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The development and decline dynamics of two ectomycorrhizal fungal mat soil microbial communities in response to a reciprocal soil transfer experiment in old-growth Douglas-fir forests

Creator:: Cappellazzi, Jed E.
Abstract:: Ectomycorrhizal fungi (EmF) form symbioses with trees. These symbioses profoundly influence forest ecology. Certain EmF form specialized profusions of hyphae, known as ectomycorrhizal fungal mats (mats) which are visible to the naked eye, alter forest soil biogeochemistry, substantially contribute to soil microbial biomass/respiration and support unique microbial communities. Piloderma and...
Resource Type:: Masters Thesis
Full Text:: Ectomycorrhizal Fungal Mat Soil Microbial Communities in Response to a Reciprocal Soil Transfer Experiment in Old

Inoculation potential of soil-borne Frankia on red alder (Alnus rubra Bong.)

Creator:: Martin, Kendall J.
Abstract:: Inoculation trials were set up in fumigated nursery beds for red alder (Alnus rubra Bong.) seedling production. Frankia inoculum was applied in eight treatments: control, nodule suspension, and three levels of cell suspension (strain ArI5) applied with and without a peat carrier. Seedlings were evaluated at midseason and lifting. The...
Resource Type:: Dissertation
Full Text:: 9543 of the Oregon Agricultural Experiment Station. Financial support for this research was provided

Carbon cycling and priming of soil organic matter decomposition in a forest soil following glucose additions

Creator:: Diaz, David D.
Abstract:: Soils are a globally significant carbon (C) pool and have the potential to respond to elevated CO2 and environmental changes through positive feedback cycles that enhance the turnover of soil organic matter (SOM). Understanding the mechanisms governing the turnover of SOM is particularly important for modeling the fate of C...
Resource Type:: Masters Thesis
Full Text:: course of a 22-day experiment. The forest soils considered in this study have undergone ten years of

Litter controls of microbial community composition and function in forest soils

Creator:: Brant, Justin B.
Abstract:: Most carbon (C) transformations in soil are carried out by a diverse and complex soil microbial community. The size and composition of the soil microbial community is determined by poorly understood interactions between the quantity and chemical composition of plant inputs, as well as climate. Given the metabolic diversity of...
Resource Type:: Masters Thesis
Full Text:: part of a larger detritus input and removal treatment experiment. In the first part of my study

Soil community dynamics in sagebrush and cheatgrass-invaded ecosystems of the northern Great Basin

Creator:: DeCrappeo, Nicole M.
Abstract:: Sagebrush steppe ecosystems in the Great Basin have become increasingly threatened by the proliferation of cheatgrass (Bromus tectorum L.), an invasive annual grass. Diverse sagebrush and perennial bunchgrass landscapes can be converted to homogenous cheatgrass grasslands mainly through the effects of fire. Although the consequences of this conversion are well...
Resource Type:: Dissertation
Full Text:: . Results from a 15N pool dilution experiment modified with the fungal protein synthesis inhibitor

Soil Health and the Response of the Soil Microbial Community to Disturbances across Western North America

Creator:: Kersey, Jordan H.
Abstract:: Temperate coniferous forests, such as those that cover vast areas of the western US and Canada, have evolved to depend on cycles of disturbance for succession of species and overall ecosystem maintenance. Many of these forest systems are managed, often for timber production, where disturbances are of anthropogenic origin and...
Resource Type:: Masters Thesis
Full Text:: disturbance. For this experiment, we took advantage of Long-term Site Productivity installations already in

Soil pH and calcium effects on nodulation of nursery grown red alder

Creator:: Crannell, Wanda K.
Resource Type:: Masters Thesis
Full Text:: distributed by O.S.U. Agricultural Experiment Station. Knowlton S., and Dawson J.O. (1983) Effects of

Response of soil microbial communities and nitrogen cycling processes to changes in vegetation inputs

Creator:: Brewer, Elizabeth Ann
Abstract:: Changes in the type and amount of plant inputs can occur gradually, as with succession, or rapidly, as with harvesting or wildfire. With global change it is anticipated that both gradual and immediate scenarios will occur at increasing frequency. Changes in vegetation inputs alter the quality and quantity of soil...
Resource Type:: Dissertation
Full Text:: environmental characteristics of the five woody clusters located at the Agricultural Experimental Station, La

Detection of the Burkholderia cepacia complex in soil environments

Creator:: Miller, Suzanne C. McKenzie
Abstract:: Burkholderia cepacia complex (Bcc) bacteria reside in soil, plant rhizospheres, and water, but the prevalence of Bcc in outdoor environments is not clear. In this study, we sampled a variety of soil and rhizosphere environments with which people may have contact: playgrounds, athletic fields, parks, hiking trails, residential yards and...
Resource Type:: Masters Thesis
Full Text:: of 123 experiment 1. Error bars represent the standard deviation of the mean. B.2 Mean log CFU

Nitrogen fixation and cycling in a mixture of young red alder and Douglas-fir

Creator:: Tang, James Y.
Resource Type:: Masters Thesis
Full Text:: . Results and Discussion 25 11-4-1. 1993 Experiment 25 11-4-2. 1994 Experiment 29 11-4-3. Estimation of

ScholarsArchive@OSU

The development and decline dynamics of two ectomycorrhizal fungal mat soil microbial communities in response to a reciprocal soil transfer experiment in old-growth Douglas-fir forests

Inoculation potential of soil-borne Frankia on red alder (Alnus rubra Bong.)

Carbon cycling and priming of soil organic matter decomposition in a forest soil following glucose additions

Litter controls of microbial community composition and function in forest soils

Soil community dynamics in sagebrush and cheatgrass-invaded ecosystems of the northern Great Basin

Soil Health and the Response of the Soil Microbial Community to Disturbances across Western North America

Soil pH and calcium effects on nodulation of nursery grown red alder

Response of soil microbial communities and nitrogen cycling processes to changes in vegetation inputs

Detection of the Burkholderia cepacia complex in soil environments

Nitrogen fixation and cycling in a mixture of young red alder and Douglas-fir

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