Nom du corpus

Corpus Systématique Animale

Titre du document

Thermostability of haemoglobins from Antarctic fish

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Nom du fichier dans la ressource
Poissons_v2b_000168
Auteur(s)
  • Lynda M. Warren 1
  • Rufus M. G. Wells 2
Affiliation(s)
  • 1) Department of Life Sciences, University of London Goldsmiths' College, Rachel McMillan Building, Creek Road, SE8 3BU, London, UK
  • 2) Department of Zoology, University of Auckland, Private Bag, Auckland, New Zealand
Résumé

Proteins from Antarctic fish are less stable at high temperatures than those from fish from lower latitudes. Investigations into the thermostability of haemoglobins from a range of Antarctic teleosts have been carried out for comparison with data from temperate species. Haemoglobin concentrations following periods of heating at 50°C were analysed spectrophotometrically and the time taken for 50% denaturation (t50%) determined. The effects of pH and salt concentrations were also examined. With the exception of that of Rhigophila dearborni, the haemoglobins were found to be relatively unstable with t50% values ranging from 7.7 to 29.9 min at pH 7. All haemoglobins became less stable on addition of KCl but the effect of pH was variable. Freezing had no effect on the stability of haemoglobin from Dissostichus mawsoni. The thermostability of haemoglobin from a temperate nototheniid, Notothenia angustata, was within the range displayed by its antarctic relatives and it would seem that in general the differences between genera are as great as those between Antarctic and temperate species as a whole.

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
  • 4 - vertebres: zoologie generale, morphologie, phylogenese, systematique, cytogenetique, repartition geographique
Catégories Scopus
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - General Agricultural and Biological Sciences
Catégories WoS
  • 1 - science ; 2 - ecology
  • 1 - science ; 2 - biodiversity conservation
Identifiant ISTEX
1183AD9C68ED30B02053881FD1CA7023C0785F4D
Revue

Polar Biology

Année de publication
1988
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
8.584
Sous-corpus
  • Poissons
Type de publication
Journal
ark:/67375/1BB-5LB6K291-T
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