In vivo -studies on the function of hemoglobin in the larvae of Chironomus thummi (insecta, diptera)

1. 1. The respiratory rate of the larvae of Chironomus thummi was monitored in a closed system. It was virtually constant until the pO 2 declined below 10 Torr. 2. 2. When hemoglobin was inhibited by CO the uptake of O 2 started decreasing already at 50 Torr. 3. 3. The function of hemoglobin was als...

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Veröffentlicht in:Comparative biochemistry and physiology. A, Comparative physiology Comparative physiology, 1991, Vol.99 (4), p.525-529
1. Verfasser: Zebe, Ernst
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description 1. 1. The respiratory rate of the larvae of Chironomus thummi was monitored in a closed system. It was virtually constant until the pO 2 declined below 10 Torr. 2. 2. When hemoglobin was inhibited by CO the uptake of O 2 started decreasing already at 50 Torr. 3. 3. The function of hemoglobin was also studied by measuring the concentrations of metabolites in the larvae during recovery in hypoxie water (pO 2 = 15 Torr) after preceding anoxia (6hr). 4. 4. Normal levels of lactate, alanine, and malate were re-established within 3 hr. In the presence of CO this was markedly inhibited. 5. 5. Larvae immediately removed from their dwelling-tubes exhibited symptoms ofhypoxia in comparison with controls incubated for 3 hr in normoxic water without substrate.
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ispartof Comparative biochemistry and physiology. A, Comparative physiology, 1991, Vol.99 (4), p.525-529
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subjects Biochemistry. Physiology. Immunology
Biological and medical sciences
CHIRONOMUS RIPARIUS
Chironomus thummi
CONSOMMATION D'OXYGENE
CONSUMO DE OXIGENO
Fundamental and applied biological sciences. Psychology
HEMOGLOBINA
HEMOGLOBINE
Insecta
Invertebrates
LARVAS
LARVE
Physiology. Development
RESPIRACION
RESPIRATION
title In vivo -studies on the function of hemoglobin in the larvae of Chironomus thummi (insecta, diptera)
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