• Login
    View Item 
    •   Home
    • University of Alaska Fairbanks
    • UAF Graduate School
    • Older Theses Not Clearly Affiliated with a Current College
    • View Item
    •   Home
    • University of Alaska Fairbanks
    • UAF Graduate School
    • Older Theses Not Clearly Affiliated with a Current College
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of Scholarworks@UACommunitiesPublication DateAuthorsTitlesSubjectsTypeThis CollectionPublication DateAuthorsTitlesSubjectsType

    My Account

    Login

    First Time Submitters, Register Here

    Register

    Statistics

    Display statistics

    Amino and amide nitrogen content of the potato, Solanum tuberosum, and its relation to a shoot inhibition phenomenon

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Thumbnail
    Name:
    McCown.Deborah.1973.pdf
    Size:
    3.444Mb
    Format:
    PDF
    Download
    Author
    McCown, Deborah Donoghue
    Metadata
    Show full item record
    URI
    http://hdl.handle.net/11122/5255
    Abstract
    Solarium tuberosum L. plants grown in non-nutritive media exhibit a shoot inhibition in light which follows normal tuber dormancy. Shoot inhibition is expressed as retardation of leaf development. Physiological age, injury, and nitrate fertilization appeared to be factors in overcoming the inhibition. Studies included comparison of inhibited and non-inhibited shoots fertilized with nitrate and ammonium N sources and analysis of amino-N and amide-N concentrations. Nitrate fertilization produced normal plants. Ammonium fertilized plants remained inhibited, although it was apparent that ammonium was absorbed. Estimates of concentrations of amino-N and amide-N indicated that while nitrate fertilization produced morphologically normal plants, plant nitrogen reserves were not being metabolized. High amino-N and amide-N levels were found in storage tissues of ammonium fertilized plants indicating that absorbed ammonium was being assimilated into organic compounds, but not utilized for immediate growth. Visible ninhydrin absorption spectra of alcoholic extracts were analyzed. Each tissue showed a distinct complement of amino acids and amides and the composition was relatively unaffected by external nitrogen sources. Glutamine may play a significant role in amino-N and amide-N storage in inhibited shoots. Possible mechanisms involved in limiting amino-N and amide-N are discussed.
    Description
    Thesis (M.S.) University of Alaska Fairbanks, 1973
    Date
    1973-05
    Type
    Thesis
    Collections
    Older Theses Not Clearly Affiliated with a Current College
    Theses (Unassigned)

    entitlement

     
    ABOUT US|HELP|BROWSE|ADVANCED SEARCH

    The University of Alaska Fairbanks is an affirmative action/equal opportunity employer and educational institution and is a part of the University of Alaska system.

    ©UAF 2013 - 2023 | Questions? ua-scholarworks@alaska.edu | Last modified: September 25, 2019

    Open Repository is a service operated by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.