Nom du corpus

Corpus Systématique Animale

Titre du document

Biosynthesis of wax esters in oceanic crustaceans

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Nom du fichier dans la ressource
Arthropodes_v2b_00574
Auteur(s)
  • J. R. Sargent 1
  • R. J. Morris 2
  • R. McIntosh 1
Affiliation(s)
  • 1) Institute of Marine Biochemistry, Natural Environment Research Council, Aberdeen, Scotland
  • 2) Institute of Oceanographic Sciences, Natural Environment Research Council, Godalming, Surrey, England
Résumé

Slices from the hepatopancreas of various oceanic curstaceans incorporated radioactivity into wax esters from 14C glucose and 14C aspartic acid to a lesser extent and from 14C palmitic acid to a much greater extent. Radioactivity was incorporated from 14C palmitic acid into both fatty acid and fatty alcohol moieties of wax esters, the percentage of total radioactivity present in alcohol moieties being greater in deep-living than in shallow-living species. Cell-free preparations from the hepatopancreas but not from muscle, supplemented with ATP and reduced pyridine nucleotides, incorporated radioactivity from 1-14C palmitoyl Coenzyme A into both fatty alcohol and fatty acid moieties of wax esters. Incorporation into fatty alcohol was NADPH- rather than NADH-specific. Preparations from deep-living species had a greater percentage of total radioactivity in the fatty alcohol moieties of wax esters than preparations from shallow-living species. We conclude that the level of wax esters in a given species is correlated with the rate at which the species biosynthesises these lipids de novo; deep-living species have higher rates of wax ester biosynthesis and higher levels of wax esters than shallow-living species. The results support the thesis that wax esters in oceanic crustaceans are derived largely from the animals' internal biosynthetic activities, presumably in response to particular biochemical and/or physiological requirements, rather than from their diets.

Catégories Science-Metrix
  • 1 - natural sciences
  • 2 - biology
  • 3 - marine biology & hydrobiology
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
Catégories Scopus
  • 1 - Physical Sciences ; 2 - Environmental Science ; 3 - Ecology
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Aquatic Science
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Ecology, Evolution, Behavior and Systematics
Catégories WoS
  • 1 - science ; 2 - marine & freshwater biology
Identifiant ISTEX
DA672071E079E1074EADEB3660037699FA778B49
Revue

Marine Biology

Année de publication
1978
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
9.58
Sous-corpus
  • Arthropodes
Type de publication
Journal
ark:/67375/1BB-HKKK5M61-P
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