Published 1976
| Version v1
Report
Measurement of isotopic effects in photosynthetic fixation of CO2 by CO2 enriched in carbon 13 and oxygen 18
Creators
- 1. CEA Centre d'Etudes Nucleaires de Cadarache, 13 - Saint-Paul-les-Durance (France). Service de Radio-Agronomie
Description
The use of 13C and 18O enriched CO2 allows to measure with accuracy isotopic effects, related to the carbon atoms, occuring during the diffusion of carbon dioxide between two phases. Photosynthesis experiments performed with algae suspensions (Euglena gracilis) or aerial leaves (Saccharum officinale, Lycopersicum esculantum, Platanus orientalis, Sinapis alba...) have led to determine an Isotopic Discrimination Factor between 12C and 13C very close to 1. The method can be applied to the study of isotopic effects in enzymatic reactions involving CO2
Abstract (French)
L'emploi de CO2 marque a la fois en 13C et a l'18O permet de mesurer avec precision les effets isotopiques imputables aux atomes de carbone au cours de la diffusion du gaz carbonique entre deux phases. Des experiences de photosynthese effectuees sur des suspensions d'algues (Euglena gracilis) ou sur des feuilles aeriennes (Saccharum officinale, Lycopersicum esculantum, Platanus orientalis, Sinapis alba...) ont conduit a la determination d'un Facteur de Discrimination Isotopique entre 13C et 12C tres voisin de l'unite et compatible avec la loi de Graham pour la diffusion des gaz. La methode est egalement applicable a l'etude, en phase homogene, des effets isotopiques susceptibles d'etre engendres par certaines enzymesAdditional details
Additional titles
- Original title (French)
- Mesure au moyen de CO
Publishing Information
- Imprint Title
- Proceedings of an international colloquium on oxygen isotopes, Cadarache, 4-9 September 1972
- Imprint Pagination
- p. 231-237.
- Report number
- CEA-CR--4
Conference
- Title
- International colloquium on oxygen isotopes.
- Dates
- 04 Sep 1972.
- Place
- Cadarache, France.
INIS
- Country of Publication
- France
- Country of Input or Organization
- France
- INIS RN
- 7232740
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; S63: RADIATION, THERMAL, AND OTHER ENVIRONMENTAL POLLUTANT EFFECTS ON LIVING ORGANISMS AND BIOLOGICAL MATERIALS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- CARBON DIOXIDE; CARBON 13; ISOTOPE EFFECTS; ISOTOPE ENRICHED MATERIALS; LABELLED COMPOUNDS; OXYGEN 18; PHOTOSYNTHESIS
- Descriptors DEC
- CARBON COMPOUNDS; CARBON ISOTOPES; CARBON OXIDES; CHALCOGENIDES; CHEMICAL REACTIONS; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; ISOTOPES; LIGHT NUCLEI; NUCLEI; OXIDES; OXYGEN COMPOUNDS; OXYGEN ISOTOPES; RADIOACTIVE MATERIALS; STABLE ISOTOPES; SYNTHESIS
Optional Information
- Notes
- Imprint:Comptes rendus d'un colloque international sur les isotopes de l'oxygene, Cadarache, 4-9 septembre 1972.