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: Carbon isotope fractionation by marine phytoplankton
  name:
    name part: Wong, William Wai-Lun.
    role:
      role term: creator
  name:
    name part: Benedict, C. R.
    role:
      role term: degree committee member.
  name:
    name part: Cox, E. R.
    role:
      role term: degree committee member.
  name:
    name part: El-Sayed, S. Z.
    role:
      role term: degree committee member.
  name:
    name part: Jeffrey, L. M.
    role:
      role term: degree committee member.
  name:
    name part: Sackett, W. M.
    role:
      role term: degree supervisor.
  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: txu
    date issued: 1976
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: print
    extent: x, 116 leaves : illustrations, charts, forms ; 28 cm
  abstract: Stable carbon isotope fractionations by seventeen species of marine phytoplankton, representing the classes of Bacillariophyceae, Chlorophyceae, Prasinophyceae, Chrysophyceae, Haptophyceae and Dinophyceae, have been determined in laboratory culture experiments using bicarbonate enriched artificial sea water. The Δ¹³C values (Δ¹³C = δ¹³C of plant HCO₃) range from -22.1 0/00 to -35.5 °/oo Nitzschia closterium shows the smallest fractionation of -22.1 °/oo and Isochrysis galbana, the greatest of -35.5 °/oo. Within the Bacillariophyceae, the Δ¹³C values vary from -22.1 °/oo (Nitzschia closterium) to -29.9 °/oo (Skeletonema costatum). With the exception of Cyclotella sp., the centric diatoms seem to fractionate more than the pennate diatoms. Haptophyceae and Chrysophyceae are always more depleted in ¹³C than other marine microalgae. For Prasinophyceae, Chlorophyceae and Dinophyceae, Δ¹³C values of -28.9 °/oo (Platymonas sp.), -31.9 °/oo (Dunaliella sp.), -29.1 °/oo (Chlorococcum sp.) and -27.2 °/oo (Glenodinium foliaceum) have been measured. Since these algae were cultured under identical laboratory conditions, the wide range of Δ¹³C values are indicative that fractionating processes other than RuDP and/or PEP carboxylases are operable in these organisms. Differential accumulation of photosynthetic products by marine algae has been suggested to be a possible explanation for the variation of Δ¹³C in these organisms..
  note: by William Wai-Lun Wong.
  note: "Major subject: Oceanography."
  note: Vita.
  note: Texas A & M University
  note: Includes bibliographical references (leaves 65-68).
  subject:
    topic: Carbon
    topic: Isotopes
  subject:
    topic: Isotope separation
  subject:
    topic: Marine phytoplankton
  subject:
    topic: Oceanography
  subject:
    topic: Carbon
    topic: Isotopes
  subject:
    topic: Isotope separation
  subject:
    topic: Marine phytoplankton
  classification: QD466.5 .W657
  identifier: http://proxy.library.tamu.edu/login
  identifier: https://hdl.handle.net/1969.1/DISSERTATIONS-474986
  related item:
    location:
      url: http://proxy.library.tamu.edu/login
  related item:
    location:
      url: https://hdl.handle.net/1969.1/DISSERTATIONS-474986
  record info:
    record content source: TXA
    record creation date: 770604
    record change date: 20220103135100.0
    record identifier: in00000473213
    language of cataloging:
      language term: eng