Nom du corpus

Corpus Systématique Animale

Titre du document

Non-bicarbonate intracellular pH buffering of reptilian muscle

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Mots-clés d'auteur
  • Reptile
  • Muscle
  • pH
  • Buffer
  • Anaerobic
  • ? : intracellular pH buffering capacity
  • EDTA : ethylenediaminetetra-acetic acid
  • HPLC : high performance liquid chromatography
  • I.D. : internal diameter
  • LDH : lactate dehydrogenase
Nom du fichier dans la ressource
Mammiferes_v2b_01789, Oiseaux_v2b_01898, Poissons_v2b_003395, Reptiles_v2b_00562
Auteur(s)
  • S. Blomberg 1
  • J. Baldwin 1
Affiliation(s)
  • 1) Department of Ecology and Evolutionary Biology, Monash University, 3168, Clayton, Victoria, Australia
Résumé

Non-bicarbonate intracellular pH buffering values of skeletal and cardiac muscles were measured for 16 species of Australian reptiles from four orders (snakes, skelctal 19–36 slykes, cardiac 9–17 slykes; lizards, skeletal 25–54 slykes, cardiac 17–19 slykes; turtles, skeletal 25–43 slykes, cardiac 11–24 slykes; crocodile, skeletal 43 slykes). Although a positive correlation between pH buffering capacity and dependence on anaerobic muscle work was found, even the highest reptilian pH buffering values were low relative to equivalent white anaerobic muscles of fish, birds, and mammals. The low non-bicarbonate intracellular pH buffering capacity of reptilian muscle arises through lower contributions from proteins (10–14 slykes), non-protein histidine (7–18 slykes) and phosphate (5–15 slykes). It is concluded that while other vertebrates depend on these intracellular buffers for regulating muscle pH during anaerobic muscle work, reptiles rely less on buffering and instead may tolerate greater pH fluctuations.

Catégories Science-Metrix
  • 1 - health sciences
  • 2 - biomedical research
  • 3 - physiology
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
Catégories Scopus
  • 1 - Life Sciences ; 2 - Biochemistry, Genetics and Molecular Biology ; 3 - Endocrinology
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Animal Science and Zoology
  • 1 - Life Sciences ; 2 - Biochemistry, Genetics and Molecular Biology ; 3 - Biochemistry
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Ecology, Evolution, Behavior and Systematics
  • 1 - Life Sciences ; 2 - Biochemistry, Genetics and Molecular Biology ; 3 - Physiology
Catégories WoS
  • 1 - science ; 2 - zoology
  • 1 - science ; 2 - physiology
Identifiant ISTEX
57CAAABDC4C324E825641C3DF4A49F5F425B8E09
Revue

Journal of Comparative Physiology B

Année de publication
1991
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
8.692
Sous-corpus
  • Mammiferes
  • Oiseaux
  • Poissons
  • Reptiles
Type de publication
Journal
ark:/67375/1BB-0V80WFHK-V
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