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: Lipid biogeochemistry of Gulf of Mexico hydrocarbon seep communities
  name:
    name part: Fang, Jiasong
    name part: 1961-
    role:
      role term: creator
  name:
    name part: Brooks, James M.
    role:
      role term: degree supervisor.
  name:
    name part: Cifuentes, Luis A.
    role:
      role term: degree committee member.
  name:
    name part: Comet, Paul A.
    role:
      role term: degree committee member.
  name:
    name part: Grossman, Ethan L.
    role:
      role term: degree committee member.
  name:
    name part: Russell, David H.
    role:
      role term: degree committee member.
  name:
    name part: Santschi, Peter H.
    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: 1993
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: print
    extent: xv, 179 leaves : illustrations ; 28 cm
  abstract: Despite the fact that symbiotic processes between seep invertebrates and symbiotic bacteria are well documented by enzymatic and electron microscopic studies, little is known of the biochemical interactions between the host animals and their endosymbionts. This study couples detailed molecular analyses with com pound-specific isotope analyses (CSLA) to characterize biomarker distribution of seep organisms and thereby illustrate the symbiotic processes between seep invertebrates and associated bacteria. The composition of fatty acids, sterols and hopenes of hydrocarbon seep mytilids and vestimentiferan tube worms from the northern Gulf of Mexico was investigated. FATTY ACIDS: (1) Forty-four different C12-C24 fatty acids were found in the mussel-bacteria association. C16 saturated and monounsaturated fatty acids accounted for 50% of the total fatty acids. (2) Fatty acids were dominated by unsaturated fatty acids with high degree of unsaturation (up to five double bonds) and a variety of positional isomers. STEROLS AND HOPENES: (1) The total sterols were found to be from 1.95x10^3 to 5.35x10^3 μg/g. Individual sterols include lanosterol. 14-desmethyl lanosterol, 4a-methylzymosterol, lophenol, 4α-methyl-cholest-8-en-ol. 7- dehydrocholesterol, lathosterol, cholesterol, and cholestanol. (2) Hop-21-ene and hop-22(29)-ene (140 to 150|μg/g), and trace amount of squalene were found in the mussel-bacteria association. δ13C OF FATTY ACIDS: (1) The individual fatty acids of the mytilid mussels have δ13C values from -49.0 to -56.9[parts per thousand]. The fatty acids of the vestimentiferan tube worms are relatively enriched in 13C, ranging from -31.6%o to - 38.6[parts per thousand]. (2) The Δ values (δ13C[fatty acids] - δ13C[tissue], weighted average) are from -1.2[parts per thousand] and -4.8[parts per thousand] mytilids, and +3.9[parts per thousand] (tube worms). The predominance of C16 saturated and monounsaturated fatty acids, the presence of abundant 4-methyl sterol and hope…
  note: Vita.
  note: "Major subject: Oceanography."
  note: Includes bibliographical references.
  note: Ph. D. Texas A & M University 1993
  subject:
    geographic code: nm-----
  subject:
    topic: Organic geochemistry
    geographic: Mexico, Gulf of
  subject:
    topic: Marine sediments
    geographic: Mexico, Gulf of
  subject:
    topic: Lipids
  subject:
    topic: Petroleum
    topic: Prospecting
    geographic: Mexico, Gulf of
  subject:
    topic: Major oceanography
  subject:
    topic: Marine sediments
  subject:
    topic: Organic geochemistry
  subject:
    topic: Petroleum
    topic: Prospecting
  subject:
    geographic: Gulf of Mexico
  identifier: http://gateway.proquest.com/openurl
  identifier: http://proxy.library.tamu.edu/login
  related item:
    location:
      url: http://proxy.library.tamu.edu/login
  related item:
    location:
      url: http://gateway.proquest.com/openurl
  record info:
    record content source: TXA
    record creation date: 950522
    record change date: 20200904152658.0
    record identifier: in00001233251
    language of cataloging:
      language term: eng