Resource Type:: Article
Full Text:: using electrical resistivity, Ground Water, 42(7), 1052–1068, doi:10.1111/j.1745-6584.2004.tb02643.x

On the estimation and application of spatial and temporal autocorrelation in headwater streams

Creator:: Som, Nicholas A.
Abstract:: This collection of three manuscripts serves to improve methods for collecting, interpreting, and utilizing autocorrelated data from headwater stream networks. Each stream network is comprised of linear segments. These segments lie within a unique branching structure that connects the segments via flowing water, and the connectivity provided by water varies...
Resource Type:: Dissertation

2002 Fall OSU Corvallis Campus schedule of classes

Creator:: Oregon State University
Resource Type:: Other

ScholarsArchive@OSU

Recombineering and stable integration of the Pseudomonas syringae pv. syringae 61 hrp/hrc cluster into the genome of the soil bacterium Pseudomonas fluorescens Pf0-1

The effects of water velocity on the Ceratomyxa shasta infectious cycle

Can carbon isotopes be used to predict watershed-scale transpiration?

Oceanic Protists

A latitudinal cline in the Chinook salmon (Oncorhynchus tshawytscha) Clock gene: evidence for selection on PolyQ length variants

Quantitative-genetic variation in morphological and physiological traits within a quaking aspen (Populus tremuloides) population

Seasonal hydrology explains interannual and seasonal variation in carbon and water exchange in a semiarid mature ponderosa pine forest in central Oregon

Electrical resistivity imaging of the architecture of substream sediments

On the estimation and application of spatial and temporal autocorrelation in headwater streams

2002 Fall OSU Corvallis Campus schedule of classes

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