Search Constraints

Start Over
Filtering by: Creator Ganskopp, David C. (David Conrad) Remove constraint Creator: Ganskopp, David C. (David Conrad) Advisor Myrold, David D. Remove constraint Advisor: Myrold, David D. Resource Type Masters Thesis Remove constraint Resource Type: Masters Thesis

Search Results

  • The genetic diversity of Ceanothus-infective Frankia

    Creator:
    Ritchie, Nancy J.
    Abstract:
    Frankia from root nodules of nine different species of Ceanothus were characterized. DNA was amplified directly from nodular material using the polymerase chain reaction (PCR). The amplified region includes the 3' end of the 16S rRNA gene, the intergenic spacer (IGS), and a large portion of the 23S rRNA gene....
    Resource Type:
    Masters Thesis
    Full Text:
    of Ceanothus (Conrad, 1985). Included in this subgenus are the evergreen species C. cuneatus, C

  • Variation in communities of ammonia-oxidizing and denitrifying bacteria in Fennoscandian boreal forest soils

    Creator:
    Ghimire, Rama D.
    Abstract:
    The objective of this study was to examine the variation among ammonia-oxidizing and denitrifying communities in soils of a natural Fennoscandian boreal forest and of a forest with a long history of fertilization with different levels of nitrogen (N), and to examine whether there are any changes in the microbial...
    Resource Type:
    Masters Thesis
    Full Text:
    . Abstract approved: David D. Myrold The objective of this study was to examine the

  • Ammonia-oxidizer and denitrifier populations in boreal forest soils of differing nitrogen availability

    Creator:
    Burton, Marci S.
    Abstract:
    Nitrification and denitrification are major biological processes transforming nitrogen (N) in soils to plant available N, highly leachable nitrate (NO₃⁻) and gaseous N oxides. Although many studies in the past have studied N cycling communities, the effect of increased N inputs on ammonia-oxidizer and denitrifier population dynamics is still under...
    Resource Type:
    Masters Thesis
    Full Text:
    Abstract approved: David D. Myrold Nitrification and denitrification are major biological

  • Contributions of ammonia-oxidizing bacteria and archaea to nitrification in forest soils

    Creator:
    Lu, Xinda
    Abstract:
    Prior to 2005, ammonia oxidation, the first step of nitrification, was thought mediated mainly by ammonia-oxidizing bacteria (AOB). However, the discovery of Thaumarchaeota carrying the genes coding for the ammonia monooxygenase (AMO) enzyme led to the discovery that ammonia-oxidizing archaea (AOA) also contribute to nitrification. Despite the uptick in studies...
    Resource Type:
    Masters Thesis
    Full Text:
    : _____________________________________________________________________ David D. Myrold Prior to 2005, ammonia oxidation, the first step of nitrification, was