Intestine of Ascaris : oxygen consumption, fermentation acids, and anaerobic synthesis of protein

The oxygen uptakes by pieces of gut from the porcine roundworm, Ascaris suum, under Po2 10 to 710 torr were from 0.6 to $3.0\>\mu l/mg$ dry wt/hr (Qo2). Increasing concentrations of tissue, 30 to 90 mg (dry wt/3 ml) decreased Qo2 in air from 1.9 to 1.1 and only technical grade catalase was found...

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Veröffentlicht in:	The Journal of parasitology 1975-10, Vol.61 (5), p.808-814
Hauptverfasser:	Harpur, R.P, Jackson, D.M
Format:	Artikel
Sprache:	eng
Schlagworte:	Anaerobiosis Animals Ascaris - metabolism Carbon dioxide Carbon Dioxide - metabolism Catalase - metabolism Cellular metabolism Culture Media Female Fermentation Glucose - metabolism Glycine - metabolism Hydrogen-Ion Concentration Intestines Intestines - metabolism Oxygen Oxygen Consumption Oxygen partial pressure Phosphates Protein Biosynthesis Swine Swine - parasitology Tissue weight
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container_title	The Journal of parasitology
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creator	Harpur, R.P Jackson, D.M
description	The oxygen uptakes by pieces of gut from the porcine roundworm, Ascaris suum, under Po2 10 to 710 torr were from 0.6 to $3.0\>\mu l/mg$ dry wt/hr (Qo2). Increasing concentrations of tissue, 30 to 90 mg (dry wt/3 ml) decreased Qo2 in air from 1.9 to 1.1 and only technical grade catalase was found to relieve this inhibition. Conversely aerobic fermentation, judged by acid production, was directly proportional to the amount of tissue present: the acids from this fermentation were 2-methylbutyric (1% of the total), succinic (8%), propionic (40%), and acetic (51%). Glucose did not increase Qo2 but it doubled the incorporation of labeled carbon into protein from glycine-1-14C. Judged by this, protein synthesis proceeded at the same rate under low Po2 (0.01 torr) as under air.
doi_str_mv	10.2307/3279212
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Increasing concentrations of tissue, 30 to 90 mg (dry wt/3 ml) decreased Qo2 in air from 1.9 to 1.1 and only technical grade catalase was found to relieve this inhibition. Conversely aerobic fermentation, judged by acid production, was directly proportional to the amount of tissue present: the acids from this fermentation were 2-methylbutyric (1% of the total), succinic (8%), propionic (40%), and acetic (51%). Glucose did not increase Qo2 but it doubled the incorporation of labeled carbon into protein from glycine-1-14C. Judged by this, protein synthesis proceeded at the same rate under low Po2 (0.01 torr) as under air.</abstract><cop>United States</cop><pub>American Society of Parasitologists</pub><pmid>241780</pmid><doi>10.2307/3279212</doi><tpages>7</tpages></addata></record>
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source	Jstor Complete Legacy; MEDLINE
subjects	Anaerobiosis Animals Ascaris - metabolism Carbon dioxide Carbon Dioxide - metabolism Catalase - metabolism Cellular metabolism Culture Media Female Fermentation Glucose - metabolism Glycine - metabolism Hydrogen-Ion Concentration Intestines Intestines - metabolism Oxygen Oxygen Consumption Oxygen partial pressure Phosphates Protein Biosynthesis Swine Swine - parasitology Tissue weight
title	Intestine of Ascaris : oxygen consumption, fermentation acids, and anaerobic synthesis of protein
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