Nom du corpus

Corpus Systématique Animale

Titre du document

The constraints on maximal activity in spiders

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Nom du fichier dans la ressource
Insectes_v2b_00303
Auteur(s)
  • Kenneth N. Prestwich
Affiliation(s)
  • Department of Zoology, University of Florida, 32611, Gainesville, Florida, USA
  • Department of Biology, College of the Holy Cross, 01610, Worcester, Massachusetts, USA
Résumé

1. Concentration changes of phosphagen (arginine phosphate) and adenine nucleotides (ATP, ADP, AMP) and Pi, some glycolytic and Krebs cycle intermediates,d-lactate, and carbohydrate substrates were measured in the prosomas and legs of two species of spider,Filistata hibernalis andLycosa lenta at rest and during two min of forced activity. 2. During the first 10 to 15 s of activity, nearly all phosphagen is depleted and adenylate energy charge drops from ca. 0.9 to a value of 0.6 to 0.7. For the remainder of the two min of activity, a steady state with respect to phosphagen and adenine nucleotides is maintained (Figs. 4–7). 3. Rates ofd-lactate accumulation appear to be constant or to increase after the first 10 s of activity (Fig. 3). In these spiders, the highest rates of lactate accumulation are not associated with the fastest running speeds. 4. The rapid decrease in movement that occurs over the first 10 to 20 s of activity in these and many other species of spiders may be largely related to the depletion of high-energy phosphate (? P): maximum rates of anaerobic and aerobic synthesis of ? P are several times lower than are the rates at which ? P is used from stores (Table 3). The large amounts of Pi released by depleting these stores would represent a potent buffer for H+ produced during lactate synthesis (Figs. 6 and 3). 5. Carbohydrate stores do not change significantly and do not appear to be the limiting factor for short (<2 min), maximum bursts of activity. 6. Spiders that lack extensive tracheal systems resemble other lunged animals physiologically and biochemically more than they resemble insects.

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
  • 4 - ecologie animale, vegetale et microbienne
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
94A0350E949FB78EABB5BEF3499D8040AFCC9174
Revue

Journal of Comparative Physiology B

Année de publication
1988
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
10
Sous-corpus
  • Insectes
Type de publication
Journal
ark:/67375/1BB-4NPQN0WC-B
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