Index Catalog // ScholarsArchive@OSU

Bacterio-opsin gene overexpression fails to elevate fungal disease resistance in transgenic poplar (Populus)

Creator:: Mohamed, Rozi, Meilan, Richard, Ostry, Michael E., Michler, Charles H., and Strauss, Steven H.
Abstract:: Overexpression of the bacterio-opsin (bO) gene in tobacco had previously been shown to induce hypersensitiveresponse- like lesions, increase viral and bacterial disease resistance, and stimulate pathogenesis-related gene expression. To see if this gene enhanced resistance to fungal pathogens of poplar, we generated a total of 35 transgenic lines in two...
Resource Type:: Article
Full Text:: enhanced resistance to fungal pathogens of poplar, we generated a total of 35 transgenic lines in two

Pathogenicity to Douglas-fir of Ophiostoma pseudotsugae and Leptographium abietinum, fungi associated with the Douglas-fir beetle

Creator:: Ross, Darrell W. and Solheim, Halvor
Abstract:: Pole-size Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) were inoculated with two fungi (Ophiostoma pseudotsugae (Rumb.) von Arx and Leptographium abietinum (Peck) Wingf.) associated with the Douglas-fir beetle (Dendroctonus pseudotsugae Hopkins) to evaluate their pathogenicity. Pruning the lowermost 30% of the live crown had no effect on host tree defenses. Inoculation with...
Resource Type:: Article
Full Text:: (Ophiostoma pseudotsugae (Rumb.) von Arx and Leptographium abietinum (Peck) Wingf.) associated with the

Structure and yield of two-aged stands on the Willamette National Forest, Oregon: implications for green tree retention

Creator:: Acker, Steven A., Zenner, E. K., and Emmingham, W. H.
Abstract:: Green tree retention, a practice based on ecosystem science, has been integrated into forest management as a working hypothesis, requiring research and monitoring to quantify its effects. We undertook a retrospective study of natural, two-aged forest stands on the Willamette National Forest to provide preliminary estimates of the effects of...
Resource Type:: Article
Full Text:: Abstract: Green tree retention, a practice based on ecosystem science, has been integrated into forest

Distribution of epiphytic macrolichens in relation to remnant trees in a multiple-age Douglas-fir forest

Creator:: Sillett, Stephen C. and Goslin, Matthew N.
Abstract:: Alternatives to clear-cutting are being implemented to increase biodiversity of managed forests in the Pacific Northwest. Lichens are an integral component of old growth, but lichen biomass develops slowly in forests. We evaluated the long-term potential of live tree retention for lichen conservation in Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) forests....
Resource Type:: Article
Full Text:: . Northwest Sci.70(Spec. Issue): 54–60. Sillett, S.C., McCune, B., Peck, J.E., Rambo, T.R., and Ruchty, A

Investigation of limestone ecotypes of white spruce based on a provenance test series

Creator:: Lesser, Mark R., Cherry, Marilyn, and Parker, William H.
Abstract:: Previous laboratory and field studies have presented evidence for the existence of limestone ecotypes in white spruce (Picea glauca (Moench) Voss). Remeasurements of the range-wide 410 series of provenance trials were used for further evaluation of the existence of these ecotypes. In 2001, heights were measured of 23 provenances grown...
Resource Type:: Article
Full Text:: Investigation of limestone ecotypes of white spruce based on a

Landscape characteristics and coho salmon (Oncorhynchus kisutch) distributions: explaining abundance versus occupancy

Creator:: Steel, E. A., Jensen, D. W., Burnett, K. M., Christiansen, K., Firman, J. C., Feist, B. E., Anlauf, K. J., and Larsen, D. P.
Abstract:: Distribution of fishes, both occupancy and abundance, is often correlated with landscape-scale characteristics (e.g., geology, climate, and human disturbance). Understanding these relationships is essential for effective conservation of depressed populations. We used landscape characteristics to explain the distribution of coho salmon (Oncorhynchus kisutch) in the Oregon Plan data set, one...
Resource Type:: Article
Full Text:: qu’en abondance, est souvent corrélée à des caractéristiques à l’é- chelle du paysage, telles que la

