Effects of growth rate, temperature, season, and body size on glycolytic enzyme activities in the white muscle of atlantic cod (<i>Gadus morhua</i>)

Pelletier, David; Guderley, Helga; Dutil, Jean‐Denis

doi:10.1002/jez.1402650503

Cited by 63 publications

(42 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…On the other hand, observations from Mathers et al (1992a) and Pelletier et al (1993a) contrast the scaling relationship in the present study. They believed that growth rate, rather than body size, is the most important factor accounting for changes in activities of LDH and other glycolytic enzymes (Pelletier et al 1995).…”

Section: Discussioncontrasting

confidence: 94%

“…The procedure from capture to the freezing of muscle tissue was accomplished in less than 30 min. The activities of metabolic enzymes including LDH and CS are stable in fish tissues that are frozen at -70°C for up to several months (Mathers et al 1992a;Pelletier et al 1993a). …”

Section: Sampling Of White Musclementioning

confidence: 99%

“…Laboratory studies have shown a significant relationship between activities of enzymes regulating energy production and somatic growth in various fish species (Mathers et al 1992a,b;Pelletier et al 1993aPelletier et al ,b, 1995. These enzymes are sensitive to feeding regimes in larvae and adults of many fish species, and exhibited reduced activity during starvation (Sullivan & Somero 1983;Clarke et al 1992;Yang & Somero 1993).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Seasonal effect on lactate dehydrogenase and citrate synthase in snapper (Pagrus auratus)

Majed

Wells

McArdle

2002

New Zealand Journal of Marine and Freshwater Research

View full text Add to dashboard Cite

The activities of two enzymes involved in metabolic energy production, lactate dehydrogenase (LDH) and citrate synthase (CS), were determined in the white trunk musculature of snapper, Pagrus auratus (Bloch & Schneider 1801), to determine whether the metabolic capacity reflects seasonal variations. LDH and CS activities for a population of wild fish were monitored on a monthly basis over a period of 1 year and correlated with body length and seasonal variation. Significant correlations were observed between enzyme activity and body length. Increased LDH activity may reflect energy demand for anaerobic burst swimming. In contrast, declining CS activity with increasing body length may indicate a reduction in energy generation. The seasonal variation of CS activity coincided with the somatic growth cycle, increasing from 1.18 U g -1 white muscle in winter to 1.79 in spring and 1.78 in late summer, whereas LDH activity did not show a clear seasonal pattern. This information could be useful for tracking metabolic capacity in field specimens using simple biochemical analysis. M01019

show abstract

Section: Discussioncontrasting

confidence: 94%

Section: Sampling Of White Musclementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Seasonal effect on lactate dehydrogenase and citrate synthase in snapper (Pagrus auratus)

Majed

Wells

McArdle

2002

New Zealand Journal of Marine and Freshwater Research

View full text Add to dashboard Cite

show abstract

“…GPase, glycogen phosphorylase; GSase, glycogen synthase. Landry, S. L. Steele, S. Manning and A. O. Cheek, manuscript submitted for publication), and fish experiencing low or negative growth frequently lose skeletal muscle protein, presumably due to catabolism to meet energy demands (Sullivan and Somero, 1983;Loughna and Goldspink, 1984;Pelletier et al, 1993;Pelletier et al, 1995;Martínez et al, 2003). This is consistent with our observation that soluble protein concentrations (mg·g -1 ·tissue mass) were about 20% lower in skeletal muscle extracts from hypoxic fish compared to normoxic fish.…”

Section: White Skeletal Musclesupporting

confidence: 86%

Effects of long-term hypoxia on enzymes of carbohydrate metabolism in the Gulf killifish,Fundulus grandis

