rdf-syntax-grammar
mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    title: Changes in growth, invertase, and carbohydrates in salt stressed Cucumis sativus
  name:
    name part: Hurley, Anne Katherine
    name part: 1959-
    role:
      role term: creator
  name:
    name part: Cobb, B. Greg
    role:
      role term: degree supervisor.
  name:
    name part: Dahmer, Mark
    role:
      role term: degree committee member.
  name:
    name part: Drew, Malcolm C.
    role:
      role term: degree committee member.
  name:
    name part: Pike, Leonard M.
    role:
      role term: degree committee member.
  name:
    name part: Texas A & M University
    role:
      role term: degree granting institution.
  type of resource: text
  genre: bibliography
  genre: Academic theses
  origin info:
    place:
      place term: xx
    date issued: 1991
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: print
    extent: xi, 88 leaves : illustrations ; 29 cm
  abstract: Cucurbits are moderately sensitive to salinity stress. Experiments were done to examine the physiological effects of NaCl on the growth and development of cucumber leaves and roots. Sodium chloride shock caused an inhibition of growth for the first 24 to 48 hours after initial treatment The response to stress varied with the salt concentration and the age of the leaf at the time of treatment. Leaf expansion and leaf emergence decreased with increasing NaCl in the solution media. The plastochron index was delayed at 80 mM salt, but was relatively unchanged in the 40 mM salt treatment This may indicate a change in the developmental physiology of the plant at higher salt levels. Root osmotic potential decreased within thirty minutes after salt shock and remained lower than the control for at least 24 hours. The plants wilted and regained turgor within the first six hours. Root invertase activity increased after six hours in 80 mM NaCl and remained higher than the control for at least seven days. Because the invertase did not increase until six hours after salt shock, it may not be involved in the initial recovery of turgor. However, it may play a role in long term osmotic adjustment. The transport sugars sucrose, raffinose, and stachyose decreased on days 1, 3, and 5 after NaCl shock. Myo-inositol, galactose, glucose, and fructose increased on day 3 then dropped to levels similar to the controls. Melibiose increased over time, perhaps as an indication of root injury or senescence. Reducing sugars may play a role in osmotic adjustment at salt levels less than those used in this study. Elemental analysis showed that Na+ concentrations increased dramatically in the roots within 24 hours while the Ca[^2+], Mg[^2+], and K+ concentrations decreased...
  note: Typescript (photocopy).
  note: Vita.
  note: "Major subject: Horticulture."
  note: Ph. D. Texas A & M University 1991
  note: Includes bibliographical references.
  subject:
    topic: Cucumbers
    topic: Effect of salinity on
  subject:
    topic: Cucumbers
    topic: Growth
  subject:
    topic: Invertase
  subject:
    topic: Major horticulture
  identifier: http://proxy.library.tamu.edu/login
  related item:
    location:
      url: http://proxy.library.tamu.edu/login
  record info:
    record content source: TXA
    record creation date: 921123
    record change date: 20200904152551.0
    record identifier: in00001107447
    language of cataloging:
      language term: eng