Difference between revisions of "Putzer 1985 Comp Biochem Physiol"
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|year=1985 | |year=1985 | ||
|journal=Comp Biochem Physiol | |journal=Comp Biochem Physiol | ||
|abstract=Anaerobic processes were studied in ''Tubifex'' and other aquatic invertebrates. After the aerobic-anoxic transition of Tubifex, succinate accumulated up to about 25 μmol/g W<sub>d</sub> within the first hour of anoxia, but steady-state levels were established after 4hr at only 10 μmol/g W<sub>d</sub> | |abstract=Anaerobic processes were studied in ''Tubifex'' and other aquatic invertebrates. After the aerobic-anoxic transition of Tubifex, succinate accumulated up to about 25 μmol/g W<sub>d</sub> within the first hour of anoxia, but steady-state levels were established after 4hr at only 10 μmol/g W<sub>d</sub> in an open-flow system. | ||
Proprionate accumulated after a lag of 30 min and reached steady-state concentrations of about 30 μmol/g W<sub>d</sub> | Proprionate accumulated after a lag of 30 min and reached steady-state concentrations of about 30 μmol/g W<sub>d</sub> after 5 h of anoxia. | ||
Lactate concentrations did not increase above 4 μmol/g W<sub>d</sub> | Lactate concentrations did not increase above 4 μmol/g W<sub>d</sub> under anoxia. Its accumulation was not induced by exposure to a blood extract, although ''Tubifex'' has the potential for lactate production. | ||
The initial rates of glycolytic endproduct accumulation were increased in the presence of the deproteinized blood extract by 60% (succinate, 0–30 min anoxia) and by 50% and 90% (proprionate, 30–60 min anoxia; 1% and 2% blood extract, respectively). The maximum and steady state levels of these metabolites were not influenced by the hydrolysate of blood. | The initial rates of glycolytic endproduct accumulation were increased in the presence of the deproteinized blood extract by 60% (succinate, 0–30 min anoxia) and by 50% and 90% (proprionate, 30–60 min anoxia; 1% and 2% blood extract, respectively). The maximum and steady state levels of these metabolites were not influenced by the hydrolysate of blood. | ||
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}} | }} | ||
{{Labeling | {{Labeling | ||
|taxonomic group=Annelids | |area=Respiration, Pharmacology; toxicology | ||
|taxonomic group=Crustaceans, Annelids | |||
|preparations=Intact Organism | |preparations=Intact Organism | ||
|injuries=Anaerobic metabolism, Hypoxia | |injuries=Anaerobic metabolism, Hypoxia | ||
|couplingstates=ROUTINE | |couplingstates=ROUTINE | ||
|additional=Twin-Flow | |additional=Twin-Flow | ||
}} | }} |
Revision as of 11:54, 9 August 2013
Putzer V, Gnaiger E, Lackner R (1985) Flexibility of anaerobic metabolism in aquatic oligochaetes (Tubifex sp.). Biochemical and calorimetric changes induced by a deproteinized hydrolysate of bovine blood. Comp Biochem Physiol 82A: 965-970. |
Putzer V, Gnaiger E, Lackner R (1985) Comp Biochem Physiol
Abstract: Anaerobic processes were studied in Tubifex and other aquatic invertebrates. After the aerobic-anoxic transition of Tubifex, succinate accumulated up to about 25 μmol/g Wd within the first hour of anoxia, but steady-state levels were established after 4hr at only 10 μmol/g Wd in an open-flow system.
Proprionate accumulated after a lag of 30 min and reached steady-state concentrations of about 30 μmol/g Wd after 5 h of anoxia.
Lactate concentrations did not increase above 4 μmol/g Wd under anoxia. Its accumulation was not induced by exposure to a blood extract, although Tubifex has the potential for lactate production.
The initial rates of glycolytic endproduct accumulation were increased in the presence of the deproteinized blood extract by 60% (succinate, 0–30 min anoxia) and by 50% and 90% (proprionate, 30–60 min anoxia; 1% and 2% blood extract, respectively). The maximum and steady state levels of these metabolites were not influenced by the hydrolysate of blood.
Aerobic and anaerobic heat dissipation of Lumbriculus variegatus was stimulated by the addition to the medium of a deproteinized hydrolysate of bovine blood. Oxygen uptake of Cyclops abyssorum increased similarly upon the addition of the blood extract under hypoxia. • Keywords: Twin-Flow
• O2k-Network Lab: AT_Innsbruck_Gnaiger E, AT Innsbruck MitoCom
Labels: MiParea: Respiration, Pharmacology; toxicology"Pharmacology; toxicology" is not in the list (Respiration, Instruments;methods, mt-Biogenesis;mt-density, mt-Structure;fission;fusion, mt-Membrane, mtDNA;mt-genetics, nDNA;cell genetics, Genetic knockout;overexpression, Comparative MiP;environmental MiP, Gender, ...) of allowed values for the "MiP area" property.
Stress:Anaerobic metabolism"Anaerobic metabolism" is not in the list (Cell death, Cryopreservation, Ischemia-reperfusion, Permeability transition, Oxidative stress;RONS, Temperature, Hypoxia, Mitochondrial disease) of allowed values for the "Stress" property., Hypoxia
Preparation: Intact Organism"Intact Organism" is not in the list (Intact organism, Intact organ, Permeabilized cells, Permeabilized tissue, Homogenate, Isolated mitochondria, SMP, Chloroplasts, Enzyme, Oxidase;biochemical oxidation, ...) of allowed values for the "Preparation" property.
Coupling state: ROUTINE
Twin-Flow