Martínez

Landry

Boehm

et al. 2006

Journal of Experimental Biology

104

View full text Add to dashboard Cite

SUMMARY The goal of the current study was to generate a comprehensive, multi-tissue perspective of the effects of chronic hypoxic exposure on carbohydrate metabolism in the Gulf killifish Fundulus grandis. Fish were held at approximately 1.3 mg l-1 dissolved oxygen (∼3.6 kPa) for 4 weeks, after which maximal activities were measured for all glycolytic enzymes in four tissues (white skeletal muscle, liver, heart and brain), as well as for enzymes of glycogen metabolism (in muscle and liver) and gluconeogenesis(in liver). The specific activities of enzymes of glycolysis and glycogen metabolism were strongly suppressed by hypoxia in white skeletal muscle, which may reflect decreased energy demand in this tissue during chronic hypoxia. In contrast, several enzyme specific activities were higher in liver tissue after hypoxic exposure, suggesting increased capacity for carbohydrate metabolism. Hypoxic exposure affected fewer enzymes in heart and brain than in skeletal muscle and liver, and the changes were smaller in magnitude, perhaps due to preferential perfusion of heart and brain during hypoxia. The specific activities of some gluconeogenic enzymes increased in liver during long-term hypoxic exposure, which may be coupled to increased protein catabolism in skeletal muscle. These results demonstrate that when intact fish are subjected to prolonged hypoxia, enzyme activities respond in a tissue-specific fashion reflecting the balance of energetic demands, metabolic role and oxygen supply of particular tissues. Furthermore, within glycolysis, the effects of hypoxia varied among enzymes, rather than being uniformly distributed among pathway enzymes.

show abstract

“…Pour le muscle, des morceaux dont le poids variait de 2 à 10 g ont été placés à 80° C pendant 24 heures ou jusqu'à poids constant (Pelletier et al, 1993). (Sherrer, 1984).…”

Section: Analyses Calorimétriques 231 Détermination Du Contenu En Eauunclassified

Étude comparative de la condition et de l état reproducteur de morues (Gadus morhua) du Fjord du Saguenay et du Golfe Saint-Laurent

Richard¹

1997

View full text Add to dashboard Cite

MORUES {Gadus morhua) DU FJORD DU SAGUENAY ET DU GOLFE SAINT-LAURENT JUIN 1997bibliothèque Paul-Emile-Bouletj UIUQAC Mise en garde/AdviceAfin de rendre accessible au plus grand nombre le résultat des travaux de recherche menés par ses étudiants gradués et dans l'esprit des règles qui régissent le dépôt et la diffusion des mémoires et thèses produits dans cette Institution, l'Université du Québec à Chicoutimi (UQAC) est fière de rendre accessible une version complète et gratuite de cette oeuvre.Motivated by a desire to make the results of its graduate students' research accessible to all, and in accordance with the rules governing the acceptation and diffusion of dissertations and theses in this Institution, the Université du Québec à Chicoutimi (UQAC) is proud to make a complete version of this work available at no cost to the reader.L'auteur conserve néanmoins la propriété du droit d'auteur qui protège ce mémoire ou cette thèse. Ni le mémoire ou la thèse ni des extraits substantiels de ceux-ci ne peuvent être imprimés ou autrement reproduits sans son autorisation.The author retains ownership of the copyright of this dissertation or thesis. Neither the dissertation or thesis, nor substantial extracts from it, may be printed or otherwise reproduced without the author's permission. Les résultats sont discutés en fonction du cycle connu de reproduction dans le Golfe, avec les implications au niveau de la condition. RÉSUMÉAinsi, les morues du Saguenay sont avantagées par un poids supérieur aux morues du Golfe pour une même longueur.Les morues du Saguenay bénéficient en plus de conditions environnementales leur permettant de s'alimenter à l'année longue; elles ont une condition générale comparable entre l'été et l'hiver, contrairement aux morues du Golfe qui subissent d'importantes fluctuations saisonnières de leur condition et qui cessent généralement de s'alimenter pendant la reproduction. Par la même occasion je salue la participation des pêcheurs de SainteRose-du-Nord qui ont permis l'échantillonnage de leurs prises.L'analyse des données fut simplifiée grâce aux conseils de M. Michel Simoneau que je remercie.Je désire souligner l'apport financier du fonds FCAR.Je remercie enfin mes parents pour leur soutien de tous les instants.

show abstract

Effects of growth rate, temperature, season, and body size on glycolytic enzyme activities in the white muscle of atlantic cod (Gadus morhua)

Cited by 63 publications

References 43 publications

Seasonal effect on lactate dehydrogenase and citrate synthase in snapper (Pagrus auratus)

Seasonal effect on lactate dehydrogenase and citrate synthase in snapper (Pagrus auratus)

Effects of long-term hypoxia on enzymes of carbohydrate metabolism in the Gulf killifish,Fundulus grandis

Étude comparative de la condition et de l état reproducteur de morues (Gadus morhua) du Fjord du Saguenay et du Golfe Saint-Laurent

Contact Info

Product

Resources

About