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Filtering by: Alternative title ssim SG 69 Remove constraint Alternative title ssim: SG 69 Committee Member Arp, Daniel J. Remove constraint Committee Member: Arp, Daniel J. Decade 1990-1999 Remove constraint Decade: 1990-1999

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  • Nitrogen partitioning and remobilization in field-grown apple trees

    Creator:
    Khemira, Habib
    Abstract:
    Uptake and cycling of nitrogen (N) in mature trees are not well understood. Fertilizer-N uptake, partitioning, and use-efficiency were studied in standard strain 'Topred Delicious' and spur strain 'Redspur Delicious' mature apple trees {Malus domestica Borck) on 'Malling 7A' (M.7A) rootstocks. The treatments consisted of a ground application in spring,...
    Resource Type:
    Dissertation
    Full Text:
    Discussion 69 5. Literature Cited 75 TABLE OF CONTENTS (Continued) Page CHAPTER 6

  • Cometabolic degradation of polycyclic aromatic hydrocarbons (PAHs) and aromatic ethers by phenol- and ammonia-oxidizing bacteria

    Creator:
    Chang, Soon Woong
    Abstract:
    Cometabolic biodegradation processes are potentially useful for the bioremediation of hazardous waste sites. In this study the potential application of phenol-oxidizing and nitrifying bacteria as "priming biocatalysts" was examined in the degradation of polycyclic aromatic hydrocarbons (PAHs), aryl ethers, and aromatic ethers. We observed that a phenol-oxidizing Pseudomonas strain cometabolically...
    Resource Type:
    Dissertation

  • Evolution and ecology of the Ceanothus-Frankia symbiosis

    Creator:
    Jeong, Soon-Chun
    Abstract:
    The evolutionary relationship between Frankia and actinorhizal plants was evaluated by reconstructing molecular phylogenetic trees from nifH, 16S rDNA, and rbcL nucleotide sequences. Subgroupings in Frankia phylogenetic trees reconstructed from nifH and from 16S rDNA sequences were consistent in terms of plant origins of Frankia strains. Although the branching order...
    Resource Type:
    Dissertation
    Full Text:
    Ceanothus species 56 4.1 Sources of bacterial strains, plants, or IGS DNA sequences used in this study 69