Supercritical carbon dioxide treatment: Effect on permeability of Douglas-fir heartwood

Creator:: Demessie, Endalkachew Sahle, Hassan, Ali, Levien, Keith L., Kumar, Satish, and Morrell, Jeffrey J.
Abstract:: The effect of supercritical fluid treatment on superficial gas permeability of Douglas-fir was investigated by using carbon dioxide either alone or amended with methanol. Permeability increased in a majority of samples, although nearly one-third of the specimens declined in permeability. Improvements in permeability appeared to be unrelated to variations in...
Resource Type:: Article
Full Text:: . FROMEKT, H. A. 1981. U. S. Patent43088200. Dec. 28, 1981. JOHNSTON, K. P., D. G. PECK, AND S. KIM. 1989

Assessing Fungal Decay of Wood by Small-scale Toughness Tests

Creator:: Sexton, Camille M., Corden, Malcolm E., and Morrell, Jeffrey J.
Abstract:: Impact bending and breaking radius were used to measure loss in toughness caused by basidiomycetes isolated from wood. Small test pieces were used to accelerate testing. Wide differences were found among, and sometimes within, the 26 species tested. Brown-rot fungi tended to cause greater losses than white-rot fungi, but no...
Resource Type:: Article
Full Text:: - roflammula puberula (Peck) Singer (Table 1) to 7.2 cm for Antrodia xantha monokaryon (Table 2), a 0 to 25 1

Do network relationships matter? Comparing network and instream habitat variables to explain densities of juvenile coho salmon (Oncorhynchus kisutch) in mid-coastal Oregon, USA

Creator:: Flitcroft, Rebecca L., Burnett, Kelly M., Reeves, Gordon H., and Ganio, Lisa M.
Abstract:: 1. Aquatic ecologists are working to develop theory and techniques for analysis of dynamic stream processes and communities of organisms. Such work is critical for the development of conservation plans that are relevant at the scale of entire ecosystems. The stream network is the foundation upon which stream systems are...
Resource Type:: Article
Full Text:: , nutrients, and physical materials such as wood and substrate. Analysing streams as networks offers a

Systematics of the Gomphales: the genus Gomphus sensu stricto

Creator:: Giachini, Admir J., Camelini, Carla M., Rossi, Marcio J., Soares, Claudio R. F. S., and Trappe, James M.
Abstract:: Gomphus sensu lato (Gomphales) was described to include species of cantharelloid-gomphoid fungi that had 'merulioid' (wrinkled) hymenia and verrucose spores. Gomphus sensu stricto is currently characterized by unipileate to merismatoid (composed of several pilei) basidiomata, depressed funnel- to fan-shaped pilei, presence of clamp connections, and verrucose spores; it has three...
Resource Type:: Article
Full Text:: genus Gomphus was originally proposed as a segregate from the genera Clavaria, Geoglossum, Mitrula

ScholarsArchive@OSU

Bacterio-opsin gene overexpression fails to elevate fungal disease resistance in transgenic poplar (Populus)

Pathogenicity to Douglas-fir of Ophiostoma pseudotsugae and Leptographium abietinum, fungi associated with the Douglas-fir beetle

Structure and yield of two-aged stands on the Willamette National Forest, Oregon: implications for green tree retention

Distribution of epiphytic macrolichens in relation to remnant trees in a multiple-age Douglas-fir forest

Investigation of limestone ecotypes of white spruce based on a provenance test series

Landscape characteristics and coho salmon (Oncorhynchus kisutch) distributions: explaining abundance versus occupancy

Supercritical carbon dioxide treatment: Effect on permeability of Douglas-fir heartwood

Assessing Fungal Decay of Wood by Small-scale Toughness Tests

Do network relationships matter? Comparing network and instream habitat variables to explain densities of juvenile coho salmon (Oncorhynchus kisutch) in mid-coastal Oregon, USA

Systematics of the Gomphales: the genus Gomphus sensu stricto

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