Zur photosynthetischen CO₂-Fixierung von Synechococcus
Photosynthetic CO₂ fixation of synechococcus
- The cyanobacterium Synechococcus (Anacystis nidulans strain L 1402-1) was grown at + 37 °C in 3.0 vol.% CO2. The effect of preillumination with white light on the subsequent dark 14CO2 fixation was studied under aerobic conditions at + 30 °C. The radioactive carbon first incoiporated into 3-phosphoglyceric acid was transferred during the later periods of dark 14CO2 fixation to phosphoenolpyruvate and aspartate. No labelling or a very low label in sugar monophosphates could be observed. During the dark/light transients the initial fixation product was mainly aspartate. The pattern of 14C-incorporation into photosynthetic products under steady state conditions (10 min photosynthesis) varied with the temperature during the experiments. The radioactive carbon was firstly incorporated into 3-phosphoglyceric acid. During the later periods of photosynthetic 14CO2 fixation an increased 14C-incorporation into aspartate and glutamate could be observed. Our findings were interpreted with operating of a phosphoenolpyruvate carboxylation besides the Calvin cycle.
Author: | Günter DöhlerGND |
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URN: | urn:nbn:de:hebis:30:3-713858 |
DOI: | https://doi.org/10.1515/znc-1980-11-1219 |
ISSN: | 0939-5075 |
ISSN: | 1865-7125 |
Parent Title (German): | Zeitschrift für Naturforschung, C |
Publisher: | Verlag der Zeitschrift für Naturforschung |
Place of publication: | Tübingen |
Document Type: | Article |
Language: | German |
Date of Publication (online): | 2014/06/02 |
Year of first Publication: | 1980 |
Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
Release Date: | 2024/01/29 |
Tag: | 14CO2 Fixation; Effect of Preillumination and Temperature; Synechococcus |
Volume: | 35.1980 |
Issue: | 11-12 |
Page Number: | 4 |
First Page: | 978 |
Last Page: | 981 |
Institutes: | Biowissenschaften |
Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 57 Biowissenschaften; Biologie / 570 Biowissenschaften; Biologie |
Sammlungen: | Universitätspublikationen |
Licence (German): | Creative Commons - Namensnennung-Nicht kommerziell-Keine Bearbeitung 3.0 |