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Filtering by: Subject Soil microbiology -- Oregon

Measurement of microbial biomass phosphorus in Oregon soils

Creator:

Claycomb, Peter T.

Resource Type:

Masters Thesis
Characteristics of bradyrhizobium sp. recovered from Oregon soils

Creator:

Cheng, Hsin-hua

Abstract:

Although the biology of Bradyrhizobium has been studied for almost one hundred years, virtually nothing is known about the ecology and genetic variation in natural soil populations of this genus. The majority of information has been obtained from studies of one species, Bradyrhizobium japonicum, and the diversity within soil populations...

Resource Type:

Masters Thesis
Growth characteristics of 2,4-dichlorophenoxyacetic acid degrading bacteria recovered from an Oregon soil

Creator:

Phillips, David C.

Resource Type:

Masters Thesis
Occurrence of ectomycorrhizae on ericaceous and coniferous seedlings grown in soils from the Oregon Coast Range

Creator:

Smith, Jane E. (Jane Elizabeth)

Abstract:

Seedlings of Gaultheria shallon, Pseudotsuga menziesii, Rhododendron macrophyllum and Tsuga heterophylla were grown together in the greenhouse in soils from three young managed Douglas-fir forests in the Oregon Coast Range. The main objectives were 1 )to evaluate the ability of ericaceous plants and overstory conifers to share compatible mycorrhizal fungi...

Resource Type:

Masters Thesis
The link between nitrogen cycling and soil microbial community composition in forest soils of western Oregon

Creator:

Boyle, Stephanie A.

Abstract:

The objectives of this thesis were to examine the links between soil microbial community composition and function using the nitrogen (N) cycle as a model for these interactions and to assess the impact of environmental factors such as microclimate, vegetation type, and nutrient availability on microbial diversity and N transformations...

Resource Type:

Dissertation